Line rules:

1. All construction site wires shall be in accordance with the contract requirements (generally use far east brand BV and BVR).

2. 1.5 mm 2 for general lighting, 2.5 mm 2 for ordinary socket, 4 mm 2 for kitchen socket, special line, electric water heater, air conditioner, Yuba, etc., and 1.5 mm 2 for ground wire.

3. When the supervisor enters the line, only red, blue, double color, green or yellow can be selected, and other colors are not allowed to enter the site. Red is used for live line, blue color is used for zero line, ground wire is used for double color, control line can only be green or yellow, and double control line is yellow or double color. The control line must control the phase line.

4. All TV, telephone, computer and audio wiring must be special lines, and no wiring or mixed lines are allowed. Double screen cable should be used for TV, four core wire for telephone and eight core wire for computer. Digital cable should be installed for TV.