Wire and cable quality identification_Anhui Honglin Instrument Cable Co., Ltd.

Wire and cable quality identification

Author：hlyb Add Time：2016-03-09 16:00:52

The purchased wires shall be purchased from regular manufacturers, and the national electrician certification mark and the trademark, specification, voltage, etc. printed on the wires shall be recognized.

standard

1. Wires with good weight and quality are generally within the specified weight range.

2. The copper core of qualified copper wire shall be purplish red, shiny and soft. The copper core of fake and shoddy copper core wire is purple black, yellow or white, with many impurities, poor mechanical strength and poor toughness. It will break with a little force, and there are often wire breaks in the wire. During the inspection, you just peel 2cm off one end of the wire, and then rub it on the copper core with a piece of white paper. If there is black material on the white paper, it indicates that there are many impurities in the copper core. In addition, the insulation layer of fake and shoddy wires seems very thick. In fact, most of them are made of recycled plastic. Over time, the insulation layer will age and leak electricity.

3. Fake and shoddy wires are often "three no products", but they also have ambiguous origin and other marks, such as made in China, made in a province or city in China, which is actually equal to the unmarked origin.

4. Price because the production cost of fake and shoddy wires is low, vendors often sell at low prices under the guise of low price and good quality

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Wire and cable quality identification