Identify the quality of power cords

1、 If the quality certificate of the household appliance is qualified, then the quality of the power cord of the household appliance should also have been inspected and there should not be too many problems.

2、 Check the cross-section of the wire. The surface of the copper or aluminum core of a qualified product should have a metallic luster. Copper with a blackened surface or aluminum with a white surface indicates oxidation and is an unqualified product.

3、 The appearance of the power cord is qualified. The insulation (sheath) layer of the product is soft, tough, and stretchable, and the surface layer is tight, smooth, without roughness, and has pure glossiness. The surface of the insulation (sheath) layer should have clear and scratch resistant marks. Products produced with non-standard insulation materials have a transparent, brittle, and non tough insulation layer.

4、 The core of the power cord should be made of pure copper raw material and undergo strict drawing, annealing, and twisting. Its surface should be bright, smooth, free of burrs, tightly twisted, flat, soft and tough, and not easily broken.

5、 Depending on the length of the power cord, different appliances require different lengths of power cords. Before purchasing, homeowners should first understand the length of a qualified power cord, so that they can have a clear idea when choosing appliances.