隨著(zhu)社(she)會的(de)發(fa)展(zhan)，對(dui)電(dian)線(xian)電(dian)纜的(de)要求也(ye)日益提高著(zhu)，電(dian)線(xian)電(dian)纜的(de)分類也(ye)就越加的(de)詳盡，諸如耐火、阻燃、低(di)(di)煙(yan)無鹵(lu)的(de)電(dian)線(xian)電(dian)纜也(ye)就出現在了我們的(de)日常生活中(zhong)，那么對(dui)于(yu)這些電(dian)線(xian)電(dian)纜又(you)該如何(he)的(de)辨別(bie)呢(ni)？那么，下面卓(zhuo)晟(sheng)小編給大家整理了關于(yu)低(di)(di)煙(yan)無鹵(lu)的(de)電(dian)線(xian)電(dian)纜的(de)識別(bie)方法：低(di)(di)煙(yan)無鹵(lu)阻燃電(dian)線(xian)的(de)識別(bie)方法之密(mi)度對(dui)比(bi)法。低(di)(di)煙(yan)無鹵(lu)材料(liao)密(mi)度比(bi)水(shui)大，可以(yi)剝下少許(xu)絕緣層(ceng)放入水(shui)中(zhong)，如果浮在水(shui)面上方的(de)，則(ze)肯定不是低(di)(di)煙(yan)無鹵(lu)材料(liao)。

      低(di)(di)煙(yan)(yan)無(wu)鹵阻(zu)燃(ran)電(dian)(dian)(dian)(dian)(dian)線的識別方法(fa)之產品(pin)名稱(cheng)識別法(fa)。電(dian)(dian)(dian)(dian)(dian)線--低(di)(di)煙(yan)(yan)無(wu)鹵阻(zu)燃(ran)聚(ju)乙烯(xi)絕(jue)緣(yuan)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜;電(dian)(dian)(dian)(dian)(dian)纜--低(di)(di)煙(yan)(yan)無(wu)鹵阻(zu)燃(ran)聚(ju)乙烯(xi)絕(jue)緣(yuan)低(di)(di)煙(yan)(yan)無(wu)鹵阻(zu)燃(ran)聚(ju)乙烯(xi)護套電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜。仿(fang)制品(pin)一般情況下名稱(cheng)都會有一點不(bu)同，如聚(ju)乙烯(xi)絕(jue)緣(yuan)低(di)(di)煙(yan)(yan)無(wu)鹵護套阻(zu)燃(ran)電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜等等。

      低(di)煙無鹵(lu)阻(zu)燃(ran)電線(xian)的(de)識別方(fang)法(fa)之表皮(pi)燒(shao)(shao)燙(tang)法(fa)。用(yong)(yong)電烙(luo)鐵燙(tang)一(yi)下絕緣(yuan)(yuan)層(ceng)(ceng)應該(gai)(gai)沒(mei)(mei)(mei)有(you)明顯(xian)凹(ao)陷(xian)，如(ru)果(guo)有(you)較大凹(ao)陷(xian)則(ze)(ze)說明絕緣(yuan)(yuan)層(ceng)(ceng)使用(yong)(yong)的(de)材(cai)料或者(zhe)工藝(yi)存在缺陷(xian)。或者(zhe)用(yong)(yong)打火機燒(shao)(shao)烤，正常情況(kuang)下應該(gai)(gai)是(shi)(shi)不易(yi)點燃(ran)，長時間燃(ran)燒(shao)(shao)后電纜(lan)(lan)的(de)絕緣(yuan)(yuan)層(ceng)(ceng)仍然(ran)比較完整(zheng)，沒(mei)(mei)(mei)有(you)濃煙與刺(ci)激性氣味(wei)，同時直徑有(you)所(suo)增加。如(ru)很容易(yi)點燃(ran)，則(ze)(ze)可(ke)(ke)以確定(ding)電纜(lan)(lan)的(de)絕緣(yuan)(yuan)層(ceng)(ceng)沒(mei)(mei)(mei)有(you)使用(yong)(yong)低(di)煙無鹵(lu)材(cai)料(很可(ke)(ke)能是(shi)(shi)聚乙烯或者(zhe)交聯聚乙烯材(cai)料)。如(ru)果(guo)出現較***霧，則(ze)(ze)說明絕緣(yuan)(yuan)層(ceng)(ceng)使用(yong)(yong)的(de)是(shi)(shi)含鹵(lu)材(cai)料。如(ru)果(guo)長時間燃(ran)燒(shao)(shao)后，絕緣(yuan)(yuan)表面脫落嚴重(zhong)，直徑沒(mei)(mei)(mei)有(you)明顯(xian)增加，則(ze)(ze)說明沒(mei)(mei)(mei)有(you)進行合適的(de)輻照交聯工藝(yi)處(chu)理。

      低(di)煙無鹵阻(zu)燃電線(xian)的(de)(de)識別方法(fa)之熱(re)水浸泡法(fa)。把線(xian)芯(xin)或者電纜放在90℃的(de)(de)熱(re)水中浸泡，正常(chang)情(qing)況(kuang)下(xia)絕緣電阻(zu)不(bu)會急(ji)(ji)速下(xia)降并保持在0.1MΩ/Km以(yi)上(shang)。如絕緣電阻(zu)急(ji)(ji)速下(xia)降甚至(zhi)低(di)于0.009MΩ/Km，則說明沒有經(jing)過合適(shi)(shi)的(de)(de)輻照交聯(lian)工藝處理。(聚乙(yi)烯或者交聯(lian)聚乙(yi)烯絕緣材(cai)料不(bu)適(shi)(shi)用此方法(fa)識別，可以(yi)用上(shang)述第二條(tiao)的(de)(de)方法(fa)進行識別)。