封閉(bi)(bi)(bi)式(shi)(shi)(shi)母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)簡稱母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)。封閉(bi)(bi)(bi)式(shi)(shi)(shi)母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)和(he)母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)指(zhi)的(de)是(shi)同一個東西。封閉(bi)(bi)(bi)式(shi)(shi)(shi)母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)是(shi)由金(jin)(jin)屬板（鋼(gang)板或(huo)鋁(lv)板）作(zuo)為(wei)(wei)保護殼(ke)、導電條、絕(jue)緣(yuan)(yuan)(yuan)材(cai)料及相關(guan)附(fu)件(jian)組成(cheng)的(de)母(mu)(mu)線(xian)(xian)(xian)系統(tong)。可制(zhi)成(cheng)間隔插入式(shi)(shi)(shi)接(jie)線(xian)(xian)(xian)盒的(de)插入式(shi)(shi)(shi)封閉(bi)(bi)(bi)母(mu)(mu)線(xian)(xian)(xian)，也可制(zhi)成(cheng)中間不帶接(jie)線(xian)(xian)(xian)盒的(de)饋電式(shi)(shi)(shi)封閉(bi)(bi)(bi)母(mu)(mu)線(xian)(xian)(xian)。封閉(bi)(bi)(bi)式(shi)(shi)(shi)母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)（母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)）按絕(jue)緣(yuan)(yuan)(yuan)方(fang)式(shi)(shi)(shi)可分為(wei)(wei)空(kong)(kong)氣插入式(shi)(shi)(shi)母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)、密絕(jue)緣(yuan)(yuan)(yuan)插入式(shi)(shi)(shi)母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)和(he)高強(qiang)度(du)插入式(shi)(shi)(shi)母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)三種。按其結構和(he)用(yong)途分為(wei)(wei)致密絕(jue)緣(yuan)(yuan)(yuan)、空(kong)(kong)氣絕(jue)緣(yuan)(yuan)(yuan)、空(kong)(kong)氣附(fu)加絕(jue)緣(yuan)(yuan)(yuan)、耐火、樹脂絕(jue)緣(yuan)(yuan)(yuan)和(he)滑(hua)觸式(shi)(shi)(shi)母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)；按外殼(ke)材(cai)料分為(wei)(wei)鋼(gang)殼(ke)、鋁(lv)合金(jin)(jin)殼(ke)和(he)鋼(gang)鋁(lv)混合殼(ke)母(mu)(mu)線(xian)(xian)(xian)槽(cao)(cao)。

由于(yu)大樓(lou)、工廠(chang)等各種(zhong)(zhong)建筑(zhu)電(dian)力(li)的(de)需要(yao)(yao)，而且(qie)這種(zhong)(zhong)需要(yao)(yao)有(you)逐年增加的(de)趨勢(shi)，高壓共箱母線槽(cao)，使用原來的(de)電(dian)路(lu)接(jie)線方(fang)式，即(ji)穿管方(fang)式，施(shi)工時(shi)帶來許多困難，而且(qie)，當要(yao)(yao)變(bian)更配電(dian)系統時(shi)，要(yao)(yao)使其變(bian)簡(jian)單一些幾乎是不可(ke)能的(de)，然而，如(ru)果采用母線槽(cao)的(de)話，非常容易(yi)就(jiu)可(ke)以達到目的(de)，另(ling)外還可(ke)使建筑(zhu)物變(bian)得(de)更加美觀。

正常工(gong)(gong)作條(tiao)(tiao)件(jian)1、戶內使用(yong)連續工(gong)(gong)作。2、周圍(wei)空氣溫度不(bu)高于40℃、溫度下限為(wei)-10℃。3、相(xiang)對濕度不(bu)超過90%(當(dang)周圍(wei)空氣溫度為(wei)+20℃)。4、當(dang)工(gong)(gong)作條(tiao)(tiao)件(jian)有(you)特殊要求(qiu)時、我廠可按特殊要求(qiu)制造(zao)。、主要技術(shu)參數額定(ding)電(dian)(dian)壓:660V。額定(ding)頻率50Hz(或60Hz)。絕(jue)緣電(dian)(dian)阻值:每段(duan)母(mu)線槽(cao)(cao)單元(yuan)的(de)(de)絕(jue)緣電(dian)(dian)阻應大于或等于20兆歐姆，高壓共箱(xiang)母(mu)線槽(cao)(cao)現(xian)貨批發，用(yong)戶安(an)裝時，應先檢查絕(jue)緣電(dian)(dian)阻值后再進行安(an)裝。絕(jue)緣強(qiang)(qiang)度，高壓共箱(xiang)母(mu)線槽(cao)(cao)價格，每一段(duan)母(mu)線槽(cao)(cao)單元(yuan)出(chu)廠前均經受到50Hz3750V/Min工(gong)(gong)頻耐壓試驗。短(duan)路強(qiang)(qiang)度(承(cheng)(cheng)載短(duan)路強(qiang)(qiang)度的(de)(de)能力)：母(mu)線槽(cao)(cao)能承(cheng)(cheng)受表2規定(ding)的(de)(de)短(duan)時間耐受電(dian)(dian)流和(he)額定(ding)峰(feng)值耐受電(dian)(dian)流所產生的(de)(de)熱應力和(he)電(dian)(dian)動力。

母線(xian)槽的(de)便捷維護(hu)：母線(xian)槽幾乎免維護(hu)。日常維護(hu)通常是測量外殼(ke)和芯螺(luo)栓(shuan)的(de)溫(wen)(wen)度(du)升(sheng)高(gao)，進(jin)線(xian)盒連(lian)接(jie)器的(de)溫(wen)(wen)度(du)升(sheng)高(gao)等。如(ru)果芯螺(luo)栓(shuan)為4.8級，則需(xu)要定期(qi)(qi)擰緊。如(ru)果使用8.8級高(gao)強度(du)螺(luo)栓(shuan)，則無需(xu)定期(qi)(qi)加固。

過(guo)載(zai)時母(mu)線槽(cao)堅固(gu)：過(guo)載(zai)時母(mu)線槽(cao)堅固(gu)，這取決于所用(yong)(yong)絕(jue)緣(yuan)(yuan)材(cai)料的(de)工(gong)作(zuo)溫度(du)高。用(yong)(yong)于母(mu)線槽(cao)的(de)絕(jue)緣(yuan)(yuan)材(cai)料是使用(yong)(yong)工(gong)作(zuo)溫度(du)為(wei)(wei)(wei)105℃的(de)材(cai)料過(guo)度(du)支撐的(de)，并且已經開發(fa)并接受(shou)，高壓(ya)共箱(xiang)母(mu)線槽(cao)廠家(jia)批發(fa)，工(gong)作(zuo)溫度(du)為(wei)(wei)(wei)140。輻射交(jiao)聯阻燃纏繞(rao)帶和輻射交(jiao)聯聚碳酸酯熱縮(suo)管℃以上。但是，電纜使用(yong)(yong)的(de)絕(jue)緣(yuan)(yuan)材(cai)料的(de)正常工(gong)作(zuo)溫度(du)為(wei)(wei)(wei)95℃和105℃，因此(ci)母(mu)線槽(cao)的(de)過(guo)載(zai)可能遠大于電纜的(de)過(guo)載(zai)。