不良ケーブルを特定するにはどうすればよいですか?

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. ラベルの印刷を注意深く見て、タイプミスや印刷の色合いの違い、文字がぼやけている場合に注意してください。

2. 2.絶縁スキンを手でひねると、色や文字が消えやすくなり、通常は劣った線になります。

3. 3.爪で絶縁皮膜を引っ掻いてつまみます。線を引いたり、つまみ取ったりできる場合は、通常、劣った線になります。

4. 4. 絶縁ワイヤが 3 ～ 4 回曲げた後に切れる場合は、通常、絶縁層の材質が非常に貧弱です。

5. 5.絶縁層を点火します。裸火から離れた後に自然発火する可能性がある場合は、劣ったワイヤーです。

6. 6.ワイヤーの芯線にはアルミニウムと銅が一般的に使用されており、劣った芯線の色は灰色で金属光沢はありません。

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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