Kuidas tuvastada halvemaid kaableid?

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.Vaadake hoolikalt etiketi trükkimist, pöörake tähelepanu, kui esineb kirjavigu või erinevaid trükivarjundeid, sõnad on udused.

2. 2. Keerake isoleerivat kesta käsitsi ja värv ja sõnad, mida on lihtne kustutada, on tavaliselt madalamad jooned.

3. 3. Kraapige ja pigistage isoleerivat nahka küünega. Tavaliselt on see madalam joon, kui seda saab tõmmata või ära pigistada.

4. 4. Kui isoleeritud traat puruneb pärast kolme kuni neljakordset painutamist, on isolatsioonikihi materjal tavaliselt väga halb.

5. 5.Süütage isolatsioonikiht. See on madalam traat, kui see võib pärast lahtise leegist lahkumist iseeneslikult süttida.

6. 6. Traadi südamikus kasutatakse tavaliselt alumiiniumi ja vaske ning alumise südamiku värvus on hall ja sellel puudub metalliline läige.

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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