管道(dao)在(zai)冬季運行防凍是非(fei)常重要的(de)(de)工作，隨著電(dian)(dian)熱(re)(re)技術的(de)(de)發展，使(shi)用(yong)電(dian)(dian)伴熱(re)(re)帶(dai)為管道(dao)防凍保溫的(de)(de)用(yong)戶(hu)是越來越多，而(er)在(zai)使(shi)用(yong)過程中(zhong)由(you)于(yu)一些(xie)用(yong)戶(hu)對電(dian)(dian)伴熱(re)(re)帶(dai)的(de)(de)安裝使(shi)用(yong)了(le)解的(de)(de)不夠，造成(cheng)了(le)電(dian)(dian)伴熱(re)(re)系統使(shi)用(yong)壽命縮短(duan)，那(nei)么該如何(he)維護增加電(dian)(dian)伴熱(re)(re)帶(dai)的(de)(de)使(shi)用(yong)壽命呢，下面就以自限溫電(dian)(dian)伴熱(re)(re)帶(dai)為例，給大家介紹一下。

  一(yi)、自限(xian)溫(wen)電伴熱(re)帶潮濕環境使用問題

自限溫電伴熱帶短時間接觸水，并不會發生什么損壞。因為本身芯帶外層的聚乙烯材質，就是具有防水絕緣的性能。但是浸水時間久了，電伴熱帶會因為局部浸水部位聚集大部分熱量用于蒸發水汽，高功率大溫度也會提高，這就會導致電伴熱帶受熱不均的情況，一旦超過自身值時就會被損壞，出現故障。

  二、操作使用問(wen)題

  電(dian)(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)為管(guan)道保溫時(shi)，要(yao)避免操作使用(yong)(yong)(yong)上的錯誤(wu)。例(li)如儀表防凍上使用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)，有些(xie)為了方(fang)便，將其與儀表連接(jie)，頻(pin)繁機械性的啟(qi)動，導致電(dian)(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)電(dian)(dian)(dian)(dian)(dian)流(liu)沖(chong)擊(ji)過大；此外(wai)，安(an)裝(zhuang)接(jie)線沒(mei)有處理好，沒(mei)有做好絕緣，或(huo)(huo)則不夠緊密等(deng)(deng)，還有在(zai)安(an)裝(zhuang)工(gong)程(cheng)中，在(zai)地(di)上用(yong)(yong)(yong)力拖拽電(dian)(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)，或(huo)(huo)是固定電(dian)(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)使用(yong)(yong)(yong)金屬材(cai)質的附件，造成外(wai)絕緣破損(sun)等(deng)(deng)等(deng)(deng)。這(zhe)些(xie)情況(kuang)會給電(dian)(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)使用(yong)(yong)(yong)壽命，造成影響。所以我們要(yao)避免人為頻(pin)繁啟(qi)動電(dian)(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)（因為它存在(zai)啟(qi)動電(dian)(dian)(dian)(dian)(dian)流(liu)瞬(shun)間增加幾倍的情況(kuang)）；獨立設置供(gong)電(dian)(dian)(dian)(dian)(dian)裝(zhuang)置；在(zai)接(jie)線處，選用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)專用(yong)(yong)(yong)的接(jie)線盒，并且預留1米用于日后的維護；安(an)裝(zhuang)調試(shi)時候(hou)一定要(yao)遵循(xun)電伴熱(re)安(an)裝(zhuang)規范(fan)要(yao)求來做。