Why Do Wires And Cables Have Many Colors? What's The Difference?
Nov 27, 2021
Wire and cable color coding and its meaning:
In daily life, cables are not commonly used, but wires are really commonly used, and when buying wires, you will find that there are many colors? The outermost layer of the wire is called the insulating layer. Wires generally have six colors, red, yellow, blue, green, black and yellow green. In the process of using, we generally use red, yellow and green wires as live wires, blue wires as zero wires and two-color wires as ground wires to avoid our human body accidentally touching the current of the circuit and being hurt by voltage.

Different colors are specified for different cables, which can be better distinguished during construction and prevent wrong operation. If it is not implemented according to the routine, there will be potential safety hazards in the future use and maintenance process. If the fault is not repaired by the original construction master, it is difficult to distinguish the live line and zero line, which brings inconvenience to the maintenance and is easy to cause construction safety accidents. Install wires according to the specified color, we can clearly see the live wire, zero wire and ground wire, and reduce the possibility of wrong connection in the line.

Wire and cable color usage specifications and precautions:
Using correctly color-coded wires can avoid electrical installation errors and reduce the risk of electric shock. Color coding makes it easy to identify and track wires, facilitating maintenance and troubleshooting.
Maintenance personnel can quickly understand the purpose and connection of wires through color, improving work efficiency. When performing electrical installation, you must follow local electrical specifications and standards to ensure that the correct color coding is used.
Standards in different countries and regions:
The color coding standards for wires and cables may vary from country to country or region. Here are some common standards
1. National Electrical Code (NEC) of the United States
Phase: black, red, blue
Neutral: white
Ground: green or bare copper
2. International Electrotechnical Commission (IEC)
Phase: brown, black, gray
Neutral: blue
Ground: yellow and green
3. BS 7671 (IET Wiring Regulations) of the United Kingdom
Phase: brown
Neutral: blue
Ground: yellow and green
In the home decoration construction, we must find a professional electrician to lay the line. At the same time, if conditions permit, in order to improve the safety of the home circuit, we can use low smoke halogen-free flame retardant cable as the home decoration wire. Hongzhou cable uses high-purity oxygen free copper as the core to prevent overload, and uses environmental protection materials as insulation, which greatly reduces the risk of leakage and short circuit, and strictly implements national standards, which can improve the use efficiency of wires and ensure our life safety.
We are a trading company under Haiyan County Sheng'an Electric Co., Ltd., with superior geographical location and convenient transportation. We are mainly engaged in the production, research and development and sales of wires and cables, finished product inspection, packaging quality inspection, pre-delivery inspection, and pre-delivery inspection to ensure that the product qualification rate is 100%. We adhere to the principle of "cooperation, harmony, development and win-win". Since its establishment in 2012, the company has been adhering to the business philosophy of "customer first, forge ahead" and insisting on providing customers with high-quality services. In August 2019, it was officially renamed Jiaxing Hongzhou Cable Co., Ltd.

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