1. Look at the quality certificate of home appliances
If the quality of the home appliance is up to standard, then the quality of the power cord of the home appliance should also have been inspected and there won't be any major problems.
2. Check the cross section of the wire
For the cross-section of the wire, the surface of the copper core or aluminum core of the qualified product should have a metallic luster. Copper with a black surface or aluminum with a white surface indicates that it has been oxidized and is an unqualified product.
3. Look at the appearance of the power cord
The insulation (sheath) layer of qualified products is soft, tough and stretchable, and the surface layer is tight, smooth, non-rough, and has pure gloss. The surface of the insulation (sheath) layer should have clear and scratch-resistant marks. For products produced from informal insulation materials, the insulation layer feels transparent, brittle, and has no toughness.
4. Look at the core of the power cord
The wire core is produced from pure copper raw materials and has been strictly drawn, annealed and twisted. Its surface should be bright, smooth, burr-free, tightly twisted, soft and tough, and not easy to break.
5. Look at the length of the power cord
Different electrical appliances require different lengths of power cords. It is best for decoration owners to know the length of qualified power cords before purchasing, so that they can be well aware of when purchasing electrical appliances.
In order to ensure the normal use of home appliances and the safety of living in them, when purchasing home appliances, decoration owners must pay attention to the selection of power cords and carefully check their quality. If the quality of the power cords is not up to standard, it is best not to purchase this home appliance to avoid causing damage to the home appliances. Bringing trouble to oneself.