具有購買力的電線電纜市場需求減少。由于全球市場經濟不景氣，我國單芯線電線電纜(lan)(lan)市(shi)場(chang)(chang)也(ye)受到重(zhong)(zhong)創(chuang)，需求量一度下落。但是(shi)進入2018年，市(shi)場(chang)(chang)由(you)于受到智網及寬(kuan)帶工程建(jian)設有利(li)促進，目前正在逐步恢復當中，但對(dui)電纜(lan)(lan)行(xing)(xing)業(ye)(ye)(ye)(ye)的(de)(de)(de)(de)(de)利(li)潤緩解(jie)作用較為有限。原(yuan)(yuan)材(cai)價(jia)(jia)格(ge)不穩(wen)定，嚴重(zhong)(zhong)積壓電纜(lan)(lan)行(xing)(xing)業(ye)(ye)(ye)(ye)的(de)(de)(de)(de)(de)利(li)潤。電纜(lan)(lan)行(xing)(xing)業(ye)(ye)(ye)(ye)的(de)(de)(de)(de)(de)特點是(shi)料(liao)重(zhong)(zhong)工輕利(li)薄，當原(yuan)(yuan)材(cai)價(jia)(jia)格(ge)上(shang)漲(zhang)時(shi)，電纜(lan)(lan)企(qi)業(ye)(ye)(ye)(ye)購買原(yuan)(yuan)材(cai)將(jiang)造成(cheng)銀(yin)根吃緊，資金(jin)周(zhou)(zhou)轉緩慢(man)。而當原(yuan)(yuan)材(cai)價(jia)(jia)格(ge)下跌，電纜(lan)(lan)企(qi)業(ye)(ye)(ye)(ye)又回(hui)(hui)因為來不及消化原(yuan)(yuan)材(cai)，而造成(cheng)出廠(chang)價(jia)(jia)急速(su)下跌。兩者(zhe)(zhe)間(jian)的(de)(de)(de)(de)(de)兩者(zhe)(zhe)之間(jian)的(de)(de)(de)(de)(de)“剪刀差”與“時(shi)間(jian)差”嚴重(zhong)(zhong)擠壓了電纜(lan)(lan)企(qi)業(ye)(ye)(ye)(ye)的(de)(de)(de)(de)(de)盈利(li)空(kong)間(jian)。目前行(xing)(xing)業(ye)(ye)(ye)(ye)普遍比(bi)較認可的(de)(de)(de)(de)(de)說法是(shi)，原(yuan)(yuan)材(cai)價(jia)(jia)格(ge)原(yuan)(yuan)材(cai)料(liao)價(jia)(jia)格(ge)每(mei)上(shang)漲(zhang)5%，電纜(lan)(lan)企(qi)業(ye)(ye)(ye)(ye)的(de)(de)(de)(de)(de)相對(dui)利(li)潤則將(jiang)減少4%。銀(yin)行(xing)(xing)貸款(kuan)利(li)息的(de)(de)(de)(de)(de)不斷增加(jia)，同樣給電纜(lan)(lan)企(qi)業(ye)(ye)(ye)(ye)的(de)(de)(de)(de)(de)利(li)潤空(kong)間(jian)造成(cheng)重(zhong)(zhong)大影響。由(you)于目前我(wo)國(guo)的(de)(de)(de)(de)(de)電纜(lan)(lan)企(qi)業(ye)(ye)(ye)(ye)基本都是(shi)民營企(qi)業(ye)(ye)(ye)(ye)，因此(ci)即使比(bi)較幸運(yun)能夠(gou)帶到款(kuan)，但是(shi)利(li)率一般也(ye)要上(shang)浮40%左(zuo)后，何況有眾多(duo)企(qi)業(ye)(ye)(ye)(ye)根本就融不到資。融資難的(de)(de)(de)(de)(de)問題直接(jie)造成(cheng)我(wo)國(guo)整個電纜(lan)(lan)行(xing)(xing)業(ye)(ye)(ye)(ye)的(de)(de)(de)(de)(de)資金(jin)回(hui)(hui)籠周(zhou)(zhou)期變慢(man)，三角債盛(sheng)行(xing)(xing)。

專業生產單芯線電(dian)線(xian)(xian)(xian)(xian)(xian)(xian)使用(yong)期限的(de)(de)長(chang)(chang)短，取決(jue)于電(dian)線(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)質量和電(dian)線(xian)(xian)(xian)(xian)(xian)(xian)安(an)裝的(de)(de)環境、使用(yong)環境。電(dian)線(xian)(xian)(xian)(xian)(xian)(xian)主要靠外面一(yi)層(ceng)包皮絕(jue)緣，時(shi)(shi)間一(yi)長(chang)(chang)，受到腐蝕性(xing)氣體的(de)(de)腐蝕，絕(jue)緣性(xing)能逐漸降低(di)，慢慢老化變硬，發(fa)(fa)脆或脫(tuo)落，這時(shi)(shi)就不起絕(jue)緣作用(yong)了(le)。家(jia)用(yong)電(dian)線(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)外表的(de)(de)絕(jue)緣層(ceng)多用(yong)塑料和橡膠制成，使用(yong)時(shi)(shi)間長(chang)(chang)了(le)就會(hui)老化，失去絕(jue)緣作用(yong)。電(dian)線(xian)(xian)(xian)(xian)(xian)(xian)失去絕(jue)緣的(de)(de)性(xing)能是很危險的(de)(de)，如(ru)果兩根電(dian)線(xian)(xian)(xian)(xian)(xian)(xian)碰在一(yi)起或火(huo)線(xian)(xian)(xian)(xian)(xian)(xian)碰到與大地相(xiang)接的(de)(de)東西，就會(hui)發(fa)(fa)生跑電(dian)現象，使局(ju)部電(dian)線(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)溫度升高，產生火(huo)花。如(ru)果電(dian)線(xian)(xian)(xian)(xian)(xian)(xian)附(fu)近有易(yi)燃物就容(rong)易(yi)引起著火(huo)，造成火(huo)災。

北京專業生產單芯線廠家復工復產順利推進 3月份發(fa)(fa)用(yong)電(dian)量回升(sheng)明(ming)顯，從發(fa)(fa)電(dian)看，今年前2個(ge)月全國規(gui)模以上工業發(fa)(fa)電(dian)量同(tong)比(bi)下(xia)降8.2%。其中，火電(dian)、水電(dian)、核電(dian)、風電(dian)發(fa)(fa)電(dian)同(tong)比(bi)分別下(xia)降8.9%、11.9%、2.2%、0.2%，太陽能發(fa)(fa)電(dian)同(tong)比(bi)增(zeng)長(chang)12.0%。

單芯線電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)耐(nai)(nai)(nai)磨(mo)損(sun)性包括兩個方面(mian):a)護套(tao)耐(nai)(nai)(nai)磨(mo)損(sun)的(de)(de)能力(li)(li)；b)光纜(lan)(lan)(lan)標志耐(nai)(nai)(nai)磨(mo)損(sun)的(de)(de)能力(li)(li)。目的(de)(de)：本試(shi)(shi)驗(yan)(yan)的(de)(de)目的(de)(de)是確(que)定光纜(lan)(lan)(lan)護套(tao)耐(nai)(nai)(nai)磨(mo)損(sun)的(de)(de)能力(li)(li)。試(shi)(shi)樣：試(shi)(shi)樣應(ying)是一段足以(yi)實(shi)施(shi)規(gui)定試(shi)(shi)驗(yan)(yan)的(de)(de)光纜(lan)(lan)(lan)，其長度通常為750mm。電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)耐(nai)(nai)(nai)磨(mo)損(sun)試(shi)(shi)驗(yan)(yan)機(ji)：電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)護套(tao)磨(mo)損(sun)試(shi)(shi)驗(yan)(yan)機(ji)應(ying)能在(10士1) mm的(de)(de)長度上(shang)，以(yi)(55士5)循環(huan)/分(fen)的(de)(de)頻率，沿平行(xing)于光纜(lan)(lan)(lan)縱軸(zhou)的(de)(de)方向(xiang)來回擦磨(mo)光纜(lan)(lan)(lan)表面(mian)。擦磨(mo)刃口(kou)來回各移動一次，構成一個循環(huan)。

北京專業生產單芯線廠家近年來，伴隨著我(wo)國(guo)(guo)經(jing)濟的(de)(de)(de)(de)(de)(de)快(kuai)速增長以(yi)及(ji)工業(ye)(ye)化(hua)、城(cheng)鎮化(hua)進程的(de)(de)(de)(de)(de)(de)加快(kuai)，我(wo)國(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)行業(ye)(ye)發展迅猛，?早于(yu)?2011?年我(wo)國(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制造(zao)業(ye)(ye)的(de)(de)(de)(de)(de)(de)產(chan)值就已超過(guo)(guo)美(mei)國(guo)(guo)，躍(yue)居(ju)全球第(di)一(yi)，國(guo)(guo)內市(shi)場產(chan)品品種滿足率(lv)達(da)?95%以(yi)上(shang)。但現階段粗放式(shi)生產(chan)仍(reng)是我(wo)國(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)行業(ye)(ye)的(de)(de)(de)(de)(de)(de)主流，仍(reng)然(ran)存(cun)在較(jiao)(jiao)為(wei)(wei)突(tu)出(chu)的(de)(de)(de)(de)(de)(de)結(jie)構失衡(heng)問題，即(ji)普通電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)產(chan)品供過(guo)(guo)于(yu)求，而高(gao)端(duan)產(chan)品供不(bu)應求。我(wo)國(guo)(guo)是世界(jie)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)第(di)一(yi)制造(zao)大(da)國(guo)(guo)，但產(chan)業(ye)(ye)發展還(huan)(huan)不(bu)成(cheng)熟、重量(liang)輕質，產(chan)業(ye)(ye)集中度(du)低，科研投入不(bu)足，創新能(neng)力較(jiao)(jiao)弱，與國(guo)(guo)外先進國(guo)(guo)家相比仍(reng)存(cun)在較(jiao)(jiao)大(da)差距(ju)，提升質量(liang)將(jiang)成(cheng)為(wei)(wei)行業(ye)(ye)今(jin)后發展的(de)(de)(de)(de)(de)(de)主要(yao)(yao)方(fang)向(xiang)。國(guo)(guo)際(ji)上(shang)對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)產(chan)業(ye)(ye)的(de)(de)(de)(de)(de)(de)產(chan)量(liang)及(ji)消費量(liang)的(de)(de)(de)(de)(de)(de)分(fen)(fen)析，一(yi)般以(yi)銅芯絕緣電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)為(wei)(wei)主，并分(fen)(fen)為(wei)(wei)動(dong)(dong)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、通信電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)和繞組線(xian)三大(da)類(lei)(lei)(與國(guo)(guo)內習慣分(fen)(fen)類(lei)(lei)有(you)所不(bu)同)，采用以(yi)美(mei)元為(wei)(wei)價(jia)(jia)值計(ji)量(liang)單位(wei)或(huo)以(yi)銅導(dao)體消耗(hao)量(liang)(重量(liang))為(wei)(wei)主要(yao)(yao)統(tong)計(ji)單位(wei)，由于(yu)價(jia)(jia)值量(liang)的(de)(de)(de)(de)(de)(de)數據包含了不(bu)同時期(qi)的(de)(de)(de)(de)(de)(de)通貨膨(peng)脹率(lv)以(yi)及(ji)材料(liao)價(jia)(jia)格的(de)(de)(de)(de)(de)(de)變(bian)動(dong)(dong)，因此采用銅導(dao)體消耗(hao)量(liang)的(de)(de)(de)(de)(de)(de)分(fen)(fen)析排除了導(dao)體價(jia)(jia)格變(bian)動(dong)(dong)的(de)(de)(de)(de)(de)(de)因素，相對(dui)而言比較(jiao)(jiao)接近實際(ji)的(de)(de)(de)(de)(de)(de)變(bian)化(hua)趨勢。1、防火(huo)性能(neng)優(you)異，耐火(huo)等(deng)級(ji)(ji)不(bu)僅(jin)滿足國(guo)(guo)際(ji)GB12666.6A類(lei)(lei)950℃ 90min 還(huan)(huan)可滿足英國(guo)(guo)BS6387-1994中規定A級(ji)(ji)650℃ 3h B級(ji)(ji)750℃ 3h C級(ji)(ji) 950℃ 3h要(yao)(yao)求 同時 在燃(ran)燒中還(huan)(huan)能(neng)耐受水(shui)噴與機(ji)械撞擊。2、燃(ran)燒時無(wu)煙無(wu)毒，絕緣采用無(wu)機(ji)材料(liao)“不(bu)燃(ran)燒體”，燃(ran)燒時不(bu)會產(chan)生任何(he)有(you)害氣(qi)體，更(geng)不(bu)會發生二(er)次污染，稱得上(shang)是環保綠色產(chan)品。3、截面(mian)(mian)能(neng)力過(guo)(guo)大(da)，電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)不(bu)僅(jin)截面(mian)(mian)流量(liang)大(da)而且具(ju)有(you)較(jiao)(jiao)大(da)的(de)(de)(de)(de)(de)(de)過(guo)(guo)載(zai)能(neng)力。根據布線(xian)要(yao)(yao)求通常電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)表面(mian)(mian)溫度(du)≤70℃?若布線(xian)不(bu)可觸(chu)摸?也(ye)不(bu)與可燃(ran)建(jian)筑材料(liao)相接觸(chu)時?電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)護套溫度(du)可達(da)105℃。過(guo)(guo)載(zai)時防火(huo)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)允許的(de)(de)(de)(de)(de)(de)工作(zuo)溫度(du)可達(da)250℃。

首先可以看到質量達標的環保電線電纜產品能夠在多種環境下使用，其用到的材料和技術工藝能夠讓這些電纜在惡劣的環境當中保持足夠的穩定性，更重要的是這些環保單芯線電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)抗腐(fu)蝕、抗電(dian)(dian)(dian)磁干(gan)擾的能力(li)(li)(li)(li)也(ye)非常令人滿意。進(jin)一步來(lai)(lai)講，備受青睞的環保(bao)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)材料擁有非常好的耐用性(xing)特點，產(chan)品扎(zha)實的材料和(he)技(ji)術(shu)工藝讓它充(chong)分(fen)達到(dao)了很多關鍵(jian)性(xing)電(dian)(dian)(dian)力(li)(li)(li)(li)產(chan)業(ye)的耐用性(xing)標準，極強的抗老化、抗氧化能力(li)(li)(li)(li)讓它可(ke)(ke)(ke)以(yi)(yi)成為(wei)當前電(dian)(dian)(dian)力(li)(li)(li)(li)產(chan)業(ye)當中(zhong)不可(ke)(ke)(ke)或缺的組成部分(fen)。另外從施(shi)(shi)工角(jiao)度可(ke)(ke)(ke)以(yi)(yi)看出來(lai)(lai)好的環保(bao)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)材料施(shi)(shi)工方法(fa)比(bi)(bi)較便捷，也(ye)就是說(shuo)這些電(dian)(dian)(dian)纜(lan)能夠(gou)以(yi)(yi)當下(xia)比(bi)(bi)較成熟(shu)的施(shi)(shi)工方法(fa)進(jin)行鋪設和(he)安(an)裝，對于提升電(dian)(dian)(dian)力(li)(li)(li)(li)設施(shi)(shi)安(an)裝施(shi)(shi)工效率和(he)性(xing)價比(bi)(bi)來(lai)(lai)說(shuo)是十分(fen)讓人滿意的。值得一提的是靠譜的技(ji)術(shu)支持也(ye)是這些環保(bao)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)品牌讓人感到(dao)可(ke)(ke)(ke)靠的關鍵(jian)。