Jinsi ya kutambua nyaya za chini?

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.Kuangalia kwa makini uchapishaji wa lebo, makini ikiwa kuna typos au vivuli tofauti vya uchapishaji, maneno yanapigwa.

2. 2.Sogeza ngozi ya kuhami joto kwa mkono, na rangi na maneno ambayo ni rahisi kufuta kwa kawaida huwa ni mistari duni.

3. 3.Kuna na kubana ngozi ya kuhami joto kwa ukucha.Kwa kawaida ni mstari wa chini ikiwa unaweza kuchorwa au kubanwa.

4. 4.Ikiwa waya wa maboksi huvunjika baada ya kupiga tatu hadi mara nne, nyenzo za safu ya insulation kawaida ni duni sana.

5. 5.Washa safu ya insulation. Ni waya wa chini ifcan inaweza kuwaka yenyewe baada ya kuacha mwako wazi.

6. 6.Alumini na shaba hutumiwa kwa kawaida katika msingi wa waya, na rangi ya kijivu cha chini cha msingi na hakuna luster ya metali.

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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