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                  1、绝缘电线的种类有∮哪些? 绝缘电缆只⊙要记住这几种最常用到的就可■以了,其中包括︻了聚氯乙烯绝缘电缆、聚氯乙烯绝▲缘软线缆、聚氯♀乙烯混合物绝缘软线缆、橡皮绝缘电缆、用地下直埋铝芯...

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                  架空绝缘电缆的绝缘料是专用的,要求具有优良的耐候性能、机械和物理性能和卐必要的电气性能。黑色聚氯乙烯和黑色聚乙烯均可使用,但用量最多的是黑色交联聚乙烯。采用黑色料的目※的是...