Switching wires are required for each home. Before the renovation, several socket boxes should be opened to check the nozzle of the wire tube. If it is an aluminum wire, it must be replaced with a plastic copper wire. Because the aluminum wire has a low melting point and large electrical resistance, there is a potential safety hazard and the country has explicitly eliminated it. The newly-increased power socket and lighting circuit should be routed separately. Don't directly draw the line from the original circuit or directly from the socket. Any wiring or addition of sockets and lighting fixtures to the original circuit will cause the overload of a single circuit. It may easily cause tripping or burn out of the power mains, and it may even cause fire.
Link: Autumn and winter season high quality switch selection guide
During the renovation, selecting the wires, conduits, and switches is a matter of safety at home. The following three points are for your reference when purchasing.
Copper core wire is the first choice for fire protection, maintenance and safety, the best choice of copper wire, the area is generally: 2 × 2.5 mm as the main line, trunk, 2 × 1.5 mm as a single electrical branch, switch line. The grounding line uses green and yellow color lines, and the switch line (FireWire) uses any one of red, white, black, and purple. The rules for using threads in the same home improvement project should be the same.
The application of flame-retardant PVC pipe PVC pipe line pipe wall surface should be smooth, wall thickness requirements to reach the strength of the finger does not break the pinch, and should have a certificate of compliance. Can also use the national standard galvanized pipe for threaded pipe.
Switch size should be consistent with the size of the junction box Switch surface should be smooth, there are obvious brand signs and anti-counterfeit signs; switch to open when you want to feel flexible, secure sockets, copper to have a certain thickness; panel material should have flame retardant and solid The switch height is generally 1200 to 1350 mm, and is 150 to 200 mm from the edge of the door frame.
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