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海南鐘樓電纜教你怎么辨別電力電纜的優劣?

time:2018-06-22 15:59:04
海南鐘樓電線電纜的優劣關系著使用安全的有很大必要干系。購買電纜一定要買合格的電線電纜,錦亞電纜廠給大家介紹下電纜怎么分辨優劣:
1、細看商標印刷樣,字跡模糊址不詳。是指看標簽和絕緣外皮上的印刷字樣,如果有錯別字或印刷深淺不一、字樣模糊,要引起注意。
2、用手捻搓絕緣皮,掉色、掉字差質量。是指用手指搓揉絕緣外皮,有些劣質絕緣電線外皮容易掉色,特別是紅色線更會出現這種問題,經搓揉后手指上留下線皮顏色或印在線皮上的字被擦掉的一般是劣質線。
3、再用指甲劃、掐線,劃下、掉皮線一般。是指用指甲劃、掐絕緣外皮,能劃下、掐下來一塊的一般是劣質線。
4、反復折彎絕緣線,三至四次就折斷。是指反復彎折絕緣電線,劣質線絕緣層一般材質很差,彎折3~4次后其絕緣層就會斷裂。
5、用火點燃線絕緣,離開明火線自燃。是指點燃絕緣層,離開明火后能自燃的是劣質線。
6、線芯常用鋁和銅,顏色變暗光澤輕。是指看線芯顏色,劣質線顏色灰暗且無金屬光澤。

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