眾所周知國家(jia)對于(yu)每一種電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠家(jia)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值(zhi)都(dou)有(you)(you)明確(que)的(de)(de)(de)(de)(de)規定(ding)，區別電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)和(he)非標電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)(de)(de)根本方(fang)法(fa)就是(shi)測(ce)量電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)在室溫20℃時的(de)(de)(de)(de)(de)直流電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值(zhi)，測(ce)量電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)與(yu)計算電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值(zhi)對比(bi)，看能(neng)否小于(yu)標準要(yao)求(電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)一定(ding)的(de)(de)(de)(de)(de)線(xian)(xian)(xian)徑(jing)、電(dian)(dian)(dian)(dian)(dian)導(dao)率(lv)、長(chang)度下不大于(yu)一定(ding)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu))，電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值(zhi)小于(yu)或(huo)等于(yu)的(de)(de)(de)(de)(de)視(shi)為(wei)符合，電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值(zhi)高壓的(de)(de)(de)(de)(de)視(shi)為(wei)非標電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)。電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)與(yu)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)(de)(de)差異沒有(you)(you)嚴(yan)肅的(de)(de)(de)(de)(de)邊界，什么牌子的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)好，但從廣意上(shang)講，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)構造(zao)較(jiao)雜(za)亂，它有(you)(you)雜(za)亂的(de)(de)(de)(de)(de)護(hu)套層(ceng)，合肥電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)，而電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)構造(zao)比(bi)較(jiao)簡樸有(you)(you)的(de)(de)(de)(de)(de)僅有(you)(you)導(dao)體和(he)絕(jue)緣(yuan)層(ceng)，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)報價(jia)，有(you)(you)的(de)(de)(de)(de)(de)只要(yao)織造(zao)涂臘(la)簡便護(hu)層(ceng)或(huo)包覆一層(ceng)輕(qing)型的(de)(de)(de)(de)(de)軟護(hu)層(ceng)。電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)(de)(de)導(dao)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)芯是(shi)用(yong)于(yu)傳輸電(dian)(dian)(dian)(dian)(dian)流的(de)(de)(de)(de)(de)。

購買(mai)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)時(shi)怎樣鑒別優(you)(you)劣(lie)呢？一(yi)要(yao)看(kan)：看(kan)有無(wu)質(zhi)(zhi)量(liang)體系(xi)認1證書(shu)；看(kan)合格(ge)證是(shi)(shi)(shi)否規范；看(kan)有無(wu)廠(chang)名、廠(chang)址、檢(jian)驗章、生產日(ri)期；看(kan)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)上是(shi)(shi)(shi)否印有商標、規格(ge)、電(dian)(dian)(dian)(dian)壓(ya)等(deng)。還要(yao)看(kan)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)銅芯(xin)的(de)(de)橫斷面，優(you)(you)等(deng)品(pin)(pin)紫(zi)銅顏色(se)光(guang)亮、色(se)澤柔和，否則便是(shi)(shi)(shi)次品(pin)(pin)。二要(yao)試：可取一(yi)根電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)頭用(yong)手反復(fu)彎曲，凡是(shi)(shi)(shi)手感(gan)柔軟、抗1疲勞強度(du)好(hao)、塑料或(huo)橡(xiang)膠(jiao)手感(gan)彈性大且電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)絕緣體上無(wu)裂痕的(de)(de)就是(shi)(shi)(shi)優(you)(you)等(deng)品(pin)(pin)。電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)是(shi)(shi)(shi)用(yong)戶在(zai)(zai)用(yong)電(dian)(dian)(dian)(dian)過程(cheng)中的(de)(de)材料，其質(zhi)(zhi)量(liang)的(de)(de)好(hao)壞(huai)，直接關系(xi)到千家萬(wan)戶的(de)(de)用(yong)電(dian)(dian)(dian)(dian)安全(quan)。因此，在(zai)(zai)購買(mai)或(huo)選用(yong)時(shi)，如何(he)快速(su)、準確檢(jian)查電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)質(zhi)(zhi)量(liang)的(de)(de)好(hao)壞(huai)，是(shi)(shi)(shi)廣(guang)大電(dian)(dian)(dian)(dian)工必須(xu)掌握的(de)(de)技(ji)能。

遇到電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)進水(shui)你是怎么解決的？一(yi)、電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)里(li)面有水(shui)的危(wei)害。一(yi)般而言(yan)，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)進水(shui)后(hou)，在電(dian)(dian)(dian)(dian)(dian)磁場的作(zuo)用下會發生“水(shui)樹(shu)老(lao)化”現象，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)損壞只會是時(shi)間問題，終會導致電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)擊穿(chuan)。二、電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)里(li)面有水(shui)的原因。1，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)敷設(she)保(bao)存(cun)時(shi)，兩端電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)頭(tou)并(bing)沒有進行密封(feng)處理或(huo)者(zhe)密封(feng)性不(bu)(bu)好，水(shui)汽滲(shen)入電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)內部。2，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)敷設(she)過(guo)程中，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)頭(tou)密封(feng)不(bu)(bu)好且(qie)浸泡(pao)在水(shui)中，或(huo)者(zhe)在穿(chuan)管敷設(she)時(shi)，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)外絕緣(yuan)皮，水(shui)滲(shen)入電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)。3，pvc電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)敷設(she)完成后(hou)，兩端的電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)頭(tou)沒有及時(shi)制作(zuo)，長(chang)期(qi)暴露(lu)在空氣中或(huo)者(zhe)潮濕環境中。4，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)供電(dian)(dian)(dian)(dian)(dian)運行過(guo)程中發生過(guo)局(ju)部電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)擊穿(chuan)，水(shui)滲(shen)入電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)。