The distribution box of the device has the corresponding specifications, which we need to follow. Next, we electrical equipment manufacturers will talk about the precautions of the distribution box of the device.
(1) The main distribution box, distribution box and switch box shall be set in the power distribution system for construction, and they shall be set according to the sequence of "general - separate - Open" and form the form of "three-level distribution".
(2) The device orientation of each distribution box and switch box in the construction power distribution system shall be reasonable. The general distribution box should be close to the transformer or external power source as far as possible to facilitate the introduction of power supply. The distribution box shall be installed in the central area where the electric equipment or load meet as far as possible to ensure the balance of three-phase load. The orientation of the switch box device shall be close to the electrical equipment controlled by it as far as possible according to the site conditions and working conditions.
(3) To ensure the three-phase load balance of the temporary power distribution system, the power and lighting power on the construction site should form two power circuits, and the power distribution box and lighting distribution box should be set separately.
(4) All electrical equipment on the construction site must have their own special switch box.
(5) The box and internal setting of distribution boxes at all levels must comply with safety regulations, the switch appliance shall be marked with use, and the box shall be numbered uniformly. The power supply shall be cut off and the door shall be locked when the distribution box is out of service. The fixed distribution box of complete electrical manufacturer shall be provided with fence and rain proof and smashing proof measures.
(6) The difference between distribution box and distribution cabinet. According to GB / t20641-2006 General requirements for empty shells of low voltage switchgear and controlgear assemblies
The distribution box is generally used in the family, while the distribution cabinet is mostly used in the gathering power supply, such as industrial power and construction power. The distribution box and the distribution cabinet belong to the complete electrical equipment, the distribution box belongs to the complete low-voltage equipment, and the distribution cabinet has high voltage and low voltage.