Hebei Dagang cable tells us how to identify the quality of wire:

1. the general quality of wire is within the specified weight range.

2. copper conductor with qualified copper conductor shall be purplish red, lustrous and hand. The and inferior copper core is usually atropurpureus, partial or pianbai, more impurities, poor mechanical strength, toughness is not good, slightly hard will be broken, and some wires are often broken. When inspection, you just peel the wire first 2 cm, then use a piece of paper in the copper core slightly rub, if the black material on paper, the copper core is more impurities. In addition, the insulation layer looks very thick, but most of the actual use is made of recycled plastic, a long insulation layer will aging, so electricity leakage.

3. manufacturers fake and fake wires are generally three products, but the above products are identified, such as China made, which is actually a feiguobiao.

4. because the cost of the production of fake and inferior wires is low, the vendors are often sold at low prices under the guise of cheap and cheap prices when selling.