济南机箱机柜里的高压柜，电气距离该留多少？

　　How much electrical distance should be left for the high-voltage cabinet in the Jinan chassis cabinet?

　　在济南的工厂、配电房等场景中，济南机箱机柜生产的高压柜是电力系统的核心设备。不少采购高压柜的企业负责人或电力运维人员，都会关注一个关键问题：高压柜里的电气距离到底该留多少？其实电气距离是高压柜运行的“生命线”，直接关系到设备是否会出现短路、放电等故障。今天就专门围绕济南机箱机柜中的高压柜，给大家科普不同电压等级对应的电气距离标准，把这些关键数据和注意事项讲明白。

　　In factories, distribution rooms, and other scenarios in Jinan, the high-voltage cabinets produced by Jinan chassis cabinets are the core equipment of the power system. Many business leaders or power operation and maintenance personnel who purchase high-voltage cabinets will pay attention to a key question: how much electrical distance should be left inside the high-voltage cabinet? In fact, electrical distance is the "lifeline" for the safe operation of high-voltage cabinets, directly related to whether equipment will experience faults such as short circuits and discharges. Today, we will specifically focus on the high-voltage cabinet in the Jinan chassis cabinet, to popularize the electrical distance standards corresponding to different voltage levels, and explain these key data and precautions clearly.

　　先给大家解释下，啥是高压柜的电气距离？简单说，就是高压柜内部不同带电部件之间，或者带电部件与接地部件之间的小距离。因为高压电在一定条件下会发生空气击穿，产生电弧放电，要是电气距离不够，就容易引发短路事故，烧毁设备甚引发火灾。所以济南机箱机柜厂家在生产高压柜时，都会严格按照相关标准预留电气距离，而不同电压等级的高压柜，对应的电气距离要求也不一样，核心就是电压越高，需要预留的距离就越大。

　　Let me explain to you first, what is the electrical distance of a high-voltage cabinet? Simply put, it refers to the minimum safe distance between different live parts inside the high-voltage cabinet, or between live parts and grounding parts. Because high voltage electricity can cause air breakdown and arc discharge under certain conditions, if the electrical distance is not sufficient, it is easy to cause short circuit accidents, burn equipment, and even cause fires. So when Jinan chassis and cabinet manufacturers produce high-voltage cabinets, they strictly reserve electrical distance according to relevant national standards. Different voltage levels of high-voltage cabinets have different electrical distance requirements, and the core is that the higher the voltage, the greater the safety distance that needs to be reserved.

　　常见的是相与相之间的电气距离，这是高压柜设计中核心的距离要求之一。不同电压等级对应的标准很明确，大家可以直接参考：3000V电压等级的高压柜，相与相之间的距离要留够70毫米；5600V的则需要100毫米；咱们济南工业场景中常用的10kV高压柜，相间距离标准是125毫米，这个数据也是济南机箱机柜厂家生产10kV高压柜时常遵循的；20kV电压等级的需要180毫米；35kV的则要留足300毫米。这些数据都是经过大量实验验证的阈值，一点都不能含糊。

　　The most common is the electrical distance between phases, which is one of the core distance requirements in high-voltage cabinet design. The standards corresponding to different voltage levels are very clear, and you can directly refer to them: for a high-voltage cabinet with a voltage level of 3000V, the distance between phases should be sufficient to be 70 millimeters; 5600V requires 100mm; The most commonly used 10kV high-voltage cabinet in our Jinan industrial scene has a phase to phase distance standard of 125 millimeters, which is also the most commonly followed by Jinan chassis cabinet manufacturers when producing 10kV high-voltage cabinets; 180mm is required for a voltage level of 20kV; For 35kV, a sufficient 300mm should be left. These data are security thresholds that have been extensively validated through experiments and cannot be ambiguous at all.

　　不过在实际生产和安装中，有时候会遇到柜体空间有限，没办法预留足够相间距离的情况。这时候也有解决方案——在相间加装绝缘板。但加装绝缘板后，也有明确的距离要求，不能随便装。具体来说，12kV及以下电压等级的高压柜，加装绝缘板后，对应的距离留够30毫米就可以；24kV的则需要40.5毫米；35kV的高压柜加装绝缘板后，距离要求是60毫米。这种方式既解决了柜体空间不足的问题，又能保证高压柜的运行，在济南不少小型工厂的高压柜配置中很常用。

　　However, in actual production and installation, sometimes there may be situations where the cabinet space is limited and it is not possible to reserve enough space between phases. At this point, there is also a solution - installing insulation boards between phases. But after installing the insulation board, there are also clear distance requirements and it cannot be installed casually. Specifically, for high-voltage cabinets with voltage levels of 12kV and below, after installing insulation boards, the corresponding safety distance should be kept at 30mm; For 24kV, 40.5mm is required; After installing insulation boards on the 35kV high-voltage cabinet, the distance requirement is 60mm. This method not only solves the problem of insufficient cabinet space, but also ensures the safe operation of high-voltage cabinets, which is commonly used in the configuration of high-voltage cabinets in many small factories in Jinan.

　　可能有人会问，为啥济南机箱机柜厂家都要严格遵守这些电气距离标准？核心还是为了和稳定。济南作为工业重镇，高压柜广泛应用于各类生产场景，一旦因为电气距离不达标出现故障，不仅会导致工厂停产，造成经济损失，还可能引发事故。而且符合标准的高压柜，才能通过相关部门的验收，正常投入使用。所以济南本地正规的机箱机柜厂家，在设计和生产高压柜时，都会把电气距离作为核心质控点，从图纸设计到生产组装，全程严格把控，确保每一台出厂的高压柜都符合标准要求。

　　Some people may ask, why do Jinan chassis and cabinet manufacturers strictly adhere to these electrical distance standards? The core is still for safety and stability. As an industrial hub, high-voltage cabinets are widely used in various production scenarios in Jinan. Once a fault occurs due to inadequate electrical distance, it not only leads to factory shutdown and economic losses, but also may cause safety accidents. And only high-voltage cabinets that meet the standards can pass the acceptance of relevant departments and be put into normal use. So local legitimate chassis and cabinet manufacturers in Jinan will take electrical distance as the core quality control point when designing and producing high-voltage cabinets. From drawing design to production assembly, they strictly control the entire process to ensure that every high-voltage cabinet leaving the factory meets the standard requirements.

　　给济南本地的企业提个实用建议：在采购高压柜时，一定要明确自己的电压等级需求，然后要求厂家提供符合对应电气距离标准的产品，让厂家出具相关的检测报告，避免买到非标产品。另外，在高压柜的安装和后期维护中，也不要随意改动内部结构，更不能因为空间紧张就擅自缩小电气距离；如果需要对高压柜进行改造，一定要找的技术人员，确保改造后仍然符合对应的电气距离标准。还有就是日常维护时，可以留意下内部部件是否有移位、变形等情况，一旦发现可能影响电气距离的问题，要及时处理。

　　A practical suggestion for local enterprises in Jinan: When purchasing high-voltage cabinets, it is important to clarify your voltage level requirements and request that the manufacturer provide products that meet the corresponding electrical distance standards. It is best to have the manufacturer provide relevant testing reports to avoid purchasing non-standard products. In addition, during the installation and later maintenance of the high-voltage cabinet, do not arbitrarily modify the internal structure, and do not arbitrarily reduce the electrical distance due to space constraints; If it is necessary to renovate the high-voltage cabinet, it is necessary to find professional technicians to ensure that it still meets the corresponding electrical distance standards after the renovation. Also, during daily maintenance, you can pay attention to whether there is any displacement or deformation of internal components. Once any problems that may affect electrical distance are discovered, they should be dealt with in a timely manner.

　　总结下来，济南机箱机柜中高压柜的电气距离有明确的标准，核心是电压越高，相间距离要求越大，空间不足时可加装绝缘板并遵循对应距离要求。电气距离是高压柜运行的关键，不管是厂家生产还是企业使用，都必须严格遵守。了解这些标准，能帮助企业更好地选用和维护高压柜，避免因电气距离问题引发故障。如果大家在济南高压柜的采购或电气距离相关问题上还有疑问，不妨咨询的机箱机柜厂家，获取更精准的技术建议。

　　In summary, there are clear standards for the electrical distance of high-voltage cabinets in Jinan chassis cabinets. The core is that the higher the voltage, the greater the requirement for phase to phase distance. When space is insufficient, insulation boards can be installed and corresponding distance requirements should be followed. Electrical distance is the key to the safe operation of high-voltage cabinets, and must be strictly observed by both manufacturers and enterprises. Understanding these standards can help companies better select and maintain high-voltage cabinets, avoiding faults caused by electrical distance issues. If you have any questions about the procurement of high-voltage cabinets or electrical distance related issues in Jinan, you may consult professional chassis and cabinet manufacturers for more accurate technical advice.

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