Hvordan identificerer man ringere kabler?

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.Se omhyggeligt på etiketudskrivningen, vær opmærksom på, om der er slåfejl eller forskellige nuancer af tryk, ordene er slørede.

2. 2. Drej den isolerende hud med hånden, og farven og ordene, der er lette at slette, er normalt dårlige linjer.

3. 3.Klad og klem den isolerende hud med en fingernegl. Det er normalt en ringere streg, hvis den kan trækkes eller klemmes af.

4. 4.Hvis den isolerede ledning knækker efter at være bøjet tre til fire gange, er isoleringslagets materiale normalt meget dårligt.

5. 5. Tænd isoleringslaget. Det er den underordnede ledning, der kan selvantænde efter at have forladt åben ild.

6. 6. Aluminium og kobber er almindeligt anvendt i trådens kerne, og farven på den underordnede kerne er grå, og der er ingen metallisk glans.

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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