About how to buy automotive wiring harness

As the secondary carrier of power transmission, wires and cables are widely used in electrical equipment, lighting circuits, household appliances, etc. Their quality indirectly affects the quality of projects and the safety of consumers' lives and wealth. There are many types of wires on the market, so you should use appropriate wires according to your electrical load. Some of the wires sold in the market are cheap and some are more expensive, and some people often compare the cheap wires first. However, many cheap wires often fail to meet the functions he explained, and some of them can bring many safety hazards to me. The consumer technology content of wires is not too high, and there is not much difference in the original materials. If there are too many cheap ones, corners are cut, or the quantity is not enough. So how to identify it. Let me tell you some ways that are easier to identify:

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1. Look at the packaging. The national standard wires are often better, neat and have a sense of quality when held in your hand. 2. Open the package and have a look at the wires inside. The national standard wire of 1.5--6 square meters requires that the skin thickness (insulation thickness) is 0.7 mm. If it is too thick, it is non-standard. Correspondingly, its inner core is definitely not enough. You can pull the wire skin hard. What is not easy to tear is generally the national standard. 3. Burn it with fire, and it will be extinguished within 5s after leaving. Those with certain flame retardant function are the national standard wire. 4. Look at the inner core. The higher the brightness of the material (copper) of the inner core, the better the copper, and the luminosity is uniform, shiny and has no sense of layering. The national standard requires that the inner core must be oxygen-free copper. Non-standard, such as black pole copper, may have hidden dangers of accidents. 5. Countries have certain requirements for the thickness of the inner core, but they are not very strict. But there won't be many mistakes, just a small bit of error, which is generally invisible to the eye. 6. Length. The state does not force rice to be beaten, but many manufacturers have also beaten rice. The beaten rice is not necessarily the national standard, but the general national standard generally does not beat rice. Non-standard beating rice is just a means. 7. The state stipulates that certain marks must be marked on wires, and the next same mark will be marked if the maximum does not exceed 500mm. Generally, there are product trademarks, manufacturer names, implementation standards, etc. on them. You are welcome to learn from the above cable purchase methods, and the same is true for the purchase methods of automotive wiring harnesses.

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