?!DOCTYPE html> 金华电缆故障的主要原?- 金华市梅兰日兰电气有限公?/title> <meta name="Keywords" content=""> <link href="/template/NESTXY00007/css/bootstrap.min.css" rel="stylesheet"> <link href="/template/NESTXY00007/css/style.css" rel="stylesheet"> <link href="/template/NESTXY00007/css/shake.css" rel="stylesheet"> <link href="/template/NESTXY00007/dist/aos.css" rel="stylesheet" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <div style="position:fixed;left:-9000px;top:-9000px;"></div> <header data-headroom id="header" class="navbar navbar-default navbar-fixed-top" role="navigation"> <div class="navbar-top visible-lg"> <div class="container"> <span class="pull-left">金华市梅兰日兰电气有限公司为您免费提?a href="/">金华电缆</a>?a href="/supply/">金华电线电缆批发</a>?a href="/news/">金华电线厂家</a>等相关信息发布和最新资讯,敬请关注?/span> <span class="pull-right"><script type="text/javascript" src="http://home.nestcms.com/32129/stat/"></script></span> </div> </div> <div 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href='http://www.91suoyin.com/news/82.html'>http://www.91suoyin.com/news/82.html</a></p> </article> <article class="info"> <div class="bd"> <div><p style="text-indent:2em;"> <span style="font-size:14px;line-height:2;">下面<b>金华电缆</b>?b><b>金华电线</b>电缆</b>及金华电线厂家来讲讲金华电缆故障的主要原因:</span> </p> <p style="text-indent:2em;"> <span style="font-size:14px;line-height:2;">1、化学腐蚀。金华电缆直接埋在有酸碱效果的地区,往往会形成电缆的铠装、铅皮或外护层被腐蚀,保护层因长时间遭受化学腐蚀或电解腐蚀,致使保护层失效,绝缘下降,也会导致电缆故障化?/span> </p> <p style="text-indent:2em;"> <span style="font-size:14px;line-height:2;">2、电缆本体的正常老化或自然灾害等其他原因?       </span> </p> <p style="text-indent:2em;"> <span style="font-size:14px;line-height:2;">3、长时间过负荷运行。人超负荷工作就会倒下,电缆也不破例。由于电流的热效应,负载电流经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,然后使电缆温度升高。尤其在酷热的夏日,电缆的温升常常导致电缆绝缘薄弱处首要被击穿,因此在夏日,电缆的故障也就特别多?/span> </p> <p style="text-indent:2em;"> <span style="font-size:14px;line-height:2;">4、外力损害。据不完全统计,外力损害可谓是电缆的首号“杀手”。由于我国城镇化速度加快,几乎每个城市都在做较大规模的改造工程,在施工过程中都会不同程度地损害到电缆,有的会直接将电缆彻底阻断,而又的则会给电缆留下“后遗症”,让电缆的防护性大大下降,进步电缆故障的发生率?/span> </p> <p style="text-indent:2em;"> <span style="font-size:14px;line-height:2;">5、绝缘受潮。这种状况也很常见,一般发生在直埋或排管里的电缆接头处。比如:电缆接头制造不合格和在潮湿的气候条件下做接头,会使接头进水或混入水蒸气,时间久r在电场效果下构成水树枝,逐渐损害电缆的绝缘强度而形成故障?/span> </p> <p style="text-indent:2em;"> <span style="font-size:14px;line-height:2;">6、电缆接头故障。金华电缆接头是电缆线路中薄弱的环节,由人员直接过失(施工不良)引发的电缆接头故障经常发生。施工人员在制造电缆接头过程中,如果有接头压接不紧、加热不充分等原网,都会导致电缆头绝缘下降,然后引发事故?/span> </p> <p style="text-indent:2em;"> <span style="font-size:14px;line-height:2;">7、环境和温度。军标电线所在的外界环境和热源也会形成电缆温度过高、绝缘击穿,乃至爆破起火?/span> </p> <p style="text-indent:2em;"> <span style="font-size:14px;line-height:2;"><img src="/uploads/image/20180329/20180329162031_5013.jpg" alt="" /><br /> </span> </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> <br /> </p></div> </div> <p align="center" class="pageLink"></p> <p class="text-right">作者:www.91suoyin.com</p> </article> <hr class="m-sx-40" /> <div class="newArtiNext"><div>上一?<a href="83.html">金华电线电缆过载应该如何避免?/a></div> <div>下一?<a href="81.html">金华电线保养注意七大事项</a></div> </div> <div class="tag">相关标签?a href='/key.aspx?k=%bd%f0%bb%aa%b5%e7%c0%c2'>金华电缆</a>,</div> </div> <div class="col-xs-12 col-sm-12 col-md-3 col-lg-3"> <div class="ny-right"> <form method="post" class="search-form" action="/key.aspx" name="formsearch"> <input type="hidden" name="kwtype" value="0" /> <ul class="list-unstyled"> <li> <input type="text" name="q" class="key" placeholder="输入关键?Keyword" /> <input type="submit" class="s-button" value="搜索" /> </li> </ul> </form> <div class="row"> <div class="col-xs-12 col-sm-6 col-md-12 col-lg-12"> <h4 class="ny-h4">相关新闻<small>Related</small></h4> <ul class="list-unstyled clearfix"> <li> <a rel="nofollow" href="/news/97.html" title="">金华电缆进水的原因和应对措施</a> <small class="pull-right">2019-07-03</small> </li> <li> <a rel="nofollow" href="/news/95.html" 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