1.The power distribution system should be equipped with a total explosion-proof power socket box, a sub-explosion-proof power socket box, and a low-voltage explosion-proof power socket box, and the power distribution should be implemented
2.The distribution system should balance the three-phase load;
3.220V or 380V single-phase electrical equipment should be connected to 220V 380V three-phase four-wire system.
4.When the current of the single-phase lighting line is greater than 30A, it is advisable to use 220V 380V three-phase four-wire power supply.
5.A number of explosion-proof power socket boxes can be set up below the total explosion-proof power socket box.
6.A number of low-voltage explosion-proof power socket boxes can be set up below the explosion-proof power socket box.
7.The total explosion-proof power socket box should be located in the area close to the power supply, the explosion-proof power socket box should be located in the area where the electrical equipment or load is relatively concentrated, the distance between the explosion-proof power socket box and the low-voltage explosion-proof power socket box shall not exceed 30 meters, and the horizontal distance between the switch box and the fixed electrical equipment controlled by it shall not exceed 3 meters.
8.Each electrical equipment must have its own dedicated low-voltage explosion-proof power socket box, and it is strictly forbidden to use the same low-voltage explosion-proof power socket box to directly control 2 or more electrical equipment (including sockets).
9.Explosion-proof power socket box and lighting explosion-proof power socket box should be set up separately;When Ho merge is set up in the same explosion-proof power outlet box, the power and lighting should be distributed separately;Power explosion-proof power socket box and lighting explosion-proof power socket box must be set up separately;
10.The explosion-proof power socket box shall be installed in a dry, ventilated and normal temperature place, and shall not be installed in gas, smoke, moisture and other harmful media with serious damage effect, nor shall it be installed in places that are susceptible to the impact of foreign solid objects, strong vibration, liquid splashing and heat source baking. Otherwise, it should be removed or protected
11.There should be enough space and passage for 2 people to work at the same time around the low-voltage explosion-proof power socket box, and no items that hinder operation and maintenance should be stacked, and there should be no shrubs and weeds