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10秒装修报价 装修要花多少钱?获得精准报价,省钱30%
168211
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BV 导线线芯较硬做固定敷设供电比照明配线力配线使BV型界面独股截面股BVR 型软电线股比BV股数更每股更细般需要弯曲或移设备使用RVV软线根起并根外层塑料护套用家用电器设备电源线
BV单铜芯聚乙*线BVR芯聚乙*线较硬软BVR比BV相同截面积载流量更适合螺丝压接连接造价高些般家庭建议使用BVR比前BV2.5平线使用BVR用1.5平代替穿线比较麻烦BVR线软
买规电线,两线都使用,区别于RV线硬BVR,价格稍微便宜点.使用效区别,般家装用BV,毕竟相同截面电线,本要便宜点,载流量略.要求柔软,弯曲半径,选用BVR
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。
BVR柔软,需要反复折电线用BVR
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。”