阻燃(ran)耐火電纜(lan)系列產品適用(yong)于凡是在火災時(shi),仍需保持正常運行的(de)線路如工業及民用(yong)建(jian)筑的(de)消防系統,應(ying)急照明(ming)系統,救生系統,報(bao)警(jing)及重要的(de)監控回路等。
阻燃耐(nai)火(huo)電纜系(xi)列產品(pin)適用于凡是在火(huo)災時,仍需(xu)保持正常(chang)(chang)運行的(de)(de)線(xian)路如工業及(ji)(ji)民用建筑的(de)(de)消防系(xi)統(tong),應急照明系(xi)統(tong),救生系(xi)統(tong),報警及(ji)(ji)重要的(de)(de)監控回(hui)路等。常(chang)(chang)用于:
1、 消(xiao)防(fang)泵,噴淋泵,消(xiao)防(fang)電梯的供電線(xian)路(lu)及控(kong)制(zhi)電線(xian)。
2、 防火卷簾門,電動防火門,排煙系(xi)統(tong)風機,排煙閥,防火閥的供(gong)電控制線路。
3、 消防報警系統的手動(dong)報警線(xian)路(lu),消防廣播及電話(hua)線(xian)路(lu)。
4、 高層建筑及機場,地鐵等重要設施中的(de)安保閉(bi)路電(dian)視(shi)線路。
5、 集中(zhong)供電(dian)的應(ying)急照明線路(lu),控制及保護電(dian)源線路(lu)。
6、 大中型變(bian)配電(dian)所重要的繼電(dian)保護線(xian)路及操作電(dian)源線(xian)路。
7、 計算機(ji)監控線路。
(1)阻(zu)燃(ran)耐火(huo)電(dian)線(xian)電(dian)纜的(de)(de)型號(hao)(hao)表示方法:阻(zu)燃(ran)耐火(huo)電(dian)線(xian)電(dian)纜的(de)(de)型號(hao)(hao)是在普通電(dian)纜的(de)(de)型號(hao)(hao)前(qian)加○-△-□,○-是指阻(zu)燃(ran)代(dai)(dai)號(hao)(hao)用(yong)Z表示,△-是阻(zu)燃(ran)級(ji)別(bie)代(dai)(dai)號(hao)(hao),阻(zu)燃(ran)級(ji)別(bie)分為A,B,C,D四個級(ji)別(bie),□-是耐火(huo)電(dian)線(xian)電(dian)纜的(de)(de)代(dai)(dai)號(hao)(hao),用(yong)N表示。阻(zu)燃(ran)耐火(huo)A類耐火(huo):ZAN阻(zu)燃(ran)B類耐火(huo):ZBN阻(zu)燃(ran)C類耐火(huo):ZCN
(2)產品(pin)用型號(hao)、額定(ding)電壓、芯(xin)數、標稱(cheng)截(jie)面(mian)和標準號(hao)表(biao)示。
耐火(huo)型電(dian)線電(dian)纜是指在(zai)規(gui)定試驗條件下,在(zai)火(huo)焰(yan)中燃(ran)燒(shao)一定時(shi)間內能保持正常運行(xing)的電(dian)纜。
(1)、按(an)GB/T19216-2003《在火焰(yan)條(tiao)件下(xia)電纜或光纜的線路完(wan)整性試驗》的標準要(yao)求(qiu),耐(nai)火電線電纜的必須在750℃下(xia)燃燒90min,2A熔(rong)絲不熔(rong)斷。
(2)、耐(nai)(nai)(nai)火(huo)(huo)(huo)型電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜采(cai)用耐(nai)(nai)(nai)高溫的有機(ji)隔火(huo)(huo)(huo)帶作(zuo)耐(nai)(nai)(nai)火(huo)(huo)(huo)層。按照GB/T19666-2005,耐(nai)(nai)(nai)火(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜可以分為阻(zu)燃(ran)(ran)耐(nai)(nai)(nai)火(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜和非阻(zu)燃(ran)(ran)耐(nai)(nai)(nai)火(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜。阻(zu)燃(ran)(ran)耐(nai)(nai)(nai)火(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜主要(yao)是(shi)在(zai)絕緣或(huo)護套(tao)中(zhong)加(jia)入阻(zu)燃(ran)(ran)劑,就可以同(tong)時滿足阻(zu)燃(ran)(ran)特性。非阻(zu)燃(ran)(ran)耐(nai)(nai)(nai)火(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜就是(shi)在(zai)絕緣或(huo)護套(tao)中(zhong)不(bu)(bu)添加(jia)阻(zu)燃(ran)(ran)劑,它不(bu)(bu)具(ju)備阻(zu)燃(ran)(ran)特性。
(3)、根據GB/T18380.3-2002規(gui)定的試驗條件,阻燃電(dian)線(xian)電(dian)纜分為A、B、C、D四個等級。見下(xia)表:
阻燃等級(ji) 供(gong)火(huo)(huo)溫度(du) 供(gong)火(huo)(huo)時間 成束(shu)敷設電纜的非金(jin)屬材料體積 碳化高度(du) 自(zi)息時間 適用產(chan)品
A≥815℃40min≥7升/米 ≤2.5米 ≤1h耐火(huo)阻(zu)燃電纜
B≥815℃40min≥3.5升/米(mi) ≤2.5米(mi) ≤1h耐火阻(zu)燃電(dian)纜
C≥815℃20min≥1.5升(sheng)/米(mi) ≤2.5米(mi) ≤1h耐火阻燃電纜
D≥815℃20min≥0.5升/米 ≤2.5米 ≤1h耐火阻燃電纜
評分: |