5) n and PE bus bars are not set in the lighting distribution box (board).
Consequence: no N and PE bus bars are set in the lighting distribution box (board), which can not ensure the safe operation of the line.
Measures: in the lighting distribution box (board), zero line (N line) and protective earth wire (PE line) bus bars shall be set respectively, and the zero line and protective earth wire shall be connected on the bus bar without stranding and shall be numbered.
Kevin
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