電(dian)纜一旦著(zhu)火,應采(cai)用下(xia)列方法撲滅:
(1)切(qie)斷起(qi)火電(dian)纜(lan)(lan)電(dian)源。電(dian)纜(lan)(lan)著火燃(ran)燒,無論何原因(yin)引起(qi),都(dou)應立(li)即切(qie)斷電(dian)源,然后,根據電(dian)纜(lan)(lan)所經過的路徑和特征,認真檢查,找出(chu)電(dian)纜(lan)(lan)的故障點(dian),同時應迅速組織人員(yuan)進行(xing)撲救。
(2)電(dian)(dian)(dian)(dian)纜(lan)(lan)溝(gou)內起(qi)火非故障電(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)源的切(qie)斷(duan)。當電(dian)(dian)(dian)(dian)纜(lan)(lan)溝(gou)中的電(dian)(dian)(dian)(dian)纜(lan)(lan)起(qi)火燃燒(shao)時,如果與其同溝(gou)并排敷(fu)設的電(dian)(dian)(dian)(dian)纜(lan)(lan)有(you)明顯的著火可(ke)能性,則應將(jiang)這些電(dian)(dian)(dian)(dian)纜(lan)(lan)的電(dian)(dian)(dian)(dian)源切(qie)斷(duan)。電(dian)(dian)(dian)(dian)纜(lan)(lan)若(ruo)是分層排列,則首先(xian)將(jiang)起(qi)火電(dian)(dian)(dian)(dian)纜(lan)(lan)上面的受熱(re)電(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)源切(qie)斷(duan),然后將(jiang)與起(qi)火電(dian)(dian)(dian)(dian)纜(lan)(lan)并排的電(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)源切(qie)斷(duan),最后將(jiang)起(qi)火電(dian)(dian)(dian)(dian)纜(lan)(lan)下面的電(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)源切(qie)斷(duan)。
(3)關閉(bi)電纜溝(gou)隔(ge)火(huo)門或堵(du)死電纜溝(gou)兩端(duan)。當電纜溝(gou)內的電纜起(qi)火(huo)時(shi),為(wei)了(le)避(bi)免空氣流通,以利迅速滅火(huo),應將電纜溝(gou)的隔(ge)火(huo)門關閉(bi)或將兩端(duan)堵(du)死,采用窒(zhi)息(xi)的方法滅火(huo)。
(4)做好撲(pu)滅電(dian)(dian)纜火災時的人(ren)(ren)(ren)身防(fang)護。由于電(dian)(dian)纜起(qi)火燃燒會產生大(da)量的濃(nong)煙和毒氣,撲(pu)滅電(dian)(dian)纜火災時,撲(pu)救(jiu)人(ren)(ren)(ren)員應(ying)戴(dai)(dai)防(fang)毒面具。為防(fang)止(zhi)撲(pu)救(jiu)過程中的人(ren)(ren)(ren)身觸電(dian)(dian),撲(pu)救(jiu)人(ren)(ren)(ren)員還應(ying)戴(dai)(dai)橡皮手套和穿上絕緣靴(xue),若(ruo)發現高壓(ya)電(dian)(dian)纜一相接地,撲(pu)救(jiu)人(ren)(ren)(ren)員應(ying)遵守(shou):室內不得(de)進(jin)入距故障點4m以(yi)內,室外不得(de)進(jin)入距故障點8m以(yi)內,以(yi)免跨步電(dian)(dian)壓(ya)及接觸電(dian)(dian)壓(ya)傷人(ren)(ren)(ren)。救(jiu)護受(shou)傷人(ren)(ren)(ren)員不在此限,但應(ying)采取防(fang)護措施。
(5)撲滅(mie)(mie)電纜火(huo)災(zai)采(cai)(cai)用(yong)的滅(mie)(mie)火(huo)器材。撲滅(mie)(mie)電纜火(huo)災(zai)應采(cai)(cai)用(yong)滅(mie)(mie)火(huo)機(ji)(ji)滅(mie)(mie)火(huo),如干粉滅(mie)(mie)火(huo)機(ji)(ji)、“1211”滅(mie)(mie)火(huo)機(ji)(ji)、二(er)氧(yang)化碳滅(mie)(mie)火(huo)機(ji)(ji)等;也可(ke)使(shi)用(yong)干砂或(huo)黃土覆蓋;如果用(yong)水(shui)(shui)滅(mie)(mie)火(huo),最好使(shi)用(yong)噴霧水(shui)(shui)槍;若火(huo)勢猛(meng)烈(lie),又不可(ke)能采(cai)(cai)用(yong)其他方式撲救,待電源切斷(duan)后,可(ke)向電纜溝內灌水(shui)(shui),用(yong)水(shui)(shui)將(jiang)故障封住滅(mie)(mie)火(huo)。
(6)撲救電(dian)纜(lan)(lan)火災時,禁止(zhi)用手直(zhi)接觸摸電(dian)纜(lan)(lan)鋼鎧和移(yi)動電(dian)纜(lan)(lan)。