2. If the weight of the conductor is too light, it should be normal. The qualified conductor weight of 2.5 square meters should be 3kg per 100 meter, and the error should not exceed 0.2kg. If the weight error of the conductor bought is too large, there must be the behavior of cutting corners, and such conductor should not be used.
Extended data:
The illegal production of wires and cables is mainly reflected in the following five aspects:
First, unlicensed production, including unlicensed production, 3C certification, out-of-range production and other illegal acts.
Second, counterfeit famous products, including counterfeit factory name and address, counterfeit national (domestic) provincial (local) famous brands, counterfeit well-known (famous) trademarks, counterfeit registration marks and counterfeit certification marks.
The third is adulteration. In recent years, due to the high price of heavy metals, some enterprises use copper-clad aluminum, copper-clad iron, copper-clad steel, or even copper-clad inferior copper in order to ensure profits.
The fourth is to shrink and slim down. Some production enterprises use unscrupulous means to reduce production costs and deliberately cut corners, with a few short feet. Some buy finished conductors according to the acceptance criteria. After entering the factory, the equipment is stretched, the conductor is thinned or twisted, and the cross-sectional area is reduced, resulting in an increase in resistance and disqualification. Others directly make a fuss about the quantitative packaging of cables, set the length and deduct consumers.
People's Network-When using electricity safely, it is very important to carefully check the quality of wires.
People's Network-Expert: Beware of wire and cable counterfeiting