廣東南粵電纜(lan)！攜手(shou)并進，共創輝煌！
電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)用以(yi)傳(chuan)輸(shu)電(dian)(dian)(dian)(dian)（磁）能，信息和實現電(dian)(dian)(dian)(dian)磁能轉換的(de)線(xian)材產(chan)品。廣義的(de)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)亦(yi)簡稱為電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)，狹義的(de)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)是(shi)指(zhi)絕緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)，它可定(ding)義為：由下列部(bu)分組(zu)成(cheng)的(de)集合體(ti)；一根或多(duo)根絕緣(yuan)線(xian)芯，以(yi)及它們(men)各自(zi)可能具有(you)的(de)包覆(fu)層(ceng)，總保(bao)護層(ceng)及外護層(ceng)，電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)亦(yi)可有(you)附(fu)加的(de)沒有(you)絕緣(yuan)的(de)導體(ti)。
電線(xian)電纜在運行的(de)(de)(de)過程(cheng)中(zhong)，經常會出現(xian)這樣那樣的(de)(de)(de)事故(gu)，尤其是使用(yong)了非標電線(xian)電纜的(de)(de)(de)情況下。電纜在運行時，發生(sheng)兩(liang)相（及多相）接地(di)或相間短路故(gu)障(zhang)時，大(da)多造(zao)成系統(tong)跳閘，這種故(gu)障(zhang)現(xian)象俗稱--放炮(pao)。下面我們就來說說，造(zao)成"電纜放炮(pao)"的(de)(de)(de)主要因素有(you)哪些呢(ni)？
自從人們(men)開始(shi)發現使用(yong)電(dian)(dian)(dian)時，電(dian)(dian)(dian)線(xian)和低壓電(dian)(dian)(dian)力電(dian)(dian)(dian)纜就成為(wei)了(le)電(dian)(dian)(dian)力傳輸的主要(yao)載體(ti)。無論是(shi)電(dian)(dian)(dian)器設備(bei)、照明(ming)線(xian)路還是(shi)家用(yong)電(dian)(dian)(dian)器方(fang)方(fang)面面都離不開電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜。它雖然只是(shi)一個配套(tao)行業，但卻占據(ju)著電(dian)(dian)(dian)工(gong)行業的大(da)半(ban)個市場。電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的好(hao)壞(huai)會(hui)直接影(ying)響到(dao)工(gong)程(cheng)的質量和人們(men)的安全，也會(hui)影(ying)響到(dao)電(dian)(dian)(dian)纜的發展(zhan)前(qian)景。
電(dian)(dian)纜(lan)內部三(san)相芯線發(fa)生互相之(zhi)間(jian)的(de)短(duan)路(lu)故障(zhang)、或(huo)者其中一相對(dui)電(dian)(dian)纜(lan)外皮短(duan)路(lu)故障(zhang)，都會產生非(fei)常大的(de)熱(re)量，使得故障(zhang)處爆開。 二、比如絕緣層內顆粒、雜(za)質、氣(qi)泡之(zhi)類，或(huo)者是有外部機械(xie)(xie)損傷。第三(san)、檢查電(dian)(dian)纜(lan)是否(fou)彎(wan)曲(qu)太(tai)很把電(dian)(dian)纜(lan)給傷了。彎(wan)曲(qu)半徑太(tai)小，機械(xie)(xie)外力損傷，直流電(dian)(dian)阻試驗離子釋放未(wei)盡，額定電(dian)(dian)流過(guo)載。
電纜放(fang)(fang)炮(pao)都是(shi)在(zai)(zai)運行中發生(sheng)的(de)(de)，會造(zao)成系統突然跳閘，這對生(sheng)產的(de)(de)不利。我們認為電纜系統如果經常出現放(fang)(fang)炮(pao)故障，說(shuo)明電纜線路(lu)的(de)(de)施工、運行、維護和管理等環節中存在(zai)(zai)較大(da)的(de)(de)問(wen)題，應(ying)引(yin)起足夠(gou)的(de)(de)重視(shi)，在(zai)(zai)搶修工作完成以后，應(ying)當認真查找原因(yin)并加以消除，避免再次(ci)發生(sheng)放(fang)(fang)炮(pao)事故。
