Fire line (indicated by L): red, yellow and green.
Zero line (represented by n): blue.
Ground wire (denoted by E): yellow and green.
When decorating the home, it is suggested that only one of the three colors, yellow, green and red, should be selected for the firewire. It should be noted that the live wire must be red, the zero wire should be blue, and the ground wire should be yellow and green as required.
If there is a voltage of 380V at home, then all three colors of fire wires should be selected. At this time, we can choose yellow, green and red according to the circuit, and use these three colors to distinguish different circuits.
What are the advantages of wire color?
National standards require different cables to use different colors (in different countries), mainly to correctly distinguish the phase wire, zero wire and protective ground wire in conductors and prevent misoperation. General electricians will separate colors according to requirements.
If the wire color is used at will, there will be potential safety hazards in the future use and maintenance. For example, in order to facilitate and save materials, the yellow wire is used as the live wire and the zero wire. In the future maintenance, it is difficult for electricians to find out the live line and the zero line, which brings inconvenience to maintenance and easily leads to construction safety accidents.
Install the wires according to the specified color, you can clearly see the live wire, neutral wire and ground wire, reduce the possibility of wrong wire connection, facilitate future maintenance, avoid misoperation caused by unclear wires, and play a very good role in protecting people.
Therefore, the color separation of wires in the line is very important, and the wires must be separated in the home decoration. If there is no uniform color separation for the installed lines, it is suggested to mark the lines separately and clearly mark them on the circuit diagram for future reference.