It is reported that the cable is an essential material for users in the process of electricity, its quality is good or bad, directly related to the safety of thousands of households with electricity. Shoddy cables may cause damage to electrical lines, leakage, fires and so on. But sometimes the "fake" cable disguised as realistic, not the power staff or cable manufacturing personnel can not really distinguish.
That the actual use of how we should identify, to prevent falling for it? Here are a few tips to identify, I hope it can help you.
1. With Fire
Poor quality cable with fire will burn quickly, with open flames and smoke. And good quality cable burning slowly, with a small amount of smoke or no smoke, no open flame.
2. Check The Packaging
There are signs on the cable insulation layer, such as cable specifications, 3C certification, etc., and the handwriting is clear, generally wash off, not to rub off. There is a certificate of conformity in the cable circle, the certificate of conformity has the manufacturer's address telephone, 3C mark, quality system certification, voltage level, wire type specifications, etc., while there is no or missing items on the poor quality wire.
3. Look At The Copper Quality
The higher the copper brightness the better the copper quality, and uniform luminosity, glossy, no hierarchy. Qualified cable copper core should be purple-red, lustrous, soft to the touch. If you can peel off a small section of plastic outer skin, look carefully inside the copper wire, touch the top of the copper wire with your palm, the feeling should be flat and no tingling sensation, the feel is softer.
The shoddy cable copper core is purple-black, yellowish or white, impurities, poor mechanical strength, toughness, a little force ute will break, and the cable is often broken line phenomenon. Check, you just need to strip the wire 2 cm, and then use a piece of white paper on the copper core slightly rubbed, if the white paper has black material, the copper core impurities more.
In addition, shoddy wire insulation layer seems to be very thick, in fact, most of them are made of recycled plastic, over time, the insulation layer will be aging and leakage.
4. Look At The Insulation
Intercept a piece of wire to see whether the core is located in the insulation layer. Not centered is due to the process is not high and caused by the phenomenon of partial core, in use if the power is small can also be safe, once the power, the thinner side is likely to be current breakdown
5. Hands-On Test
Can take a cable connector bending repeatedly by hand, where the feel of soft, good fatigue strength, plastic or rubber feel elastic and no cracking on the cable insulation is superior, otherwise it is inferior.
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