Methods for Identifying Power Cords
Release time:
2023-08-28
Source:
Internet
1. Check the appliance’s certificate of quality compliance.
If the appliance meets quality standards, its power cord should also have been inspected and should not present significant issues.
II. Inspect the cross-sectional area of the electrical wires
The cross-section of the wire: the copper or aluminum conductor of a qualified product should have a metallic sheen. Copper that appears blackened or aluminum that has turned whitish indicates oxidation and signifies a non‑conforming product.
III. Examine the appearance of the power cord
Qualified products feature an insulation (jacket) layer that is soft, resilient, and highly flexible; its surface is dense, smooth, free of roughness, and exhibits a genuine sheen. The insulation (jacket) layer should bear clear, abrasion‑resistant markings. Products manufactured with substandard insulation materials, by contrast, exhibit an overly transparent appearance, brittleness, and a lack of resilience.
IV. Examine the conductor of the power cord
The conductor is manufactured from high-purity copper and undergoes rigorous processes including wire drawing, annealing, and stranding. Its surface shall be bright, smooth, free of burrs, with tightly and evenly stranded strands, and exhibit softness, flexibility, and resistance to breakage.
V. Check the length of the power cord
Different appliances require power cords of varying lengths. Before making a purchase, homeowners should first determine the standard length of a qualified power cord, so they can make an informed choice when selecting their appliances.
To ensure the proper functioning of home appliances and residential safety, homeowners should pay close attention to the selection of power cords when purchasing appliances, carefully inspecting their quality. If a power cord fails to meet quality standards, it’s best to avoid buying that appliance to prevent potential problems.
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