無鹵阻燃計算機電纜

 低煙無(wu)鹵阻(zu)燃聚(ju)烯烴(jing)絕緣(yuan)和護套銅(tong)絲編織總屏(ping)計算(suan)機用屏(ping)蔽(軟)電(dian)纜(lan)，適用于交流U0/U為(wei)300/500V電(dian)力、冶金(jin)、石化等行業以(yi)電(dian)子計算(suan)機為(wei)主的自動控制(zhi)系(xi)(xi)統、計算(suan)機集(ji)散控制(zhi)系(xi)(xi)統、自動化控制(zhi)系(xi)(xi)統作(zuo)控制(zhi)線以(yi)及檢(jian)測用儀(yi)器儀(yi)表用電(dian)子計算(suan)機電(dian)纜(lan)。

代號名稱和含義

無鹵阻燃計算機電纜注意事項

1.、避免(mian)低(di)煙(yan)無鹵電(dian)(dian)(dian)纜(lan)老化和(he)損壞(huai)：低(di)煙(yan)無鹵電(dian)(dian)(dian)纜(lan)應自然通風(feng)(feng)(feng)。當電(dian)(dian)(dian)纜(lan)正常負荷下隧道(dao)內氣溫(wen)高于40 ~ 50時(shi)，可(ke)采用(yong)自然通風(feng)(feng)(feng)和(he)機(ji)械(xie)通風(feng)(feng)(feng)。通風(feng)(feng)(feng)系統(tong)的風(feng)(feng)(feng)機(ji)應與火災(zai)探測(ce)器(qi)聯(lian)鎖，確保隧道(dao)發(fa)生火災(zai)時(shi)能(neng)自動停風(feng)(feng)(feng)，電(dian)(dian)(dian)纜(lan)隧道(dao)不應作(zuo)為通風(feng)(feng)(feng)系統(tong)的進風(feng)(feng)(feng)口。應避免(mian)電(dian)(dian)(dian)纜(lan)防(fang)火門常閉，電(dian)(dian)(dian)纜(lan)用(yong)防(fang)火隔板封(feng)(feng)閉，電(dian)(dian)(dian)纜(lan)溝蓋(gai)板縫隙填充封(feng)(feng)閉，影響電(dian)(dian)(dian)纜(lan)通風(feng)(feng)(feng)散熱。而(er)且電(dian)(dian)(dian)纜(lan)封(feng)(feng)閉，無法正常檢查電(dian)(dian)(dian)纜(lan)，不能(neng)及時(shi)發(fa)現電(dian)(dian)(dian)纜(lan)故障。

2.加(jia)強低煙無鹵電(dian)(dian)纜的(de)預防性(xing)試驗(yan)(yan)(yan)：低煙無鹵電(dian)(dian)纜及電(dian)(dian)纜附件安裝完畢后，應(ying)進(jin)(jin)行(xing)DC耐壓試驗(yan)(yan)(yan)。并對實(shi)驗(yan)(yan)(yan)數(shu)(shu)據(ju)進(jin)(jin)行(xing)對比分析。即可以與同一(yi)根(gen)電(dian)(dian)纜的(de)實(shi)驗(yan)(yan)(yan)數(shu)(shu)據(ju)進(jin)(jin)行(xing)比較，也(ye)可以與這根(gen)電(dian)(dian)纜的(de)歷史(shi)實(shi)驗(yan)(yan)(yan)數(shu)(shu)據(ju)進(jin)(jin)行(xing)比較，從而探索(suo)實(shi)驗(yan)(yan)(yan)數(shu)(shu)據(ju)的(de)規(gui)律性(xing)。如果(guo)在DC耐壓試驗(yan)(yan)(yan)期間測量的(de)泄漏電(dian)(dian)流有下列情況(kuang)之(zhi)一(yi)，則電(dian)(dian)纜絕緣可能有缺(que)陷(xian)，反映出(chu)缺(que)陷(xian)部件并對其進(jin)(jin)行(xing)處理(li)。

3.防(fang)(fang)止(zhi)其他設(she)備(bei)(bei)(bei)著火的(de)(de)點(dian)燃低煙(yan)無鹵電(dian)(dian)(dian)(dian)纜(lan)(lan)：有充油電(dian)(dian)(dian)(dian)氣(qi)設(she)備(bei)(bei)(bei)、輸煤、制粉(fen)系(xi)統和汽油機系(xi)統可以點(dian)燃電(dian)(dian)(dian)(dian)纜(lan)(lan)。他們(men)應該采(cai)(cai)取相(xiang)應的(de)(de)措施：靠近充油電(dian)(dian)(dian)(dian)氣(qi)設(she)備(bei)(bei)(bei)的(de)(de)電(dian)(dian)(dian)(dian)纜(lan)(lan)溝(gou)蓋板應該密封，當紡織設(she)備(bei)(bei)(bei)發生故障著火時，油會流入電(dian)(dian)(dian)(dian)纜(lan)(lan)溝(gou)并點(dian)燃電(dian)(dian)(dian)(dian)纜(lan)(lan)。輸煤制粉(fen)系(xi)統附近電(dian)(dian)(dian)(dian)纜(lan)(lan)上的(de)(de)積粉(fen)應定(ding)期清理，防(fang)(fang)止(zhi)煤粉(fen)自然引燃電(dian)(dian)(dian)(dian)纜(lan)(lan)。面向制粉(fen)系(xi)統防(fang)(fang)爆門(men)的(de)(de)電(dian)(dian)(dian)(dian)纜(lan)(lan)應采(cai)(cai)用防(fang)(fang)火槽(cao)盒包裝(zhuang)，防(fang)(fang)止(zhi)防(fang)(fang)爆門(men)通過噴火點(dian)燃電(dian)(dian)(dian)(dian)纜(lan)(lan)。

　　4.采用各種措施防止低煙無鹵(lu)電纜著火：防火涂料具(ju)有涂層薄、不(bu)影響正常散熱、隔熱阻燃效果好的特(te)點