1.紫外線(UV)——不要將無紫外線防護的銅塑線電(dian)(dian)(dian)纜(lan)(lan)(lan)應(ying)(ying)用于陽(yang)光的(de)(de)直射環境內。2.熱度——電(dian)(dian)(dian)纜(lan)(lan)(lan)在(zai)(zai)金屬管道或線(xian)槽內的(de)(de)溫度很高(gao),許多(duo)聚合材料在(zai)(zai)這種(zhong)溫度下會降低使用壽命。3.水(shui)——在(zai)(zai)局(ju)(ju)域網雙(shuang)絞(jiao)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)水(shui)分會增(zeng)加(jia)電(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)電(dian)(dian)(dian)容(rong),從而(er)降低了阻抗并引起近端串擾問題(ti)。4.機械損壞(huai)(修(xiu)復費用)——光纜(lan)(lan)(lan)的(de)(de)修(xiu)復是十分昂貴的(de)(de)，在(zai)(zai)每一個間(jian)斷點至少需要(yao)兩(liang)次端接(jie)。5.接(jie)地——如果電(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)屏(ping)蔽層需要(yao)接(jie)地,則必(bi)須遵守(shou)相(xiang)應(ying)(ying)的(de)(de)標(biao)準。6.路由(you)總長度(不(bu)僅(jin)僅(jin)指樓(lou)間(jian))——大(da)樓(lou)間(jian)采用室外(wai)級的(de)(de)局(ju)(ju)域網雙(shuang)絞(jiao)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan),其(qi)總長度要(yao)限制在(zai)(zai)90米(mi)(mi)之內。對于100Mps或1000Mbps網絡，其(qi)鋪(pu)設距(ju)離不(bu)能(neng)超(chao)過這一限度。如鋪(pu)設的(de)(de)距(ju)離在(zai)(zai)100米(mi)(mi)到(dao)300米(mi)(mi)之間(jian)，則應(ying)(ying)該選擇光纜(lan)(lan)(lan)。

近年來國家大力進行城市電網建設、銅塑線農網(wang)改造及城市軌道(dao)交通的(de)(de)(de)(de)(de)建(jian)設，頒布了若干利好政(zheng)策。這些行業(ye)(ye)(ye)的(de)(de)(de)(de)(de)發(fa)展將(jiang)為上(shang)游電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)生(sheng)產(chan)企(qi)業(ye)(ye)(ye)帶(dai)來大量(liang)的(de)(de)(de)(de)(de)訂單(dan)。同時(shi)(shi)，由于因(yin)(yin)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)質(zhi)量(liang)原(yuan)(yuan)因(yin)(yin)導致的(de)(de)(de)(de)(de)火災(zai)居高不下，為防(fang)止(zhi)重(zhong)大事故的(de)(de)(de)(de)(de)再次(ci)發(fa)生(sheng)，國家(jia)在電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)行業(ye)(ye)(ye)和產(chan)品標準(zhun)(zhun)方面的(de)(de)(de)(de)(de)管控越來越嚴(yan)格(ge)(ge)，新的(de)(de)(de)(de)(de)技術標準(zhun)(zhun)不斷出臺。電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)產(chan)品的(de)(de)(de)(de)(de)成本中(zhong)原(yuan)(yuan)材(cai)料(liao)(liao)的(de)(de)(de)(de)(de)比重(zhong)在80%左右(you)，包括銅、鋁(lv)和塑料(liao)(liao)等，據相關測(ce)算，原(yuan)(yuan)材(cai)料(liao)(liao)價(jia)格(ge)(ge)每上(shang)漲(zhang)5%，相當于利潤減少4%。銅和鋁(lv)是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)生(sheng)產(chan)最(zui)重(zhong)要(yao)的(de)(de)(de)(de)(de)原(yuan)(yuan)材(cai)料(liao)(liao)，他(ta)們價(jia)格(ge)(ge)的(de)(de)(de)(de)(de)漲(zhang)跌，決(jue)定著電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)企(qi)業(ye)(ye)(ye)的(de)(de)(de)(de)(de)利潤。同時(shi)(shi)，從目前(qian)我國銅需(xu)求(qiu)的(de)(de)(de)(de)(de)結(jie)構來看，電(dian)(dian)(dian)(dian)(dian)(dian)力(li)工業(ye)(ye)(ye)所占份額最(zui)大，超(chao)過(guo)50%，主要(yao)用于電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、變壓(ya)器(qi)、開關、連(lian)接件等。其中(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)對銅的(de)(de)(de)(de)(de)需(xu)求(qiu)量(liang)占電(dian)(dian)(dian)(dian)(dian)(dian)力(li)工業(ye)(ye)(ye)的(de)(de)(de)(de)(de)90%以上(shang)。因(yin)(yin)此，電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)行業(ye)(ye)(ye)的(de)(de)(de)(de)(de)發(fa)展無(wu)疑也(ye)將(jiang)影響到(dao)銅的(de)(de)(de)(de)(de)需(xu)求(qiu)量(liang)和價(jia)格(ge)(ge)。國家(jia)電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)在2014年(nian)(nian)5月首次(ci)提(ti)出中(zhong)國經濟新常態，目前(qian)政(zheng)策有利于特(te)(te)(te)高壓(ya)建(jian)設，國家(jia)電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)2015年(nian)(nian)規劃的(de)(de)(de)(de)(de)13條線路(lu)預計能夠拉動超(chao)過(guo)3000億元(yuan)的(de)(de)(de)(de)(de)投(tou)資(zi)，另外國家(jia)電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)也(ye)借助(zhu)"一帶(dai)一路(lu)"推動特(te)(te)(te)高壓(ya)建(jian)設，因(yin)(yin)此未來五年(nian)(nian)會是(shi)(shi)特(te)(te)(te)高壓(ya)行業(ye)(ye)(ye)的(de)(de)(de)(de)(de)黃(huang)金發(fa)展周期，電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)企(qi)業(ye)(ye)(ye)也(ye)將(jiang)獲益豐厚(hou)。近日(ri)，國外知名(ming)研究網(wang)站(zhan)報道(dao)，未來5年(nian)(nian)，中(zhong)國將(jiang)進(jin)入超(chao)高壓(ya)發(fa)展的(de)(de)(de)(de)(de)黃(huang)金時(shi)(shi)代，這使中(zhong)國的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)市場(chang)以8-9%的(de)(de)(de)(de)(de)年(nian)(nian)增率發(fa)展。

浙江性價比銅塑線批發復(fu)工復(fu)產順利推進 3月(yue)份發(fa)(fa)用電(dian)(dian)(dian)(dian)(dian)量回升(sheng)明顯，從發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)看，今年前2個月(yue)全(quan)國規模以上工業發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)量同比(bi)下降8.2%。其中，火電(dian)(dian)(dian)(dian)(dian)、水(shui)電(dian)(dian)(dian)(dian)(dian)、核電(dian)(dian)(dian)(dian)(dian)、風電(dian)(dian)(dian)(dian)(dian)發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)同比(bi)分別下降8.9%、11.9%、2.2%、0.2%，太陽能(neng)發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)同比(bi)增長(chang)12.0%。

浙江上原材料價格不斷上漲，近幾年行業市場假冒偽劣、粗制濫造、偷工減料、以次充好現象屢禁不止，不僅埋下了巨大的安全隱患，也導致部分依法生產的企業及經銷商步履維艱。同時，外資企業一直稱霸高端市場，擁有的競爭優勢，給國內電線電纜企業造成了巨大的經營壓力。目前，中國線纜企業數量已突破一萬大關，且大部分是民營企業，市場競爭激烈可想而知。線纜產品良莠不齊，質量出現問題與企業自身有很大關系，因此，企業加大原輔材料采購質量控制力度，注重行業技術創新，提升產品質量。另外，亂象叢生的行業市場，不僅僅是銅塑線線纜(lan)企業(ye)(ye)自身原因造成的，與的政(zheng)治體制(zhi)和經濟發展政(zheng)策(ce)缺失(shi)也有著(zhu)莫大的關(guan)聯。線纜(lan)行業(ye)(ye)要想突(tu)破(po)迎(ying)來新生，就需(xu)要政(zheng)府和企業(ye)(ye)共同(tong)探討，制(zhi)定統一(yi)的產品標準、規(gui)范質(zhi)量、統一(yi)價格，以改變低(di)價中(zhong)標、質(zhi)量薄弱的市場(chang)現(xian)狀。行業(ye)(ye)專家建(jian)議，中(zhong)國(guo)線纜(lan)企業(ye)(ye)不能一(yi)味(wei)地要追求量的擴張，更(geng)要注(zhu)重質(zhi)的提高(gao)，加(jia)強在技術(shu)、資金、管理(li)(li)(li)等方面的合作交流(liu)，引入先進技術(shu)和管理(li)(li)(li)理(li)(li)(li)念(nian)，使企業(ye)(ye)實力(li)得(de)到快速提升，增強國(guo)際競(jing)爭力(li)。

最新發布的報告研究了微電網細分市場和商業模式的現狀和潛在的未來增長情況，提供了到2027年按細分市場和地區劃分的產能和實施支出的全球市場預測。在過去的十年中，隨著提供產品和服務的供應商數量的增加，Navigant Research跟蹤了全球主要微電網市場。“自2017年第二季度以來，銅塑線全(quan)(quan)球微(wei)電(dian)網(wang)(wang)項(xiang)(xiang)目產(chan)能得到了提升，特別是(shi)在(zai)亞太地區(qu)，開(kai)(kai)發(fa)了10,204.5兆瓦。緊(jin)隨其后的(de)是(shi)北美地區(qu)，7,779.4兆瓦，但(dan)該地區(qu)的(de)微(wei)電(dian)網(wang)(wang)項(xiang)(xiang)目數量(liang)是(shi)亞太地區(qu)的(de)兩(liang)倍，達(da)到1,105個(ge)(ge)。”截止2018年第二(er)季度，全(quan)(quan)球已跟蹤(zong)微(wei)電(dian)網(wang)(wang)項(xiang)(xiang)目數量(liang)達(da)到2,134個(ge)(ge)，累計產(chan)能達(da)到24.98吉瓦，包括正在(zai)開(kai)(kai)發(fa)中，擬議的(de)微(wei)電(dian)網(wang)(wang)容量(liang)和239個(ge)(ge)新項(xiang)(xiang)目，累計增加(jia)產(chan)能959.7兆瓦。

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，我國銅塑線電(dian)(dian)線電(dian)(dian)纜(lan)(lan)(lan)市(shi)場也(ye)受(shou)(shou)到(dao)重(zhong)(zhong)創，需求量一度下(xia)落。但是(shi)(shi)進入2018年，市(shi)場由于(yu)受(shou)(shou)到(dao)智網(wang)及寬帶(dai)工(gong)程建設有利(li)(li)促進，目前正在(zai)逐步恢復當(dang)中，但對電(dian)(dian)纜(lan)(lan)(lan)行(xing)業(ye)的利(li)(li)潤(run)緩解作用較為有限。原(yuan)(yuan)(yuan)材價格(ge)(ge)不穩定，嚴(yan)重(zhong)(zhong)積(ji)壓(ya)(ya)電(dian)(dian)纜(lan)(lan)(lan)行(xing)業(ye)的利(li)(li)潤(run)。電(dian)(dian)纜(lan)(lan)(lan)行(xing)業(ye)的特點是(shi)(shi)料重(zhong)(zhong)工(gong)輕利(li)(li)薄，當(dang)原(yuan)(yuan)(yuan)材價格(ge)(ge)上(shang)漲(zhang)時，電(dian)(dian)纜(lan)(lan)(lan)企(qi)業(ye)購買原(yuan)(yuan)(yuan)材將造成銀根吃緊，資金(jin)周轉緩慢。而(er)當(dang)原(yuan)(yuan)(yuan)材價格(ge)(ge)下(xia)跌(die)，電(dian)(dian)纜(lan)(lan)(lan)企(qi)業(ye)又回因(yin)為來(lai)不及消化原(yuan)(yuan)(yuan)材，而(er)造成出廠價急(ji)速下(xia)跌(die)。兩者(zhe)間的兩者(zhe)之間的“剪(jian)刀(dao)差”與“時間差”嚴(yan)重(zhong)(zhong)擠壓(ya)(ya)了(le)電(dian)(dian)纜(lan)(lan)(lan)企(qi)業(ye)的盈利(li)(li)空(kong)(kong)間。目前行(xing)業(ye)普遍比較認可的說法是(shi)(shi)，原(yuan)(yuan)(yuan)材價格(ge)(ge)原(yuan)(yuan)(yuan)材料價格(ge)(ge)每上(shang)漲(zhang)5%，電(dian)(dian)纜(lan)(lan)(lan)企(qi)業(ye)的相(xiang)對利(li)(li)潤(run)則將減少4%。銀行(xing)貸款利(li)(li)息(xi)的不斷(duan)增加，同樣(yang)給電(dian)(dian)纜(lan)(lan)(lan)企(qi)業(ye)的利(li)(li)潤(run)空(kong)(kong)間造成重(zhong)(zhong)大(da)影響。由于(yu)目前我國的電(dian)(dian)纜(lan)(lan)(lan)企(qi)業(ye)基本都是(shi)(shi)民(min)營企(qi)業(ye)，因(yin)此即使(shi)比較幸運能夠帶(dai)到(dao)款，但是(shi)(shi)利(li)(li)率(lv)一般也(ye)要上(shang)浮40%左后，何況(kuang)有眾多(duo)企(qi)業(ye)根本就(jiu)融不到(dao)資。融資難的問(wen)題直(zhi)接造成我國整個(ge)電(dian)(dian)纜(lan)(lan)(lan)行(xing)業(ye)的資金(jin)回籠(long)周期變(bian)慢，三角債(zhai)盛行(xing)。