1、 Check the quality certificate of household appliances
If the quality of the household appliance is qualified, then the quality of the power cord of the household appliance should also be inspected and there should be no major problems.
2、 Check the cross-section of the wires
The cross-section of the wire and the surface of the qualified copper or aluminum core should have a metallic luster. Copper or aluminum with a blackened surface indicates oxidation and is considered a non-conforming product.
3、 Check the appearance of the power cord
The insulation (sheath) layer of qualified products is soft, flexible, and has good elasticity. The surface layer is tight, smooth, without roughness, and has a pure glossiness. The surface of the insulation (sheath) layer should have clear and scratch resistant markings. Products produced with non-standard insulation materials have a transparent, brittle, and non ductile insulation layer.
4、 Check the core of the power cord
The wire core produced using pure copper raw materials and subjected to strict wire drawing, annealing, and stranding should have a bright, smooth, burr free surface, flat stranding tightness, softness, toughness, and not easily broken.
5、 Check the length of the power cord
Different appliances require different lengths of power cords. Decoration owners should first understand the length of qualified power cords before purchasing, so that they can have a clear understanding when choosing appliances.
In order to ensure the normal use and residential safety of home appliances, decoration owners must pay attention to the selection of power cords and carefully check their quality when choosing home appliances. If the quality of the power cords is not qualified, it is best not to choose this home appliance to avoid causing trouble to themselves.