1.Observe whether the instrument is working normally at any time, and pay attention to whether the various electrical connectors are heated to avoid leakage.
2.Check the performance and fixation of all electrical components and their accessories.
3.Regularly inspect the explosion-proof power distribution device to see if there is any fault.
4.The movement of the operating mechanism should remain flexible, and the auxiliary contacts should be properly separated and closed.
5.Whether the conductivity of each line is good.
6.The column grounding device should be in good condition;
7.Check whether the porcelain insulators, bushings, busbars, and various electrical connector components are in good condition;
8.The fixed contact and the fixed contact should be connected by the same wire and ensure sufficient pressure.
9.The surface of the box is treated with electrostatic spraying, and the spraying material must be anti-corrosion and wear-resistant plastic powder.
10.The external fasteners of the explosion-proof distribution box are made of hexagonal stainless steel screws, and flat washers and spring washers are also necessary, so that the cabinet can be made very tightly without any gaps.
11.The ratings of the main switch are compatible with those of the auxiliary switch. **Power distribution is realized by one machine, one door, one protection.
12.The wire inlet and outlet should be located at the bottom of the lower part of the box. It can also be placed on special occasions.
13.There is no debris around the explosion-proof distribution box, so as not to affect the operation and maintenance;The shell is grounded, and the distribution box is dangerous.