1依導線顏色標志電路時
When the circuit is marked according to the wire color
1．1黑色：裝置和設備的內部布線。
1.1 Black: internal wiring of devices and equipment.
1．2棕色：直流電路的正極。
1.2 Brown: positive pole of DC circuit.
1．3紅色：三相電路和C相；
1.3 Red: three phase circuit and C phase;
半導體三極管的集電極；
The collector of semiconductor triode;
半導體二極管、整流二極管或可控硅管的陰極。
The cathode of a semiconductor diode, rectifier diode, or thyristor.
1．4黃色：三相電路的A相；
1.4 yellow: phase a of three-phase circuit;
半導體三極管的基極；
The base of semiconductor triode;
可控硅管和雙向可控硅管的控制極。
The control pole of thyristor and bidirectional thyristor.
1．5綠色：三相電路的B相。
1.5 green: phase B of three-phase circuit.
1．6藍色：直流電路的負極；
1.6 blue: negative pole of DC circuit;
半導體三極管的發射極；
Emitter of semiconductor triode;
半導體二極管、整流二極管或可控硅管的陽極。
Anode of semiconductor diode, rectifier diode or thyristor.
1．7淡藍色：三相電路的零線或中性線；
1.7 light blue: zero line or neutral line of three-phase circuit;
直流電路的接地中線。
Ground neutral of DC circuit.
1．8白色：雙向可控硅管的主電極；
1.8 white: main electrode of bidirectional thyristor;
無指定用色的半導體電路。
Semiconductor circuit without specified color.
1．9黃和綠雙色（每種色寬約15~100毫米交替貼接）；用的接地線。
1.9 yellow and green color (each color is about 15 ~ 100 mm wide, alternately attached); safety grounding wire.
1．10紅、黑色并行：用雙芯導線或雙根絞線連接的交流電路。
1.10 red and black parallel: AC circuit connected by twin conductor or twisted pair.
2依電路選擇導線顏色時
2. When selecting the wire color according to the circuit
2．1交流三相電路的A相：黃色；
2.1 phase a of AC three-phase circuit: yellow;
B相：綠色；
Phase B: green;
C相：紅色；
Phase C: red;
零線或中性線，淡藍色；
Zero line or neutral line, light blue;
用的接地線：黃和綠雙色。
Safety ground wire: yellow and green.
2．2用雙芯導線或雙根絞線連接的交流電路：紅黑色并行。
2.2 AC circuit connected with twin conductor or twisted pair: red and black in parallel.
2．3直流電路的正極：棕色；
2.3 positive pole of DC circuit: Brown;
負極：藍色；
Blue: negative electrode;
接地中線：淡藍色。
Neutral grounding line: light blue.
2．4半導體電路的半導體三極管的集電極：紅色；
2.4 collector of semiconductor triode of semiconductor circuit: red;
基極：黃色；
Base: yellow;
發射極：藍色。
Emitter: blue.
半導體二極管和整流二極管的陽極：藍色；
Anode of semiconductor diode and rectifier diode: blue;
陰極：紅色。
Cathode: red.
可控硅管的陽極：藍色；
Anode of thyristor: blue;
控制極：黃色；
Control pole: yellow;
陰極：紅色。
Cathode: red.
雙向可控硅管的控制極：黃色；
Control pole of bidirectional thyristor: yellow;
主電極：白色。
Main electrode: white.
2．5整個裝置及設備的內部布線一般：黑色；
2.5 the internal wiring of the whole device and equipment is generally recommended: black;
半導體電路：白色；
Semiconductor circuit: white;
有混淆時：容許選指定用色外的其它顏色（如：橙、紫、灰、綠藍、玫瑰紅等）。
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具體標色時，在一根導線上，如遇有兩種或兩種以上的可標色，視該電路的特定情況，依電路中需要表示的某種含義進行定色。
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：對于某種產品（如船舶電器）的母線，如國際上已有指定的國際標準，且與第2.1和2.3條的規定有差異時,亦允許按該國際標準所規定的色標進行標色。
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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