1依导线颜色标志电路时
When the circuit is marked according to the wire color
1．1黑色：装置和设备的内部布线。
1.1 Black: internal wiring of devices and equipment.
1．2棕色：直流电路的正极。
1.2 Brown: positive pole of DC circuit.
1．3红色：三相电路和C相；
1.3 Red: three phase circuit and C phase;
半导体三极管的集电极；
The collector of semiconductor triode;
半导体二极管、整流二极管或可控硅管的阴极。
The cathode of a semiconductor diode, rectifier diode, or thyristor.
1．4黄色：三相电路的A相；
1.4 yellow: phase a of three-phase circuit;
半导体三极管的基极；
The base of semiconductor triode;
可控硅管和双向可控硅管的控制极。
The control pole of thyristor and bidirectional thyristor.
1．5绿色：三相电路的B相。
1.5 green: phase B of three-phase circuit.
1．6蓝色：直流电路的负极；
1.6 blue: negative pole of DC circuit;
半导体三极管的发射极；
Emitter of semiconductor triode;
半导体二极管、整流二极管或可控硅管的阳极。
Anode of semiconductor diode, rectifier diode or thyristor.
1．7淡蓝色：三相电路的零线或中性线；
1.7 light blue: zero line or neutral line of three-phase circuit;
直流电路的接地中线。
Ground neutral of DC circuit.
1．8白色：双向可控硅管的主电极；
1.8 white: main electrode of bidirectional thyristor;
无指定用色的半导体电路。
Semiconductor circuit without specified color.
1．9黄和绿双色（每种色宽约15~100毫米交替贴接）；用的接地线。
1.9 yellow and green color (each color is about 15 ~ 100 mm wide, alternately attached); safety grounding wire.
1．10红、黑色并行：用双芯导线或双根绞线连接的交流电路。
1.10 red and black parallel: AC circuit connected by twin conductor or twisted pair.
2依电路选择导线颜色时
2. When selecting the wire color according to the circuit
2．1交流三相电路的A相：黄色；
2.1 phase a of AC three-phase circuit: yellow;
B相：绿色；
Phase B: green;
C相：红色；
Phase C: red;
零线或中性线，淡蓝色；
Zero line or neutral line, light blue;
用的接地线：黄和绿双色。
Safety ground wire: yellow and green.
2．2用双芯导线或双根绞线连接的交流电路：红黑色并行。
2.2 AC circuit connected with twin conductor or twisted pair: red and black in parallel.
2．3直流电路的正极：棕色；
2.3 positive pole of DC circuit: Brown;
负极：蓝色；
Blue: negative electrode;
接地中线：淡蓝色。
Neutral grounding line: light blue.
2．4半导体电路的半导体三极管的集电极：红色；
2.4 collector of semiconductor triode of semiconductor circuit: red;
基极：黄色；
Base: yellow;
发射极：蓝色。
Emitter: blue.
半导体二极管和整流二极管的阳极：蓝色；
Anode of semiconductor diode and rectifier diode: blue;
阴极：红色。
Cathode: red.
可控硅管的阳极：蓝色；
Anode of thyristor: blue;
控制极：黄色；
Control pole: yellow;
阴极：红色。
Cathode: red.
双向可控硅管的控制极：黄色；
Control pole of bidirectional thyristor: yellow;
主电极：白色。
Main electrode: white.
2．5整个装置及设备的内部布线一般：黑色；
2.5 the internal wiring of the whole device and equipment is generally recommended: black;
半导体电路：白色；
Semiconductor circuit: white;
有混淆时：容许选指定用色外的其它颜色（如：橙、紫、灰、绿蓝、玫瑰红等）。
In case of confusion: it is allowed to choose other colors (such as orange, purple, gray, green blue, rose, etc.) other than the specified colors.
2．6具体标色时，在一根导线上，如遇有两种或两种以上的可标色，视该电路的特定情况，依电路中需要表示的某种含义进行定色。
2.6 for specific color marking, if there are two or more kinds of color marking on a wire, the color shall be determined according to the meaning of the circuit according to the specific situation of the circuit.
注：对于某种产品（如船舶电器）的母线，如国际上已有指定的国际标准，且与第2.1和2.3条的规定有差异时,亦允许按该国际标准所规定的色标进行标色。
Note: for the bus bar of certain products (such as marine electrical appliances), if there is a specified international standard in the world and there is a difference with the provisions of Article 2.1 and 2.3, it is also allowed to be colored according to the color code specified in the international standard.
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