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电线为什么要穿PVC穿线管

2025-03-15 16:58:38

推荐回答（1个）

回答1：

材料上分：一个是镀锌铁皮，一个是pvc材质
性能上分：kbg管阻燃，普通pvc没有此性能
pcv管通常用于家装（非）暗敷设，kbg管用于规范场合，公装或者其他场合。一般情况下不暗敷设。且kbg管更能保护导线

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