What brand of cable is good, what are the top ten brands of wires?
Mainly to distinguish the ground which is the ground, the color of the ground is generally yellow-green; wire two is the fire line L and zero line N, no ground wire, look at the plug on the LN mark, the corresponding good.
Power circuit box, the home of the circuit is divided into lighting, walls, air conditioning, etc., there is the bathroom and the kitchen line and the separation of the room.
If you are talking about the three-core wire, black - ground brown - line of blue - zero line. If it is 3 plugs, your wire is only 2 lines. Then the yellow received L, black received N. The above is the ground wire.
