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【简答题】
绝缘电线属于“布电线”类,用字母“ ”表示,导体材料是铜(无氧铜杆),用字母“ ”表示,布电线中铜芯导体一般省略表示;绝缘材料为聚氯乙烯,用字母“ ”表示,即一般用途的硬导体无护套电缆,也就是我们日常生活中使用的普通绝缘电线,是最常用的电线类型,具有抗酸碱、耐油性、防潮、防霉等特性。
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