1、工艺流程准备相关图纸、规范书(领料单)及工艺文件→领取所需的电器元件及各种规格导线和辅助材料→熟悉图纸并核对元器件的位置和规格→标识元器件的符号牌-构思线束的走向及几个关键的分支及交汇点的处理方法→下线配线→接线→整理线束→质量自检和清理机柜→报检

　　1. Preparation of relevant drawings, specifications (material requisition) and process documents for the process flow → Collection of required electrical components, various specifications of wires and auxiliary materials → Familiarity with the drawings and verification of the position and specifications of the components → Identification of symbol plates for the components - Concept of the direction of the wiring harness and the handling methods for several key branches and intersections → Offline wiring → Wiring → Sorting of wiring harnesses → Quality self inspection and cleaning of the cabinet → Inspection report

　　2、技术要求2.1.严格依照二次图纸要求、按工艺文件要求、按技术标准要求制做，接线要准确，途径要简捷，布局合理、横平竖直、美观大方、牢固清晰。2.2.选用的二次导线应采用电压不低于500V铜芯塑料绝缘导线（BV、BVR）其截面要求电流回路采用2.5mm2,电压回路采用1.5mm2,其颜色一般为黑色，接地采用黄绿双色导线，截面不小于2.5mm2，电子器件小电流、低电平允许采用小于1.5mm2，但不得小于0.75mm2。计量回路当电力和设计部门有特殊要求时，电流回路为4mm2、电压回路为2.5mm2、零线为2.5mm2，且颜色分别为：A相黄色、B相绿色、C相红色，零线为蓝色配置。2.3.二次回路的线束布置一定要有规律，原则上应以活动门铰链侧由上而下，布置做到合理、牢固、，分流的线束应做到横平竖直、层次分明、整齐美观，除必要弯曲（如转换方向）外，不能有弯斜、扭曲的现象。捆扎方式要规范、牢固可靠、均匀。2.4.所有的门应有可靠牢固的接地装置（接地柱），应与柜体柜架构成一个良好、接地体系。装置采用螺栓不能小于6mm，且接地点上应平整、光滑、无漆渍、无锈痕,连接的导线不能小于2.5mm2(建议采用不小于4mm2裸铜软线)的黄绿双色软线。2.5.二次回路的线束不准在导电部件敷设,高压柜线束与导电部位的净距离3kV不小于75mm，6kV不小于100mm，10kV不小于125mm，35kV不小于300mm。导线线部裸露部位之间及裸露部位与金属框架的电气间隙应不小于4mm，爬电距离应不小于6mm2.6.电器元件上接点一般只连接一根导线，必要时允许连接二根，其工艺要求应符合以下要求，所有接点与导线连接时应有防松措施，拧紧后应有2～5扣螺纹，所有的紧固件(螺丝、垫圈、螺母)均应为镀锌件。导线中间不允许有接头。2.7.电流回路的连接应通过端子连接，且端子应为试验型接触良好的端子，同时电流回路应有可靠的接地，方式应符合相关要求。所有端子间的连接应采用专用连接片连接。2.8.为了保证接点的可靠，所有导线（除单根导线需做羊眼圈外）应有冷压接头（冷压线鼻）,冷压接点选用的规格与制作应符合其工艺要求。a)预绝缘端头与导线的冷压接后尺寸见图a。b)管形预绝缘端头与导线的冷压后尺寸见图b。c)裸端头与导线的冷压接后尺寸见图c。d)触针式端头与导线冷压接后的尺寸见图d。2.9.为了严肃二次图纸与实物的一致性,便于有关部门验证及维护的方便,所有导线端头与元器件应有明显正确的标志，即导线的标记套、元器件符号牌。导线标记套的规格应与导线线径匹配,接线后的方向应与图纸一致,元器件的符号牌粘贴位置应醒目、正确、美观，便于观看与核对。

　　2. Technical requirement 2.1. Strictly follow the requirements of the secondary drawings, process documents, and technical standards for manufacturing. The wiring should be accurate, the route should be simple, the layout should be reasonable, horizontal and vertical, beautiful and elegant, and firm and clear. 2.2. The selected secondary wire should be a copper core plastic insulated wire (BV, BVR) with a voltage of not less than 500V. The cross-sectional area of the current circuit should be 2.5mm2, and the voltage circuit should be 1.5mm2, generally black in color. The safety grounding should use a yellow green dual color wire with a cross-sectional area of not less than 2.5mm2. For small current and low level electronic devices, it is allowed to use a cross-sectional area of less than 1.5mm2, but not less than 0.75mm2. When there are special requirements from the power and design departments for the metering circuit, the current circuit is 4mm2, the voltage circuit is 2.5mm2, and the neutral wire is 2.5mm2, and the colors are: yellow for phase A, green for phase B, red for phase C, and blue for the neutral wire configuration. 2.3. The wiring harness layout of the secondary circuit must be regular. In principle, it should be arranged from top to bottom on the hinge side of the movable door, and the layout should be reasonable, firm, and safe. The diverted wiring harness should be horizontal and vertical, with clear layers, neat and beautiful. Except for necessary bending (such as changing direction), there should be no tilting or twisting phenomenon. The bundling method should be standardized, firm, reliable, and even. 2.4. All doors should have reliable and secure grounding devices (grounding columns), which should form a good and safe grounding system with the cabinet frame. The device should use bolts with a diameter of no less than 6mm, and the grounding point should be flat, smooth, without paint stains or rust marks. The connected wires should not be less than 2.5mm2 (it is recommended to use bare copper flexible wires with a diameter of no less than 4mm2) with yellow green dual color flexible wires. 2.5. The wiring harness of the secondary circuit is not allowed to be laid on conductive parts. The net distance between the high-voltage cabinet wiring harness and conductive parts should be no less than 75mm for 3kV, no less than 100mm for 6kV, no less than 125mm for 10kV, and no less than 300mm for 35kV. The electrical gap between the exposed parts of the wire and the metal frame should not be less than 4mm, and the creepage distance should not be less than 6mm2.6. Generally, only one wire is connected to the contact on the electrical component, and if necessary, two wires are allowed to be connected. The process requirements should meet the following requirements. All contacts should have anti loosening measures when connected to the wire, and after tightening, there should be 2-5 threads. All fasteners (screws, washers, nuts) should be galvanized. No joints are allowed in the middle of the wire. 2.7. The connection of the current circuit should be made through terminals, and the terminals should be of the test type with good contact. At the same time, the current circuit should have a reliable grounding method that meets relevant requirements. All connections between terminals should be made using dedicated connectors. 2.8. In order to ensure the safety and reliability of the contacts, all wires (except for single wires that require sheep eye circles) should have cold pressed joints (cold pressed wire noses), and the specifications and production of cold pressed contacts should meet their process requirements. a) The dimensions of the pre insulated end and the wire after cold crimping are shown in Figure a. b) The dimensions of the tubular pre insulated end and the wire after cold crimping are shown in Figure b. c) The dimensions of the bare end and the wire after cold crimping are shown in Figure c. d) The dimensions of the contact pin end and the wire after cold crimping are shown in Figure d. 2.9. In order to ensure the consistency between the secondary drawing paper and the actual product, and for the convenience of verification and maintenance by relevant departments, all wire ends and components should have clear and correct markings, namely wire marking sleeves and component symbol plates. The specifications of the wire marking sleeve should match the wire diameter, and the direction after wiring should be consistent with the drawing. The symbol plate of the component should be pasted in a prominent, correct, and beautiful position for easy viewing and verification.

　　3、配线的准备工作3.1.领取图纸，技术规范资料（规范书）,并将其消化和策划。3.2.按图纸领取元器件及各种规格导线和辅助材料。3.3.准备好必需的辅助材料如梅花螺丝刀，吸盘，压线钳，钢板尺，BVR铜线，扎带，冷压端头，斜口等。4.4.然后按照盘面布置图安装元器件如指示灯和转换开关等，并且在各个元器件下粘贴标签（标签长度为15mm,字体为4:3)标签应贴在同一条直线上如图所示。3.5.然后用工具(工具的宽度为13mm)画线如图A所示,对于单排贴吸盘的指示灯粘贴吸盘时距离应大于工具的宽度大约20-22mm。3.6.确定所画线平直后进行粘贴吸盘如图B3.7.根据导线规格选择号码套管，并按图纸及配线的先后次序打印标记套(回路标号)，标记套(回路标号)应清楚、牢固、完整不脱色，编写元件符号牌要求字迹清晰端正，不得涂改、不褪色。3.8.按图纸与规范书的要求领取并核对元器件型号规格和安装位置。3.9.所有接入电器元件的导线端头均应套入号码管（标记套）,除电器元件本身连线外,号码管套入导线后的阅示方向原则：站在产品正前方水平方向从左到右的读入方向；垂直方向从下到上的读入方向；若为屏后走线时，站在屏后观看与屏前相同，号码管原则上应先套入回路号，然后套入对标记套，导线两端头的标记套应与二次图相符，方向一律按下图所示方向：

　　3. Preparation work for wiring 3.1. Obtain drawings, technical specification documents (specification books), and digest and plan them. 3.2. Obtain components, various specifications of wires, and auxiliary materials according to the drawings. 3.3. Prepare necessary auxiliary materials such as a Phillips screwdriver, suction cup, crimping tool, steel ruler, BVR copper wire, zip ties, cold pressed end caps, slanted mouth, etc. 4.4. Then install components such as indicator lights and conversion switches according to the panel layout diagram, and paste labels (label length of 15mm, font of 4:3) under each component. The labels should be pasted on the same straight line as shown in the figure. 3.5. Then use a tool (with a width of 13mm) to draw a line as shown in Figure A. For the indicator light with a single row of suction cups, the distance between the suction cups should be about 20-22mm greater than the width of the tool. 3.6. After confirming that the drawn line is straight, paste the suction cups as shown in Figure B3.7. Select the number sleeve according to the wire specifications, and print the marking sleeve (circuit number) in the order of the drawing and wiring. The marking sleeve (circuit number) should be clear, firm, and complete without fading. The writing of the component symbol plate requires clear and upright handwriting, and should not be altered or faded. 3.8. Obtain and verify the component model, specifications, and installation position according to the requirements of the drawings and specifications. 3.9. All wire ends connected to electrical components should be inserted into a marking sleeve. Except for the wiring of the electrical components themselves, the reading direction of the marking sleeve after inserting the wire should follow the principle of standing in front of the product in a horizontal direction from left to right; Vertical reading direction from bottom to top; If the wiring is done from behind the screen, standing behind the screen to view it is the same as in front of the screen, the number tube should be inserted with the circuit number first, and then with the corresponding marking sleeve. The marking sleeves at both ends of the wire should match the secondary diagram, and the direction should be consistent with the direction shown in the following figure:

　　4、下线工艺要求4.1.下线前应根据装置的结构形式,元器件的安装位置完整地构思确定线束的走向，有几个分支及交汇点以及固定、包扎的方式,然后按导线行的途径大致量出导线的长度，同时应考虑每一个接点接成弧形圈所需的长度,放50～100mm的余量后剪下所需导线,两端再套上标记套(号码管)。4.2.用于二次回路的导线一般采用单芯硬线(BV)，在经常受弯曲处如插头、过门线均采用多股塑料绝缘软线（BVR）。4.3.抽屉式成套开关设备应采用铜质多股塑料绝缘软线（BVR）。4.4.过门线下线长度应能使门打开到极限位置而不受拉力影响。4.5.插件及抽屉内凡采用软联接的插头座下线长度应保证插头能有充分插拔余量如图。4.6.装有电子元件的控制装置二次线应考虑到远离一次回路，以防干扰。4.7.用于二次回路的导线颜色及线径：设备内部敷设一般用黑色，接地用黄绿双色线，接地线不得小于2.5mm2，计量回路除电力和设计部门有要求时,电流回路一律用4mm2,且用黄(A相)、绿(B相)、红(C相)、淡兰(N) 色线，电压回路一律用2.5mm2，颜色同上。常规的电流回路用2.5mm2导线, 控制保护回路为1.5mm2，连接电子器件的小电流低电平电路允许采用小于1.5mm2的导线,但不得小于0.75mm2(采用1mm2如微机上)。4.8.二次线的敷设应考虑到不得占用一次施工路径及供用户引进引出电缆的空间位置，并注意留出适当的空位以保证与裸母线之间有足够的距离,并要注意避开元件的喷弧范围。

　　4. Offline process requirements 4.1. Before going offline, the direction of the wire harness should be fully conceptualized and determined based on the structural form of the device, the installation position of the components, and the number of branches and intersections, as well as the methods of fixing and wrapping. Then, the length of the wire should be roughly measured according to the path of the wire row. At the same time, the length required for each contact to form an arc-shaped circle should be considered. After placing a margin of 50-100mm, the required wire should be cut off, and marking sleeves (number tubes) should be placed on both ends. 4.2. Wires used for secondary circuits generally use single core hard wires (BV), and multi stranded plastic insulated flexible wires (BVR) are used in frequently bent areas such as plugs and door wires. 4.3. Drawer type switchgear should use copper multi strand plastic insulated flexible wire (BVR). 4.4. The length of the wire passing through the door should be able to open the door to its maximum position without being affected by tension. 4.5. For plugs and drawers that use soft connections, the offline length of the plug socket should ensure that the plug has sufficient insertion and extraction allowance, as shown in the figure. 4.6. The secondary wires of control devices equipped with electronic components should be kept away from the primary circuit to prevent interference. 4.7. Color and diameter of wires used for secondary circuits: Black wires are generally used for internal installation of equipment, and yellow green dual color wires are used for safety grounding. The grounding wire should not be less than 2.5mm2. For metering circuits, except for those required by the power and design departments, 4mm2 wires should be used for current circuits, and yellow (A-phase), green (B-phase), red (C-phase), and light blue (N) wires should be used. 2.5mm2 wires should be used for voltage circuits, with the same color as above. Conventional current circuits use 2.5mm2 wires, while control and protection circuits use 1.5mm2 wires. Small current low-level circuits connected to electronic devices are allowed to use wires smaller than 1.5mm2, but not less than 0.75mm2 (1mm2 is recommended for microcomputers). 4.8. The laying of secondary lines should take into account not occupying the primary construction path and the space for users to introduce and exit cables, and pay attention to leaving appropriate space to ensure sufficient safety distance between the bare busbar, and avoid the arc spraying range of components.

　　5、端子安装与固定5.1.开关柜内端子应集中安装成排，按端子的数量可排成单排或多排端子，位置垂直从上到下,柜顶从后到前,水平从左到右(正视)；接线应与二次图纸一致性。5.2.端子排安装位置：高压柜应装于仪表室内，低压柜一般型应装于门链侧垂直安装；抽出式低压柜进线、母联柜应于铰链侧垂直安装，特殊情况（无法垂直安装）允许在主开关上侧合适位水平安装，但应注意飞狐距离及导电部位距离。5.3.端子装配时，始末两端必须装以挡板，不同安装单元的端子排也应在始末端安装挡板。端子排上逢5遇10应写明其顺序号。

　　5. Terminal installation and fixation 5.1. The terminals inside the switchgear should be centrally installed in rows, which can be arranged in single or multiple rows according to the number of terminals. The positions should be vertical from top to bottom, cabinet top from back to front, and horizontal from left to right (front view); The wiring should be consistent with the secondary drawing. 5.2. Terminal block installation position: The high-voltage cabinet should be installed in the instrument room, and the low-voltage cabinet should generally be installed vertically on the door chain side; The incoming line of the pull-out low-voltage cabinet and the busbar cabinet should be installed vertically on the hinge side. In special circumstances (where vertical installation is not possible), it is allowed to be installed horizontally in a suitable position on the upper side of the main switch, but attention should be paid to the flying fox distance and the distance between conductive parts. 5.3. During terminal assembly, baffles must be installed at both ends, and baffles should also be installed at the beginning and end of terminal blocks for different installation units. The sequence number should be clearly indicated for every 5 and 10 on the terminal block.

　　6、行线、接线工艺要求6.1.行线方式有完全行线槽行线，行线槽与成束捆扎混合行线及成束线捆扎行线等型式，采用行线槽行线方式。6.2.行线时自上而下地将线束理成塔形或多边形（线束太大时也可理成圆形)，然后分路，并将上下笔直的线路放在外档(往往是主干线的长线束放外层)，将中途要折弯的线路顺序放入内档，尽量避免线间和层间交叉，特别是必须理直，这样线束从始终被整齐的盖住易于美观，接线头从线束下或中经背面绕过线束成弧形接入配件接线桩，线头拉出的根部必须捆扎。如下图：6.3.二次回路的导线线束敷设过程中需要弯曲转换方向时，用手指进行弯曲后再直或横行走，不得使用夹咀或其它锋利工具弯曲，以保证导线绝缘层不受损伤。当线束过大确实需要借助工具弯曲时，应选用不带棱形钳齿的工具进行。6.4.线束分支处原则上应遵从小线束服从大线束的原则，即一般情况不改变主线束的走线路径，小线束通过横或竖折弯方式从大线束中分出，线束折弯处两边就近必须捆扎。线束在行线过程不允许出现有斜拉现象，除过门线及部分要跨越障碍的场合外一律采用或竖或横的两种行线方式。且所有扎线处不得有凹凸不直或有歪斜现象。如下图：?6.5.用行线槽行线时行线槽应敷设在柜(箱)的两侧或底部，若是元件布置排列明显和线束较多时也可在中间敷设，装于引出线的下面，行线槽的安装部位一般以垂直和水平为主。6.6.行线槽的安装应采用尼龙铆钉或其它绝缘件进行紧固，行线槽出线口不允许有毛刺。6.7.当用缠绕管捆扎时，对固定的线束选用的缠绕管其内径是线束的二分之一左右，活动的线束选用的缠绕管其内径接近线束的外径。6.8.缠绕在线束上的缠绕管其间距约为缠绕管本身的宽度。6.9.对1.5mm2及其以下的导线线束，应采用全长包扎，对2.5mm2及其以上的导线线束，可采用分段包扎，包扎时每隔100～150mm左右均匀地扎一段，每段约5圈。6.11.捆扎带的抽紧程度以线束被捆线基本抽紧为准，不能损伤导线的绝缘层，抽紧捆线后留2mm左右，多余的用斜口钳剪去。6.12.捆扎好的线束应逐段立即填入扁形线夹，拉直结束拧紧线夹，边扎边固定直全部结束，线夹夹持部的线束应先用塑料胶带包扎妥善后方可填入线夹固扎线间距应尽量统一，线夹固定后的线束应无晃动现象。6.13.线束多不得超过24根，每层多不得超过6根，如实际需要较多根数时，尽可能采用行线槽方法，为保证线束美观整齐，应在各层线间垫上硬质卡纸或硬质塑料薄片，卡片宽度根据每层线列实际宽度确定，以不露线束两侧导线为界，该位置应有扎线捆扎牢固，线束粗细可按实际导线根数确定，一般为单层二根，双层四根六根，三层九根十二根，四层二十二十四根。见图B：6.14.二次回路的导线线束不准在导电部件和元器件本身上固定和敷设(框架式断路器除外），也不许直接敷设在金属铁板上，必须腾空3～5mm或导线包以塑料绝缘带，采用支承样板铁条敷设线束时，样板铁条必须包以塑料绝缘带。6.15.在经过包扎的样板铁上敷设线束的包扎应按如下：a)先用塑料布一端插入线束中间加以抽紧。b)将导线整齐排列成多边形或塔形。c)然后包扎2～5层，包扎后用捆扎带抽紧，且捆扎带尾朝上，等全部完工后，齐根剪去带尾。7.16.不在样板铁上敷设线束的包扎，将导线理顺整齐排列成近似于圆形的线束，用捆扎带包扎，线束中间的扎线处要均匀，其横向扎线间距不得大于150mm，纵向间距不得大于200mm，扎线处要求扎紧，用手滑动,不得松动。6.17.线束在柜内敷设时线束与金属柜体之间应用绝缘线夹进行固定。线夹间距水平方向不大于300mm，垂直方向不大于400mm，离线束转角处30mm左右，必须配有绝缘线夹将其固定。6.18.对角钢结构的箱柜应采用支件在适当位置紧固,并安装线夹，对需在安装板，面板上固定线束的，应在适当位置设绝缘线夹进行紧固。6.19.导线与线束需要穿过金属板时，必须在金属板的穿孔处加装橡胶圈或齿形带。交流回路的导线在穿过钢制金属隔板时，该回路所有相线（包括中性线）均应从同一孔中穿过。6.20.绝缘导线不允许贴近具有不同电位的裸露的带电部位。线束与带电体之间的距离不小于15mm。6.21.过门的线束两端要用线夹压紧,过门线应套波纹管呈“U”形或“S”形。线束的长度应保证门及导电物件开启关闭时线束不得叠死，在开启及关闭过程中不应擦门框，同时应确保门开启≥120°。6.22.二次回路的导线线端裸露部位之间及导线线端裸露部位与金属骨架的电气间隙不应小于4mm，爬电距离不小于6mm。6.23.行线时不允许损伤柜体表面涂层，安装和接线过程中不能损坏电器元件。6.24.行线过程中，不允许使任何异物落入元器件内，特别是有触点的元器件的触点间隙内或磁性元器件的线圈间隙内以及断路器和刀开关的灭弧室内，以免引起配件卡死或短路。6.25.在一般情况下导线不允许弯许多类似弹簧状的圆圈后接线，但接地线和元器件有活动接点的连接线除外，接地线和有活动连接线的圈数限定5圈，如下图：6.26.元件本身引线与导线的连接必须配有接线片或小接线过渡端子，不允许直接搭接。

　　6. 6.1 Requirements for Wiring and Wiring Process 6.1. Wiring methods include fully slotted wiring, mixed wiring with bundled wiring, and bundled wiring. It is recommended to use slotted wiring. 6.2. When wiring, the wire harness should be arranged in a tower or polygon shape from top to bottom (circular shape can also be used if the harness is too large), and then divided. The straight lines should be placed on the outer shelf (usually the longest line of the main line should be placed on the outer shelf), and the lines that need to be bent in the middle should be placed on the inner shelf in order to avoid crossing between lines and layers as much as possible. Especially, the top layer must be straightened so that the harness is covered by a neat top layer from beginning to end, making it easy to look beautiful. The wiring head should be bent around the harness from the bottom or middle to the back and connected to the accessory wiring post. The root of the wire head pulled out must be tied. As shown in the following figure: 6.3. When the wiring harness of the secondary circuit needs to be bent and changed direction during the laying process, it should be bent with fingers before walking straight or horizontally. Clamps or other sharp tools should not be used to bend, to ensure that the insulation layer of the wire is not damaged. When the wire harness is too large and needs to be bent with the help of tools, tools without angular pliers should be used. 6.4. In principle, the branching of the wire harness should follow the principle of small wire harnesses obeying large wire harnesses, that is, in general, the routing path of the main wire harness should not be changed. The small wire harness should be separated from the large wire harness by horizontal or vertical bending, and the two sides of the wire harness bending must be tied nearby. During the wiring process, it is not allowed to have any diagonal pulling phenomenon. Except for the door line and some situations where obstacles need to be crossed, both vertical and horizontal wiring methods must be used. And all cable ties must not have any unevenness or skewness. As shown in the figure below:? 6.5. When using cable trays for wiring, the cable trays should be laid on both sides or at the bottom of the cabinet (box). If the components are arranged clearly and there are many wiring harnesses, they can also be laid in the middle and installed under the lead out wires. The installation position of the cable trays is generally vertical and horizontal. 6.6. The installation of cable trunking should be fastened with nylon rivets or other insulating components, and the outlet of the cable trunking should not have burrs. 6.7. When bundling with a winding tube, the inner diameter of the winding tube selected for the fixed wire harness is about half of the wire harness, and the inner diameter of the winding tube selected for the movable wire harness is close to the outer diameter of the wire harness. 6.8. The spacing between the winding tubes wound on the wire harness is approximately the width of the winding tubes themselves. 6.9. For wire harnesses of 1.5mm2 and below, full length wrapping should be used. For wire harnesses of 2.5mm2 and above, segmented wrapping can be used. When wrapping, a section should be evenly tied every 100-150mm, with about 5 turns per section. 6.11. The tightness of the binding tape should be based on the basic tightness of the wire harness being tied, and the insulation layer of the wire should not be damaged. After tightening the tied wire, leave about 2mm, and cut off the excess with diagonal pliers. 6.12. The bundled wire harness should be immediately filled into the flat wire clamp section by section. After straightening, tighten the wire clamp and fix it while tying until it is completely finished. The wire harness at the clamping part of the wire clamp should be wrapped properly with plastic tape before being filled in. The spacing between the wire clamps should be as uniform as possible, and the wire harness fixed by the wire clamp should be free of shaking. 6.13. The maximum number of wire harnesses shall not exceed 24, and the maximum number of wires per layer shall not exceed 6. If a large number of wires are actually required, the method of using cable trays shall be used as much as possible. To ensure the beauty and neatness of the wire harness, hard cardboard or hard plastic sheets shall be placed between each layer of wires. The width of the card shall be determined according to the actual width of each layer of wire columns, with the wires on both sides of the wire harness not exposed as the boundary. The position shall be firmly tied with zip ties. The thickness of the wire harness can be determined according to the actual number of wires, generally two in a single layer, four to six in a double layer, nine to twelve in a three layer, and twenty to twenty-four in a four. Refer to Figure B: 6.14. The wiring harness of the secondary circuit is not allowed to be fixed or laid on conductive parts and components themselves (except for frame type circuit breakers), nor is it allowed to be directly laid on metal plates. It must be empty by 3-5mm or wrapped with plastic insulation tape. When laying the wiring harness with supporting sample iron bars, the sample iron bars must be wrapped with plastic insulation tape. 6.15. The wiring harness should be wrapped on the wrapped sample iron as follows: a) First, insert one end of plastic cloth into the middle of the wiring harness and tighten it. b) Arrange the wires neatly into a polygon or tower shape. c) Then wrap it in 2-5 layers, tighten it with a tie tape, and keep the end of the tie tape facing upwards. After all is completed, cut off the ends of the tie tape completely. 7.16. Do not wrap the wire harness on the sample iron, arrange the wires neatly into a circular harness, wrap them with bundling tape, and ensure that the middle of the harness is evenly tied. The horizontal spacing between the ties should not exceed 150mm, and the vertical spacing should not exceed 200mm. The ties should be tightly tied, slid by hand, and not loose. 6.17. When the wiring harness is laid inside the cabinet, insulated wire clamps should be used to fix it between the wiring harness and the metal cabinet body. The spacing between wire clamps should not exceed 300mm in the horizontal direction and 400mm in the vertical direction, and around 30mm at the corner of the wire harness. Insulated wire clamps must be provided to fix it. 6.18. Boxes and cabinets with diagonal steel structures should be fastened at appropriate positions using supports and equipped with wire clamps. For those that require fixing wire harnesses on installation plates or panels, insulated wire clamps should be installed at appropriate positions for fastening. 6.19. When wires and harnesses need to pass through metal plates, rubber rings or toothed belts must be installed at the perforations of the metal plates. When the wires of the AC circuit pass through the steel metal partition, all phase wires (including neutral wires) of the circuit should pass through the same hole. 6.20. Insulated wires are not allowed to be close to exposed live parts with different potentials. The distance between the wire harness and the charged body shall not be less than 15mm. 6.21. The two ends of the wire harness passing through the door shall be clamped tightly with wire clamps, and the wire passing through the door shall be wrapped in a corrugated pipe in a "U" or "S" shape. The length of the wiring harness should ensure that the wiring harness does not stack when the door and conductive objects are opened and closed. The door frame should not be wiped during the opening and closing process, and the door opening should be ≥ 120 °. 6.22. The electrical clearance between exposed wire ends of the secondary circuit and between exposed wire ends and the metal frame should not be less than 4mm, and the creepage distance should not be less than 6mm. 6.23. It is not allowed to damage the surface coating of the cabinet during wiring, and electrical components should not be damaged during installation and wiring. 6.24. During the wiring process, it is not allowed for any foreign objects to fall into the components, especially in the contact gaps of components with contacts or in the coil gaps of magnetic components, as well as in the arc extinguishing chambers of circuit breakers and knife switches, to avoid component jamming or short circuits. 6.25. In general, wires are not allowed to be bent into many spring like circles for wiring, except for connecting wires with movable contacts between grounding wires and components. The number of turns for grounding wires and connecting wires with movable contacts is limited to 5, as shown in the following figure: 6.26. The connection between the component's lead wire and the wire must be equipped with terminal blocks or small wire transition terminals, and direct overlap is not allowed.

　　6.27.行线时如遇导线太短，必须调换，不允许将导线加长。6.28.产品上所有的接线端子，应根据接线图的要求，标注或套上标记套(回路标号)。6.29.有接地母线的产品，每个互感器必须下一根接地线接地母线排上，其余产品互感器相连后必须下一根接地导线到接地螺钉。6.30.二次线接到元器件桩头时，线不能贴牢元器件敷设或用吸盘固定在元器件上，上线方式也应有序，二次线不能遮住元器件一次接线桩头，应考虑到配件本身的发热及检修拆换方便。6.31.二次线在敷设途中如遇有金属障碍时，应加以弯曲越过，中间保持4mm以上的距离。

　　6.27. If the wire is too short during wiring, it must be replaced and it is not allowed to lengthen the wire. 6.28. All wiring terminals on the product should be labeled or fitted with marking sleeves (circuit numbers) according to the requirements of the wiring diagram. 6.29. For products with grounding busbars, each transformer must have a grounding wire connected to the grounding busbar, and for other products, after connecting the transformers, a grounding wire must be connected to the grounding screw. 6.30. When connecting the secondary wire to the component pile head, the wire should not be firmly attached to the component or fixed on the component with suction cups. The wiring method should also be orderly, and the secondary wire should not cover the primary wiring pile head of the component. Consideration should be given to the heating of the accessories themselves and the convenience of maintenance and replacement. 6.31. If there is a metal obstacle during the laying of the secondary line, it should be bent and crossed, with a distance of at least 4mm in between.

　　7、线头制作及配件上线工艺要求线头制作:即对线头弯圆或冷压铜制接线端头。7.1.线头制作时不能使导线的线芯和绝缘层受到损伤。7.2.剥线钳刃口应与线径相匹配。7.3.压线钳的选择不同的端头应分别采用相适应的专用冷压接钳。a)预绝缘端头压线钳口见图1所示。b)裸端头压线钳口见图2所示。c)管形预绝缘端头压线钳口见图3所示。e)触针式端头压线钳口见图4所示。7.4.线芯与端头配合a)预绝缘端头与导线的冷压接后尺寸见图5。b)管形预绝缘端头与导线的冷压后尺寸见图6。c)裸端头与导线的冷压接后尺寸见图7。d)触针式端头与导线冷压接后的尺寸见图87.5.对单芯导线线头一般采用尖咀钳或圆头钳进行弯成单眼圈,弯圈后的导线其线芯不允许受到损伤，圆圈应基本成圆形且其内径应比电器接点螺栓直径大0.5～1mm，羊眼圈末端距导线绝缘应有2～4mm距离，保证装入接点时垫圈不压着导线绝缘，导线接入接点后，从垂直方向看去不得有线芯弯成的羊眼圈露出；单眼圈呈顺时针接入螺钉。7.6.工艺要求a）端子的接线均应采用冷压接端头，线芯直接接于电器接线端子只有该接线端子适应于这种方法才能允许。b）预绝缘端头压接后，绝缘部分不能出现破损或开裂。c）导线芯插入冷压接端头后，不能有末插入的线芯或线芯露出端子管外部以及绞线的现象，更不能剪断线芯。（见图所示）d）冷压接端头的规格必须与所接入的导线直径相吻合，导线与冷压接端头的配合见本守则的规定。e）剥去导线绝缘层后，应尽快与冷压接端头压接，避免线芯产生氧化膜或粘有油污。f）压接后导线与端头的抗拉强度应不低于导体本身抗拉强度的60%。不同端头与导线压接拉力负荷值见表。端头规格与端头配合的导线截面积mm2拉力负荷值，NN预绝缘端头裸端头0.5.50.5.560751.0.00.75.7590120

　　7. Wire head production and accessories online process requirements: Wire head production: that is, bending the wire head into a circle or cold pressing copper terminal head. 7.1. During the production of wire ends, the core and insulation layer of the wire must not be damaged. 7.2. The cutting edge of the wire stripping pliers should match the wire diameter. 7.3. The selection of crimping pliers should use specialized cold crimping pliers that are suitable for different ends. a) The pre insulated end crimping clamp is shown in Figure 1. b) The bare end crimping jaws are shown in Figure 2. c) The clamping jaws for the pre insulated end of the tube are shown in Figure 3. e) The needle type end crimping jaws are shown in Figure 4. 7.4. Core and Terminal Coordination a) The dimensions of the pre insulated terminal and the wire after cold crimping are shown in Figure 5. b) The dimensions of the pre insulated end of the tube and the wire after cold pressing are shown in Figure 6. c) The dimensions of the bare end and wire after cold crimping are shown in Figure 7. d) The dimensions of the contact pin end and the wire after cold crimping are shown in Figure 87.5. For single core wire ends, sharp pliers or round pliers are generally used to bend them into a single eye circle. The wire core of the bent wire should not be damaged. The circle should be basically circular and its inner diameter should be 0.5-1mm larger than the diameter of the electrical contact bolt. The end of the eye circle should be 2-4mm away from the wire insulation to ensure that the gasket does not press the wire insulation when installing the contact. After the wire is connected to the contact, the eye circle formed by the wire core bending should not be exposed when viewed from the vertical direction; The single eye socket is connected clockwise with screws. 7.6. Process requirements: a) Cold crimping terminals should be used for terminal wiring, and the wire core should be directly connected to the electrical terminal. Only when the terminal is suitable for this method can it be allowed. b) After crimping the pre insulated end, the insulation part should not be damaged or cracked. c) After inserting the wire core into the cold crimping end, there should be no un inserted wire core or wire core exposed outside the terminal tube or stranded wire, and the wire core should not be cut. (As shown in the figure) d) The specifications of the cold crimping terminal must match the diameter of the connected wire, and the coordination between the wire and the cold crimping terminal is specified in this code of practice. e) After stripping the insulation layer of the wire, it should be crimped with the cold crimping end as soon as possible to avoid the formation of oxide film or oil stains on the wire core. f) The tensile strength of the wire and end after crimping should not be less than 60% of the tensile strength of the conductor itself. The load values of the crimping tension between different ends and wires are shown in the table. Terminal specifications and cross-sectional area of the wire that matches the terminal in mm2 tensile load value, NN pre insulated terminal bare end 0.5.50.560751.000.75.7590120

　　11001601.5.51.5.51402202.5.52.5.51903204.0.042755006.0.06360630g）针形端头、片形端头和管形端头长度，应根据所接入的端子情况，接触长度应与端子相一致或少长出压线螺钉；二个压线螺钉时（如电度表），其端头长度应保证二个螺钉均接触固定。（见图所示）?h）触针式端头j）通常不允许二根导线接入一个冷压接端头，因接线端子限制必须采用时，宜先采用二根导线压接的专用端头，否则宜选用大一级或大二级的冷压接端头。预绝缘端头与二根导线压接配合仍应符合要求，避免出现裸线芯露出绝缘管外的情况。（见图所示）k）一个接线端子接入二个冷压接端头时，应根据不同的端子接线形式，选择适合的冷压接端头。①螺钉串插式平板连接宜采用圆形和叉形端头（见图a所示）。允许两种不同的端头同时使用，且允许不同大小线径的冷压接端头接线，此时大线径在下面，小线径在上面。连接时两端头采用背靠背的形式，相叠或张开相互夹角不小于30?（见图b所示）。②螺钉串插式弧形板连接宜采用针形端头或管形端头，也可采用圆形端头。采用两个针形或管形端头时，线径或端头大小应相同（见图a所示）。③平板压接式连接宜采用片形端头。（见图b所示④弧形板压接式连接宜采用针形和管形端头。但线径或端头大小应相同。（见图c所示）7.7.对多芯导线线径剥头后，应在导线端部压上冷压接端头,具体做法是：用剥线钳剥去5～7mm长的塑料皮，并将号码管套上，打开冷压钳，将冷压钳端子标记向上，放入冷压钳相应的钳口处，把导线插入冷压端子内，然后进行压接，必需加压钳口完全闭合方可放开，并达到如下要求：1)压接冷压接端头时,线芯顶端应露出插套0.5～1mm，不带绝缘护套的压接端头，导线绝缘层与插套之间的过渡间隙应控制在0.5mm范围内。2)冷压钳锥口的中心应对准冷压接端头插套焊缝中心,压痕在无焊缝处。7.8.低压抽屉柜接线头一律采用冷压端子。7.9.同一电器单位应用同一种导线端头制作方法。7.10.冷压接端头的选用，应根据元器件上接线端头的型式不同而不同：当电接点两边没有挡板时必需选用TO型冷压如接地线桩头、电线与母排的连接处、CT、PT及大部分仪表上，样式见图：?7.11.冷压接端头的规格应根据导线的截面积或设计要求进行选用，具体见下表1:7.12.剥线的长度应按电器元件接线板上螺钉的直径来确定如表2所示:螺钉直径（mm）34568剥线长度（mm）1518212428

　　11001601.5.51.5.51402202.5.52.5.5519032040.0.042755006.0.06360630g) The length of needle shaped end, sheet shaped end, and tube shaped end should be consistent with the terminal or at least extend the crimping screw according to the condition of the connected terminal; When using two crimping screws (such as an electricity meter), the length of the end should ensure that both screws are in contact and fixed. (As shown in the picture)? h) Pin type terminals (j) usually do not allow two wires to be connected to one cold crimping terminal. When it is necessary to use terminals due to limitations, it is advisable to first use a dedicated terminal for crimping two wires. Otherwise, it is recommended to use a cold crimping terminal that is one or two levels larger. The pre insulated end should still meet the requirements for crimping with two wires to avoid the situation where the bare wire core is exposed outside the insulation tube. When one terminal is connected to two cold crimping terminals (as shown in the figure), the appropriate cold crimping terminal should be selected according to the different terminal connection forms. ① Screw string insertion flat plate connections should use circular and fork shaped ends (as shown in Figure a). Allow two different types of terminals to be used simultaneously, and allow cold crimping terminals of different sizes to be connected, with the larger wire diameter at the bottom and the smaller wire diameter at the top. When connecting, the two ends should be in a back-to-back form, with an angle of no less than 30 degrees between each other when overlapping or opening? (As shown in Figure b). ② The screw string insertion arc-shaped plate connection should use needle shaped or tube shaped ends, and circular ends can also be used. When using two needle or tube shaped ends, the wire diameter or end size should be the same (as shown in Figure a). ③ Flat press fit connections should use sheet shaped ends. (As shown in Figure b, it is recommended to use needle shaped and tube shaped ends for the arc-shaped plate crimping connection.). But the wire diameter or end size should be the same. 7.7. After stripping the diameter of the multi-core wire, a cold crimping end should be pressed onto the wire end. The specific method is to use wire stripping pliers to strip off the 5-7mm long plastic skin, and cover the number tube. Open the cold crimping pliers, mark the terminal of the cold crimping pliers upwards, place it in the corresponding clamp of the cold crimping pliers, insert the wire into the cold crimping terminal, and then perform crimping. It is necessary to apply pressure until the clamp is completely closed before releasing it, and meet the following requirements: 1) When crimping the cold crimping end, the top of the wire core should be exposed 0.5-1mm from the socket, and the crimping end without insulation sheath should have a transition gap between the wire insulation layer and the socket. It should be controlled within a range of 0.5mm. 2) The center of the cold press clamp cone should be aligned with the center of the cold press joint end socket weld, and the indentation should be made at the location without weld. 7.8. Cold pressed terminals shall be used for all wiring heads of low-voltage drawer cabinets. 7.9. The same electrical unit should use the same method for making wire ends. 7.10. The selection of cold crimping terminals should vary depending on the type of terminals on the components: when there are no baffles on both sides of the electrical contact, TO type cold crimping must be selected, such as grounding wire pile heads, wire and busbar connections, CT, PT, and most instruments. The style is shown in the figure:? 7.11. The specifications of cold crimping terminals should be selected according to the cross-sectional area of the wire or design requirements, as shown in Table 1: 7.12. The length of wire stripping should be determined according to the diameter of the screw on the electrical component wiring board, as shown in Table 2: screw diameter (mm) 34568 wire stripping length (mm) 1518212428

　　TUTO型冷压头规格尺寸7.13.元器件的接线方式有:a)直接接入法b)焊接型接法c)螺钉压接型接法 d)插接型接法⑴直接接入法:如电度表及抽屉式二次插件上用瓦型垫圈压接的接线方式，用瓦型垫圈压接接线线头制作应达到如下要求：1)用瓦型垫圈压接的导线，导线的线芯应露出瓦型垫圈0.5～1.0mm。2)接入一根导线时，导线应顺螺钉旋紧方向插入。3)两根接入瓦型垫圈接线端的导线，线径不相同时,其中线径细的单芯导线可将导线线芯弯曲180度后再插入，如下图,多芯导线须用冷压接头。⑵焊接型接线原则:1)焊接型接线端要求焊点光亮、牢固，不允许出现虚焊、漏焊。2)导线元器件上的焊接处在焊接前应其表面氧化层,并进行搪锡处理。3)焊接时可以用少量松香或少量中性助焊剂,不允许使用酸性助焊剂进行焊接。4)焊接完毕后，焊点应当用洒精棉擦试清洁。5)焊接时应注意保护导线的绝缘层不被烫伤，或产生明显的热收缩现象。⑶螺钉压接型接线：即用螺钉压接弯圆导线或压接TO TU型压接端头的多芯导线接线原则:1)被压接的弯圆型导线，导线的弯圆方向应与螺钉的旋紧方向相一致,方向不允许逆转。2)两根弯圆导线接入接线端时，弯圆导线之间必须垫入与螺钉相应的铜质平垫圈,并且导线规格不同时,应将截面积大的导线放在接线端底部。3)弯圆导线接入接线端时，导线的绝缘层不允许被平垫压住,两根TO、TU型压接端头的导线应“背对背”接入接线端。4)二次线接母排上时,必须在排上打孔，2.5mm2以下的导线用M5螺钉孔，4mm2以上的用M6螺钉连接，一个孔允许接2根线，该孔另一面不允许再接线。二次线不允许从母排相间穿过。5)一般电流电压互感器及部分仪表以及抽屉式断路器的次插件桩头大多无弹垫，上线后易松。⑷插接型接线在线芯上插接插针型冷压铜接端头后，用适当工具压接牢固,再插接在元器件相应的插接片上，插接后不得有松动现象。7.14.桩头上线的工艺要求⑴一般情况每个接线端点只允许连接一根导线接头多允许连接二根导线，并在导线压接端头的上下侧均应配有平垫圈，导线压接端头必须可靠推入且螺丝需拧紧不得有松动现象，对未接线的紧固件在完工时应逐个拧紧避免松动脱落，螺钉端头伸出螺母应符合露出(2～5牙)的标准。⑵连接元器件上的接线头必须弯成贺弧形，有利于检修，线也不易损伤。同一台同一类电器或同种方案的几台巨子元件接线后所弯成的圆弧大小和高度应统一。⑶凡是直流电流表须配有分流器时，其二次接线应直接连接，不得经过端子板，当线径为1.5平方时其长度不得超过3m。⑷连接到发热元件(如管形电阻，板形电阻，瓷盘电阻)上的导线，应从其侧方或下方引出，离发热元件30mm以上，当接入小于或等于15W管形电阻时应剥去导线绝缘层20mm左右长度，接入大于15W管形电阻时应剥去导线绝缘约40mm。然后套上耐热瓷珠，再进行连接，焊接处应牢固无虚焊、漏焊。⑸对于小于75W的管形电阻允许用螺杆串心后一头固定在骨架或支架上。对大于75W的管形电阻应用螺杆串心后二头固定后才能接线。对时间继电器上的附加电阻不能悬挂焊接，应固定在面板支件上。⑹导线接到电器元件接线端头时，导线不允许把元件上的接线端头遮住，应方便拆装。

　　The specifications and dimensions of the TUTO type cold press head are 7.13. The wiring methods for components include: a) direct connection method, b) welding connection method, c) screw compression connection method, d) plug-in connection method. (1) direct connection method: for example, the wiring method of crimping with a tile washer on an electricity meter and a drawer type secondary plug, the wire head made by crimping with a tile washer should meet the following requirements: 1) For wires crimped with a tile washer, the wire core of the wire should protrude 0.5-1.0mm from the tile washer. 2) When connecting a wire, the wire should be inserted in the direction of tightening the screw. 3) When two wires with different diameters are connected to the tile shaped gasket terminal, the single core wire with a thinner diameter can be bent 180 degrees and then inserted, as shown in the figure below. Multi core wires require cold pressed joints. ⑵ Welding type wiring principle: 1) Welding type wiring terminals require bright and firm welding points, and no virtual welding or leakage is allowed. 2) Before welding, the surface oxide layer of the solder joints on the wire components should be removed and treated with tin coating. 3) A small amount of rosin or neutral flux can be used during welding, and acidic flux is not allowed for welding. 4) After welding, the welding points should be wiped clean with a cotton swab. 5) During welding, attention should be paid to protecting the insulation layer of the wire from burns or significant thermal shrinkage. ⑶ Screw crimping type wiring: that is, using screws to crimp bent round wires or TO TU type crimping terminals for multi-core wire wiring principles: 1) The bending direction of the crimped bent round wire should be consistent with the tightening direction of the screw, and the direction should not be reversed. 2) When two bent round wires are connected to the terminal, copper flat washers corresponding to the screws must be inserted between the bent round wires, and when the wire specifications are different, the wire with a larger cross-sectional area should be placed at the bottom of the terminal. 3) When a bent round wire is connected to the terminal, the insulation layer of the wire is not allowed to be pressed down by a flat pad. The wires of the two TO and TU type crimping terminals should be connected back to back to the terminal. 4) When connecting the secondary wire to the busbar, holes must be drilled on the busbar. For wires with a diameter of less than 2.5mm2, M5 screw holes should be used, and for wires with a diameter of more than 4mm2, M6 screws should be used for connection. Two wires are allowed to be connected to one hole, but no further wiring is allowed on the other side of the hole. Secondary lines are not allowed to pass through the busbar alternately. 5) The secondary plug heads of general current and voltage transformers, some instruments, and drawer type circuit breakers mostly have no spring pads and are prone to loosening after being put online. ⑷ Plug in type wiring: After inserting the pin type cold pressed copper terminal on the wire core, use appropriate tools to press it firmly, and then plug it into the corresponding socket of the component. There should be no looseness after insertion. 7.14. Process requirements for the installation of pile heads (1) Generally, only one wire is allowed to be connected to each wiring endpoint, and a maximum of two wires are allowed to be connected to the joint. Flat washers should be provided on both the upper and lower sides of the wire crimping end. The wire crimping end must be reliably pushed in and the screws must be tightened without loosening. Unwired fasteners should be tightened one by one upon completion to avoid loosening and falling off. The protruding nut of the screw end should meet the standard of exposing (2-5 teeth). The connectors on the connected components must be bent into a curved shape, which is conducive to maintenance and the wires are not easily damaged. The size and height of the arc formed by connecting several giant components of the same type or scheme should be uniform. When a DC ammeter needs to be equipped with a shunt, the secondary wiring should be directly connected and not pass through the terminal board. When the wire diameter is 1.5 square meters, its length should not exceed 3 meters. The wire connected to the heating element (such as tube shaped resistor, plate shaped resistor, porcelain plate resistor) should be led out from its side or below, at least 30mm away from the heating element. When connecting a tube shaped resistor less than or equal to 15W, the insulation layer of the wire should be stripped off by about 20mm, and when connecting a tube shaped resistor greater than 15W, the insulation of the wire should be stripped off by about 40mm. Then, heat-resistant ceramic beads should be placed on it before connection, and the welding should be firm without virtual welding or leakage. ⑸ For tubular resistors less than 75W, it is allowed to fix one end of the screw after threading on the skeleton or bracket. For tubular resistors with a power greater than 75W, the screw should be threaded and fixed at both ends before wiring. The additional resistor on the time relay cannot be suspended and welded, but should be fixed on the panel support. When connecting the wire to the terminal of an electrical component, the wire should not cover the terminal of the component and should be easy to disassemble and assemble.

　　8、二次行线部分示例及符号牌形式8.1.端子排的配线心⑴导线接入端子前应做成圆弧形状4其圆弧半径不小于10mm，圆弧跨度长视标记套管长度而定。(见图a)⑵导线接入端子排前的分线:1)导线从上往下接入端子排。(见图b)(见图c)2)导线从下往上接入端子排。3)导线从端子排中间分别向上、下方向接入端子排。(见图c)4)插销式扎带捆扎方式导线接入端子排，分线前应捆扎，一次多分3根导线或分出接入3只端子排距离的导线。(见图e)5)卷式结束保护带包扎方式导线接入端子排，应按接入端子排的导线顺序，相对于接线端子位置，逐渐分出。(见图f)6)行线槽方式导线接入端子排，行线槽与端子排的安装距离应为40mm～60mm之间，导线相对于接线端子位置从行线槽出线孔逐渐分出;行线槽孔距应选择与端子板厚度相同，导线分出平直，高度一致。(见图d)8.2.电器元件端子的配线⑴导线接入端子前应做成圆弧形状，其圆弧半径不小于10mm，跨度长视标记套管长度而定。(见图a)⑵导线距离端子接线管端部的弯曲应符合规定要求，因装配限制接线端头必需弯曲时，只允许弯曲一次，且折弯角度不得大于45°。(见图b)⑶LA、AD11型按钮、信号灯配线见图c所示,⑷LW5型转换开关配线见图d所示，导线跨度不应大于120mm。⑸LW12型转换开关配线见图e所示，导线跨度不应大于120mm。⑹LW2型转换开关配线见图f所示，导线跨度不应大于150mm和90mm。⑺42L6仪表配线见图g所示，导线弯曲跨度不应超过仪表边缘。⑻6L2仪表配线见图h所示，导线超出仪表上部边缘不大于6mm，左右与边缘平齐。?⑼继电器的配线见图i所示。⑽电器接线端子位于并突出于电器中间段的配线见图所示，导线与电器面的角度不大于30°。⑾仪表门的配线(见图k所示)各电器元件配线方向应从导线束敷设相反的方向弯绕各电器元件的安装应端正，导线敷设应尽量采用集中线束的方法。8.3.其他⑴二次电源线接线:──采用专用接线端头，二次电源线用冷压扁平快速端头与之连接。(见图I)──在母排上开4的孔或直接攻丝，采用M4螺钉连接。──导线长度应留有适当的裕量，并将其卷成螺旋形状螺旋形内径约8mm～10mm，绕3～5圈。(见图m)8.4.保护接地⑴标志和识别a)保护接地端子应采用颜色标志(黄-绿双色的标志)b)文字符号采用PE识别。图形符号见图n、图O优先选用图O⑵接地保护的范围a)所有作为隔离带电导体的金属隔板均应有效地接地。石形笑设备的框架、仪用变压器的金属外壳、开关电器、仪继电器的金属外壳以及金属手动操作机构均应有效接c) 对于门、盖板、覆板和类似部件，如果其上没有安装电气设备则一般金属螺钉连接或镀锌的金属绞链连接就认为保证了电的连续性:如果其上装有额定电压值超过42V的电气设备时，应采用保护导体将这些部件和保护电路连接。8.5.二次行线部分示例及符号牌形式⑴分路部分接入单排仪表的线束布置示例:⑵分路部分到双排仪表的线束，可用中间分线的布置⑶分路部分到按钮，熔断器，控制开关等部件的线束布置原则上按横向对称行走，如果受到位置上的限制，允许紧问对称行走，所有接线应有一定抛度，其抛度高为20mm左右。信号灯或按钮双排及双排以上布置接线⑷分路部分到继电器的线束，一律按水平居中向两侧分开的方向行走。到继电器接线端的每根线应略带圆弧状连接般圆弧如图，力求同面板上的各种继电保护回路圆弧──?⑸符号牌形式及编写方法见下附图，符号牌横线上方编写元件安装序号如:1、1;横线下方编写元件符号。接线图上有设计标志时按图纸要求编号。

　　8. Example and symbol plate form of secondary wiring section 8.1. Wiring center of terminal block (1) The wire should be made into a circular arc shape before being connected to the terminal. The radius of the circular arc should not be less than 10mm, and the span length of the circular arc depends on the length of the marked sleeve. (See Figure a) ⑵ Wire distribution before connecting to the terminal block: 1) The wire is connected to the terminal block from top to bottom. (See Figure b) (See Figure c) 2) Connect the wire from bottom to top into the terminal block. 3) The wires are connected to the terminal block in both upward and downward directions from the middle of the terminal block. (See Figure c) 4) Pin type zip tie binding method: When connecting wires to terminal blocks, they should be tied before splitting. A maximum of 3 wires can be split at a time or wires that are separated and connected to a distance of 3 terminal blocks can be added. (See Figure e) 5) The wrapping method of the rolled end protective tape should gradually separate the wires connected to the terminal block in the order of the wires connected to the terminal block, relative to the position of the terminal block. (See Figure f) 6) The wire is connected to the terminal block through the wire slot method, and the installation distance between the wire slot and the terminal block should be between 40mm and 60mm. The wire gradually branches out from the wire slot outlet hole relative to the wiring terminal position; The distance between the wire slot holes should be selected to be the same as the thickness of the terminal board, with straight wire branches and consistent height. (See Figure d) 8.2. Wiring of Electrical Component Terminals (1) Before connecting the wire to the terminal, it should be made into a circular arc shape with a radius of not less than 10mm, and the span length depends on the length of the marked sleeve. (See Figure a) ⑵ The bending of the wire from the end of the terminal conduit should meet the specified requirements. Due to assembly limitations, when the terminal must be bent, only one bending is allowed, and the bending angle should not exceed 45 °. (See Figure b) ⑶ The wiring of LA and AD11 buttons and signal lights is shown in Figure c, (4) The wiring of LW5 type conversion switch is shown in Figure d, and the wire span should not exceed 120mm. (5) The wiring of LW12 type conversion switch is shown in Figure e, and the wire span should not exceed 120mm. (6) The wiring of LW2 type conversion switch is shown in Figure f, and the wire span should not exceed 150mm and 90mm. (7) The wiring of 42L6 instrument is shown in Figure g, and the wire bending span should not exceed the edge of the instrument. The wiring of the 6L2 instrument is shown in Figure h. The wire should extend no more than 6mm beyond the upper edge of the instrument and be level with the edge on both sides.? The wiring of the relay is shown in Figure i. The wiring of the electrical wiring terminal located in and protruding from the middle section of the electrical appliance is shown in the diagram, and the angle between the wire and the electrical surface is not greater than 30 °. The wiring direction of each electrical component in the instrument door (as shown in Figure k) should be bent in the opposite direction of the wire harness. The installation of each electrical component should be upright, and the wire harness should be laid in a centralized manner as much as possible. 8.3. Other (1) Secondary power cord wiring: - Use dedicated wiring terminals, and connect the secondary power cord to it with cold pressed flat quick connectors. (See Figure I) - Drill 4 holes or directly tap on the busbar, and use M4 screws for connection. The length of the wire should have an appropriate margin, and it should be coiled into a spiral shape with an inner diameter of about 8mm to 10mm, and wound 3 to 5 times. (See Figure m) 8.4. Protective Grounding ⑴ Marking and Identification a) Protective grounding terminals should use color markings (yellow green dual color markings) b) Text symbols should be identified by PE. The graphic symbols are shown in Figure n and Figure O, and Figure O (2) is preferred for the range of grounding protection. (a) All metal partitions used as isolated live conductors should be effectively grounded. The frame of the Shixingxiao equipment, the metal casing of the instrument transformer, the metal casing of the switchgear, the metal casing of the instrument relay, and the metal manual operating mechanism should all be effectively connected. c) For doors, cover plates, cladding, and similar components, if no electrical equipment is installed on them, metal screw connections or galvanized metal hinge connections are generally considered to ensure electrical continuity. If electrical equipment with a rated voltage exceeding 42V is installed on them, protective conductors should be used to connect these components to the protective circuit. 8.5. Examples of Secondary Wiring Parts and Symbol Plate Forms: (1) Wiring Harness Layout Example for Branch Connection to Single Row Instruments: (2) Wiring Harness from Branch Connection to Double Row Instruments can be arranged with a middle branch line. (3) Wiring Harness Layout from Branch Connection to Buttons, Fuses, Control Switches, and Other Components should be arranged symmetrically in the horizontal direction. If restricted by position, it is allowed to walk symmetrically. All wiring should have a certain degree of throw, with a throw height of about 20mm. The wiring of signal lights or buttons should be arranged in double rows or more. The wiring harness from the branching part to the relay should be horizontally centered and move in a direction separated from both sides. Each wire to the relay terminal should have a slightly curved connection as shown in the diagram, striving to match the various relay protection circuit arcs on the panel? The form and writing method of the symbol board are shown in the attached figure. The component installation number is written above the horizontal line of the symbol board, such as: 1, 1; Write component symbols below the horizontal line. When there are design symbols on the wiring diagram, they should be numbered according to the requirements of the drawing.

　　9、检验规则⑴接线完工后一定要打扫柜内与周围的杂物，进行自检。⑵接线头螺钉有无松动现象，如有松动，即加以紧固。⑶所行线路要平、直、齐、牢。⑷所有元件不接线的端子，都需配齐螺钉、螺母、垫圈等并要求紧固。⑸按技术要求的各项规定，进行元件规格的外观检查,并符合图纸要求。⑹核对导线选用规格是否正确，导线绝缘层及导体有无损伤。⑺检查扎线质量、弯曲半径是否符合要求，方向是否正确。⑻检查此次回路的电气间隙、爬电距离、距离是否符合规定要求。⑼按原理接线图及施工接线图，检查导线连接是否正确。⑽按有关技术条件和标准，进行出厂检试。1、工艺流程准备相关图纸、规范书(领料单)及工艺文件→领取所需的电器元件及各种规格导线和辅助材料→熟悉图纸并核对元器件的位置和规格→标识元器件的符号牌-构思线束的走向及几个关键的分支及交汇点的处理方法→下线配线→接线→整理线束→质量自检和清理机柜→报检

　　9. Inspection rule ⑴ After the wiring is completed, it is necessary to clean the cabinet and surrounding debris for self inspection. Check for any looseness in the wiring head screws. If there is any looseness, tighten them. The route should be flat, straight, even, and secure. All components without wiring terminals must be equipped with screws, nuts, washers, etc. and tightened. According to the technical requirements, conduct a visual inspection of the component specifications and ensure compliance with the drawing requirements. ⑹ Check whether the specifications of the selected wires are correct, and whether the insulation layer and conductor of the wires are damaged. Check the quality of the cable tie, whether the bending radius meets the requirements, and whether the direction is correct. Check whether the electrical clearance, creepage distance, and safety distance of this circuit meet the specified requirements. According to the principle wiring diagram and construction wiring diagram, check whether the wire connections are correct. Conduct factory inspection according to relevant technical conditions and standards. 1. Preparation of relevant drawings, specifications (material requisition) and process documents for the process flow → Collection of required electrical components, various specifications of wires and auxiliary materials → Familiarity with the drawings and verification of the position and specifications of the components → Identification of symbol plates for the components - Concept of the direction of the wiring harness and the handling methods for several key branches and intersections → Offline wiring → Wiring → Sorting of wiring harnesses → Quality self inspection and cleaning of the cabinet → Inspection report

　　2、技术要求2.1.严格依照二次图纸要求、按工艺文件要求、按技术标准要求制做，接线要准确，途径要简捷，布局合理、横平竖直、美观大方、牢固清晰。2.2.选用的二次导线应采用电压不低于500V铜芯塑料绝缘导线（BV、BVR）其截面要求电流回路采用2.5mm2,电压回路采用1.5mm2,其颜色一般为黑色，接地采用黄绿双色导线，截面不小于2.5mm2，电子器件小电流、低电平允许采用小于1.5mm2，但不得小于0.75mm2。计量回路当电力和设计部门有特殊要求时，电流回路为4mm2、电压回路为2.5mm2、零线为2.5mm2，且颜色分别为：A相黄色、B相绿色、C相红色，零线为蓝色配置。2.3.二次回路的线束布置一定要有规律，原则上应以活动门铰链侧由上而下，布置做到合理、牢固、，分流的线束应做到横平竖直、层次分明、整齐美观，除必要弯曲（如转换方向）外，不能有弯斜、扭曲的现象。捆扎方式要规范、牢固可靠、均匀。2.4.所有的门应有可靠牢固的接地装置（接地柱），应与柜体柜架构成一个良好、接地体系。装置采用螺栓不能小于6mm，且接地点上应平整、光滑、无漆渍、无锈痕,连接的导线不能小于2.5mm2(建议采用不小于4mm2裸铜软线)的黄绿双色软线。2.5.二次回路的线束不准在导电部件敷设,高压柜线束与导电部位的净距离3kV不小于75mm，6kV不小于100mm，10kV不小于125mm，35kV不小于300mm。导线线部裸露部位之间及裸露部位与金属框架的电气间隙应不小于4mm，爬电距离应不小于6mm2.6.电器元件上接点一般只连接一根导线，必要时允许连接二根，其工艺要求应符合以下要求，所有接点与导线连接时应有防松措施，拧紧后应有2～5扣螺纹，所有的紧固件(螺丝、垫圈、螺母)均应为镀锌件。导线中间不允许有接头。2.7.电流回路的连接应通过端子连接，且端子应为试验型接触良好的端子，同时电流回路应有可靠的接地，方式应符合相关要求。所有端子间的连接应采用专用连接片连接。2.8.为了保证接点的可靠，所有导线（除单根导线需做羊眼圈外）应有冷压接头（冷压线鼻）,冷压接点选用的规格与制作应符合其工艺要求。a)预绝缘端头与导线的冷压接后尺寸见图a。b)管形预绝缘端头与导线的冷压后尺寸见图b。c)裸端头与导线的冷压接后尺寸见图c。d)触针式端头与导线冷压接后的尺寸见图d。2.9.为了严肃二次图纸与实物的一致性,便于有关部门验证及维护的方便,所有导线端头与元器件应有明显正确的标志，即导线的标记套、元器件符号牌。导线标记套的规格应与导线线径匹配,接线后的方向应与图纸一致,元器件的符号牌粘贴位置应醒目、正确、美观，便于观看与核对。

　　2. Technical requirement 2.1. Strictly follow the requirements of the secondary drawings, process documents, and technical standards for manufacturing. The wiring should be accurate, the route should be simple, the layout should be reasonable, horizontal and vertical, beautiful and elegant, and firm and clear. 2.2. The selected secondary wire should be a copper core plastic insulated wire (BV, BVR) with a voltage of not less than 500V. The cross-sectional area of the current circuit should be 2.5mm2, and the voltage circuit should be 1.5mm2, generally black in color. The safety grounding should use a yellow green dual color wire with a cross-sectional area of not less than 2.5mm2. For small current and low level electronic devices, it is allowed to use a cross-sectional area of less than 1.5mm2, but not less than 0.75mm2. When there are special requirements from the power and design departments for the metering circuit, the current circuit is 4mm2, the voltage circuit is 2.5mm2, and the neutral wire is 2.5mm2, and the colors are: yellow for phase A, green for phase B, red for phase C, and blue for the neutral wire configuration. 2.3. The wiring harness layout of the secondary circuit must be regular. In principle, it should be arranged from top to bottom on the hinge side of the movable door, and the layout should be reasonable, firm, and safe. The diverted wiring harness should be horizontal and vertical, with clear layers, neat and beautiful. Except for necessary bending (such as changing direction), there should be no tilting or twisting phenomenon. The bundling method should be standardized, firm, reliable, and even. 2.4. All doors should have reliable and secure grounding devices (grounding columns), which should form a good and safe grounding system with the cabinet frame. The device should use bolts with a diameter of no less than 6mm, and the grounding point should be flat, smooth, without paint stains or rust marks. The connected wires should not be less than 2.5mm2 (it is recommended to use bare copper flexible wires with a diameter of no less than 4mm2) with yellow green dual color flexible wires. 2.5. The wiring harness of the secondary circuit is not allowed to be laid on conductive parts. The net distance between the high-voltage cabinet wiring harness and conductive parts should be no less than 75mm for 3kV, no less than 100mm for 6kV, no less than 125mm for 10kV, and no less than 300mm for 35kV. The electrical gap between the exposed parts of the wire and the metal frame should not be less than 4mm, and the creepage distance should not be less than 6mm2.6. Generally, only one wire is connected to the contact on the electrical component, and if necessary, two wires are allowed to be connected. The process requirements should meet the following requirements. All contacts should have anti loosening measures when connected to the wire, and after tightening, there should be 2-5 threads. All fasteners (screws, washers, nuts) should be galvanized. No joints are allowed in the middle of the wire. 2.7. The connection of the current circuit should be made through terminals, and the terminals should be of the test type with good contact. At the same time, the current circuit should have a reliable grounding method that meets relevant requirements. All connections between terminals should be made using dedicated connectors. 2.8. In order to ensure the safety and reliability of the contacts, all wires (except for single wires that require sheep eye circles) should have cold pressed joints (cold pressed wire noses), and the specifications and production of cold pressed contacts should meet their process requirements. a) The dimensions of the pre insulated end and the wire after cold crimping are shown in Figure a. b) The dimensions of the tubular pre insulated end and the wire after cold crimping are shown in Figure b. c) The dimensions of the bare end and the wire after cold crimping are shown in Figure c. d) The dimensions of the contact pin end and the wire after cold crimping are shown in Figure d. 2.9. In order to ensure the consistency between the secondary drawing paper and the actual product, and for the convenience of verification and maintenance by relevant departments, all wire ends and components should have clear and correct markings, namely wire marking sleeves and component symbol plates. The specifications of the wire marking sleeve should match the wire diameter, and the direction after wiring should be consistent with the drawing. The symbol plate of the component should be pasted in a prominent, correct, and beautiful position for easy viewing and verification.

　　3、配线的准备工作3.1.领取图纸，技术规范资料（规范书）,并将其消化和策划。3.2.按图纸领取元器件及各种规格导线和辅助材料。3.3.准备好必需的辅助材料如梅花螺丝刀，吸盘，压线钳，钢板尺，BVR铜线，扎带，冷压端头，斜口等。4.4.然后按照盘面布置图安装元器件如指示灯和转换开关等，并且在各个元器件下粘贴标签（标签长度为15mm,字体为4:3)标签应贴在同一条直线上如图所示。3.5.然后用工具(工具的宽度为13mm)画线如图A所示,对于单排贴吸盘的指示灯粘贴吸盘时距离应大于工具的宽度大约20-22mm。3.6.确定所画线平直后进行粘贴吸盘如图B3.7.根据导线规格选择号码套管，并按图纸及配线的先后次序打印标记套(回路标号)，标记套(回路标号)应清楚、牢固、完整不脱色，编写元件符号牌要求字迹清晰端正，不得涂改、不褪色。3.8.按图纸与规范书的要求领取并核对元器件型号规格和安装位置。3.9.所有接入电器元件的导线端头均应套入号码管（标记套）,除电器元件本身连线外,号码管套入导线后的阅示方向原则：站在产品正前方水平方向从左到右的读入方向；垂直方向从下到上的读入方向；若为屏后走线时，站在屏后观看与屏前相同，号码管原则上应先套入回路号，然后套入对标记套，导线两端头的标记套应与二次图相符，方向一律按下图所示方向：

　　3. Preparation work for wiring 3.1. Obtain drawings, technical specification documents (specification books), and digest and plan them. 3.2. Obtain components, various specifications of wires, and auxiliary materials according to the drawings. 3.3. Prepare necessary auxiliary materials such as a Phillips screwdriver, suction cup, crimping tool, steel ruler, BVR copper wire, zip ties, cold pressed end caps, slanted mouth, etc. 4.4. Then install components such as indicator lights and conversion switches according to the panel layout diagram, and paste labels (label length of 15mm, font of 4:3) under each component. The labels should be pasted on the same straight line as shown in the figure. 3.5. Then use a tool (with a width of 13mm) to draw a line as shown in Figure A. For the indicator light with a single row of suction cups, the distance between the suction cups should be about 20-22mm greater than the width of the tool. 3.6. After confirming that the drawn line is straight, paste the suction cups as shown in Figure B3.7. Select the number sleeve according to the wire specifications, and print the marking sleeve (circuit number) in the order of the drawing and wiring. The marking sleeve (circuit number) should be clear, firm, and complete without fading. The writing of the component symbol plate requires clear and upright handwriting, and should not be altered or faded. 3.8. Obtain and verify the component model, specifications, and installation position according to the requirements of the drawings and specifications. 3.9. All wire ends connected to electrical components should be inserted into a marking sleeve. Except for the wiring of the electrical components themselves, the reading direction of the marking sleeve after inserting the wire should follow the principle of standing in front of the product in a horizontal direction from left to right; Vertical reading direction from bottom to top; If the wiring is done from behind the screen, standing behind the screen to view it is the same as in front of the screen, the number tube should be inserted with the circuit number first, and then with the corresponding marking sleeve. The marking sleeves at both ends of the wire should match the secondary diagram, and the direction should be consistent with the direction shown in the following figure:

　　4、下线工艺要求4.1.下线前应根据装置的结构形式,元器件的安装位置完整地构思确定线束的走向，有几个分支及交汇点以及固定、包扎的方式,然后按导线行的途径大致量出导线的长度，同时应考虑每一个接点接成弧形圈所需的长度,放50～100mm的余量后剪下所需导线,两端再套上标记套(号码管)。4.2.用于二次回路的导线一般采用单芯硬线(BV)，在经常受弯曲处如插头、过门线均采用多股塑料绝缘软线（BVR）。4.3.抽屉式成套开关设备应采用铜质多股塑料绝缘软线（BVR）。4.4.过门线下线长度应能使门打开到极限位置而不受拉力影响。4.5.插件及抽屉内凡采用软联接的插头座下线长度应保证插头能有充分插拔余量如图。4.6.装有电子元件的控制装置二次线应考虑到远离一次回路，以防干扰。4.7.用于二次回路的导线颜色及线径：设备内部敷设一般用黑色，接地用黄绿双色线，接地线不得小于2.5mm2，计量回路除电力和设计部门有要求时,电流回路一律用4mm2,且用黄(A相)、绿(B相)、红(C相)、淡兰(N) 色线，电压回路一律用2.5mm2，颜色同上。常规的电流回路用2.5mm2导线, 控制保护回路为1.5mm2，连接电子器件的小电流低电平电路允许采用小于1.5mm2的导线,但不得小于0.75mm2(采用1mm2如微机上)。4.8.二次线的敷设应考虑到不得占用一次施工路径及供用户引进引出电缆的空间位置，并注意留出适当的空位以保证与裸母线之间有足够的距离,并要注意避开元件的喷弧范围。

　　4. Offline process requirements 4.1. Before going offline, the direction of the wire harness should be fully conceptualized and determined based on the structural form of the device, the installation position of the components, and the number of branches and intersections, as well as the methods of fixing and wrapping. Then, the length of the wire should be roughly measured according to the path of the wire row. At the same time, the length required for each contact to form an arc-shaped circle should be considered. After placing a margin of 50-100mm, the required wire should be cut off, and marking sleeves (number tubes) should be placed on both ends. 4.2. Wires used for secondary circuits generally use single core hard wires (BV), and multi stranded plastic insulated flexible wires (BVR) are used in frequently bent areas such as plugs and door wires. 4.3. Drawer type switchgear should use copper multi strand plastic insulated flexible wire (BVR). 4.4. The length of the wire passing through the door should be able to open the door to its maximum position without being affected by tension. 4.5. For plugs and drawers that use soft connections, the offline length of the plug socket should ensure that the plug has sufficient insertion and extraction allowance, as shown in the figure. 4.6. The secondary wires of control devices equipped with electronic components should be kept away from the primary circuit to prevent interference. 4.7. Color and diameter of wires used for secondary circuits: Black wires are generally used for internal installation of equipment, and yellow green dual color wires are used for safety grounding. The grounding wire should not be less than 2.5mm2. For metering circuits, except for those required by the power and design departments, 4mm2 wires should be used for current circuits, and yellow (A-phase), green (B-phase), red (C-phase), and light blue (N) wires should be used. 2.5mm2 wires should be used for voltage circuits, with the same color as above. Conventional current circuits use 2.5mm2 wires, while control and protection circuits use 1.5mm2 wires. Small current low-level circuits connected to electronic devices are allowed to use wires smaller than 1.5mm2, but not less than 0.75mm2 (1mm2 is recommended for microcomputers). 4.8. The laying of secondary lines should take into account not occupying the primary construction path and the space for users to introduce and exit cables, and pay attention to leaving appropriate space to ensure sufficient safety distance between the bare busbar, and avoid the arc spraying range of components.

　　5、端子安装与固定5.1.开关柜内端子应集中安装成排，按端子的数量可排成单排或多排端子，位置垂直从上到下,柜顶从后到前,水平从左到右(正视)；接线应与二次图纸一致性。5.2.端子排安装位置：高压柜应装于仪表室内，低压柜一般型应装于门链侧垂直安装；抽出式低压柜进线、母联柜应于铰链侧垂直安装，特殊情况（无法垂直安装）允许在主开关上侧合适位水平安装，但应注意飞狐距离及导电部位距离。5.3.端子装配时，始末两端必须装以挡板，不同安装单元的端子排也应在始末端安装挡板。端子排上逢5遇10应写明其顺序号。

　　5. Terminal installation and fixation 5.1. The terminals inside the switchgear should be centrally installed in rows, which can be arranged in single or multiple rows according to the number of terminals. The positions should be vertical from top to bottom, cabinet top from back to front, and horizontal from left to right (front view); The wiring should be consistent with the secondary drawing. 5.2. Terminal block installation position: The high-voltage cabinet should be installed in the instrument room, and the low-voltage cabinet should generally be installed vertically on the door chain side; The incoming line of the pull-out low-voltage cabinet and the busbar cabinet should be installed vertically on the hinge side. In special circumstances (where vertical installation is not possible), it is allowed to be installed horizontally in a suitable position on the upper side of the main switch, but attention should be paid to the flying fox distance and the distance between conductive parts. 5.3. During terminal assembly, baffles must be installed at both ends, and baffles should also be installed at the beginning and end of terminal blocks for different installation units. The sequence number should be clearly indicated for every 5 and 10 on the terminal block.

　　6、行线、接线工艺要求6.1.行线方式有完全行线槽行线，行线槽与成束捆扎混合行线及成束线捆扎行线等型式，采用行线槽行线方式。6.2.行线时自上而下地将线束理成塔形或多边形（线束太大时也可理成圆形)，然后分路，并将上下笔直的线路放在外档(往往是主干线的长线束放外层)，将中途要折弯的线路顺序放入内档，尽量避免线间和层间交叉，特别是必须理直，这样线束从始终被整齐的盖住易于美观，接线头从线束下或中经背面绕过线束成弧形接入配件接线桩，线头拉出的根部必须捆扎。如下图：6.3.二次回路的导线线束敷设过程中需要弯曲转换方向时，用手指进行弯曲后再直或横行走，不得使用夹咀或其它锋利工具弯曲，以保证导线绝缘层不受损伤。当线束过大确实需要借助工具弯曲时，应选用不带棱形钳齿的工具进行。6.4.线束分支处原则上应遵从小线束服从大线束的原则，即一般情况不改变主线束的走线路径，小线束通过横或竖折弯方式从大线束中分出，线束折弯处两边就近必须捆扎。线束在行线过程不允许出现有斜拉现象，除过门线及部分要跨越障碍的场合外一律采用或竖或横的两种行线方式。且所有扎线处不得有凹凸不直或有歪斜现象。如下图：?6.5.用行线槽行线时行线槽应敷设在柜(箱)的两侧或底部，若是元件布置排列明显和线束较多时也可在中间敷设，装于引出线的下面，行线槽的安装部位一般以垂直和水平为主。6.6.行线槽的安装应采用尼龙铆钉或其它绝缘件进行紧固，行线槽出线口不允许有毛刺。6.7.当用缠绕管捆扎时，对固定的线束选用的缠绕管其内径是线束的二分之一左右，活动的线束选用的缠绕管其内径接近线束的外径。6.8.缠绕在线束上的缠绕管其间距约为缠绕管本身的宽度。6.9.对1.5mm2及其以下的导线线束，应采用全长包扎，对2.5mm2及其以上的导线线束，可采用分段包扎，包扎时每隔100～150mm左右均匀地扎一段，每段约5圈。6.11.捆扎带的抽紧程度以线束被捆线基本抽紧为准，不能损伤导线的绝缘层，抽紧捆线后留2mm左右，多余的用斜口钳剪去。6.12.捆扎好的线束应逐段立即填入扁形线夹，拉直结束拧紧线夹，边扎边固定直全部结束，线夹夹持部的线束应先用塑料胶带包扎妥善后方可填入线夹固扎线间距应尽量统一，线夹固定后的线束应无晃动现象。6.13.线束多不得超过24根，每层多不得超过6根，如实际需要较多根数时，尽可能采用行线槽方法，为保证线束美观整齐，应在各层线间垫上硬质卡纸或硬质塑料薄片，卡片宽度根据每层线列实际宽度确定，以不露线束两侧导线为界，该位置应有扎线捆扎牢固，线束粗细可按实际导线根数确定，一般为单层二根，双层四根六根，三层九根十二根，四层二十二十四根。见图B：6.14.二次回路的导线线束不准在导电部件和元器件本身上固定和敷设(框架式断路器除外），也不许直接敷设在金属铁板上，必须腾空3～5mm或导线包以塑料绝缘带，采用支承样板铁条敷设线束时，样板铁条必须包以塑料绝缘带。6.15.在经过包扎的样板铁上敷设线束的包扎应按如下：a)先用塑料布一端插入线束中间加以抽紧。b)将导线整齐排列成多边形或塔形。c)然后包扎2～5层，包扎后用捆扎带抽紧，且捆扎带尾朝上，等全部完工后，齐根剪去带尾。7.16.不在样板铁上敷设线束的包扎，将导线理顺整齐排列成近似于圆形的线束，用捆扎带包扎，线束中间的扎线处要均匀，其横向扎线间距不得大于150mm，纵向间距不得大于200mm，扎线处要求扎紧，用手滑动,不得松动。6.17.线束在柜内敷设时线束与金属柜体之间应用绝缘线夹进行固定。线夹间距水平方向不大于300mm，垂直方向不大于400mm，离线束转角处30mm左右，必须配有绝缘线夹将其固定。6.18.对角钢结构的箱柜应采用支件在适当位置紧固,并安装线夹，对需在安装板，面板上固定线束的，应在适当位置设绝缘线夹进行紧固。6.19.导线与线束需要穿过金属板时，必须在金属板的穿孔处加装橡胶圈或齿形带。交流回路的导线在穿过钢制金属隔板时，该回路所有相线（包括中性线）均应从同一孔中穿过。6.20.绝缘导线不允许贴近具有不同电位的裸露的带电部位。线束与带电体之间的距离不小于15mm。6.21.过门的线束两端要用线夹压紧,过门线应套波纹管呈“U”形或“S”形。线束的长度应保证门及导电物件开启关闭时线束不得叠死，在开启及关闭过程中不应擦门框，同时应确保门开启≥120°。6.22.二次回路的导线线端裸露部位之间及导线线端裸露部位与金属骨架的电气间隙不应小于4mm，爬电距离不小于6mm。6.23.行线时不允许损伤柜体表面涂层，安装和接线过程中不能损坏电器元件。6.24.行线过程中，不允许使任何异物落入元器件内，特别是有触点的元器件的触点间隙内或磁性元器件的线圈间隙内以及断路器和刀开关的灭弧室内，以免引起配件卡死或短路。

　　6. 6.1 Requirements for Wiring and Wiring Process 6.1. Wiring methods include fully slotted wiring, mixed wiring with bundled wiring, and bundled wiring. It is recommended to use slotted wiring. 6.2. When wiring, the wire harness should be arranged in a tower or polygon shape from top to bottom (circular shape can also be used if the harness is too large), and then divided. The straight lines should be placed on the outer shelf (usually the longest line of the main line should be placed on the outer shelf), and the lines that need to be bent in the middle should be placed on the inner shelf in order to avoid crossing between lines and layers as much as possible. Especially, the top layer must be straightened so that the harness is covered by a neat top layer from beginning to end, making it easy to look beautiful. The wiring head should be bent around the harness from the bottom or middle to the back and connected to the accessory wiring post. The root of the wire head pulled out must be tied. As shown in the following figure: 6.3. When the wiring harness of the secondary circuit needs to be bent and changed direction during the laying process, it should be bent with fingers before walking straight or horizontally. Clamps or other sharp tools should not be used to bend, to ensure that the insulation layer of the wire is not damaged. When the wire harness is too large and needs to be bent with the help of tools, tools without angular pliers should be used. 6.4. In principle, the branching of the wire harness should follow the principle of small wire harnesses obeying large wire harnesses, that is, in general, the routing path of the main wire harness should not be changed. The small wire harness should be separated from the large wire harness by horizontal or vertical bending, and the two sides of the wire harness bending must be tied nearby. During the wiring process, it is not allowed to have any diagonal pulling phenomenon. Except for the door line and some situations where obstacles need to be crossed, both vertical and horizontal wiring methods must be used. And all cable ties must not have any unevenness or skewness. As shown in the figure below:? 6.5. When using cable trays for wiring, the cable trays should be laid on both sides or at the bottom of the cabinet (box). If the components are arranged clearly and there are many wiring harnesses, they can also be laid in the middle and installed under the lead out wires. The installation position of the cable trays is generally vertical and horizontal. 6.6. The installation of cable trunking should be fastened with nylon rivets or other insulating components, and the outlet of the cable trunking should not have burrs. 6.7. When bundling with a winding tube, the inner diameter of the winding tube selected for the fixed wire harness is about half of the wire harness, and the inner diameter of the winding tube selected for the movable wire harness is close to the outer diameter of the wire harness. 6.8. The spacing between the winding tubes wound on the wire harness is approximately the width of the winding tubes themselves. 6.9. For wire harnesses of 1.5mm2 and below, full length wrapping should be used. For wire harnesses of 2.5mm2 and above, segmented wrapping can be used. When wrapping, a section should be evenly tied every 100-150mm, with about 5 turns per section. 6.11. The tightness of the binding tape should be based on the basic tightness of the wire harness being tied, and the insulation layer of the wire should not be damaged. After tightening the tied wire, leave about 2mm, and cut off the excess with diagonal pliers. 6.12. The bundled wire harness should be immediately filled into the flat wire clamp section by section. After straightening, tighten the wire clamp and fix it while tying until it is completely finished. The wire harness at the clamping part of the wire clamp should be wrapped properly with plastic tape before being filled in. The spacing between the wire clamps should be as uniform as possible, and the wire harness fixed by the wire clamp should be free of shaking. 6.13. The maximum number of wire harnesses shall not exceed 24, and the maximum number of wires per layer shall not exceed 6. If a large number of wires are actually required, the method of using cable trays shall be used as much as possible. To ensure the beauty and neatness of the wire harness, hard cardboard or hard plastic sheets shall be placed between each layer of wires. The width of the card shall be determined according to the actual width of each layer of wire columns, with the wires on both sides of the wire harness not exposed as the boundary. The position shall be firmly tied with zip ties. The thickness of the wire harness can be determined according to the actual number of wires, generally two in a single layer, four to six in a double layer, nine to twelve in a three layer, and twenty to twenty-four in a four. Refer to Figure B: 6.14. The wiring harness of the secondary circuit is not allowed to be fixed or laid on conductive parts and components themselves (except for frame type circuit breakers), nor is it allowed to be directly laid on metal plates. It must be empty by 3-5mm or wrapped with plastic insulation tape. When laying the wiring harness with supporting sample iron bars, the sample iron bars must be wrapped with plastic insulation tape. 6.15. The wiring harness should be wrapped on the wrapped sample iron as follows: a) First, insert one end of plastic cloth into the middle of the wiring harness and tighten it. b) Arrange the wires neatly into a polygon or tower shape. c) Then wrap it in 2-5 layers, tighten it with a tie tape, and keep the end of the tie tape facing upwards. After all is completed, cut off the ends of the tie tape completely. 7.16. Do not wrap the wire harness on the sample iron, arrange the wires neatly into a circular harness, wrap them with bundling tape, and ensure that the middle of the harness is evenly tied. The horizontal spacing between the ties should not exceed 150mm, and the vertical spacing should not exceed 200mm. The ties should be tightly tied, slid by hand, and not loose. 6.17. When the wiring harness is laid inside the cabinet, insulated wire clamps should be used to fix it between the wiring harness and the metal cabinet body. The spacing between wire clamps should not exceed 300mm in the horizontal direction and 400mm in the vertical direction, and around 30mm at the corner of the wire harness. Insulated wire clamps must be provided to fix it. 6.18. Boxes and cabinets with diagonal steel structures should be fastened at appropriate positions using supports and equipped with wire clamps. For those that require fixing wire harnesses on installation plates or panels, insulated wire clamps should be installed at appropriate positions for fastening. 6.19. When wires and harnesses need to pass through metal plates, rubber rings or toothed belts must be installed at the perforations of the metal plates. When the wires of the AC circuit pass through the steel metal partition, all phase wires (including neutral wires) of the circuit should pass through the same hole. 6.20. Insulated wires are not allowed to be close to exposed live parts with different potentials. The distance between the wire harness and the charged body shall not be less than 15mm. 6.21. The two ends of the wire harness passing through the door shall be clamped tightly with wire clamps, and the wire passing through the door shall be wrapped in a corrugated pipe in a "U" or "S" shape. The length of the wiring harness should ensure that the wiring harness does not stack when the door and conductive objects are opened and closed. The door frame should not be wiped during the opening and closing process, and the door opening should be ≥ 120 °. 6.22. The electrical clearance between exposed wire ends of the secondary circuit and between exposed wire ends and the metal frame should not be less than 4mm, and the creepage distance should not be less than 6mm. 6.23. It is not allowed to damage the surface coating of the cabinet during wiring, and electrical components should not be damaged during installation and wiring. 6.24. During the wiring process, it is not allowed for any foreign objects to fall into the components, especially in the contact gaps of components with contacts or in the coil gaps of magnetic components, as well as in the arc extinguishing chambers of circuit breakers and knife switches, to avoid component jamming or short circuits.

　　6.25.在一般情况下导线不允许弯许多类似弹簧状的圆圈后接线，但接地线和元器件有活动接点的连接线除外，接地线和有活动连接线的圈数限定5圈，如下图：6.26.元件本身引线与导线的连接必须配有接线片或小接线过渡端子，不允许直接搭接。6.27.行线时如遇导线太短，必须调换，不允许将导线加长。6.28.产品上所有的接线端子，应根据接线图的要求，标注或套上标记套(回路标号)。6.29.有接地母线的产品，每个互感器必须下一根接地线接地母线排上，其余产品互感器相连后必须下一根接地导线到接地螺钉。6.30.二次线接到元器件桩头时，线不能贴牢元器件敷设或用吸盘固定在元器件上，上线方式也应有序，二次线不能遮住元器件一次接线桩头，应考虑到配件本身的发热及检修拆换方便。6.31.二次线在敷设途中如遇有金属障碍时，应加以弯曲越过，中间保持4mm以上的距离。

　　6.25. In general, wires are not allowed to be bent into many spring like circles for wiring, except for connecting wires with movable contacts between grounding wires and components. The number of turns for grounding wires and connecting wires with movable contacts is limited to 5, as shown in the following figure: 6.26. The connection between the component's lead wire and the wire must be equipped with terminal blocks or small wire transition terminals, and direct overlap is not allowed. 6.27. If the wire is too short during wiring, it must be replaced and it is not allowed to lengthen the wire. 6.28. All wiring terminals on the product should be labeled or fitted with marking sleeves (circuit numbers) according to the requirements of the wiring diagram. 6.29. For products with grounding busbars, each transformer must have a grounding wire connected to the grounding busbar, and for other products, after connecting the transformers, a grounding wire must be connected to the grounding screw. 6.30. When connecting the secondary wire to the component pile head, the wire should not be firmly attached to the component or fixed on the component with suction cups. The wiring method should also be orderly, and the secondary wire should not cover the primary wiring pile head of the component. Consideration should be given to the heating of the accessories themselves and the convenience of maintenance and replacement. 6.31. If there is a metal obstacle during the laying of the secondary line, it should be bent and crossed, with a distance of at least 4mm in between.

　　7、线头制作及配件上线工艺要求线头制作:即对线头弯圆或冷压铜制接线端头。7.1.线头制作时不能使导线的线芯和绝缘层受到损伤。7.2.剥线钳刃口应与线径相匹配。7.3.压线钳的选择不同的端头应分别采用相适应的专用冷压接钳。a)预绝缘端头压线钳口见图1所示。b)裸端头压线钳口见图2所示。c)管形预绝缘端头压线钳口见图3所示。e)触针式端头压线钳口见图4所示。7.4.线芯与端头配合a)预绝缘端头与导线的冷压接后尺寸见图5。b)管形预绝缘端头与导线的冷压后尺寸见图6。c)裸端头与导线的冷压接后尺寸见图7。d)触针式端头与导线冷压接后的尺寸见图87.5.对单芯导线线头一般采用尖咀钳或圆头钳进行弯成单眼圈,弯圈后的导线其线芯不允许受到损伤，圆圈应基本成圆形且其内径应比电器接点螺栓直径大0.5～1mm，羊眼圈末端距导线绝缘应有2～4mm距离，保证装入接点时垫圈不压着导线绝缘，导线接入接点后，从垂直方向看去不得有线芯弯成的羊眼圈露出；单眼圈呈顺时针接入螺钉。7.6.工艺要求a）端子的接线均应采用冷压接端头，线芯直接接于电器接线端子只有该接线端子适应于这种方法才能允许。b）预绝缘端头压接后，绝缘部分不能出现破损或开裂。c）导线芯插入冷压接端头后，不能有末插入的线芯或线芯露出端子管外部以及绞线的现象，更不能剪断线芯。（见图所示）d）冷压接端头的规格必须与所接入的导线直径相吻合，导线与冷压接端头的配合见本守则的规定。e）剥去导线绝缘层后，应尽快与冷压接端头压接，避免线芯产生氧化膜或粘有油污。f）压接后导线与端头的抗拉强度应不低于导体本身抗拉强度的60%。不同端头与导线压接拉力负荷值见表。端头规格与端头配合的导线截面积mm2拉力负荷值，NN预绝缘端头裸端头0.5.50.5.560751.0.00.75.7590120

　　7. Wire head production and accessories online process requirements: Wire head production: that is, bending the wire head into a circle or cold pressing copper terminal head. 7.1. During the production of wire ends, the core and insulation layer of the wire must not be damaged. 7.2. The cutting edge of the wire stripping pliers should match the wire diameter. 7.3. The selection of crimping pliers should use specialized cold crimping pliers that are suitable for different ends. a) The pre insulated end crimping clamp is shown in Figure 1. b) The bare end crimping jaws are shown in Figure 2. c) The clamping jaws for the pre insulated end of the tube are shown in Figure 3. e) The needle type end crimping jaws are shown in Figure 4. 7.4. Core and Terminal Coordination a) The dimensions of the pre insulated terminal and the wire after cold crimping are shown in Figure 5. b) The dimensions of the pre insulated end of the tube and the wire after cold pressing are shown in Figure 6. c) The dimensions of the bare end and wire after cold crimping are shown in Figure 7. d) The dimensions of the contact pin end and the wire after cold crimping are shown in Figure 87.5. For single core wire ends, sharp pliers or round pliers are generally used to bend them into a single eye circle. The wire core of the bent wire should not be damaged. The circle should be basically circular and its inner diameter should be 0.5-1mm larger than the diameter of the electrical contact bolt. The end of the eye circle should be 2-4mm away from the wire insulation to ensure that the gasket does not press the wire insulation when installing the contact. After the wire is connected to the contact, the eye circle formed by the wire core bending should not be exposed when viewed from the vertical direction; The single eye socket is connected clockwise with screws. 7.6. Process requirements: a) Cold crimping terminals should be used for terminal wiring, and the wire core should be directly connected to the electrical terminal. Only when the terminal is suitable for this method can it be allowed. b) After crimping the pre insulated end, the insulation part should not be damaged or cracked. c) After inserting the wire core into the cold crimping end, there should be no un inserted wire core or wire core exposed outside the terminal tube or stranded wire, and the wire core should not be cut. (As shown in the figure) d) The specifications of the cold crimping terminal must match the diameter of the connected wire, and the coordination between the wire and the cold crimping terminal is specified in this code of practice. e) After stripping the insulation layer of the wire, it should be crimped with the cold crimping end as soon as possible to avoid the formation of oxide film or oil stains on the wire core. f) The tensile strength of the wire and end after crimping should not be less than 60% of the tensile strength of the conductor itself. The load values of the crimping tension between different ends and wires are shown in the table. Terminal specifications and cross-sectional area of the wire that matches the terminal in mm2 tensile load value, NN pre insulated terminal bare end 0.5.50.560751.000.75.7590120

　　11001601.5.51.5.51402202.5.52.5.51903204.0.042755006.0.06360630g）针形端头、片形端头和管形端头长度，应根据所接入的端子情况，接触长度应与端子相一致或少长出压线螺钉；二个压线螺钉时（如电度表），其端头长度应保证二个螺钉均接触固定。（见图所示）?h）触针式端头j）通常不允许二根导线接入一个冷压接端头，因接线端子限制必须采用时，宜先采用二根导线压接的专用端头，否则宜选用大一级或大二级的冷压接端头。预绝缘端头与二根导线压接配合仍应符合要求，避免出现裸线芯露出绝缘管外的情况。（见图所示）k）一个接线端子接入二个冷压接端头时，应根据不同的端子接线形式，选择适合的冷压接端头。①螺钉串插式平板连接宜采用圆形和叉形端头（见图a所示）。允许两种不同的端头同时使用，且允许不同大小线径的冷压接端头接线，此时大线径在下面，小线径在上面。连接时两端头采用背靠背的形式，相叠或张开相互夹角不小于30?（见图b所示）。②螺钉串插式弧形板连接宜采用针形端头或管形端头，也可采用圆形端头。采用两个针形或管形端头时，线径或端头大小应相同（见图a所示）。③平板压接式连接宜采用片形端头。（见图b所示④弧形板压接式连接宜采用针形和管形端头。但线径或端头大小应相同。（见图c所示）7.7.对多芯导线线径剥头后，应在导线端部压上冷压接端头,具体做法是：用剥线钳剥去5～7mm长的塑料皮，并将号码管套上，打开冷压钳，将冷压钳端子标记向上，放入冷压钳相应的钳口处，把导线插入冷压端子内，然后进行压接，必需加压钳口完全闭合方可放开，并达到如下要求：1)压接冷压接端头时,线芯顶端应露出插套0.5～1mm，不带绝缘护套的压接端头，导线绝缘层与插套之间的过渡间隙应控制在0.5mm范围内。2)冷压钳锥口的中心应对准冷压接端头插套焊缝中心,压痕在无焊缝处。7.8.低压抽屉柜接线头一律采用冷压端子。7.9.同一电器单位应用同一种导线端头制作方法。7.10.冷压接端头的选用，应根据元器件上接线端头的型式不同而不同：当电接点两边没有挡板时必需选用TO型冷压如接地线桩头、电线与母排的连接处、CT、PT及大部分仪表上，样式见图：?7.11.冷压接端头的规格应根据导线的截面积或设计要求进行选用，具体见下表1:7.12.剥线的长度应按电器元件接线板上螺钉的直径来确定如表2所示:螺钉直径（mm）34568剥线长度（mm）

　　11001601.5.51.5.51402202.5.52.5.5519032040.0.042755006.0.06360630g) The length of needle shaped end, sheet shaped end, and tube shaped end should be consistent with the terminal or at least extend the crimping screw according to the condition of the connected terminal; When using two crimping screws (such as an electricity meter), the length of the end should ensure that both screws are in contact and fixed. (As shown in the picture)? h) Pin type terminals (j) usually do not allow two wires to be connected to one cold crimping terminal. When it is necessary to use terminals due to limitations, it is advisable to first use a dedicated terminal for crimping two wires. Otherwise, it is recommended to use a cold crimping terminal that is one or two levels larger. The pre insulated end should still meet the requirements for crimping with two wires to avoid the situation where the bare wire core is exposed outside the insulation tube. When one terminal is connected to two cold crimping terminals (as shown in the figure), the appropriate cold crimping terminal should be selected according to the different terminal connection forms. ① Screw string insertion flat plate connections should use circular and fork shaped ends (as shown in Figure a). Allow two different types of terminals to be used simultaneously, and allow cold crimping terminals of different sizes to be connected, with the larger wire diameter at the bottom and the smaller wire diameter at the top. When connecting, the two ends should be in a back-to-back form, with an angle of no less than 30 degrees between each other when overlapping or opening? (As shown in Figure b). ② The screw string insertion arc-shaped plate connection should use needle shaped or tube shaped ends, and circular ends can also be used. When using two needle or tube shaped ends, the wire diameter or end size should be the same (as shown in Figure a). ③ Flat press fit connections should use sheet shaped ends. (As shown in Figure b, it is recommended to use needle shaped and tube shaped ends for the arc-shaped plate crimping connection.). But the wire diameter or end size should be the same. 7.7. After stripping the diameter of the multi-core wire, a cold crimping end should be pressed onto the wire end. The specific method is to use wire stripping pliers to strip off the 5-7mm long plastic skin, and cover the number tube. Open the cold crimping pliers, mark the terminal of the cold crimping pliers upwards, place it in the corresponding clamp of the cold crimping pliers, insert the wire into the cold crimping terminal, and then perform crimping. It is necessary to apply pressure until the clamp is completely closed before releasing it, and meet the following requirements: 1) When crimping the cold crimping end, the top of the wire core should be exposed 0.5-1mm from the socket, and the crimping end without insulation sheath should have a transition gap between the wire insulation layer and the socket. It should be controlled within a range of 0.5mm. 2) The center of the cold press clamp cone should be aligned with the center of the cold press joint end socket weld, and the indentation should be made at the location without weld. 7.8. Cold pressed terminals shall be used for all wiring heads of low-voltage drawer cabinets. 7.9. The same electrical unit should use the same method for making wire ends. 7.10. The selection of cold crimping terminals should vary depending on the type of terminals on the components: when there are no baffles on both sides of the electrical contact, TO type cold crimping must be selected, such as grounding wire pile heads, wire and busbar connections, CT, PT, and most instruments. The style is shown in the figure:? 7.11. The specifications of cold crimping terminals should be selected according to the cross-sectional area of the wire or design requirements, as shown in Table 1: 7.12. The length of wire stripping should be determined according to the diameter of the screw on the electrical component wiring board, as shown in Table 2: screw diameter (mm) 34568 wire stripping length (mm)

　　TUTO型冷压头规格尺寸7.13.元器件的接线方式有:a)直接接入法b)焊接型接法c)螺钉压接型接法 d)插接型接法⑴直接接入法:如电度表及抽屉式二次插件上用瓦型垫圈压接的接线方式，用瓦型垫圈压接接线线头制作应达到如下要求：1)用瓦型垫圈压接的导线，导线的线芯应露出瓦型垫圈0.5～1.0mm。2)接入一根导线时，导线应顺螺钉旋紧方向插入。3)两根接入瓦型垫圈接线端的导线，线径不相同时,其中线径细的单芯导线可将导线线芯弯曲180度后再插入，如下图,多芯导线须用冷压接头。⑵焊接型接线原则:1)焊接型接线端要求焊点光亮、牢固，不允许出现虚焊、漏焊。2)导线元器件上的焊接处在焊接前应其表面氧化层,并进行搪锡处理。3)焊接时可以用少量松香或少量中性助焊剂,不允许使用酸性助焊剂进行焊接。4)焊接完毕后，焊点应当用洒精棉擦试清洁。5)焊接时应注意保护导线的绝缘层不被烫伤，或产生明显的热收缩现象。⑶螺钉压接型接线：即用螺钉压接弯圆导线或压接TO TU型压接端头的多芯导线接线原则:1)被压接的弯圆型导线，导线的弯圆方向应与螺钉的旋紧方向相一致,方向不允许逆转。2)两根弯圆导线接入接线端时，弯圆导线之间必须垫入与螺钉相应的铜质平垫圈,并且导线规格不同时,应将截面积大的导线放在接线端底部。3)弯圆导线接入接线端时，导线的绝缘层不允许被平垫压住,两根TO、TU型压接端头的导线应“背对背”接入接线端。4)二次线接母排上时,必须在排上打孔，2.5mm2以下的导线用M5螺钉孔，4mm2以上的用M6螺钉连接，一个孔允许接2根线，该孔另一面不允许再接线。二次线不允许从母排相间穿过。5)一般电流电压互感器及部分仪表以及抽屉式断路器的次插件桩头大多无弹垫，上线后易松。⑷插接型接线在线芯上插接插针型冷压铜接端头后，用适当工具压接牢固,再插接在元器件相应的插接片上，插接后不得有松动现象。

　　The specifications and dimensions of the TUTO type cold press head are 7.13. The wiring methods for components include: a) direct connection method, b) welding connection method, c) screw compression connection method, d) plug-in connection method. (1) direct connection method: for example, the wiring method of crimping with a tile washer on an electricity meter and a drawer type secondary plug, the wire head made by crimping with a tile washer should meet the following requirements: 1) For wires crimped with a tile washer, the wire core of the wire should protrude 0.5-1.0mm from the tile washer. 2) When connecting a wire, the wire should be inserted in the direction of tightening the screw. 3) When two wires with different diameters are connected to the tile shaped gasket terminal, the single core wire with a thinner diameter can be bent 180 degrees and then inserted, as shown in the figure below. Multi core wires require cold pressed joints. ⑵ Welding type wiring principle: 1) Welding type wiring terminals require bright and firm welding points, and no virtual welding or leakage is allowed. 2) Before welding, the surface oxide layer of the solder joints on the wire components should be removed and treated with tin coating. 3) A small amount of rosin or neutral flux can be used during welding, and acidic flux is not allowed for welding. 4) After welding, the welding points should be wiped clean with a cotton swab. 5) During welding, attention should be paid to protecting the insulation layer of the wire from burns or significant thermal shrinkage. ⑶ Screw crimping type wiring: that is, using screws to crimp bent round wires or TO TU type crimping terminals for multi-core wire wiring principles: 1) The bending direction of the crimped bent round wire should be consistent with the tightening direction of the screw, and the direction should not be reversed. 2) When two bent round wires are connected to the terminal, copper flat washers corresponding to the screws must be inserted between the bent round wires, and when the wire specifications are different, the wire with a larger cross-sectional area should be placed at the bottom of the terminal. 3) When a bent round wire is connected to the terminal, the insulation layer of the wire is not allowed to be pressed down by a flat pad. The wires of the two TO and TU type crimping terminals should be connected back to back to the terminal. 4) When connecting the secondary wire to the busbar, holes must be drilled on the busbar. For wires with a diameter of less than 2.5mm2, M5 screw holes should be used, and for wires with a diameter of more than 4mm2, M6 screws should be used for connection. Two wires are allowed to be connected to one hole, but no further wiring is allowed on the other side of the hole. Secondary lines are not allowed to pass through the busbar alternately. 5) The secondary plug heads of general current and voltage transformers, some instruments, and drawer type circuit breakers mostly have no spring pads and are prone to loosening after being put online. ⑷ Plug in type wiring: After inserting the pin type cold pressed copper terminal on the wire core, use appropriate tools to press it firmly, and then plug it into the corresponding socket of the component. There should be no looseness after insertion.

　　7.14.桩头上线的工艺要求⑴一般情况每个接线端点只允许连接一根导线接头多允许连接二根导线，并在导线压接端头的上下侧均应配有平垫圈，导线压接端头必须可靠推入且螺丝需拧紧不得有松动现象，对未接线的紧固件在完工时应逐个拧紧避免松动脱落，螺钉端头伸出螺母应符合露出(2～5牙)的标准。⑵连接元器件上的接线头必须弯成贺弧形，有利于检修，线也不易损伤。同一台同一类电器或同种方案的几台巨子元件接线后所弯成的圆弧大小和高度应统一。⑶凡是直流电流表须配有分流器时，其二次接线应直接连接，不得经过端子板，当线径为1.5平方时其长度不得超过3m。⑷连接到发热元件(如管形电阻，板形电阻，瓷盘电阻)上的导线，应从其侧方或下方引出，离发热元件30mm以上，当接入小于或等于15W管形电阻时应剥去导线绝缘层20mm左右长度，接入大于15W管形电阻时应剥去导线绝缘约40mm。然后套上耐热瓷珠，再进行连接，焊接处应牢固无虚焊、漏焊。⑸对于小于75W的管形电阻允许用螺杆串心后一头固定在骨架或支架上。对大于75W的管形电阻应用螺杆串心后二头固定后才能接线。对时间继电器上的附加电阻不能悬挂焊接，应固定在面板支件上。⑹导线接到电器元件接线端头时，导线不允许把元件上的接线端头遮住，应方便拆装。

　　7.14. Process requirements for the installation of pile heads (1) Generally, only one wire is allowed to be connected to each wiring endpoint, and a maximum of two wires are allowed to be connected to the joint. Flat washers should be provided on both the upper and lower sides of the wire crimping end. The wire crimping end must be reliably pushed in and the screws must be tightened without loosening. Unwired fasteners should be tightened one by one upon completion to avoid loosening and falling off. The protruding nut of the screw end should meet the standard of exposing (2-5 teeth). The connectors on the connected components must be bent into a curved shape, which is conducive to maintenance and the wires are not easily damaged. The size and height of the arc formed by connecting several giant components of the same type or scheme should be uniform. When a DC ammeter needs to be equipped with a shunt, the secondary wiring should be directly connected and not pass through the terminal board. When the wire diameter is 1.5 square meters, its length should not exceed 3 meters. The wire connected to the heating element (such as tube shaped resistor, plate shaped resistor, porcelain plate resistor) should be led out from its side or below, at least 30mm away from the heating element. When connecting a tube shaped resistor less than or equal to 15W, the insulation layer of the wire should be stripped off by about 20mm, and when connecting a tube shaped resistor greater than 15W, the insulation of the wire should be stripped off by about 40mm. Then, heat-resistant ceramic beads should be placed on it before connection, and the welding should be firm without virtual welding or leakage. ⑸ For tubular resistors less than 75W, it is allowed to fix one end of the screw after threading on the skeleton or bracket. For tubular resistors with a power greater than 75W, the screw should be threaded and fixed at both ends before wiring. The additional resistor on the time relay cannot be suspended and welded, but should be fixed on the panel support. When connecting the wire to the terminal of an electrical component, the wire should not cover the terminal of the component and should be easy to disassemble and assemble.

　　8、二次行线部分示例及符号牌形式8.1.端子排的配线心⑴导线接入端子前应做成圆弧形状4其圆弧半径不小于10mm，圆弧跨度长视标记套管长度而定。(见图a)⑵导线接入端子排前的分线:1)导线从上往下接入端子排。(见图b)(见图c)2)导线从下往上接入端子排。3)导线从端子排中间分别向上、下方向接入端子排。(见图c)4)插销式扎带捆扎方式导线接入端子排，分线前应捆扎，一次多分3根导线或分出接入3只端子排距离的导线。(见图e)5)卷式结束保护带包扎方式导线接入端子排，应按接入端子排的导线顺序，相对于接线端子位置，逐渐分出。(见图f)6)行线槽方式导线接入端子排，行线槽与端子排的安装距离应为40mm～60mm之间，导线相对于接线端子位置从行线槽出线孔逐渐分出;行线槽孔距应选择与端子板厚度相同，导线分出平直，高度一致。(见图d)8.2.电器元件端子的配线⑴导线接入端子前应做成圆弧形状，其圆弧半径不小于10mm，跨度长视标记套管长度而定。(见图a)⑵导线距离端子接线管端部的弯曲应符合规定要求，因装配限制接线端头必需弯曲时，只允许弯曲一次，且折弯角度不得大于45°。(见图b)⑶LA、AD11型按钮、信号灯配线见图c所示,⑷LW5型转换开关配线见图d所示，导线跨度不应大于120mm。⑸LW12型转换开关配线见图e所示，导线跨度不应大于120mm。⑹LW2型转换开关配线见图f所示，导线跨度不应大于150mm和90mm。⑺42L6仪表配线见图g所示，导线弯曲跨度不应超过仪表边缘。⑻6L2仪表配线见图h所示，导线超出仪表上部边缘不大于6mm，左右与边缘平齐。?⑼继电器的配线见图i所示。⑽电器接线端子位于并突出于电器中间段的配线见图所示，导线与电器面的角度不大于30°。⑾仪表门的配线(见图k所示)各电器元件配线方向应从导线束敷设相反的方向弯绕各电器元件的安装应端正，导线敷设应尽量采用集中线束的方法。8.3.其他⑴二次电源线接线:──采用专用接线端头，二次电源线用冷压扁平快速端头与之连接。(见图I)──在母排上开4的孔或直接攻丝，采用M4螺钉连接。──导线长度应留有适当的裕量，并将其卷成螺旋形状螺旋形内径约8mm～10mm，绕3～5圈。(见图m)8.4.保护接地⑴标志和识别a)保护接地端子应采用颜色标志(黄-绿双色的标志)b)文字符号采用PE识别。图形符号见图n、图O优先选用图O⑵接地保护的范围a)所有作为隔离带电导体的金属隔板均应有效地接地。石形笑设备的框架、仪用变压器的金属外壳、开关电器、仪继电器的金属外壳以及金属手动操作机构均应有效接c) 对于门、盖板、覆板和类似部件，如果其上没有安装电气设备则一般金属螺钉连接或镀锌的金属绞链连接就认为保证了电的连续性:如果其上装有额定电压值超过42V的电气设备时，应采用保护导体将这些部件和保护电路连接。8.5.二次行线部分示例及符号牌形式⑴分路部分接入单排仪表的线束布置示例:⑵分路部分到双排仪表的线束，可用中间分线的布置⑶分路部分到按钮，熔断器，控制开关等部件的线束布置原则上按横向对称行走，如果受到位置上的限制，允许紧问对称行走，所有接线应有一定抛度，其抛度高为20mm左右。信号灯或按钮双排及双排以上布置接线⑷分路部分到继电器的线束，一律按水平居中向两侧分开的方向行走。到继电器接线端的每根线应略带圆弧状连接般圆弧如图，力求同面板上的各种继电保护回路圆弧──?⑸符号牌形式及编写方法见下附图，符号牌横线上方编写元件安装序号如:1、1;横线下方编写元件符号。接线图上有设计标志时按图纸要求编号。

　　8. Example and symbol plate form of secondary wiring section 8.1. Wiring center of terminal block (1) The wire should be made into a circular arc shape before being connected to the terminal. The radius of the circular arc should not be less than 10mm, and the span length of the circular arc depends on the length of the marked sleeve. (See Figure a) ⑵ Wire distribution before connecting to the terminal block: 1) The wire is connected to the terminal block from top to bottom. (See Figure b) (See Figure c) 2) Connect the wire from bottom to top into the terminal block. 3) The wires are connected to the terminal block in both upward and downward directions from the middle of the terminal block. (See Figure c) 4) Pin type zip tie binding method: When connecting wires to terminal blocks, they should be tied before splitting. A maximum of 3 wires can be split at a time or wires that are separated and connected to a distance of 3 terminal blocks can be added. (See Figure e) 5) The wrapping method of the rolled end protective tape should gradually separate the wires connected to the terminal block in the order of the wires connected to the terminal block, relative to the position of the terminal block. (See Figure f) 6) The wire is connected to the terminal block through the wire slot method, and the installation distance between the wire slot and the terminal block should be between 40mm and 60mm. The wire gradually branches out from the wire slot outlet hole relative to the wiring terminal position; The distance between the wire slot holes should be selected to be the same as the thickness of the terminal board, with straight wire branches and consistent height. (See Figure d) 8.2. Wiring of Electrical Component Terminals (1) Before connecting the wire to the terminal, it should be made into a circular arc shape with a radius of not less than 10mm, and the span length depends on the length of the marked sleeve. (See Figure a) ⑵ The bending of the wire from the end of the terminal conduit should meet the specified requirements. Due to assembly limitations, when the terminal must be bent, only one bending is allowed, and the bending angle should not exceed 45 °. (See Figure b) ⑶ The wiring of LA and AD11 buttons and signal lights is shown in Figure c, (4) The wiring of LW5 type conversion switch is shown in Figure d, and the wire span should not exceed 120mm. (5) The wiring of LW12 type conversion switch is shown in Figure e, and the wire span should not exceed 120mm. (6) The wiring of LW2 type conversion switch is shown in Figure f, and the wire span should not exceed 150mm and 90mm. (7) The wiring of 42L6 instrument is shown in Figure g, and the wire bending span should not exceed the edge of the instrument. The wiring of the 6L2 instrument is shown in Figure h. The wire should extend no more than 6mm beyond the upper edge of the instrument and be level with the edge on both sides.? The wiring of the relay is shown in Figure i. The wiring of the electrical wiring terminal located in and protruding from the middle section of the electrical appliance is shown in the diagram, and the angle between the wire and the electrical surface is not greater than 30 °. The wiring direction of each electrical component in the instrument door (as shown in Figure k) should be bent in the opposite direction of the wire harness. The installation of each electrical component should be upright, and the wire harness should be laid in a centralized manner as much as possible. 8.3. Other (1) Secondary power cord wiring: - Use dedicated wiring terminals, and connect the secondary power cord to it with cold pressed flat quick connectors. (See Figure I) - Drill 4 holes or directly tap on the busbar, and use M4 screws for connection. The length of the wire should have an appropriate margin, and it should be coiled into a spiral shape with an inner diameter of about 8mm to 10mm, and wound 3 to 5 times. (See Figure m) 8.4. Protective Grounding ⑴ Marking and Identification a) Protective grounding terminals should use color markings (yellow green dual color markings) b) Text symbols should be identified by PE. The graphic symbols are shown in Figure n and Figure O, and Figure O (2) is preferred for the range of grounding protection. (a) All metal partitions used as isolated live conductors should be effectively grounded. The frame of the Shixingxiao equipment, the metal casing of the instrument transformer, the metal casing of the switchgear, the metal casing of the instrument relay, and the metal manual operating mechanism should all be effectively connected. c) For doors, cover plates, cladding, and similar components, if no electrical equipment is installed on them, metal screw connections or galvanized metal hinge connections are generally considered to ensure electrical continuity. If electrical equipment with a rated voltage exceeding 42V is installed on them, protective conductors should be used to connect these components to the protective circuit. 8.5. Examples of Secondary Wiring Parts and Symbol Plate Forms: (1) Wiring Harness Layout Example for Branch Connection to Single Row Instruments: (2) Wiring Harness from Branch Connection to Double Row Instruments can be arranged with a middle branch line. (3) Wiring Harness Layout from Branch Connection to Buttons, Fuses, Control Switches, and Other Components should be arranged symmetrically in the horizontal direction. If restricted by position, it is allowed to walk symmetrically. All wiring should have a certain degree of throw, with a throw height of about 20mm. The wiring of signal lights or buttons should be arranged in double rows or more. The wiring harness from the branching part to the relay should be horizontally centered and move in a direction separated from both sides. Each wire to the relay terminal should have a slightly curved connection as shown in the diagram, striving to match the various relay protection circuit arcs on the panel? The form and writing method of the symbol board are shown in the attached figure. The component installation number is written above the horizontal line of the symbol board, such as: 1, 1; Write component symbols below the horizontal line. When there are design symbols on the wiring diagram, they should be numbered according to the requirements of the drawing.

　　9、检验规则⑴接线完工后一定要打扫柜内与周围的杂物，进行自检。⑵接线头螺钉有无松动现象，如有松动，即加以紧固。⑶所行线路要平、直、齐、牢。⑷所有元件不接线的端子，都需配齐螺钉、螺母、垫圈等并要求紧固。⑸按技术要求的各项规定，进行元件规格的外观检查,并符合图纸要求。⑹核对导线选用规格是否正确，导线绝缘层及导体有无损伤。⑺检查扎线质量、弯曲半径是否符合要求，方向是否正确。⑻检查此次回路的电气间隙、爬电距离、距离是否符合规定要求。⑼按原理接线图及施工接线图，检查导线连接是否正确。⑽按有关技术条件和标准，进行出厂检试。

　　9. Inspection rule ⑴ After the wiring is completed, it is necessary to clean the cabinet and surrounding debris for self inspection. Check for any looseness in the wiring head screws. If there is any looseness, tighten them. The route should be flat, straight, even, and secure. All components without wiring terminals must be equipped with screws, nuts, washers, etc. and tightened. According to the technical requirements, conduct a visual inspection of the component specifications and ensure compliance with the drawing requirements. ⑹ Check whether the specifications of the selected wires are correct, and whether the insulation layer and conductor of the wires are damaged. Check the quality of the cable tie, whether the bending radius meets the requirements, and whether the direction is correct. Check whether the electrical clearance, creepage distance, and safety distance of this circuit meet the specified requirements. According to the principle wiring diagram and construction wiring diagram, check whether the wire connections are correct. Conduct factory inspection according to relevant technical conditions and standards.

　　本文由 济南机箱机柜  友情奉献.更多有关的知识请点击  http://www.tongyuhengcheng.com/   真诚的态度.为您提供为的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is a friendly contribution from Jinan Chassis Cabinet For more related knowledge, please click http://www.tongyuhengcheng.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.