金屬(shu)護(hu)(hu)套是一種(zhong)電(dian)(dian)(dian)氣工程名詞，主要(yao)用(yong)于保(bao)(bao)(bao)護(hu)(hu)電(dian)(dian)(dian)線和(he)電(dian)(dian)(dian)纜(lan)不受(shou)機(ji)械(xie)損傷(shang)、防止(zhi)火災、防止(zhi)外(wai)力(li)(li)破壞(huai)以及防止(zhi)有害的(de)機(ji)械(xie)壓(ya)(ya)力(li)(li)。金屬(shu)護(hu)(hu)套的(de)原(yuan)理主要(yao)是通過金屬(shu)材(cai)料的(de)導電(dian)(dian)(dian)性和(he)韌性來(lai)保(bao)(bao)(bao)護(hu)(hu)電(dian)(dian)(dian)線和(he)電(dian)(dian)(dian)纜(lan)。當電(dian)(dian)(dian)流通過時(shi)，金屬(shu)護(hu)(hu)套可(ke)以將電(dian)(dian)(dian)流分(fen)散(san)到地面，從(cong)(cong)而防止(zhi)電(dian)(dian)(dian)線和(he)電(dian)(dian)(dian)纜(lan)因電(dian)(dian)(dian)流過大而損壞(huai)。同時(shi)，金屬(shu)護(hu)(hu)套還(huan)可(ke)以提供一定的(de)保(bao)(bao)(bao)護(hu)(hu)屏障，阻止(zhi)外(wai)界(jie)的(de)機(ji)械(xie)應力(li)(li)和(he)高溫對電(dian)(dian)(dian)線和(he)電(dian)(dian)(dian)纜(lan)的(de)影響，從(cong)(cong)而保(bao)(bao)(bao)證電(dian)(dian)(dian)力(li)(li)傳輸的(de)穩定和(he)安(an)全。在電(dian)(dian)(dian)力(li)(li)工程中，金屬(shu)護(hu)(hu)套被廣泛(fan)應用(yong)于高壓(ya)(ya)輸電(dian)(dian)(dian)線路(lu)和(he)配電(dian)(dian)(dian)線路(lu)中，也用(yong)于變電(dian)(dian)(dian)站、配電(dian)(dian)(dian)所和(he)開關站等電(dian)(dian)(dian)力(li)(li)設施中。

阻燃套管是一(yi)(yi)種(zhong)(zhong)特(te)殊的(de)(de)管道(dao)材(cai)料(liao)(liao)(liao)，主要(yao)(yao)(yao)用(yong)(yong)(yong)于(yu)(yu)保護電(dian)力(li)和(he)通訊(xun)設施。它(ta)具有(you)(you)耐高溫(wen)、防火(huo)性能(neng)優良(liang)的(de)(de)特(te)點(dian)；同時也(ye)具備(bei)了良(liang)好(hao)的(de)(de)電(dian)絕緣(yuan)性以(yi)(yi)及(ji)(ji)柔軟度等特(te)性在各(ge)種(zhong)(zhong)需(xu)(xu)要(yao)(yao)(yao)防止火(huo)源傳(chuan)(chuan)播(bo)的(de)(de)地(di)方使用(yong)(yong)(yong)（如火(huo)災時電(dian)流傳(chuan)(chuan)輸(shu)線(xian)(xian)路仍需(xu)(xu)工(gong)(gong)作）主要(yao)(yao)(yao)應用(yong)(yong)(yong)范圍：1.用(yong)(yong)(yong)于(yu)(yu)電(dian)線(xian)(xian)電(dian)纜的(de)(de)穿線(xian)(xian)用(yong)(yong)(yong)的(de)(de)導(dao)(dao)管有(you)(you)金(jin)屬和(he)非金(jin)屬之分(fen),通常我們說的(de)(de)橋架是托盤式(shi)或梯(ti)式(shi)的(de)(de)非導(dao)(dao)體(由鋁合金(jin)材(cai)質(zhi)制(zhi)作)。一(yi)(yi)般適用(yong)(yong)(yong)于(yu)(yu)額定電(dian)壓450/72V及(ji)(ji)以(yi)(yi)下或在90℃溫(wen)度下使用(yong)(yong)(yong)的(de)(de)動(dong)力(li)和(he)控制(zhi)電(dian)路系統中的(de)(de)固定敷設通信(xin)用(yong)(yong)(yong)導(dao)(dao)線(xian)(xian)。可(ke)用(yong)(yong)(yong)于(yu)(yu)諸如船(chuan)只、車輛內部(bu)安裝(zhuang)的(de)(de)各(ge)種(zhong)(zhong)電(dian)器(qi)相互連接之零(ling)件或者作為船(chuan)舶操縱臺電(dian)氣配(pei)(pei)件的(de)(de)外層(ceng)屏(ping)蔽(bi)，也(ye)是一(yi)(yi)種(zhong)(zhong)柔性導(dao)(dao)體的(de)(de)無鹵(lu)素干擾輻射密封護罩(zhao)和(he)車載電(dian)容(rong)器(qi)的(de)(de)外殼還(huan)有(you)(you)彈簧成型緊固件的(de)(de)結構組件(海(hai)工(gong)(gong)設備(bei)中均有(you)(you)所運用(yong)(yong)(yong))等各(ge)種(zhong)(zhong)高低壓配(pei)(pei)電(dian)行業(ye)的(de)(de)重(zhong)要(yao)(yao)(yao)輔(fu)助原(yuan)料(liao)(liao)(liao)產物!有(you)(you)許多企業(ye)專門從事(shi)這(zhe)種(zhong)(zhong)原(yuan)材(cai)料(liao)(liao)(liao)制(zhi)品的(de)(de)生(sheng)產！具有(you)(you)重(zhong)量輕(qing)、韌(ren)性好(hao),可(ke)撓曲(qu)使用(yong)(yong)(yong)壽命長(chang)等特(te)點(dian);尤其是有(you)(you)優異的(de)(de)防水功能(neng)和(he)腐(fu)機能(neng)!。

玄武巖套管(guan)的(de)(de)(de)安裝可(ke)(ke)以分為以下(xia)幾個(ge)步驟：1.確定(ding)位置(zhi)，在需要插入管(guan)子的(de)(de)(de)地(di)方(fang)(fang)做好標(biao)記。通(tong)常使用(yong)的(de)(de)(de)是(shi)鉆孔機來(lai)定(ding)位的(de)(de)(de)。如(ru)(ru)果(guo)沒有這(zhe)個(ge)機器的(de)(de)(de)話也可(ke)(ke)以用(yong)角(jiao)磨(mo)石切割(ge)一(yi)個(ge)圓洞(dong)或者用(yong)手(shou)持式電錘在工作坑(keng)中打出一(yi)個(ge)圓形淺(qian)槽(cao)等距離地(di)面0-25cm處施加壓力并把鋼管(guan)壓入土內,或人工下(xia)挖至設計標(biao)高后進行施工（這(zhe)種方(fang)(fang)法比較費時(shi)）。如(ru)(ru)果(guo)是(shi)在已有的(de)(de)(de)管(guan)線(xian)旁邊(bian)做新立(li)桿接通(tong)線(xian)路的(de)(de)(de)時(shi)候要保(bao)證兩(liang)根(gen)鐵線(xian)之間的(de)(de)(de)間距是(shi)相等的(de)(de)(de)這(zhe)樣就可(ke)(ke)以通(tong)過這(zhe)兩(liang)根(gen)鐵線(xian)的(de)(de)(de)長度差來(lai)確定(ding)一(yi)根(gen)軸線(xian)和垂直(zhi)于地(di)面的(de)(de)(de)直(zhi)線(xian)是(shi)否重合了。）2.在需要做保(bao)護的(de)(de)(de)地(di)方(fang)(fang)包上(shang)裹一(yi)層(ceng)鋼絲(si)網然后綁扎(zha)搭(da)接銅芯軟電纜備用(yong)即(ji)可(ke)(ke)完(wan)成后續的(de)(de)(de)工作。