电缆的屏蔽-电缆知识-新闻资讯-易初特种电线电缆

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电缆的屏蔽
发布时间:2017-09-16 14:17:22 点击次数:1313

DIANLANDEPINGBI


90后网络赚钱1.DIANLIDIANLANDEPINGBIDINGYI


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2.JUEYUANDEPINGBIYOUGEZHONGYONGTU


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对于运行电压在1kV以下的电缆,一般采用非屏蔽的结构,对10kV 以上的电缆则需要将其屏蔽以符合国家电气法规的规定。在1~10kV的范围内, 允许使用屏蔽电缆和非屏蔽电缆,只要其结构能满足国标的要求。由于屏蔽电缆的价格一般都比非屏蔽电缆贵,同时也由于制作屏蔽电缆的终端头需要更加小心和要求留有更大的空间,所以,在1~10kV范围内,一直广泛地使用非屏蔽电缆, 非屏蔽电缆也大量用于10kV电压级。但是直接埋于地下的或在电缆表面可能积集大量导电材料(盐、烟灰、导电的穿管用润滑膏)的地方可指定使用屏蔽电缆。


3.KONGZHIDIANLANJIQIJINSHUPINGBI


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RUODIANHUILUDEMEIYIDUIWANGFANDAOXIAN,YISHUYUTONGYIGENKONGZHIDIANLAN。QIANGDIANHUILUKONGZHIDIANLAN,CHUWEIYUCHAOGAOYAPEIDIANZHUANGZHIHUOYUGAOYADIANLANJINLINBINGXINGJIAOZHANG,XUYIZHIGANRAODEQINGKUANGWAI,KEBUHANJINSHUPINGBI。RUODIANXINHAO、KONGZHIHUILUDEKONGZHIDIANLAN,DANGWEIYUCUNZAIGANRAOYINGXIANGDEHUANJINGYOUBUJUBEIYOUXIAOKANGGANRAOCUOSHISHI,YIYOUJINSHUPINGBI。KONGZHIDIANLANJINSHUPINGBIXINGLEIDEXUANZE,YINGANKENENGDEDIANQIGANRAOYINGXIANG,JIRUZONGHEYIZHIGANRAOCUOSHI,MANZUXUJIANGDIGANRAOHUOGUODIANYADEYAOQIU。WEIYU110kVYISHANGPEIDIANZHUANGZHIDERUODIANKONGZHIDIANLAN,YIYOUZONGPINGBI、SHUANGCENGSHIZONGPINGBI。JISUANJIJIANCEXITONGXINHAOHUILUKONGZHIDIANLANDEPINGBIXUANZE,DUIYUKAIGUANLIANGXINHAO,KEYONGZONGPINGBI。DUIYUGAODIANPINGMONIXINHAO,YIYONGDUIJIAOXIANXINZONGPINGBI,BIYAOSHIYEKEYONGDUIJIAOXIANXINFENPINGBI,ERDUIYUDIDIANPINGMONIXINHAOHUOMAICHONGLIANGXINHAO,YIYONGDUIJIAOXIANXINFENPINGBI,BIYAOSHIYEKEYONGDUIJIAOXIANXINFENPINGBIFUHEZONGPINGBI。QITAQINGKUANG,YINGANDIANCIGANYING、JINGDIANGANYINGHEDIDIANWEISHENGGAODENGYINGXIANGYINSU,CAIYONGSHIYIDEPINGBIXINGSHI。


XUJIANGDIDIANQIGANRAODEKONGZHIDIANLAN,KEZAIGONGZUOXINSHUWAIZENGJIAYIGEJIEDIDEBEIYONGXIN。KONGZHIDIANLAN1XINJIEDISHI,GANRAODIANYAFUZHIKEJIANGDIDAO50%~25%HUOGENGSHEN,QIESHISHIJIANBIAN, ZENGJIADIANLANZAOJIASHENWEI。KONGZHIDIANLANJINSHUPINGBIDEJIEDIFANGSHI,DUIYUDIANNAOJIANKONGXITONGDEMONIXINHAOHUILUKONGZHIDIANLANPINGBICENG,BUDEGOUCHENGLIANGDIANHUODUODIANJIEDI,YIYONGJIZHONGSHIYIDIANJIEDI。CIWAIXUYAOYIDIANJIEDIQINGKUANGWAIDEKONGZHIDIANLANPINGBICENG,DANGDIANCIGANYINGDEGANRAOJIAODA,YICAIYONGLIANGDIANJIEDI;JINGDIANGANYINGDEGANRAOJIAODA,KEYONGYIDIANJIEDI。SHUANGZHONGPINGBIHUOFUHESHIZONGPINGBI,YIDUINEI、WAIPINGBIFENYONGYIDIAN,LIANGDIANJIEDI。LIANGDIANJIEDIDEXUANZE,HAIYIKAOLVZAIZANTAIDIANLIUZUOYONGXIAPINGBICENGBUZHIBEISHAORONG。


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DIANZIZHUANGZHISHUZIXINHAOHUILUDEKONGZHIDIANLANPINGBIJIEDI,YINGSHIZAIJIEDIXIANSHANGDEDIANYAJIANGGANRAOYINGXIANGJINLIANGXIAO,JIYUJISUANJIZHEILEIJIN1VZUOYOUDEGANRAODIANYA,JIUKENENGYINQILUOJICUOWU,YINERQIANGDIAOLEDUIJISUANJIANKONGXITONGDEMONIXINHAOHUILUKONGZHIDIANLANYIZHIGANRAODEYAOQIU,YINGSHIXINGYIDIANJIEDI,ERYIDIANJIEDIKEYOUDUOZHONGSHISHIFANGSHI,XIANYIDIANNAOJIANCEXITONGQINGKUANG,ZHIMINGSHIMANZUBIMIANJIEDIHUANLIUCHUXIANDETIAOJIANXIA,JIZHONGSHIDEYIDIANJIEDI。PEIDIANZHUANGZHIZHONGJIEDIDIANWANGDEDIANLIUFENBU,CENGCEDEYOUJIEDIDIANLIUDE13%,ER110~500kVDIANYAJIDUANLUDIANLIUYIDA35~18kA。


4.PINGBIDIANLANDEFANGFA


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