Wire and cableThe quality of the product is closely related to the safety of its use. When purchasing cables, it is necessary to buy qualified wires and cables. Let me introduce how to distinguish the quality of cables:

1. Upon closer inspection of the trademark printing sample, the handwriting is blurry and the address is unknown. It refers to looking at the printed words on the label and insulation skin. If there are spelling errors, uneven printing depth, or blurry words, attention should be paid.

2. Rubbing the insulation skin by hand may result in color fading and poor quality. It refers to rubbing the insulation outer layer with fingers. Some low-quality insulation wires are prone to color fading, especially red wires. After rubbing, the color of the wire skin left on the fingers or the words printed on the wire skin are usually erased, indicating poor quality wires.

3. Then use your nails to scratch and pinch the thread, as well as cut and remove the skin line. It refers to using nails to scratch and pinch the insulation outer layer, and the piece that can be scratched or pinched off is usually a low-quality wire.

4. Repeatedly bend the insulated wire, and it will break three to four times. It refers to repeatedly bending insulated wires. Poor quality wires usually have poor insulation materials, and after bending 3-4 times, their insulation layer will break.

5. Ignite the insulation of the wire with fire and leave the live wire to self ignite. It refers to the inferior wire that ignites the insulation layer and can self ignite after leaving the open flame.

6. Aluminum and copper are commonly used for wire cores, which have a darker color and lighter luster. It refers to the color of the wire core. Poor quality wire has a dull color and no metallic luster.