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装修电线使用标准谁能给我介绍下？

浏览：38次 | 提问时间： 07-10 08:25

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忘不掉的痛 07-10 08:26

家庭用电源线宜采用BVV2×2.5和BVV2×1.5型号的电线。BVV是国家标准代号，为铜质护套线BVV2×2.5和BVV2×1.5，分别代表2芯2.5平方毫米和2芯1.5平方毫米。一般情况下，BVV2×2.5做主线、干线，BVV2×1.5做单个电器支线、开关线。单向空调专线用BVV2×4，另配专用地线。购买电线，首先看成卷的电线包装牌上有无中国电工产品认证委员会的“长城标志”和生产许可证号，再看电线外层塑料皮是否色泽鲜亮、质地细密，用打火机点燃应无明火。非正规产品使用再生塑料，色泽暗淡、质地疏松、能点燃明火。其次看长度、比价格。BVV2×2.5每卷的长度是100±5米，市场售价280元左右。非正规产品长度60—80米不等。有的厂家把绝缘外皮做厚，使内行也难以看出问题。您可以数一下电线的圈数，然后乘以整卷的半径，就可大致推算出长度。该类产品价格在100—130元之间。再其次可以要求商家剪一断头，看铜芯材质。BVV2×2.5铜芯直径1.784毫米，您可以用千分尺量一下。正规产品电线使用精红紫铜，外层光亮而稍软。非正规产品铜质偏黑而发硬，属再生杂铜，电阻率高，导电性能差，会升温而不安全。最后，您购买电线应去交电商店或厂家门市部等专业商店购买。

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