電纜防火措施

為了(le)防(fang)止電纜火災(zai)事故的(de)發(fa)生，應采取以下預防(fang)措(cuo)施：

（1）選(xuan)用滿(man)足熱穩定要求(qiu)的(de)電(dian)纜。選(xuan)用的(de)電(dian)纜，在(zai)(zai)正常情況下，能滿(man)足長期(qi)額定負荷的(de)發熱要求(qiu)，在(zai)(zai)短路(lu)情況下，能滿(man)足短時熱穩定，避(bi)免電(dian)纜過熱起火(huo)。

（2）防(fang)止運行(xing)過負(fu)荷(he)(he)。電纜帶(dai)負(fu)荷(he)(he)運行(xing)時(shi)，一般不(bu)超過額定負(fu)荷(he)(he)運行(xing)，若過負(fu)荷(he)(he)運行(xing)，應嚴格(ge)控(kong)制電纜的過負(fu)荷(he)(he)運行(xing)時(shi)間，以免過負(fu)荷(he)(he)發(fa)熱使電纜起(qi)火。

通訊電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)保(bao)(bao)管。1.敷設(she)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)應避免接(jie)(jie)(jie)近熱源，避免和(he)(he)(he)蒸汽管道(dao)(dao)平行(xing)或交叉，熱管道(dao)(dao)的(de)(de)隧道(dao)(dao)或溝(gou)內，不(bu)能(neng)(neng)敷設(she)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)，如需敷設(she)，應采取(qu)隔熱措施。2.在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)溝(gou)根據電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)環(huan)(huan)(huan)境(jing)特(te)點(dian)和(he)(he)(he)重要性(xing)(xing)程度，給合運(yun)(yun)行(xing)可靠、維(wei)護方便和(he)(he)(he)經濟合理的(de)(de)原則(ze)，在(zai)(zai)可能(neng)(neng)的(de)(de)情(qing)況下(xia)，選用(yong)具(ju)有難燃(ran)性(xing)(xing)的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)。3.嚴格按照有關規程，定期對運(yun)(yun)行(xing)的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)進行(xing)檢查、試驗和(he)(he)(he)檢修(xiu)，層溝(gou)內的(de)(de)照明(ming)及消防(fang)設(she)施應經常保(bao)(bao)持良好狀態。耐化(hua)學(xue)特(te)性(xing)(xing)：XLPE具(ju)有較強的(de)(de)耐酸堿和(he)(he)(he)耐油性(xing)(xing)，其熄滅(mie)產物主要為水和(he)(he)(he)二氧化(hua)碳(tan)，對環(huan)(huan)(huan)境(jing)的(de)(de)危(wei)害(hai)較小(xiao)，滿足現代消防(fang)平安的(de)(de)請求。無鹵低(di)煙(yan)阻燃(ran)交聯聚乙烯絕緣電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)具(ju)有好的(de)(de)阻燃(ran)特(te)性(xing)(xing)，護套資(zi)料不(bu)含(han)鹵素，可以保(bao)(bao)證(zheng)在(zai)(zai)熄滅(mie)時只釋放少量的(de)(de)毒性(xing)(xing)和(he)(he)(he)腐(fu)蝕性(xing)(xing)氣(qi)體，具(ju)有產生煙(yan)霧較少等特(te)性(xing)(xing)，是一種環(huan)(huan)(huan)保(bao)(bao)型的(de)(de)新(xin)產品，同時具(ju)有優越的(de)(de)電(dian)(dian)(dian)(dian)(dian)氣(qi)性(xing)(xing)能(neng)(neng)、耐熱性(xing)(xing)能(neng)(neng)、耐化(hua)學(xue)性(xing)(xing)能(neng)(neng)、耐環(huan)(huan)(huan)境(jing)應力開裂性(xing)(xing)能(neng)(neng)、抗老化(hua)性(xing)(xing)能(neng)(neng)，具(ju)有長期的(de)(de)運(yun)(yun)用(yong)壽命。電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)接(jie)(jie)(jie)頭是電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)線路中(zhong)蕞薄弱(ruo)的(de)(de)環(huan)(huan)(huan)節，由人員直接(jie)(jie)(jie)過失(施工(gong)不(bu)良)引(yin)發(fa)的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)接(jie)(jie)(jie)頭故障時常發(fa)生。施工(gong)人員在(zai)(zai)制作電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)接(jie)(jie)(jie)頭過程中(zhong)，如果(guo)有接(jie)(jie)(jie)頭壓接(jie)(jie)(jie)不(bu)緊(jin)、加熱不(bu)充分等原網(wang)，都會導致電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)頭絕緣降低(di)，從(cong)而(er)引(yin)發(fa)事故。

（3）遵守(shou)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)敷(fu)(fu)(fu)設(she)(she)(she)(she)的(de)有(you)(you)關規(gui)定(ding)(ding)。電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)敷(fu)(fu)(fu)設(she)(she)(she)(she)時(shi)應(ying)(ying)盡(jin)量遠(yuan)離熱(re)(re)(re)源，避(bi)(bi)(bi)免(mian)與蒸(zheng)汽管道(dao)平(ping)行(xing)(xing)或交叉(cha)布(bu)置，若平(ping)行(xing)(xing)或交叉(cha)，應(ying)(ying)保(bao)持規(gui)定(ding)(ding)的(de)距離，并采取隔(ge)(ge)熱(re)(re)(re)措施，禁止(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)全線平(ping)行(xing)(xing)敷(fu)(fu)(fu)設(she)(she)(she)(she)在(zai)熱(re)(re)(re)管道(dao)的(de)上邊或下邊；在(zai)有(you)(you)些管道(dao)的(de)隧(sui)道(dao)或溝內(nei)，一般(ban)避(bi)(bi)(bi)免(mian)敷(fu)(fu)(fu)設(she)(she)(she)(she)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)，如需敷(fu)(fu)(fu)設(she)(she)(she)(she)，應(ying)(ying)采取隔(ge)(ge)熱(re)(re)(re)措施；架空敷(fu)(fu)(fu)設(she)(she)(she)(she)的(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)，尤其(qi)(qi)是(shi)塑料、橡膠電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)，應(ying)(ying)有(you)(you)防(fang)止(zhi)熱(re)(re)(re)管道(dao)等熱(re)(re)(re)影響的(de)隔(ge)(ge)熱(re)(re)(re)措施；電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)敷(fu)(fu)(fu)設(she)(she)(she)(she)時(shi)，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)之(zhi)間、電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)與熱(re)(re)(re)力管道(dao)及其(qi)(qi)他(ta)(ta)管道(dao)之(zhi)間、電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)與道(dao)路、鐵(tie)路、建筑物等之(zhi)間平(ping)行(xing)(xing)或交叉(cha)的(de)距離應(ying)(ying)滿足規(gui)程的(de)規(gui)定(ding)(ding)；此外，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)敷(fu)(fu)(fu)應(ying)(ying)留有(you)(you)波形余度，以(yi)(yi)防(fang)冬季電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)停(ting)止(zhi)運(yun)行(xing)(xing)收(shou)縮產生(sheng)過大(da)拉力而損(sun)壞(huai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)絕(jue)緣(yuan)(yuan)。電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)轉彎應(ying)(ying)保(bao)證***小的(de)曲率半徑，以(yi)(yi)防(fang)過度彎曲而損(sun)壞(huai)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)絕(jue)緣(yuan)(yuan)；電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)隧(sui)道(dao)中(zhong)(zhong)應(ying)(ying)避(bi)(bi)(bi)免(mian)有(you)(you)接頭，因電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)接頭是(shi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)中(zhong)(zhong)絕(jue)緣(yuan)(yuan)***薄(bo)弱(ruo)的(de)地(di)方，接頭處容(rong)易發生(sheng)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)短路故障，當必(bi)須在(zai)隧(sui)道(dao)中(zhong)(zhong)安裝中(zhong)(zhong)間接頭時(shi)，應(ying)(ying)用(yong)耐火(huo)隔(ge)(ge)板(ban)將(jiang)其(qi)(qi)與其(qi)(qi)他(ta)(ta)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)隔(ge)(ge)開。以(yi)(yi)上電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)敷(fu)(fu)(fu)設(she)(she)(she)(she)有(you)(you)關規(gui)定(ding)(ding)對防(fang)止(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)過熱(re)(re)(re)、絕(jue)緣(yuan)(yuan)損(sun)傷起火(huo)均起有(you)(you)效作(zuo)用(yong)。

（4）定(ding)(ding)期巡視(shi)檢查。對電力電纜(lan)(lan)應(ying)定(ding)(ding)期巡視(shi)檢查，定(ding)(ding)期測量電纜(lan)(lan)溝(gou)中的空氣溫(wen)度(du)和(he)電纜(lan)(lan)溫(wen)度(du)，特別是應(ying)做好大容量電力電纜(lan)(lan)和(he)電纜(lan)(lan)接(jie)頭(tou)盒溫(wen)度(du)的記錄。通過(guo)檢查及時發(fa)現并處理缺陷。

高壓扁平電(dian)(dian)纜(lan)(lan)(lan)(lan)適用(yong)(yong)(yong)于連接(jie)公共網(wang)(wang)絡的(de)(de)專用(yong)(yong)(yong)網(wang)(wang)絡線(xian)路。根據電(dian)(dian)纜(lan)(lan)(lan)(lan)結(jie)構特點(dian)，適合(he)架空(kong)安裝(zhuang)和(he)(he)管道(dao)敷設(she)(she)。架空(kong)安裝(zhuang)需要(yao)吊線(xian)支(zhi)撐。在(zai)(zai)-30℃ ~ 60℃的(de)(de)環(huan)境條件下，電(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)力學和(he)(he)電(dian)(dian)學性能(neng)保持不變(bian)。電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)(lan)衍生/新產品由于應(ying)(ying)用(yong)(yong)(yong)場合(he)和(he)(he)要(yao)求不同(tong)(tong)，設(she)(she)備方便(bian)，降低設(she)(she)備成(cheng)本，主(zhu)要(yao)采(cai)用(yong)(yong)(yong)新材料(liao)和(he)(he)特殊材料(liao)。使(shi)(shi)用(yong)(yong)(yong)不同(tong)(tong)的(de)(de)材料(liao)，如阻燃電(dian)(dian)纜(lan)(lan)(lan)(lan)、低煙無(wu)鹵(lu)/低煙無(wu)鹵(lu)電(dian)(dian)纜(lan)(lan)(lan)(lan)、防(fang)白(bai)蟻、防(fang)鼠電(dian)(dian)纜(lan)(lan)(lan)(lan)、耐(nai)油/耐(nai)寒(han)/耐(nai)溫電(dian)(dian)纜(lan)(lan)(lan)(lan)等。電(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)兩點(dian)都必(bi)須固(gu)(gu)定，或至少在(zai)(zai)拖(tuo)鏈的(de)(de)運動(dong)端必(bi)須固(gu)(gu)定。一般電(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)移(yi)動(dong)點(dian)離拖(tuo)鏈端部的(de)(de)距離應(ying)(ying)為電(dian)(dian)纜(lan)(lan)(lan)(lan)直(zhi)(zhi)徑的(de)(de)20-30倍。通信電(dian)(dian)纜(lan)(lan)(lan)(lan)廠家電(dian)(dian)纜(lan)(lan)(lan)(lan)在(zai)(zai)布線(xian)時不可直(zhi)(zhi)接(jie)暴露子啊陽光直(zhi)(zhi)射或者是(shi)高溫的(de)(de)環(huan)境中(zhong)，應(ying)(ying)當(dang)放在(zai)(zai)管道(dao)中(zhong)使(shi)(shi)用(yong)(yong)(yong)。在(zai)(zai)管道(dao)中(zhong)使(shi)(shi)用(yong)(yong)(yong)時安裝(zhuang)人員需要(yao)注意的(de)(de)是(shi)查看(kan)電(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)表面塑料(liao)管道(dao)是(shi)否有損(sun)傷，因為這也直(zhi)(zhi)接(jie)影響了電(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)使(shi)(shi)用(yong)(yong)(yong)。避(bi)免陽光直(zhi)(zhi)接(jie)照射墻面及人為損(sun)壞，同(tong)(tong)時也不能(neng)布置在(zai)(zai)問(wen)題較高的(de)(de)地區，這樣更加(jia)容(rong)易造成(cheng)電(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)老化(hua)，從而直(zhi)(zhi)接(jie)影響了電(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)使(shi)(shi)用(yong)(yong)(yong)壽命。

（5）嚴密(mi)(mi)封(feng)閉(bi)(bi)電(dian)(dian)纜(lan)(lan)孔、洞(dong)和(he)設(she)置防火(huo)門及隔(ge)(ge)墻。為了防止電(dian)(dian)纜(lan)(lan)火(huo)災，必(bi)須將(jiang)所有(you)穿(chuan)越墻壁、樓板、豎井、電(dian)(dian)纜(lan)(lan)溝而進入控(kong)制室、電(dian)(dian)纜(lan)(lan)夾(jia)層、控(kong)制柜(ju)、儀表(biao)柜(ju)、開關(guan)柜(ju)等處的(de)電(dian)(dian)纜(lan)(lan)孔洞(dong)進行嚴密(mi)(mi)封(feng)閉(bi)(bi)（封(feng)閉(bi)(bi)嚴密(mi)(mi)、平(ping)整、美觀、電(dian)(dian)纜(lan)(lan)勿(wu)受(shou)損傷） 。對較(jiao)長(chang)的(de)電(dian)(dian)纜(lan)(lan)隧(sui)道(dao)(dao)及其分叉道(dao)(dao)口應設(she)置防火(huo)隔(ge)(ge)墻及隔(ge)(ge)火(huo)門。在正常情(qing)況下(xia)，電(dian)(dian)纜(lan)(lan)溝或洞(dong)上的(de)門應關(guan)閉(bi)(bi)，這樣，電(dian)(dian)纜(lan)(lan)一旦起火(huo)，可以(yi)隔(ge)(ge)離或限制燃燒范(fan)圍，防止火(huo)勢(shi)蔓(man)延(yan)。

（6）剝去(qu)非直埋電(dian)(dian)纜(lan)外表(biao)黃(huang)(huang)(huang)麻(ma)外護(hu)層(ceng)(ceng)。直埋電(dian)(dian)纜(lan)外表(biao)有(you)一層(ceng)(ceng)浸瀝(li)青之類的(de)黃(huang)(huang)(huang)麻(ma)保護(hu)層(ceng)(ceng)，對直埋地(di)中的(de)電(dian)(dian)纜(lan)有(you)保護(hu)作用，當直埋電(dian)(dian)纜(lan)進入電(dian)(dian)纜(lan)溝、隧道、豎井(jing)中時，其外表(biao)浸瀝(li)青之類的(de)黃(huang)(huang)(huang)麻(ma)保護(hu)層(ceng)(ceng)應剝去(qu)，以(yi)減(jian)小火(huo)(huo)災擴大的(de)危險。同時，電(dian)(dian)纜(lan)溝上(shang)面的(de)蓋板應蓋好，且(qie)蓋板完整、堅固、電(dian)(dian)焊火(huo)(huo)渣不易(yi)掉入，減(jian)少發(fa)生(sheng)電(dian)(dian)纜(lan)火(huo)(huo)災的(de)可能(neng)性。

（7）保持電(dian)纜(lan)(lan)隧道(dao)(dao)的(de)(de)清潔和(he)適(shi)當通(tong)風(feng)。電(dian)纜(lan)(lan)隧道(dao)(dao)或溝(gou)道(dao)(dao)內應(ying)保持清潔，不許堆放垃圾和(he)雜(za)物(wu)，隧道(dao)(dao)及溝(gou)內的(de)(de)積水和(he)積油應(ying)及時(shi)***；在正常運行的(de)(de)情況下，電(dian)纜(lan)(lan)隧道(dao)(dao)和(he)溝(gou)道(dao)(dao)應(ying)有(you)適(shi)當的(de)(de)通(tong)風(feng)。

（8）保(bao)持電(dian)纜(lan)隧道(dao)或溝(gou)道(dao)有良好(hao)照明。電(dian)纜(lan)層、電(dian)纜(lan)隧道(dao)或溝(gou)道(dao)內(nei)的(de)照明經常(chang)保(bao)持良好(hao)狀態，并對需要上下的(de)隧道(dao)和(he)溝(gou)道(dao)口備有專用的(de)梯子，以(yi)便于運行檢(jian)查和(he)電(dian)纜(lan)火災(zai)的(de)撲救。

防火電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)在礦(kuang)物(wu)絕(jue)緣(yuan)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)中應(ying)(ying)用的(de)(de)(de)二種(zhong)材(cai)料(liao)銅和氧化鎂是(shi)(shi)無(wu)機物(wu)。此種(zhong)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)不(bu)會(hui)燃燒，也(ye)(ye)不(bu)會(hui)助燃，在接(jie)近火焰的(de)(de)(de)條件(jian)下(xia)仍可(ke)繼(ji)續(xu)操(cao)(cao)作(zuo)(zuo)。銅護套的(de)(de)(de)1083℃下(xia)熔(rong)融(rong)，而氧化鎂絕(jue)緣(yuan)材(cai)料(liao)則在2800℃下(xia)固化。操(cao)(cao)作(zuo)(zuo)溫(wen)度(du)(du)高礦(kuang)物(wu)絕(jue)緣(yuan)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)可(ke)耐連續(xu)操(cao)(cao)作(zuo)(zuo)溫(wen)度(du)(du)高達250℃。但是(shi)(shi)，在緊急情況下(xia)，電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)可(ke)在接(jie)近銅護套熔(rong)點的(de)(de)(de)溫(wen)度(du)(du)下(xia)，在短時間內(nei)繼(ji)續(xu)操(cao)(cao)作(zuo)(zuo)。壽命長(chang)在礦(kuang)物(wu)絕(jue)緣(yuan)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)中應(ying)(ying)用的(de)(de)(de)無(wu)機材(cai)料(liao)，可(ke)保證電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)具有穩定性、壽命長(chang)和耐火性。防爆性礦(kuang)物(wu)絕(jue)緣(yuan)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)中高度(du)(du)壓實的(de)(de)(de)絕(jue)緣(yuan)材(cai)料(liao)，可(ke)阻止蒸汽、氣體和火焰在與電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)連接(jie)的(de)(de)(de)設備零件(jian)之間通過。電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)日常負荷(he)監(jian)測(ce)是(shi)(shi)一(yi)種(zhong)有效(xiao)的(de)(de)(de)監(jian)測(ce)手(shou)段。對(dui)于一(yi)些大電(dian)(dian)(dian)流(liu)負載的(de)(de)(de)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)，需要(yao)進行(xing)輔助測(ce)溫(wen)，以確保運(yun)行(xing)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)(de)各項運(yun)行(xing)指標(biao)在可(ke)控范圍內(nei)。巡回(hui)檢(jian)(jian)驗(yan)是(shi)(shi)質檢(jian)(jian)員(yuan)對(dui)車間過程(cheng)(cheng)的(de)(de)(de)全(quan)數檢(jian)(jian)驗(yan)，認為可(ke)對(dui)重要(yao)工(gong)序，材(cai)料(liao)加強頻率的(de)(de)(de)檢(jian)(jian)驗(yan)，問題的(de)(de)(de)發生(sheng)都在一(yi)瞬間。實例:甲(jia)工(gong)人在做絞線正常生(sheng)產(chan)時，檢(jian)(jian)驗(yan)員(yuan)測(ce)量導體外徑發現外徑縮(suo)小(xiao)，那么這(zhe)時檢(jian)(jian)驗(yan)員(yuan)應(ying)(ying)該對(dui)工(gong)藝規程(cheng)(cheng)等熟記在心，發揮的(de)(de)(de)時刻到了(le)。外徑變小(xiao)，造成(cheng)電(dian)(dian)(dian)阻超標(biao)，就(jiu)應(ying)(ying)該讓工(gong)人停下(xia)來，檢(jian)(jian)查是(shi)(shi)由于單(dan)絲直徑小(xiao)，還(huan)是(shi)(shi)設備造成(cheng)的(de)(de)(de)。如果巡回(hui)檢(jian)(jian)驗(yan)不(bu)及時，也(ye)(ye)會(hui)造成(cheng)批(pi)量不(bu)合格。

（9）防(fang)止火(huo)(huo)(huo)種進(jin)入電纜溝內。在電纜附近進(jin)行(xing)明火(huo)(huo)(huo)作業(ye)時(shi)，應采取措施(shi)，防(fang)止火(huo)(huo)(huo)種進(jin)入溝內。

（10）定(ding)期進(jin)(jin)行(xing)檢修(xiu)和(he)試驗。按規程規定(ding)及電(dian)纜(lan)(lan)運(yun)行(xing)實際(ji)情況，對電(dian)纜(lan)(lan)應定(ding)期進(jin)(jin)行(xing)檢修(xiu)和(he)試驗，以便及時處理缺陷和(he)發現潛伏故障，保(bao)證(zheng)電(dian)纜(lan)(lan)安全運(yun)行(xing)和(he)避免電(dian)纜(lan)(lan)火(huo)災的發生。當進(jin)(jin)入電(dian)纜(lan)(lan)隧道(dao)或溝道(dao)內進(jin)(jin)行(xing)檢修(xiu)，試驗工(gong)作時，應遵守《電(dian)業安全工(gong)作規程》的有關規定(ding)。

電線電纜在我國的基礎建設當中起到了很重要的鏈接作用，隨著我國的不斷發展，對于動力電纜行業來說，針對不斷變化的市場和需求，傳統的行業模式已經不能適應市場發展，所以對于很多企業來說，行業的轉變刻不容緩。我國電線電纜行業仍然是繼續發展的趨勢，但是也存在七大問題，嚴重制約了該行業的健康持續發展。以北京電線電纜行業為例。電纜型號按電纜結構的排列一般依次序為：絕緣材料；導體材料；內護層；外護層。