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2, the positive pole of the brown DC circuit.
3, red three-phase circuit and C phase;
Collector of a semiconductor transistor;
The cathode of a semiconductor diode, rectifier diode, or thyristor.
4, A phase of the yellow three-phase circuit;
The base of a semiconductor transistor;
Thyristor and triac control poles.
5. Phase B of the green three-phase circuit.
6, the negative pole of the blue DC circuit;
The emitter of a semiconductor transistor;
The anode of a semiconductor diode, rectifier diode, or thyristor.
7, light blue three-phase circuit of the neutral or neutral;
DC circuit grounded neutral.
8, the main electrode of the white triac;
There is no specified color semiconductor circuit.
9, yellow and green colors (each color width of about 15 to 100 mm alternately attached)
Safety ground wire.
10. Red and black AC circuits connected with dual-core conductors or double stranded conductors in parallel.
When the conductor color is selected according to the circuit 1, A phase of the AC three-phase circuit: yellow;
Phase B: green;
Phase C: red;
Neutral or neutral: light blue;
Safety ground wire: yellow and green.
2. AC circuit connected with double-core wire or double-strand wire:
Red and black in parallel.
3, DC circuit:
Positive: Brown;
Negative electrode: blue;
Grounded neutral: light blue.
4, the collector of the semiconductor circuit semiconductor transistor: red; base: yellow; emitter: blue.
Anodes of semiconductor diodes and rectifier diodes: blue;
Cathode: Red.
SCR anode: blue;
Control pole: yellow;
Cathode: Red.
Bipolar thyristor control pole: yellow;
Main electrode: white.
5, the internal wiring of the entire device and equipment is generally recommended: black; semiconductor circuit: white; when there is confusion: allow the selected color other than the specified color (such as: orange, purple, gray, green blue, rose red, etc.).
6, when the specific color, on a wire, in case of two or more than two colors can be marked, depending on the specific circumstances of the circuit, according to the circuit needs to be expressed in a certain meaning fixed color.
A minute to understand what the color of the wire in an electrical device represents
1. Internal wiring of black devices and equipment.