

金聯宇阻燃電線電纜?具備延緩火焰的能力
金聯宇阻燃電線電纜是(shi)指(zhi)具(ju)有(you)防止或(huo)(huo)延(yan)(yan)緩火(huo)(huo)(huo)(huo)(huo)焰發生或(huo)(huo)蔓延(yan)(yan)的(de)能力的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan),即在(zai)(zai)規定(ding)的(de)試驗條(tiao)件(jian)下(xia)(xia)對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)進行(xing)(xing)燃(ran)(ran)(ran)燒(shao)。火(huo)(huo)(huo)(huo)(huo)源(yuan)移除后,火(huo)(huo)(huo)(huo)(huo)焰在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)上的(de)蔓延(yan)(yan)范圍有(you)限,可自行(xing)(xing)熄滅。阻(zu)(zu)燃(ran)(ran)(ran)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)不(bu)是(shi)一種不(bu)燃(ran)(ran)(ran)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)。它(ta)只在(zai)(zai)絕緣層(ceng)(ceng)和(he)護套(tao)層(ceng)(ceng)添(tian)加阻(zu)(zu)燃(ran)(ran)(ran)材料(liao),使(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)在(zai)(zai)火(huo)(huo)(huo)(huo)(huo)災中不(bu)會延(yan)(yan)遲燃(ran)(ran)(ran)燒(shao)。當(dang)外部火(huo)(huo)(huo)(huo)(huo)源(yuan)消失(shi)時(shi)(shi)(shi),它(ta)會在(zai)(zai)一段時(shi)(shi)(shi)間后自熄。阻(zu)(zu)燃(ran)(ran)(ran)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)等(deng)(deng)級(ji)(ji)分為四(si)個(ge)(ge)等(deng)(deng)級(ji)(ji):阻(zu)(zu)燃(ran)(ran)(ran)等(deng)(deng)級(ji)(ji),阻(zu)(zu)燃(ran)(ran)(ran)等(deng)(deng)級(ji)(ji)II,阻(zu)(zu)燃(ran)(ran)(ran)等(deng)(deng)級(ji)(ji)III和(he)阻(zu)(zu)燃(ran)(ran)(ran)等(deng)(deng)級(ji)(ji)承運(yun)每個(ge)(ge)年級(ji)(ji)分為A類(lei)(lei)、B類(lei)(lei)和(he)C類(lei)(lei)阻(zu)(zu)燃(ran)(ran)(ran)樣品的(de)類(lei)(lei)別(bie),以下(xia)(xia)簡稱咱(阻(zu)(zu)燃(ran)(ran)(ran)A類(lei)(lei)),ZB(阻(zu)(zu)燃(ran)(ran)(ran)B類(lei)(lei))和(he)佐(阻(zu)(zu)燃(ran)(ran)(ran)C類(lei)(lei))耐(nai)火(huo)(huo)(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)耐(nai)火(huo)(huo)(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)是(shi)在(zai)(zai)規定(ding)的(de)火(huo)(huo)(huo)(huo)(huo)源(yuan)和(he)時(shi)(shi)(shi)間下(xia)(xia)進行(xing)(xing)耐(nai)火(huo)(huo)(huo)(huo)(huo)測(ce)試,并具(ju)有(you)在(zai)(zai)規定(ding)的(de)狀態下(xia)(xia)輸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)和(he)運(yun)行(xing)(xing)的(de)能力,即能保證(zheng)線(xian)路的(de)完整性。防火(huo)(huo)(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)能使(shi)線(xian)路在(zai)(zai)一定(ding)時(shi)(shi)(shi)間內保持(chi)正(zheng)常運(yun)行(xing)(xing)。主要用(yong)于火(huo)(huo)(huo)(huo)(huo)災條(tiao)件(jian)下(xia)(xia)保證(zheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力正(zheng)常傳輸的(de)重(zhong)要場合(he)。耐(nai)火(huo)(huo)(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)采用(yong)額定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)0.6/1.0kv及以下(xia)(xia)的(de)銅(tong)芯,絕緣層(ceng)(ceng)具(ju)有(you)耐(nai)火(huo)(huo)(huo)(huo)(huo)特(te)性。否則(ze),應在(zai)(zai)導(dao)體或(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)芯上加耐(nai)火(huo)(huo)(huo)(huo)(huo)層(ceng)(ceng)。耐(nai)火(huo)(huo)(huo)(huo)(huo)層(ceng)(ceng)通常由(you)多層(ceng)(ceng)耐(nai)火(huo)(huo)(huo)(huo)(huo)云母帶制成(cheng),屬無機絕緣材料(liao),由(you)玻(bo)璃纖(xian)維、云母粉、硅(gui)酸鹽等(deng)(deng)組成(cheng)。
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