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About UsHongsheng Wire and Cable Co., Ltd. is a key enterprise in Zhejiang Province specializing in the production of wires and cables, integrating industry, commerce, trade, production, education, and research. Its main production, processes, and testing equipment are all designed and configured according to international standards.
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ProductsEmploy scientific management and quality assurance systems based on GB/T19001—IS09001 and GB/T24001—ISO14001 environmental management systems to organize production management.
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Contact UsWe believe: Great achievements depend on quality. Your satisfaction is our eternal pursuit!
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Cable: What do the colors on the wire and cable mean?
Everyone knows that the wires inside a cable have different colors. What are these colors for? Let me introduce the meaning of the colors on the cable below. Cable Sheath Color Regulations for Cable Conductor Sheath Colors National Standard: Yellow, green, red, and blue represent a, b, c, and n. When the circuit is marked by the color of the conductor: 1.1 Black: Internal wiring of devices and equipment. 1.2 Brown: Positive pole of DC system circuit. 1.3 Red: Three-phase circuit and C phase
Everyone knows Cable Several wires inside have different colors. What are these colors for? Let's introduce the meaning of the colors on the cable below.
Cable Cable Sheath Color Regulations
National Standard: Yellow, green, red, and blue represent a.b.c.n
When the circuit is marked by the color of the conductor
1.1 Black: Internal wiring of devices and equipment.
1.2 Brown: Positive pole of DC system circuit.
1.3 Red: Three-phase circuit and C phase
Collector electrode of semiconductor transistor ;
Cathode of semiconductor diode, rectifier diode, or thyristor.
1.4 Yellow: Phase A of three-phase circuit;
Base of semiconductor transistor;
Control electrode of thyristor and bidirectional thyristor.
1.5 Green: Phase B of three-phase system circuit.
1.6 Blue: Negative pole of DC circuit;
Emitter of semiconductor transistor ;
Anode of semiconductor diode, rectifier diode, or thyristor.
1.7 Light blue: Neutral wire or neutral line of three-phase circuit;
Grounding neutral wire of DC circuit.
1.8 White: Main electrode of three-terminal bidirectional thyristor switch;
Semiconductor display circuit without specified color.
1.9 Yellow-green (each color approximately 15 mm wide, alternating 100 mm); Safety grounding wire.
1.10 Red and black parallel: AC circuit connected to two-core conductor or stranded wire.
2 When selecting wire color according to the circuit
2.1 Three-phase AC circuit
A phase: Yellow;
B phase: Green;
C phase: Red;
Neutral wire or neutral line, light blue;
Safety grounding wire : Yellow and green.
2.2 AC system circuit connected with two-core wire or two-core stranded wire: Red and black in parallel.
2.3 DC circuit
Positive pole: Brown;
Negative pole: Blue;
Grounding neutral wire: Light blue.
2.4 Semiconductor circuit semiconductor transistor
Collector: Red;
Base: Yellow;
Emitter: Blue.
Semiconductor diode and rectifier diode
Anode: Blue;
Cathode: Red.
Thyristor
Anode: Blue;
Control electrode: Yellow;
Cathode: Red.
Bidirectional thyristor
Control electrode: Yellow;
Main electrode: White.
2.5 Internal wiring of the entire factory and equipment is generally recommended: Black;
Semiconductor circuit: White;
In case of confusion : In addition to the specified colors (such as orange, purple, gray, green, blue, rose red, etc.), they are allowed.
2.6 When specifically marking colors, if two or more colors can be marked on one wire, the color should be determined according to the specific situation of the circuit and the meaning to be expressed in the circuit.
If you like Follow Hongsheng Wire and Cable Co., Ltd., hoping to help everyone. Hongsheng Wire and Cable Co., Ltd. specializes in the production of power cables Copper core wires, wires 、 Cable 、 Copper core cables Good product quality and guaranteed, welcome to negotiate!
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