Bagaimana untuk mengenal pasti kabel inferior?

Wire and cable are indispensable materials for the transmission of power energy, and is widely used in economic production, once the cable fails, it will not only threaten the safe and stable operation of the power grid, but also cause significant economic losses to families and society. Now there are a lot of unqualified cables in the market to disrupt the choice of consumers with fake and shoddy, and the following will introduce the identification method of concentrated inferior cables.

1. 1.Perhatikan dengan teliti pada cetakan label, perhatikan jika terdapat kesilapan taip atau warna cetakan yang berbeza, perkataan menjadi kabur.

2. 2. Putar kulit penebat dengan tangan, dan warna serta perkataan yang mudah dipadam biasanya adalah garisan yang lebih rendah.

3. 3. Gores dan cubit kulit penebat dengan kuku 。 Ia biasanya garisan bawah jika boleh ditarik atau dicubit.

4. 4. Jika wayar bertebat pecah selepas bendingtiga hingga empat kali, bahan lapisan penebat biasanya sangat lemah.

5. 5.Nyalakan lapisan penebat. Ia adalah wayar inferior jika boleh terbakar secara spontan selepas meninggalkan nyalaan terbuka.

6. 6. Aluminium dan kuprum biasanya digunakan dalam teras wayar, dan colorof teras inferior kelabu dan tiada kilauan logam.

7. 7.Measure the outer diameter of the insulated wire and the diameter of the core, the allowable error is ±10%, and if the measured value exceeds the allowable error, it is basically an inferior insulated wire.

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