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What are the maintenance requirement distribution box

What are the maintenance requirement distribution box:
1, high and low pressure power distribution box door should be equipped with locks, and should have held by hand.
2, the distribution box to stop regular maintenance, inspection, necessary to its former level of electrical isolation switch opening TAM off and hanging "stop closing, some work" fail signs, live line work is strictly prohibited.
3, distribution boxes shall have title, usefulness, tap mark and system wiring diagram.
4, the distribution box should be checked regularly and repair. Inspection and maintenance personnel must be trained electricians.
5, distribution box of checks and maintenance must wear insulated gloves and shoes in accordance with regulations, you must use the electrical insulated tools, maintenance inspection should be recorded.