The right choice for wire and cable is very important
Because wire and cable products are closely related with the life of the majority of consumers, the pros and cons of the quality, safe or not directly affect the personal and property safety of consumers, so the right choice for wire and wholesale hdmi cable is very important.
1. View "CCC" certification logo
Because wire and cable products are national compulsory safety certification products, all producers must obtain "CCC" certification certified by China Electrotechnical Certification Committee, which have "CCC" certification mark on the certificate or product.
2. See inspection report
Wire and cable have been listed as the focus of government supervision and inspection as the products impact personal and property safety. The regular electrical wire supplier accept supervision departments checking by cycle. Therefore, vendors should be able to provide quality inspection departments report, otherwise, whether the product quality is good or bad lacks of basis.
3. Emphasis on packaging
Wire and cable products packaging is the same with other products, the large and medium-sized enterprises which produce products to meet the formal requirements of national standards, their wires and cables attach great importance to product packaging. Pay attention that the packaging should be beautifully, clear printing, model specifications, name and address are complete at the purchase.
4. See the appearance, the product appearance is smooth and rounded, uniform color
The wire and cable enterprises whose products meet national standards are strict in the purchase of raw materials, production equipment, production process, in order to improve the quality of products and ensure that products to meet national standards. Therefore, the appearance of wire and cable products produced by them meets the standard requirements: smooth and rounded, uniform color. And the appearance of counterfeit and inferior products is rough and dull. For rubber insulated flexible cable, the requirement is rounded appearance, sheathing, insulation, conductor are tightly, difficult to peel. Counterfeit and substandard products look rough, big ovality, low jacket insulation strength can be torn off by hands.
5. View the conductor, conductor has luster, the DC resistance and the conductor structure size meet the requirements of national standards
The wire and cable products meet national standards, whether it is the aluminum material conductor, or copper material conductor, are relatively bright, no oil spill, and thus the DC resistance of the conductor is in full compliance with national standards, which has good electrical conductivity and high security.
6. Measure the length
The length is the main intuitive method to distinguish products that meet the requirements of national standards and fake and poor quality products. At the time of purchase, do not covet cheap to buy 90m or 80m, or even wire and cable length without identified length. The length must comply with 100ʿ0.5m standard requirements, i.e., 100m as the standard, and the allowable error is 0.5 meters.
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