What do the red, yellow and green wires mean?

- Nov 21, 2018 -

1, according to the wire color marking circuit


Black - internal wiring of devices and equipment.


Brown - the positive pole of the DC circuit.


Red - phase C of a three-phase circuit;


a collector of a semiconductor transistor;


A cathode of a semiconductor diode, a rectifier diode, or a thyristor.


Yellow - phase A of a three-phase circuit;


The base of the semiconductor transistor;


The control pole of the thyristor and the triac.


Green - Phase B of a three-phase circuit.


Blue - the negative pole of the DC circuit;


The emitter of a semiconductor transistor;


The anode of a semiconductor diode, rectifier diode or thyristor.


Light blue - the neutral or neutral of a three-phase circuit; the grounded neutral of a DC circuit.


white


The main electrode of the triac; no semiconductor circuit of the specified color.


Yellow and green two colors (each color is about 15 to 100 mm alternately attached) - a safe grounding wire.


Red and black parallel—AC circuits connected by two-core wires or two twisted wires.

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