How to identify the quality of the power cord

First, look at the quality certificate of home appliances

If the quality of the home appliance is qualified, then the quality of the power cord of the home appliance should also be tested, and there will be no major problems.

Second, check the cross-section of the wire

In the cross-section of the wire, the surface of the copper or aluminum core of the qualified product should have a metallic luster, and the surface of copper with black or white aluminum indicates that it has been oxidized and is a defective product.

Three, look at the appearance of the power cord

The insulation (sheath) layer of a qualified product is soft, flexible, and flexible, and the surface layer is tight, smooth, without roughness, and has a pure gloss. The surface of the insulation (sheath) layer should have clear and abrasion-resistant signs. For products made with non-standard insulation materials, the insulation layer feels transparent, brittle, and non-tough.

Fourth, look at the core of the power cord

Choose from pure copper raw materials and undergo stringent drawing, annealing, and twisting. The surface of the wire core should be bright, smooth, without burrs, smooth twist tightness, soft and tough, and not easy to break.

Fifth, look at the length of the power cord

The length of the power cord required by different appliances is different. The decoration owners are advised to understand the length of the qualified power cord before purchasing so that they can be sure when buying electrical appliances.

Rubber plastic soft power cord structure

1) Conductor core: copper core, flexible structure, twisted by multiple single wire bundles; flexible wire conductor generally adopts type 5 or type 6 conductor structure. 2) Insulation: Insulating materials generally use natural styrene-butadiene rubber, polyvinyl chloride, or soft polyethylene pla...