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bv bvr 家装

浏览：28次 | 提问时间： 08-04 10:58
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6个答案
不想被忘掉 08-04 10:59

BV与BVR的优缺点比较1、BVR 聚*乙*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*乙*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。引用“ 电流互感器二次侧的导线截面应用有什么规定？控制回路用1.5平方单支（硬）铜芯线缆。中间不允许有接头，过度地方用接线端子。”

五十二杯茶 08-04 11:07

家装电线一般采用BV线（铜芯聚*乙*线）。BV--铜芯聚*乙*绝缘电缆BVR--铜芯聚*乙*绝缘软电缆BV与BVR优缺点比较：1、BVR 聚*乙*绝缘股铜芯软导线：优点：线较软用于临用电场所安装，拖移方便；缺点：使用寿命短，氧化速度快，受局部短路电流冲击、经高温易氧化、容易出现断芯、局部发热等问题，使用时应及时发现并更换；2、BV聚*乙*绝缘单芯硬导线：缺点：导线较硬，弯曲难复直反复，弯曲-拉直易受伤。优点：使用寿命长，单芯不易出现局部短路、损坏。家庭安装、暗线敷设等，建议使用BV线。

我不值得深交 08-04 11:16

BVR柔软,如果需要反复折电线的地方用BVR

Onlyou 08-04 11:24

但埋的相当浅，又不适合）能明白吗？BVVB这个偏平护套线是不允许埋入墙内的，就不能用BVR的多股软线来穿，穿入BV独股铜导线因为家庭装修（工程也一个道理），即穿线管埋入墙内，所有电源导线都是暗敷设。（没办法的办法），（造价还贵。（只有个别时候顶棚的灯位需移动小距离时用

你是旧梦 08-04 11:33

BV是单芯的主线BV，布线BVR。如果是穿线的话就BVR，多芯的

背影凉人心 08-04 11:40

公装因线路复杂而且多，而BVVR则无需电管保护。通常说的单塑线是指BV系列；而家装线路简单，双塑线是指BVV系列，无外护层，所以便宜一些，用不着多根线同时穿一根电管；而厨房，所以多用BVVR线首先要搞清什么是BVR和BVVR，有外护层。BVR是铜芯聚*乙*绝缘软电线。BVVR是铜芯聚*乙*绝缘聚*乙*护套软电线、客厅等线路较复杂建议采用电管+BVR线。BVR因比BVVR少一层保护，所以多用BVR线，第二个V是指聚*乙*护套，所以多用不同口径的电管（KBG管）保护电线（一根电管中可以同时穿多根电线）：普通房间内线路简单或单一电路采用BVVR线，第一个V是指聚*乙*绝缘，只有绝缘层。建议，但必须有电管（KBG管）保护

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