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问一问各位家装用bv还是bvr

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问一问各位家装用bv还是bvr

浏览：56次 | 提问时间： 07-10 09:15

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3个答案

我停留只是没找到更好的 07-10 09:16

1、BVR 聚氯乙烯绝缘多股铜芯软导线
优点：因线较软，多用在活动用电场所、和临时用电场所，安装、拖放和移动方便。
缺点：使用寿命短，因总外园面积/总截面积的比值很大，氧化速度快，如果受短路电流冲击，经高温后，表面严重氧化，有效截面大大下降，容易出现断芯、局部发热等问题，从安全用电出发应及时更换。
2、BV聚氯乙烯绝缘单芯硬导线
缺点：导线较硬，弯曲后难以复直，多次反复弯曲-拉直易受伤，在套小管时费工。多用在固定、埋设的环境中。
优点，使用寿命长，因外园面积/截面积比值小，不易氧化，耐短路电流冲击。一般多用于屏蔽工程中。在一些要求严格的地方，比如电流互感器二次引出线，规范就明确标示禁止使用BVR线。
如果自己家安装暗线，从长期安全使用的角度考虑，应当敷设BV线。

明朝还 07-10 09:25

家装用bv和bvr线都是要用的。
都是铜芯聚氯乙烯绝缘线，区别在于BV是硬铜线，BVR是软铜线，相同面积的所承受的电流大小不同，BVR弯曲好不易折断。
BV线是单芯硬线，BVR是多芯软线。安装线路最好用BV线，因为BVR线的线头不好处理，需要用接线头。

讨好自己 07-10 09:33

一般来说，BV线比BVR价格要低一些，BV铜芯线多用在工程之中，线管内敷设，其硬度大，在拖曳施工当中，芯线不易断开，压接开关插座时不用搪锡直接压接。一些设备有时也会用到，但不会安装在震动较大的地方使用，防止震动造成接线端子松脱出现接触不良损坏设备等事故发生。BVR线多用在设备配电方面，其柔韧性好，不易断裂，在行线槽中敷设方便，且压接在接线端子上不易松脱。唯一的不便之处是在压接或接线时，多使用压接端子或搪锡使用。

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