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How to judge the quality of electronic harness?
Electronic harness is the abbreviation of internal wiring of electrical equipment. Its electrification is mainly weak current, which is different from cables in strong electric field. There are three series of electronic harnesses: UL standard, 3C standard and VDE standard. AWG is usually UL standard, and the square of cross section is usually 3C standard or VDE standard. Domestic electronic harness manufacturers are mainly concentrated in 3C or UL.
1、 Try to choose products that meet the specification requirements. Wire and cable are listed as national compulsory safety certification commodities. All production companies must obtain the "CCC" mark certified by the China Electrotechnical Commodity Certification Commission, and mark the "CCC" certification mark on the goods and certificates. For export commodities, please pay attention to the UL standards of the United States and the RoHS requirements of the European Union.
2、 From the perspective of function and specification, it is really not a simple thing to choose the right one for you from hundreds of messy electronic harnesses. However, it is not difficult from the practical experience. It can be summarized as two steps: lead the way, learn from peers, learn from peers' practices, and launch products first.
Constantly optimize the practices of peers to make your choice more suitable for your products in terms of cost, function and environmental protection requirements. Of course, you can simplify the complexity and directly consult our customer service. He will be willing to provide his own professional advice for you to choose.
3、 The appearance of the product is smooth and round, and the color is uniform. For wire and cable companies whose products meet the requirements of national standards, in order to improve the product quality and ensure that the products meet the requirements of national standards, the procurement of raw materials, production equipment and production processes is strictly inspected.
Therefore, the appearance of the wire and cable products produced meet the requirements of the specification: lubrication, roundness and uniform color. The appearance of fake and inferior goods is rough and dull. For rubber insulated flexible cables, the appearance is required to be round, the sheath, insulation and conductor are tight and not easy to peel. However, fake and shoddy goods have rough appearance, large ovality and low insulation strength of sheath, which can be removed by hand.
4、 Whether the conductor has luster, DC resistance, conductor structure and dimension, etc. Meet the requirements of national standards. Wire and cable products that meet the requirements of national specifications, whether aluminum data wire or copper data wire, are relatively bright and free of oil pollution, so the DC resistance of the wire completely meets the national specifications.
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