Electrical Wiring Color Code Standards China

By | April 18, 2021



Understanding the Electrical Wiring Color Code Standards in China



Electrical wiring is essential for any home or building, and safety is key. This is why each country has its own specific electrical wiring color code standards. In China, the wiring color code standards are broken down by both usage and voltage strength. It can be difficult to understand these color codes and how they apply to a particular job, so it’s important to take a comprehensive look at the regulations.



Wiring Color Coding by Usage



In China, the wiring colors you’ll see when working on an electrical project will depend on the type of wiring you’re using. There are two primary types: power and control. The color codes for power wiring are as follows: black is live, white is neutral, red is live single phase, and blue is live three-phase. Control wiring is colored green, yellow, and brown.



Voltage Strength Coding



The color coding for electrical wiring also takes into account the potential voltage for a particular job. High voltage wiring, which is over 600 volts, is coded yellow with three different stripes. Then there’s medium voltage wiring, with potentials of between 600 and 11,000 volts. These wires are coded black with either one or two red stripes. Low voltage wiring is coded blue with three white stripes.



Additional Regulations



In addition to these specific color coding rules, there are some additional regulations to consider. Fire-resistant cables must have yellow insulation and be marked with a flame symbol. And when working with sheathed cables, the outer sheath should be marked with a distinct color as a warning. Finally, there should also be a document attached to the body of any electrical device that provides comprehensive information about the color code standards used within it.



Conclusion



When it comes to electrical wiring color code standards in China, there are some unique guidelines you must follow. As always, safety should be your number one priority when it comes to electrical projects. By understanding the usage and voltage strength coding used in China, you can ensure a safe and successful job every time.


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