電(dian)(dian)(dian)(dian)纜(lan)(lan)燃(ran)燒時(shi)給(gei)周圍電(dian)(dian)(dian)(dian)氣(qi)(qi)設(she)備以(yi)及(ji)救(jiu)(jiu)援人(ren)員造成危害，防火電(dian)(dian)(dian)(dian)纜(lan)(lan)生產廠家，不利于(yu)滅火救(jiu)(jiu)援工(gong)作(zuo)，從(cong)而導致嚴重的(de)(de)(de)(de)'二(er)次危害'。而無(wu)鹵(lu)低煙阻(zu)燃(ran)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)絕(jue)緣層(ceng)、護套、外護層(ceng)以(yi)及(ji)輔助材(cai)料(liao)(包帶及(ji)填充)全(quan)部或部分采(cai)用(yong)的(de)(de)(de)(de)是(shi)(shi)不含(han)鹵(lu)的(de)(de)(de)(de)交(jiao)聯(lian)聚乙烯(XIPE)阻(zu)燃(ran)材(cai)料(liao)，不僅具有(you)更(geng)好的(de)(de)(de)(de)阻(zu)燃(ran)特(te)性(xing)，而且在(zai)電(dian)(dian)(dian)(dian)纜(lan)(lan)燃(ran)燒時(shi)沒有(you)鹵(lu)酸氣(qi)(qi)體(ti)放出，電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)發煙量也(ye)小，電(dian)(dian)(dian)(dian)纜(lan)(lan)燃(ran)燒產生的(de)(de)(de)(de)腐蝕性(xing)氣(qi)(qi)體(ti)也(ye)少(shao)，對(dui)周圍電(dian)(dian)(dian)(dian)氣(qi)(qi)設(she)備及(ji)人(ren)身造成的(de)(de)(de)(de)危害較小，有(you)利于(yu)滅火救(jiu)(jiu)援工(gong)作(zuo)，因而，該電(dian)(dian)(dian)(dian)纜(lan)(lan)在(zai)國外被(bei)稱(cheng)做'清潔電(dian)(dian)(dian)(dian)纜(lan)(lan)'。伴(ban)隨著人(ren)們(men)安(an)全(quan)防范意識的(de)(de)(de)(de)提升(sheng)，阻(zu)燃(ran)性(xing)、阻(zu)燃(ran)電(dian)(dian)(dian)(dian)纜(lan)(lan)愈來愈多的(de)(de)(de)(de)被(bei)廣泛(fan)運用(yong)到我們(men)的(de)(de)(de)(de)日常生活中(zhong)，很多人(ren)對(dui)二(er)者(zhe)的(de)(de)(de)(de)定(ding)(ding)義辨(bian)別(bie)(bie)不清，盡管全(quan)是(shi)(shi)礦物絕(jue)緣電(dian)(dian)(dian)(dian)纜(lan)(lan)，但差別(bie)(bie)還是(shi)(shi)非常大的(de)(de)(de)(de)。在(zai)火苗點燃(ran)狀況下會維持(chi)該路線一定(ding)(ding)時(shi)間的(de)(de)(de)(de)一切正常運作(zuo)，該種類電(dian)(dian)(dian)(dian)纜(lan)(lan)線在(zai)火苗中(zhong)具備一定(ding)(ding)時(shi)間的(de)(de)(de)(de)供電(dian)(dian)(dian)(dian)系統工(gong)作(zuo)能力。通俗化(hua)地講便(bian)是(shi)(shi)，萬一起火，電(dian)(dian)(dian)(dian)纜(lan)(lan)線不容易一下就點燃(ran)，控制回路較為(wei)安(an)全(quan)性(xing)。

電(dian)(dian)纜燃(ran)(ran)(ran)(ran)(ran)燒(shao)時(shi)給(gei)周圍電(dian)(dian)氣(qi)設(she)備以(yi)及救援(yuan)人員造成(cheng)危(wei)(wei)害，不(bu)利于滅火(huo)救援(yuan)工作(zuo)，從而(er)導致嚴重的(de)(de)(de)'二次(ci)危(wei)(wei)害'。而(er)無(wu)鹵(lu)(lu)低煙阻(zu)(zu)燃(ran)(ran)(ran)(ran)(ran)電(dian)(dian)纜的(de)(de)(de)絕緣層、護套、外護層以(yi)及輔(fu)助材料(包(bao)帶(dai)(dai)及填充)全(quan)部或部分(fen)采用的(de)(de)(de)是不(bu)含鹵(lu)(lu)的(de)(de)(de)交聯聚(ju)乙烯(XIPE)阻(zu)(zu)燃(ran)(ran)(ran)(ran)(ran)材料，不(bu)僅具(ju)有(you)(you)更好的(de)(de)(de)阻(zu)(zu)燃(ran)(ran)(ran)(ran)(ran)特性(xing)，而(er)且(qie)在(zai)電(dian)(dian)纜燃(ran)(ran)(ran)(ran)(ran)燒(shao)時(shi)沒有(you)(you)鹵(lu)(lu)酸氣(qi)體(ti)放出，電(dian)(dian)纜的(de)(de)(de)發煙量也(ye)小，電(dian)(dian)纜燃(ran)(ran)(ran)(ran)(ran)燒(shao)產(chan)生(sheng)的(de)(de)(de)腐蝕性(xing)氣(qi)體(ti)也(ye)少(shao)，對周圍電(dian)(dian)氣(qi)設(she)備及人身造成(cheng)的(de)(de)(de)危(wei)(wei)害較小，有(you)(you)利于滅火(huo)救援(yuan)工作(zuo)，因(yin)而(er)，該電(dian)(dian)纜在(zai)國外被稱做(zuo)'清潔電(dian)(dian)纜'。為(wei)實現(xian)電(dian)(dian)纜的(de)(de)(de)阻(zu)(zu)燃(ran)(ran)(ran)(ran)(ran)或提高電(dian)(dian)纜的(de)(de)(de)阻(zu)(zu)燃(ran)(ran)(ran)(ran)(ran)級別，人們研制開(kai)發出擠包(bao)所(suo)謂'隔(ge)(ge)氧層'或'隔(ge)(ge)火(huo)層'作(zuo)為(wei)填充或繞包(bao)隔(ge)(ge)火(huo)阻(zu)(zu)燃(ran)(ran)(ran)(ran)(ran)包(bao)帶(dai)(dai)(隔(ge)(ge)火(huo)層)等(deng)新型結(jie)構的(de)(de)(de)阻(zu)(zu)燃(ran)(ran)(ran)(ran)(ran)電(dian)(dian)纜，并把這種電(dian)(dian)纜叫做(zuo)'隔(ge)(ge)氧(火(huo))層'電(dian)(dian)纜。阻(zu)(zu)燃(ran)(ran)(ran)(ran)(ran)電(dian)(dian)纜在(zai)火(huo)災事故(gu)產(chan)生(sheng)時(shi)要保持一(yi)段時(shi)間的(de)(de)(de)一(yi)切正常供電(dian)(dian)系統，而(er)絕緣電(dian)(dian)線不(bu)具(ju)有(you)(you)這一(yi)特點。這一(yi)特點決策了阻(zu)(zu)燃(ran)(ran)(ran)(ran)(ran)電(dian)(dian)纜在(zai)現(xian)在(zai)大都市及公共建(jian)筑中起著(zhu)關鍵的(de)(de)(de)功(gong)效(xiao)。

阻燃(ran)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)是耐火(huo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)中性能較優的(de)(de)一種(zhong)，它是由銅芯(xin)、銅護套、氧化鎂絕(jue)緣(yuan)材(cai)(cai)(cai)料加工(gong)而(er)成的(de)(de)，簡(jian)稱(cheng)MI（minerlinsulatedcables）電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)。我國阻燃(ran)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)通常(chang)可依據(ju)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)阻燃(ran)材(cai)(cai)(cai)料的(de)(de)不同，阻燃(ran)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)分為(wei)(wei)含鹵(lu)阻燃(ran)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)及(ji)無鹵(lu)低煙阻燃(ran)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)兩大(da)類(lei)。其(qi)中含鹵(lu)阻燃(ran)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)絕(jue)緣(yuan)層、護套、外護層以及(ji)輔助材(cai)(cai)(cai)料(包(bao)帶及(ji)填(tian)充)全部(bu)或部(bu)分采用(yong)含鹵(lu)的(de)(de)聚乙(yi)烯(PVC)阻燃(ran)材(cai)(cai)(cai)料，因而(er)具有良(liang)好(hao)的(de)(de)阻燃(ran)特性。耐火(huo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)大(da)多用(yong)作應急電(dian)(dian)(dian)(dian)(dian)源的(de)(de)供電(dian)(dian)(dian)(dian)(dian)回路(lu)，要求火(huo)災時(shi)正常(chang)工(gong)作。由于火(huo)災時(shi)環境溫(wen)度急劇上升(sheng)，為(wei)(wei)保(bao)證線(xian)路(lu)的(de)(de)輸送容量，降(jiang)低壓(ya)(ya)降(jiang)，對于供電(dian)(dian)(dian)(dian)(dian)線(xian)路(lu)較長且嚴格限定允許電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)降(jiang)的(de)(de)回路(lu)，應將耐火(huo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)截面至少放(fang)大(da)一檔。