專業生產銅芯線電(dian)(dian)纜老化原因(yin)：外力的(de)(de)(de)損(sun)傷(shang)。由近幾年(nian)的(de)(de)(de)數(shu)據(ju)分析來看，尤其是(shi)在(zai)經濟高速發展中的(de)(de)(de)上海，現在(zai)的(de)(de)(de)大多數(shu)電(dian)(dian)纜故障(zhang)都是(shi)因(yin)為機(ji)(ji)械(xie)損(sun)傷(shang)引起的(de)(de)(de)。譬如：電(dian)(dian)纜在(zai)敷設安(an)裝的(de)(de)(de)過(guo)程中不(bu)按照正常規范施工，容(rong)易造成(cheng)(cheng)機(ji)(ji)械(xie)損(sun)傷(shang)；在(zai)直埋(mai)電(dian)(dian)纜上建造施工也特別容(rong)易將運行(xing)中的(de)(de)(de)電(dian)(dian)纜損(sun)傷(shang)等。有時如果損(sun)傷(shang)不(bu)嚴重(zhong)(zhong)，要經過(guo)數(shu)年(nian)才會導致(zhi)損(sun)傷(shang)部(bu)位(wei)徹(che)底擊(ji)穿形成(cheng)(cheng)故障(zhang)，有時破壞相對(dui)比較嚴重(zhong)(zhong)的(de)(de)(de)可能會發生短路故障(zhang)，直接影響到用電(dian)(dian)單位(wei)的(de)(de)(de)安(an)全。

1. 銅芯線電(dian)(dian)纜(lan)和附(fu)(fu)件(jian)(jian)的運(yun)(yun)輸、保管應(ying)(ying)(ying)符合(he)產品技(ji)術(shu)(shu)(shu)文件(jian)(jian)的要(yao)(yao)(yao)求，并應(ying)(ying)(ying)符合(he)下列(lie)(lie)規(gui)定(ding)(ding)：(1) 電(dian)(dian)纜(lan)盤(pan)不(bu)應(ying)(ying)(ying)平放(fang)。(2) 包(bao)(bao)裝外表(biao)面及(ji)內部(bu)制品不(bu)得(de)損(sun)壞。(3) 應(ying)(ying)(ying)采取防止傾倒(dao)、受潮、腐蝕及(ji)強烈(lie)振動的措(cuo)施。(4) 運(yun)(yun)輸或(huo)(huo)滾動電(dian)(dian)纜(lan)盤(pan)，電(dian)(dian)纜(lan)盤(pan)應(ying)(ying)(ying)牢固，且電(dian)(dian)纜(lan)應(ying)(ying)(ying)繞緊;充油(you)電(dian)(dian)纜(lan)至(zhi)壓力油(you)箱間的油(you)管應(ying)(ying)(ying)固定(ding)(ding)，不(bu)得(de)損(sun)傷。2. 電(dian)(dian)纜(lan)及(ji)其(qi)附(fu)(fu)件(jian)(jian)運(yun)(yun)抵(di)現場后應(ying)(ying)(ying)按(an)下列(lie)(lie)檢查(cha)(cha)：(1) 包(bao)(bao)裝和密(mi)(mi)封(feng)應(ying)(ying)(ying)良好。(2) 設(she)備(bei)(bei)(bei)規(gui)格、型(xing)號(hao)、數(shu)量以及(ji)附(fu)(fu)件(jian)(jian)、專(zhuan)用工器具、備(bei)(bei)(bei)件(jian)(jian)應(ying)(ying)(ying)符合(he)設(she)計(ji)文件(jian)(jian)和合(he)同要(yao)(yao)(yao)求。(3) 設(she)備(bei)(bei)(bei)銘牌、技(ji)術(shu)(shu)(shu)文件(jian)(jian)、出廠試驗報告、合(he)格證明及(ji)裝箱清(qing)單應(ying)(ying)(ying)齊全。(4) 設(she)備(bei)(bei)(bei)及(ji)附(fu)(fu)件(jian)(jian)應(ying)(ying)(ying)無碰傷、擦(ca)傷、銹蝕和變(bian)(bian)形。(5) 帶電(dian)(dian)部(bu)分表(biao)面應(ying)(ying)(ying)光潔平整，不(bu)應(ying)(ying)(ying)有(you)(you)裂紋、折皺、夾(jia)雜物、變(bian)(bian)形或(huo)(huo)扭曲(qu)現象。(6) 充油(you)電(dian)(dian)氣設(she)備(bei)(bei)(bei)應(ying)(ying)(ying)無滲油(you)現象。(7) 充氣運(yun)(yun)輸的電(dian)(dian)氣設(she)備(bei)(bei)(bei)內應(ying)(ying)(ying)為正壓，其(qi)壓力為0.01 MPa-0.03MPa，干燥空氣露點應(ying)(ying)(ying)低于-40℃。氣體絕緣電(dian)(dian)氣設(she)備(bei)(bei)(bei)內的壓力，應(ying)(ying)(ying)符合(he)產品技(ji)術(shu)(shu)(shu)文件(jian)(jian)要(yao)(yao)(yao)求。(8) 密(mi)(mi)封(feng)墊(dian)、密(mi)(mi)封(feng)脂(zhi)、清(qing)潔劑和潤滑脂(zhi)，應(ying)(ying)(ying)符合(he)產品技(ji)術(shu)(shu)(shu)文件(jian)(jian)要(yao)(yao)(yao)求。(9) 電(dian)(dian)纜(lan)外觀應(ying)(ying)(ying)完好無損(sun)，電(dian)(dian)纜(lan)封(feng)端應(ying)(ying)(ying)嚴密(mi)(mi)。當外觀檢查(cha)(cha)有(you)(you)懷疑(yi)時，應(ying)(ying)(ying)進(jin)行受潮判斷或(huo)(huo)試驗。

銅芯線電(dian)(dian)線電(dian)(dian)纜(lan)耐(nai)磨(mo)(mo)損(sun)性(xing)包括兩個(ge)方(fang)面:a)護(hu)套(tao)(tao)(tao)耐(nai)磨(mo)(mo)損(sun)的(de)(de)(de)能力；b)光(guang)纜(lan)標(biao)志耐(nai)磨(mo)(mo)損(sun)的(de)(de)(de)能力。目(mu)的(de)(de)(de)：本試(shi)驗(yan)的(de)(de)(de)目(mu)的(de)(de)(de)是確定(ding)光(guang)纜(lan)護(hu)套(tao)(tao)(tao)耐(nai)磨(mo)(mo)損(sun)的(de)(de)(de)能力。試(shi)樣(yang)：試(shi)樣(yang)應是一(yi)段足以實(shi)施規定(ding)試(shi)驗(yan)的(de)(de)(de)光(guang)纜(lan)，其長度通常(chang)為750mm。電(dian)(dian)線電(dian)(dian)纜(lan)耐(nai)磨(mo)(mo)損(sun)試(shi)驗(yan)機(ji)：電(dian)(dian)線電(dian)(dian)纜(lan)護(hu)套(tao)(tao)(tao)磨(mo)(mo)損(sun)試(shi)驗(yan)機(ji)應能在(10士1) mm的(de)(de)(de)長度上，以(55士5)循環/分的(de)(de)(de)頻(pin)率，沿平行于光(guang)纜(lan)縱軸的(de)(de)(de)方(fang)向來回擦磨(mo)(mo)光(guang)纜(lan)表面。擦磨(mo)(mo)刃(ren)口來回各(ge)移動一(yi)次，構(gou)成一(yi)個(ge)循環。

專業生產銅芯線廠家電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)制(zhi)造與大多(duo)數(shu)機電(dian)(dian)(dian)(dian)產(chan)(chan)品(pin)(pin)的(de)生產(chan)(chan)方式是(shi)(shi)(shi)(shi)完全不同的(de)。機電(dian)(dian)(dian)(dian)產(chan)(chan)品(pin)(pin)通(tong)常(chang)采用將另件(jian)(jian)裝配(pei)成(cheng)部(bu)件(jian)(jian)、多(duo)個部(bu)件(jian)(jian)再(zai)裝配(pei)成(cheng)單臺(tai)產(chan)(chan)品(pin)(pin)，產(chan)(chan)品(pin)(pin)以臺(tai)數(shu)或件(jian)(jian)數(shu)計量(liang)。電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)是(shi)(shi)(shi)(shi)以長度(du)為基(ji)本計量(liang)單位。所有電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)都(dou)是(shi)(shi)(shi)(shi)從導體加工開(kai)(kai)始，在導體的(de)外圍一(yi)(yi)層(ceng)(ceng)一(yi)(yi)層(ceng)(ceng)地加上絕緣、屏蔽、、成(cheng)纜(lan)(lan)、護層(ceng)(ceng)等而制(zhi)成(cheng)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)產(chan)(chan)品(pin)(pin)。產(chan)(chan)品(pin)(pin)結構越復雜，疊(die)加的(de)層(ceng)(ceng)次就(jiu)(jiu)越多(duo)。大長度(du)連續(xu)疊(die)加組合的(de)生產(chan)(chan)方式，使生產(chan)(chan)過程(cheng)中(zhong)任(ren)何一(yi)(yi)個環節、瞬時發(fa)生一(yi)(yi)點問題(ti)，就(jiu)(jiu)會影響(xiang)整(zheng)根(gen)電(dian)(dian)(dian)(dian)纜(lan)(lan)質(zhi)量(liang)。質(zhi)量(liang)缺陷越是(shi)(shi)(shi)(shi)發(fa)生在內層(ceng)(ceng)，而且沒(mei)有及時發(fa)現終止生產(chan)(chan)，那么造成(cheng)的(de)損失就(jiu)(jiu)越大。因(yin)為電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)生產(chan)(chan)不同于組裝式的(de)產(chan)(chan)品(pin)(pin)，可以拆開(kai)(kai)重(zhong)裝及更(geng)換另件(jian)(jian)；電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)任(ren)一(yi)(yi)部(bu)件(jian)(jian)或工藝(yi)過程(cheng)的(de)質(zhi)量(liang)問題(ti)，對這根(gen)電(dian)(dian)(dian)(dian)纜(lan)(lan)幾乎是(shi)(shi)(shi)(shi)無法挽回和彌補的(de)。事后的(de)處(chu)(chu)理(li)都(dou)是(shi)(shi)(shi)(shi)十分消極的(de)，不是(shi)(shi)(shi)(shi)鋸短就(jiu)(jiu)是(shi)(shi)(shi)(shi)降級處(chu)(chu)理(li)，要么報廢整(zheng)條電(dian)(dian)(dian)(dian)纜(lan)(lan)。它(ta)無法拆開(kai)(kai)重(zhong)裝。

廣西銅芯線高壓電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)主要種類有YJV電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、VV電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、YJLV電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、VLV電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)。YJV電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)全稱交聯(lian)聚(ju)(ju)(ju)乙(yi)烯(xi)絕緣聚(ju)(ju)(ju)氯(lv)乙(yi)烯(xi)護(hu)套電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)（銅(tong)芯(xin)(xin)）VV電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)全稱聚(ju)(ju)(ju)氯(lv)乙(yi)烯(xi)絕緣聚(ju)(ju)(ju)氯(lv)乙(yi)烯(xi)護(hu)套電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)（銅(tong)芯(xin)(xin)）YJLV電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)全稱交聯(lian)聚(ju)(ju)(ju)乙(yi)烯(xi)絕緣聚(ju)(ju)(ju)氯(lv)乙(yi)烯(xi)護(hu)套鋁(lv)芯(xin)(xin)電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)VLV電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)全稱聚(ju)(ju)(ju)氯(lv)乙(yi)烯(xi)絕緣聚(ju)(ju)(ju)氯(lv)乙(yi)烯(xi)護(hu)套鋁(lv)芯(xin)(xin)電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)由于銅(tong)導(dao)體(ti)的(de)出色導(dao)電(dian)(dian)(dian)(dian)(dian)性能，越來越多(duo)的(de)工程采用(yong)銅(tong)芯(xin)(xin)電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)作(zuo)為供電(dian)(dian)(dian)(dian)(dian)系統的(de)主干道，而(er)鋁(lv)芯(xin)(xin)電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)的(de)應用(yong)則較少，尤其是在(zai)越高壓的(de)電(dian)(dian)(dian)(dian)(dian)力(li)系統中，選擇銅(tong)芯(xin)(xin)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)的(de)就越多(duo)。

廣西專業生產銅芯線廠家復(fu)工復(fu)產順利(li)推進(jin) 3月份發用電(dian)量回升(sheng)明顯(xian)，從發電(dian)看，今年(nian)前2個月全國規模以上工業發電(dian)量同比(bi)(bi)下(xia)降8.2%。其中(zhong)，火電(dian)、水電(dian)、核電(dian)、風電(dian)發電(dian)同比(bi)(bi)分(fen)別下(xia)降8.9%、11.9%、2.2%、0.2%，太陽能發電(dian)同比(bi)(bi)增長(chang)12.0%。