聚錄乙烯電線電線電纜耐磨(mo)損(sun)(sun)性包括兩個(ge)方面:a)護套(tao)耐磨(mo)損(sun)(sun)的(de)(de)(de)(de)能(neng)力；b)光(guang)(guang)(guang)纜標志耐磨(mo)損(sun)(sun)的(de)(de)(de)(de)能(neng)力。目的(de)(de)(de)(de)：本試(shi)(shi)(shi)驗(yan)的(de)(de)(de)(de)目的(de)(de)(de)(de)是確定光(guang)(guang)(guang)纜護套(tao)耐磨(mo)損(sun)(sun)的(de)(de)(de)(de)能(neng)力。試(shi)(shi)(shi)樣(yang)：試(shi)(shi)(shi)樣(yang)應是一段足以實施(shi)規定試(shi)(shi)(shi)驗(yan)的(de)(de)(de)(de)光(guang)(guang)(guang)纜，其長度通常為750mm。電線電纜耐磨(mo)損(sun)(sun)試(shi)(shi)(shi)驗(yan)機(ji)：電線電纜護套(tao)磨(mo)損(sun)(sun)試(shi)(shi)(shi)驗(yan)機(ji)應能(neng)在(10士(shi)1) mm的(de)(de)(de)(de)長度上，以(55士(shi)5)循環(huan)/分的(de)(de)(de)(de)頻率，沿平行于光(guang)(guang)(guang)纜縱(zong)軸的(de)(de)(de)(de)方向來回擦(ca)磨(mo)光(guang)(guang)(guang)纜表面。擦(ca)磨(mo)刃口來回各移動(dong)一次，構(gou)成(cheng)一個(ge)循環(huan)。

3月24日，性價比聚錄乙烯電線廠家國(guo)(guo)家(jia)(jia)電網(wang)(wang)有限公司發布了《國(guo)(guo)家(jia)(jia)電網(wang)(wang)有限公司2019社(she)會責(ze)任報告》。承諾(nuo)2020年(nian)將實現(xian)利(li)(li)潤(run)810億(yi)(yi)元(yuan)(yuan)，營收(shou)(shou)2.76萬億(yi)(yi)元(yuan)(yuan)。報告顯示，2019年(nian)，國(guo)(guo)家(jia)(jia)電網(wang)(wang)實現(xian)利(li)(li)潤(run)總額(e)770.3億(yi)(yi)元(yuan)(yuan)，營收(shou)(shou)26604.3億(yi)(yi)元(yuan)(yuan)，實現(xian)利(li)(li)稅1685.2億(yi)(yi)元(yuan)(yuan)。同(tong)時(shi)，國(guo)(guo)家(jia)(jia)電網(wang)(wang)對2020年(nian)經(jing)濟(ji)效益承諾(nuo)，2020年(nian)將實現(xian)利(li)(li)潤(run)810億(yi)(yi)元(yuan)(yuan)，營收(shou)(shou)2.76萬億(yi)(yi)元(yuan)(yuan)，發展總投入(ru)4973億(yi)(yi)元(yuan)(yuan)，其中電網(wang)(wang)投資4080億(yi)(yi)元(yuan)(yuan)（受大規(gui)模重啟(qi)的(de)特(te)高(gao)壓工程拉動，國(guo)(guo)家(jia)(jia)電網(wang)(wang)今年(nian)的(de)電網(wang)(wang)投資計劃已(yi)升至4500億(yi)(yi)元(yuan)(yuan)，增幅(fu)逾10%）。同(tong)時(shi)提出(chu)，做好新能源并(bing)網(wang)(wang)服務和(he)消(xiao)納，確保風電、光伏發電利(li)(li)用率均達到95%以上。

印度總理莫迪當地時間3日就新冠肺炎疫情發表全國電視講話，呼吁民眾在4月5日晚上9點熄燈9分鐘，以“燭光”祈福團結抗疫。然而，該建議隨后在該國引發巨大爭議，馬哈拉施特拉邦能源部長尼廷·勞特就警告說，這一措施可能導致聚錄乙烯電線電網(wang)崩(beng)潰，意味(wei)著應急服務也將受到影(ying)響。對(dui)(dui)此(ci)，據《印度斯坦時報(bao)》報(bao)道，印度電力部澄清：總理的熄燈呼吁(yu)只針對(dui)(dui)普(pu)通住(zhu)宅，不會影(ying)響電網(wang)系統。

性價比聚錄乙烯電線電(dian)(dian)(dian)纜老化原因：外(wai)力的(de)損(sun)傷(shang)(shang)(shang)。由近幾年的(de)數據分析來看，尤其是在經(jing)濟高(gao)速發(fa)展中的(de)上(shang)海，現在的(de)大多數電(dian)(dian)(dian)纜故障都是因為(wei)機械(xie)損(sun)傷(shang)(shang)(shang)引(yin)起的(de)。譬(pi)如：電(dian)(dian)(dian)纜在敷設安(an)裝(zhuang)的(de)過(guo)程(cheng)中不按照正常(chang)規范施工(gong)，容(rong)易造(zao)成機械(xie)損(sun)傷(shang)(shang)(shang)；在直埋電(dian)(dian)(dian)纜上(shang)建造(zao)施工(gong)也(ye)特別容(rong)易將運行中的(de)電(dian)(dian)(dian)纜損(sun)傷(shang)(shang)(shang)等。有時如果(guo)損(sun)傷(shang)(shang)(shang)不嚴重，要經(jing)過(guo)數年才會導致損(sun)傷(shang)(shang)(shang)部位(wei)(wei)徹底擊穿形成故障，有時破壞相(xiang)對比較嚴重的(de)可能會發(fa)生短(duan)路故障，直接影響到用電(dian)(dian)(dian)單位(wei)(wei)的(de)安(an)全。

安徽聚錄乙烯電線高(gao)壓(ya)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)主要種(zhong)類有(you)YJV電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、VV電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YJLV電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、VLV電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)。YJV電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)全(quan)稱交(jiao)聯聚乙(yi)(yi)烯絕緣(yuan)(yuan)聚氯(lv)(lv)乙(yi)(yi)烯護套電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)（銅(tong)芯(xin)）VV電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)全(quan)稱聚氯(lv)(lv)乙(yi)(yi)烯絕緣(yuan)(yuan)聚氯(lv)(lv)乙(yi)(yi)烯護套電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)（銅(tong)芯(xin)）YJLV電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)全(quan)稱交(jiao)聯聚乙(yi)(yi)烯絕緣(yuan)(yuan)聚氯(lv)(lv)乙(yi)(yi)烯護套鋁芯(xin)電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)VLV電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)全(quan)稱聚氯(lv)(lv)乙(yi)(yi)烯絕緣(yuan)(yuan)聚氯(lv)(lv)乙(yi)(yi)烯護套鋁芯(xin)電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)由于銅(tong)導體的(de)(de)出色導電(dian)(dian)(dian)(dian)性(xing)能，越(yue)來越(yue)多的(de)(de)工程采用銅(tong)芯(xin)電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)作為供電(dian)(dian)(dian)(dian)系(xi)統的(de)(de)主干道(dao)，而(er)鋁芯(xin)電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)應用則較少，尤其是在越(yue)高(gao)壓(ya)的(de)(de)電(dian)(dian)(dian)(dian)力(li)系(xi)統中，選擇銅(tong)芯(xin)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)就(jiu)越(yue)多。