The wiring harness is a weak cable, which is the internal connecting wire of electrical equipment. At present, wire harnesses on the market mainly adopt 3C, VED, UL standards.
The wire harness is used for the internal connection of the appliance, so its conductive function is very important. If the harness current is unstable, the performance of the appliance will be unstable. Therefore, you must pay attention to this when buying. Let's see what a high-quality wiring harness looks like:
1. Smooth surface, no black line, no chaotic line, no pitting, no oxidation, no smudge, no scratches, no tin plating (sticky tin, leaking tin), no slash, no hand joint, No fingerprints.
2. The surface of the copper wire is not sticky after the terminal wire is rolled (overfilled)
3. The tension of the terminal wire is moderate but loose or too tight.
4, the wire harness is good, uniform, no stacking, underside (low side of the side or low side of the two sides), no stocks.