絕緣防火電纜標志帶是在帶子上印上文字、字母、符號等符號,東北防火電纜標出電線電纜的制造廠、產品電壓等級、類型、標準、商標等等,整個標志線的色彩應共同,組合色彩中兩種色彩的分界線應明晰,符號線的色彩和膠帶上的符號應明晰可辨,牢固性:用汽油或其他適宜的溶劑清洗時,標志的色彩應保持不變,在過載或短路時是不會有明火呈現的.所以用礦藏絕緣防火電纜構成的輸電線路是不會起火的,而關于外部火焰的侵蝕,并且礦藏絕緣防火電纜也不會應為火焰的原因呈現有毒的煙霧氣體,從而確保消防設備的正常起動、火情熄滅及人員的撤離。
一般的(de)(de)(de)(de)絕緣(yuan)(yuan)防火(huo)電(dian)(dian)纜因為(wei)絕緣(yuan)(yuan)使(shi)用(yong)的(de)(de)(de)(de)都(dou)是有機(ji)高(gao)分子資料,因而(er)在火(huo)焰(yan)條(tiao)件下碳(tan)化(hua)從而(er)失掉絕緣(yuan)(yuan)作用(yong)。因為(wei)柔性礦(kuang)藏(zang)(zang)絕緣(yuan)(yuan)防火(huo)電(dian)(dian)纜主(zhu)要資料均由(you)礦(kuang)藏(zang)(zang)化(hua)合物組成,它本身不(bu)會引(yin)起火(huo)災,不(bu)可能燃燒或助燃。而(er)這些資料一般都(dou)具(ju)有1500℃以上的(de)(de)(de)(de)較高(gao)熔點,因而(er)防火(huo)電(dian)(dian)纜即便用(yong)于火(huo)焰(yan)條(tiao)件下也能發揮正常的(de)(de)(de)(de)輸電(dian)(dian)功用(yong)。
絕緣防火電纜柔性防火電纜做到了燃燒不短路,短路不燃燒的作用,能在突發火災環境下正常供電,為現場人員逃生爭取時間,為救援和啟動救活設備提供電力支撐,削減火災損失和人員傷亡;其次銅護套導電性能好,可做PE接地線連接,大大進步了接地維護的靈敏度和可靠性,礦藏絕緣柔性防火電纜不只載流量大,并且具有較強的線路過載才能,依據相關電氣設計要求一般電纜表面溫度不高于70℃,若周圍無可燃物,過載時的防火電纜長期作業溫度可達250℃。
絕緣防(fang)火電(dian)(dian)(dian)(dian)纜(lan)(lan)關(guan)于充油電(dian)(dian)(dian)(dian)纜(lan)(lan)基本(ben)(ben)上沒有部(bu)分發電(dian)(dian)(dian)(dian);油紙電(dian)(dian)(dian)(dian)纜(lan)(lan)即便有部(bu)分放電(dian)(dian)(dian)(dian),一般也(ye)是很(hen)弱(ruo)小的(de)如幾個(ge)PC,因(yin)而這些電(dian)(dian)(dian)(dian)纜(lan)(lan)在出(chu)廠實(shi)驗中(zhong)(zhong)可以不測(ce)部(bu)分放電(dian)(dian)(dian)(dian)。關(guan)于擠(ji)(ji)塑電(dian)(dian)(dian)(dian)纜(lan)(lan),不光(guang)產生(sheng)部(bu)分放電(dian)(dian)(dian)(dian)的(de)可能性大(da),并(bing)且部(bu)分放電(dian)(dian)(dian)(dian)對(dui)塑料、橡皮的(de)破壞也(ye)比(bi)較嚴重(zhong),隨著電(dian)(dian)(dian)(dian)壓等級的(de)進(jin)步,作業場強(qiang)的(de)進(jin)步,這問題就顯得愈加嚴重(zhong),因(yin)而對(dui)高壓擠(ji)(ji)塑電(dian)(dian)(dian)(dian)纜(lan)(lan),在出(chu)廠實(shi)驗中(zhong)(zhong)都要做部(bu)分放電(dian)(dian)(dian)(dian)丈量(liang)(liang)。部(bu)分放電(dian)(dian)(dian)(dian)的(de)丈量(liang)(liang)方法(fa)(fa)很(hen)多(duo),可以依據(ju)放電(dian)(dian)(dian)(dian)產生(sheng)的(de)瞬(shun)時電(dian)(dian)(dian)(dian)荷(he)交換,丈量(liang)(liang)放電(dian)(dian)(dian)(dian)脈沖(電(dian)(dian)(dian)(dian)測(ce)法(fa)(fa));也(ye)可依據(ju)放電(dian)(dian)(dian)(dian)時產生(sheng)的(de)超聲波,丈量(liang)(liang)其電(dian)(dian)(dian)(dian)壓,還可依據(ju)放電(dian)(dian)(dian)(dian)產生(sheng)的(de)光(guang),丈量(liang)(liang)光(guang)的(de)強(qiang)度。關(guan)于電(dian)(dian)(dian)(dian)纜(lan)(lan)基本(ben)(ben)上都是采用電(dian)(dian)(dian)(dian)測(ce)法(fa)(fa)。
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