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眾(zhong)所周(zhou)知國家(jia)對(dui)于(yu)每一(yi)(yi)(yi)種電(dian)(dian)力電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠家(jia)的(de)(de)電(dian)(dian)阻(zu)值(zhi)(zhi)都(dou)有明確的(de)(de)規定,電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)制造廠家(jia),區別電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)和非(fei)標(biao)(biao)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)的(de)(de)根本(ben)方法就是測量電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)在室溫20℃時(shi)的(de)(de)直流(liu)(liu)電(dian)(dian)阻(zu)值(zhi)(zhi),測量電(dian)(dian)阻(zu)與計算電(dian)(dian)阻(zu)值(zhi)(zhi)對(dui)比,看能否小(xiao)于(yu)標(biao)(biao)準要(yao)求(電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)一(yi)(yi)(yi)定的(de)(de)線(xian)(xian)徑(jing)、電(dian)(dian)導(dao)率(lv)、長度(du)下不大于(yu)一(yi)(yi)(yi)定的(de)(de)電(dian)(dian)阻(zu)),安慶電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan),電(dian)(dian)阻(zu)值(zhi)(zhi)小(xiao)于(yu)或等于(yu)的(de)(de)視為符合(he),電(dian)(dian)阻(zu)值(zhi)(zhi)高壓(ya)的(de)(de)視為非(fei)標(biao)(biao)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)。電(dian)(dian)線(xian)(xian)與電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)的(de)(de)差異沒有嚴肅的(de)(de)邊(bian)界,但從廣意上講,電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)構造較雜亂(luan),它有雜亂(luan)的(de)(de)護(hu)套層(ceng),而電(dian)(dian)線(xian)(xian)構造比較簡樸有的(de)(de)僅有導(dao)體(ti)和絕緣層(ceng),有的(de)(de)只要(yao)織造涂(tu)臘簡便護(hu)層(ceng)或包(bao)覆一(yi)(yi)(yi)層(ceng)輕型(xing)的(de)(de)軟護(hu)層(ceng)。電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)的(de)(de)導(dao)電(dian)(dian)線(xian)(xian)芯是用(yong)于(yu)傳輸電(dian)(dian)流(liu)(liu)的(de)(de)。
環保(bao)電(dian)(dian)纜具有(you)哪些特(te)點1、高(gao)(gao)阻燃性:環保(bao)電(dian)(dian)纜完全保(bao)證其對消防要(yao)求高(gao)(gao)的(de)(de)(de)建筑要(yao)求,火(huo)災(zai)時(shi)電(dian)(dian)纜不(bu)燒,并能阻止(zhi)燃燒后火(huo)焰(yan)的(de)(de)(de)蔓延和(he)災(zai)害的(de)(de)(de)擴大。2、無鹵素:采用(yong)綠色環保(bao)絕(jue)緣層、護套及特(te)1制的(de)(de)(de)隔氧(yang)層材(cai)料,不(bu)僅具有(you)良好的(de)(de)(de)電(dian)(dian)性能、物(wu)理機械(xie)性能,并且保(bao)證了產品不(bu)含(han)鹵素、解(jie)決了其燃燒時(shi)形(xing)成的(de)(de)(de)“二次污染”,高(gao)(gao)壓電(dian)(dian)纜線(xian)價(jia)格多少錢一米(mi),避免了傳統PVC電(dian)(dian)線(xian)燃燒時(shi)產生可致ai的(de)(de)(de)“2惡英”物(wu)質。
中高壓(ya)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)芯(xin)(xin)數(shu)的選(xuan)擇(ze)對于3~35kV三相供(gong)電(dian)(dian)(dian)(dian)回(hui)(hui)路(lu)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)芯(xin)(xin)數(shu)的選(xuan)擇(ze)。當工作電(dian)(dian)(dian)(dian)流(liu)較(jiao)大(da)的回(hui)(hui)路(lu)或電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)敷設(she)于水(shui)下(xia)時(shi),每回(hui)(hui)路(lu)可(ke)(ke)選(xuan)用(yong)(yong)3根單(dan)芯(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan);除上述情況外,應選(xuan)用(yong)(yong)3芯(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan),電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)電(dian)(dian)(dian)(dian)線價格(ge)表,3芯(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)可(ke)(ke)選(xuan)用(yong)(yong)普通統包型,也(ye)可(ke)(ke)選(xuan)用(yong)(yong)3根單(dan)芯(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)絞合構造型。對110kV三相供(gong)電(dian)(dian)(dian)(dian)回(hui)(hui)路(lu),除敷設(she)于湖(hu)、海水(shui)下(xia)等場(chang)所且(qie)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)截面不(bu)大(da)時(shi)可(ke)(ke)選(xuan)用(yong)(yong)3芯(xin)(xin)外,每回(hui)(hui)路(lu)可(ke)(ke)選(xuan)用(yong)(yong)3根單(dan)芯(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)。對110kV以(yi)上三相供(gong)電(dian)(dian)(dian)(dian)回(hui)(hui)路(lu),每回(hui)(hui)路(lu)應選(xuan)用(yong)(yong)3根單(dan)芯(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)。電(dian)(dian)(dian)(dian)氣化鐵路(lu)等高壓(ya)交流(liu)單(dan)相供(gong)電(dian)(dian)(dian)(dian)回(hui)(hui)路(lu),應選(xuan)用(yong)(yong)2芯(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)或每回(hui)(hui)選(xuan)用(yong)(yong)2根單(dan)芯(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)。高壓(ya)直流(liu)輸電(dian)(dian)(dian)(dian)系統,宜選(xuan)用(yong)(yong)單(dan)芯(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan);在湖(hu)、海等水(shui)下(xia)敷設(she)時(shi),也(ye)可(ke)(ke)選(xuan)用(yong)(yong)同軸型2芯(xin)(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)。
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