Hoe om minderwaardige kabels te identifiseer?

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.Kyk mooi na die etiketdruk, let op as daar tikfoute of verskillende skakerings van druk is, die woorde is vaag.

2. 2.Draai die isolerende vel met die hand, en die kleur en woorde wat maklik is om uit te vee, is gewoonlik minderwaardige lyne.

3. 3.Krap en knyp die isolerende vel met 'n vingernael. Dit is gewoonlik 'n minderwaardige lyn as dit getrek of afgeknyp kan word.

4. 4.As die geïsoleerde draad breek nadat hy drie tot vier keer gebuig het, is die materiaal van die isolasielaag gewoonlik baie swak.

5. 5. Ontsteek die isolasielaag. Dit is die minderwaardige draad wat spontaan kan ontbrand nadat dit die oop vlam verlaat het.

6. 6.Aluminium en koper word algemeen in die kern van die draad gebruik, en die kleur van die onderste kern is grys en daar is geen metaalglans nie.

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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