封閉(bi)母(mu)線槽（簡稱(cheng)母(mu)線槽）是由金屬板(ban)（鋼(gang)板(ban)或(huo)鋁板(ban)）為(wei)保護(hu)外(wai)殼、導電排、絕(jue)緣(yuan)材料(liao)及(ji)有(you)關附件組成(cheng)的(de)母(mu)線系統。它可制(zhi)成(cheng)每隔(ge)一(yi)段距離設有(you)插接分線盒的(de)插接型封閉(bi)母(mu)線槽，也(ye)可制(zhi)成(cheng)中間不帶分線盒的(de)饋電型封閉(bi)母(mu)線槽。隨著供應(ying)商在產品技術(shu)和服務投入的(de)加大(da)，以及(ji)母(mu)線槽在產品價格、安(an)裝方面優勢的(de)凸(tu)現，越來(lai)越多的(de)用(yong)戶認為(wei)母(mu)線槽在風(feng)電行業替代(dai)電纜是未(wei)來(lai)應(ying)用(yong)的(de)一(yi)大(da)趨(qu)勢。

任(ren)何(he)一個(ge)樓面需要切斷電(dian)(dian)源，蚌(bang)埠(bu)密集型(xing)母(mu)線(xian)(xian)槽(cao)(cao)，母(mu)線(xian)(xian)槽(cao)(cao)無(wu)須(xu)斷電(dian)(dian)，只要在(zai)空載的情況下，取(qu)下母(mu)線(xian)(xian)槽(cao)(cao)的插(cha)接(jie)(jie)箱即(ji)(ji)可。母(mu)線(xian)(xian)槽(cao)(cao)能防止過載，普通電(dian)(dian)纜(lan)的絕(jue)緣(yuan)層和外(wai)皮會(hui)(hui)(hui)燃(ran)燒(shao)，阻(zu)燃(ran)電(dian)(dian)纜(lan)在(zai)火(huo)(huo)焰下也會(hui)(hui)(hui)燃(ran)燒(shao)，只有在(zai)火(huo)(huo)焰離開(kai)后才不(bu)(bu)燃(ran)燒(shao)，耐火(huo)(huo)電(dian)(dian)纜(lan)不(bu)(bu)會(hui)(hui)(hui)燃(ran)燒(shao)，但價(jia)格(ge)昂貴，只有消防等不(bu)(bu)準(zhun)停(ting)電(dian)(dian)的電(dian)(dian)源才用耐火(huo)(huo)電(dian)(dian)纜(lan)。母(mu)線(xian)(xian)槽(cao)(cao)外(wai)殼是金屬的，不(bu)(bu)會(hui)(hui)(hui)燃(ran)燒(shao)，密集型(xing)母(mu)線(xian)(xian)槽(cao)(cao)插(cha)接(jie)(jie)箱，即(ji)(ji)使銅排的絕(jue)緣(yuan)材料(liao)發生(sheng)燃(ran)燒(shao)，火(huo)(huo)苗也不(bu)(bu)會(hui)(hui)(hui)竄(cuan)到母(mu)線(xian)(xian)槽(cao)(cao)外(wai)面。

對于可(ke)能造(zao)成母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)(cao)進水(shui)(shui)的安(an)裝方(fang)式要采取必要防護措施。如當母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)(cao)穿(chuan)越(yue)樓(lou)層(ceng)時，由于生產或(huo)屋面滲漏等種(zhong)種(zhong)原(yuan)因(yin)造(zao)成樓(lou)層(ceng)積水(shui)(shui)，耐(nai)火型(xing)(xing)密集型(xing)(xing)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)(cao)，就會(hui)順(shun)著(zhu)穿(chuan)越(yue)樓(lou)層(ceng)的母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)(cao)漏下，造(zao)成母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)(cao)進水(shui)(shui)，使(shi)(shi)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)(cao)絕緣降低。安(an)裝密集型(xing)(xing)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)(cao)也(ye)是(shi)要講究手法(fa)技巧的，在固(gu)定母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)(cao)的時候(hou)，千萬(wan)不(bu)要大意，要學會(hui)過度連接(jie)，用的鋼架去支撐著(zhu)密集型(xing)(xing)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)(cao)，讓它變(bian)得牢固(gu)可(ke)靠，便(bian)于使(shi)(shi)用才可(ke)以(yi)。