2. Short-circuit protection, load protection, selection of wire diameter, and installation of low-voltage electrical (air conditioners, household appliances, etc.) shall be carried out according to regulations.
3. When laying electric wires through the pipe, the total cross-sectional area of ​​the electric wires in the pipe (including the outer skin) shall not exceed 40% of the cross-sectional area of ​​the inner diameter of the pipe.
4, the line should be fixed, horizontal and vertical lines.
5, the dark line must use safe and reliable sheathed wire, embedding does not allow wire connectors.
6, socket should be about 200mm from the ground, the line box must stay in the head of each line, the length of not less than 150mm. (Left zero line, right phase line) for repair.
7, wiring to do the phase line into the switch, the zero line into the lamp.
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