外(wai)殼(ke)(ke)在同一相內包括分支回路采用電氣全連式并采用多點接地(di)使外(wai)殼(ke)(ke)基本處于等電位接地(di)方式大為簡化(hua)并人身觸電危險。

離(li)相封閉母線(xian)絕緣水平高(gao)于中國(guo)GB/T8349 美(mei)國(guo)ANSIC37.23 和英國(guo)BS159

共(gong)箱(xiang)(xiang)封閉(bi)母(mu)(mu)線(xian)(xian)(xian)包(bao)括不隔(ge)相共(gong)箱(xiang)(xiang)封閉(bi)母(mu)(mu)線(xian)(xian)(xian)、隔(ge)相共(gong)箱(xiang)(xiang)封閉(bi)母(mu)(mu)線(xian)(xian)(xian)及(ji)交直流(liu)勵(li)磁(ci)共(gong)箱(xiang)(xiang)母(mu)(mu)線(xian)(xian)(xian)MW 以(yi)下發(fa)(fa)電(dian)(dian)機(ji)(ji)引出線(xian)(xian)(xian)與主變(bian)壓器(qi)低壓側之間(jian)或75MW 及(ji)以(yi)上機(ji)(ji)組廠(chang)用(yong)變(bian)壓器(qi)低壓側與高壓配電(dian)(dian)裝置之間(jian)的電(dian)(dian)流(liu)傳(chuan)輸共(gong)箱(xiang)(xiang)封閉(bi)母(mu)(mu)線(xian)(xian)(xian)也可用(yong)于(yu)發(fa)(fa)電(dian)(dian)機(ji)(ji)交直流(liu)勵(li)磁(ci)回(hui)路，變(bian)電(dian)(dian)所(suo)所(suo)用(yong)電(dian)(dian)引入(ru)母(mu)(mu)線(xian)(xian)(xian)或其它工業民用(yong)設施的電(dian)(dian)源引線(xian)(xian)(xian)。

空氣母(mu)(mu)(mu)線(xian)(xian)(xian)槽的(de)長處 ?1 空氣母(mu)(mu)(mu)線(xian)(xian)(xian)槽在(zai)使用(yong)中作為主(zhu)干(gan)線(xian)(xian)(xian)供電(dian)(dian)(dian)只(zhi)需(xu)要(yao)(yao)一條就可(ke)以(yi)(yi)，在(zai)需(xu)要(yao)(yao)取電(dian)(dian)(dian)的(de)地(di)(di)方(fang)，只(zhi)需(xu)要(yao)(yao)插上插接箱(xiang)就可(ke)以(yi)(yi)利(li)(li)便(bian)取電(dian)(dian)(dian)，比擬傳統電(dian)(dian)(dian)纜(lan)來說，供電(dian)(dian)(dian)電(dian)(dian)(dian)流大(da)，取電(dian)(dian)(dian)利(li)(li)便(bian)快捷(jie)，昆(kun)明母(mu)(mu)(mu)線(xian)(xian)(xian)槽價(jia)格(ge)，安全(quan)。 ?2 空氣母(mu)(mu)(mu)線(xian)(xian)(xian)槽電(dian)(dian)(dian)流可(ke)以(yi)(yi)大(da)到(dao)7000A以(yi)(yi)上，不需(xu)要(yao)(yao)電(dian)(dian)(dian)纜(lan)那樣需(xu)要(yao)(yao)多(duo)條就可(ke)以(yi)(yi)輕(qing)松知足用(yong)電(dian)(dian)(dian)要(yao)(yao)求。 ?3 維護(hu)(hu)簡(jian)樸， 空氣母(mu)(mu)(mu)線(xian)(xian)(xian)槽因為有的(de)外(wai)殼對銅排進行很好的(de)保護(hu)(hu)，沒有電(dian)(dian)(dian)纜(lan)絕緣老化等(deng)情(qing)況。日常維護(hu)(hu)變得輕(qing)松簡(jian)樸。 ?4 機能不亂可(ke)靠，空氣母(mu)(mu)(mu)線(xian)(xian)(xian)槽透風散熱好，干(gan)擾小。 ?5 安裝布局利(li)(li)便(bian)，因為母(mu)(mu)(mu)線(xian)(xian)(xian)槽有多(duo)種外(wai)形，如L型(xing)，T型(xing)，Z型(xing)，三通四通等(deng)，昆(kun)明母(mu)(mu)(mu)線(xian)(xian)(xian)槽廠家，可(ke)以(yi)(yi)輕(qing)松知足不同場地(di)(di)布線(xian)(xian)(xian)。

注意母(mu)線(xian)(xian)(xian)槽(cao)(cao)極(ji)(ji)(ji)限(xian)溫(wen)升(sheng)(sheng)值：母(mu)線(xian)(xian)(xian)槽(cao)(cao)的極(ji)(ji)(ji)限(xian)溫(wen)升(sheng)(sheng)值是多少(shao)？母(mu)線(xian)(xian)(xian)槽(cao)(cao)極(ji)(ji)(ji)限(xian)溫(wen)升(sheng)(sheng)值是指母(mu)線(xian)(xian)(xian)槽(cao)(cao)滿(man)載運行(xing)通過額定(ding)電(dian)(dian)流時(shi)母(mu)線(xian)(xian)(xian)槽(cao)(cao)高溫(wen)度減去環境溫(wen)度得到的溫(wen)升(sheng)(sheng)值。通常用K表示。在母(mu)線(xian)(xian)(xian)設(she)計時(shi)會做(zuo)溫(wen)升(sheng)(sheng)極(ji)(ji)(ji)限(xian)實驗。溫(wen)升(sheng)(sheng)限(xian)制了母(mu)線(xian)(xian)(xian)的載流能力(li)(li)。溫(wen)度升(sheng)(sheng)高會縮(suo)短母(mu)線(xian)(xian)(xian)壽命，母(mu)線(xian)(xian)(xian)槽(cao)(cao)，增(zeng)加功(gong)率損耗，降低電(dian)(dian)壓。它還(huan)影響環境溫(wen)度并加速周圍設(she)備(bei)的絕緣材料(liao)。老(lao)化，甚至(zhi)造成(cheng)安(an)全事(shi)(shi)故(gu)。在我國火(huo)(huo)災事(shi)(shi)故(gu)中，由電(dian)(dian)力(li)(li)引起的火(huo)(huo)災事(shi)(shi)故(gu)占(zhan)火(huo)(huo)災事(shi)(shi)故(gu)總(zong)數的60%以上。電(dian)(dian)引起火(huo)(huo)災事(shi)(shi)故(gu)的肇事(shi)(shi)者包(bao)括：電(dian)(dian)纜、電(dian)(dian)線(xian)(xian)(xian)、高低壓成(cheng)套設(she)備(bei)、變(bian)壓器、母(mu)線(xian)(xian)(xian)槽(cao)(cao)、電(dian)(dian)器元件等，其中大(da)部分是由于(yu)長期溫(wen)升(sheng)(sheng)發熱，導(dao)致(zhi)絕緣材料(liao)老(lao)化和火(huo)(huo)災事(shi)(shi)故(gu)引起的短路。

? 極限溫升值可以說是母線槽關鍵的安全技術參數，也是母線槽整體性能的重要指標。用戶還可以從母排溫升中了解到以下問題：①銅排的純度：銅含量與導體的電阻率直接相關。相同導體規格的電阻率越大，昆明母線槽公司，溫升越高。②導體截面積：結構和工藝相同、含銅量相同的導體截面積小，溫升自然更高。③母線槽的散熱性能：絕緣材料和外殼結構不利于散熱，溫升自然高。 ④連接器結構的質量：如果連接器不接觸，溫升會更高。