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电缆的使用寿命

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电缆的使用寿命

发布日期:2018-01-23 00:00 来源:http://puhe169.com 点击:

DIANLANDESHIYONGSHOUMING


电缆缆老化故障的最直接原因是绝缘降低而被击穿。导敏绝缘降低的凶素很多,高低压电线电缆根据实际运行经验,归纳起来不外乎以下几种情况。 


河北快3   1)DIANLANLAOHUAYUANYIN:DIANLANJIETOUGUZHANG。DIANLANJIETOUSHIDIANLANXIANLUZHONGZUIBORUODEHUANJIE,YOURENYUANZHIJIEGUOSHI(SHIGONGBULIANG)YINFADEDIANLANJIETOUGUZHANGSHICHANGFASHENG。SHIGONGRENYUANZAIZHIZUODIANLANJIETOUGUOCHENGZHONG,RUGUOYOUJIETOUYAJIEBUJIN、JIAREBUCHONGFENDENGYUANWANG,DOUHUIDAOZHIDIANLANTOUJUEYUANJIANGDI,CONGERYINFASHIGU。 


   2)DIANLANLAOHUAYUANYIN:HUAXUEFUSHI。DIANLANZHIJIEMAIZAIYOUSUANJIANZUOYONGDEDIQU,WANGWANGHUIZAOCHENGDIANLANDEKAIZHUANG、QIANPIHUOWAIHUCENGBEIFUSHI,BAOHUCENGYINZHANGQIZAOSHOUHUAXUEFUSHIHUODIANJIEFUSHI,ZHISHIBAOHUCENGSHIXIAO,JUEYUANJIANGDI,YEHUIDAOZHIDIANLANGUZHANG。


   3)DIANLANLAOHUAYUANYIN:JUEYUANSHOUCHAO。ZHEIZHONGQINGKUANGYEHENCHANGJIAN,YIBANFASHENGZAIZHIMAIHUOPAIGUANLIDEDIANLANJIETOUCHU。BIRU:DIANLANJIETOUZHIZUOBUHEGEHEZAICHAOSHIDEQIHOUTIAOJIANXIAZUOJIETOU,HUISHIJIETOUJINSHUIHUOHUNRUSHUIZHENGQI,SHIJIANJIUrZAIDIANCHANGZUOYONGXIAXINGCHENGSHUISHUZHI,ZHUJIANSUNHAIDIANLANDEJUEYUANQIANGDUERZAOCHENGGUZHANG。 

高低压电线电缆

   4)电缆老化原因:长期过负荷运行。超负荷运行,由于电流的热效应,负载电流通过电缆时必然导致导体发热,同时电荷的集肤效应以及钢铠的涡流损耗、绝缘介质损耗也会产乍附加热量,从而使电缆温度升高。长期超负荷运行时,过高的温度会加速绝缘的老化,以至绝缘被击穿。尤其在炎热的夏季,电缆的温升常常导致电缆绝缘薄弱处首先被击穿,因此在夏季,电缆的故障也就特别多。 


   5)DIANLANLAOHUAYUANYIN:WAILISUNSHANG。YOUJINJINIANDEYUNXINGFENXILAIKAN,YOUQISHIZAIJINGJIGAOSUFAZHANZHONGDE HAIPUDONG,XIANZAIXIANGDANGDUODEDIANLANGUZHANGDOUSHIYOUYUJIXIESUNSHANGYINQIDE。BIRU:DIANLANFUSHEANZHUANGSHIBUGUIFANSHIGONG,RONGYIZAOCHENGJIXIESUNSHANG;ZAIZHIMAIDIANLANSHANGGAOTUJIANSHIGONGYEJIYIJIANGYUNXINGZHONGDEDIANLANSUNSHANGDENG。lYOUSHIRUGUOSUNSHANGBUYANZHONG,YAOJIGEYUESHENZHIJINIANCAIHUIDAOZHISUNSHANGBUWEICHEDIJICHUANXINGCHENGGUZHANG,YOUSHIPOHUAIYANZHONGDEKENENGFASHENGDUANLUGUZHANG,ZHIJIEYINGXIANGDIAN『YIJHEYONGDIANDANWEIDEANQUANSHENGCHAN。


   6)DIANLANLAOHUAYUANYIN:HUANJINGHEWENDU。DIANLANSUOCHUDEWAIJIEHUANJINGHEREYUANYEHUIZAOCHENGDIANLANWENDUGUOGAO、JUEYUANJICHUAN,SHENZHIBAOZHAQIHUO。


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