如何選(xuan)擇電(dian)(dian)(dian)纜附(fu)(fu)件產品(pin)？（1）電(dian)(dian)(dian)氣(qi)(qi)性(xing)(xing)能(neng)(neng)(neng)。電(dian)(dian)(dian)氣(qi)(qi)性(xing)(xing)能(neng)(neng)(neng)的(de)(de)(de)好壞是評(ping)判(pan)電(dian)(dian)(dian)纜附(fu)(fu)件品(pin)質(zhi)的(de)(de)(de)首(shou)要(yao)(yao)原則。主要(yao)(yao)考慮電(dian)(dian)(dian)纜附(fu)(fu)件的(de)(de)(de)電(dian)(dian)(dian)場分布是否(fou)(fou)合理，改善(shan)電(dian)(dian)(dian)場分布的(de)(de)(de)措(cuo)施是否(fou)(fou)恰當，綠寶電(dian)(dian)(dian)纜，材料的(de)(de)(de)電(dian)(dian)(dian)氣(qi)(qi)強度、介質(zhi)損耗和產品(pin)的(de)(de)(de)絕緣裕度等。（2）密(mi)封性(xing)(xing)能(neng)(neng)(neng)。密(mi)封防(fang)潮性(xing)(xing)能(neng)(neng)(neng)直接影(ying)響電(dian)(dian)(dian)纜附(fu)(fu)件的(de)(de)(de)電(dian)(dian)(dian)氣(qi)(qi)性(xing)(xing)能(neng)(neng)(neng)和使(shi)用(yong)壽命。終端的(de)(de)(de)密(mi)封結構(gou)是否(fou)(fou)可靠(kao)、穩(wen)定(ding)。一般來說，中(zhong)間接頭(tou)也應(ying)有一個與之相匹配金屬防(fang)潮外殼，特(te)別是直埋或使(shi)用(yong)在潮濕環境(jing)中(zhong)。（3）機械性(xing)(xing)能(neng)(neng)(neng)。電(dian)(dian)(dian)纜附(fu)(fu)件應(ying)該有足夠的(de)(de)(de)抗彎、防(fang)震的(de)(de)(de)能(neng)(neng)(neng)力。中(zhong)間接頭(tou)應(ying)能(neng)(neng)(neng)承受一定(ding)的(de)(de)(de)拉力和防(fang)止外力損傷的(de)(de)(de)措(cuo)施。（4）工藝(yi)性(xing)(xing)能(neng)(neng)(neng)。工藝(yi)性(xing)(xing)能(neng)(neng)(neng)是電(dian)(dian)(dian)纜附(fu)(fu)件設計和選(xuan)型(xing)的(de)(de)(de)一個重(zhong)要(yao)(yao)的(de)(de)(de)條件，標準設計、工藝(yi)可靠(kao)，提升品(pin)質(zhi)的(de)(de)(de)重(zhong)要(yao)(yao)手段。

護(hu)套(tao)(tao)(tao)厚(hou)度(du)對(dui)電(dian)(dian)線(xian)電(dian)(dian)纜質(zhi)量常(chang)(chang)見的(de)影(ying)響(xiang)有哪些呢？1、直(zhi)(zhi)接響(xiang)到電(dian)(dian)線(xian)電(dian)(dian)纜產品(pin)正常(chang)(chang)使用時長。電(dian)(dian)線(xian)電(dian)(dian)纜在正常(chang)(chang)應(ying)用時，經(jing)常(chang)(chang)是(shi)直(zhi)(zhi)埋、浸在水(shui)里或(huo)暴露在易被腐蝕的(de)環(huan)境(jing)中。長時間(jian)浸水(shui)或(huo)受外(wai)界腐蝕，使得(de)質(zhi)量不(bu)達標(biao)的(de)護(hu)套(tao)(tao)(tao)會被擊穿，這樣(yang)電(dian)(dian)纜護(hu)套(tao)(tao)(tao)防護(hu)作用就(jiu)會失去。2、增加(jia)電(dian)(dian)線(xian)電(dian)(dian)纜鋪(pu)設(she)(she)的(de)難(nan)度(du)越來越多的(de)環(huan)境(jing)要(yao)求高壓電(dian)(dian)纜產品(pin)必須(xu)做(zuo)到外(wai)徑小(xiao)，在鋪(pu)設(she)(she)的(de)過(guo)程中需要(yao)考慮(lv)留有空隙，這樣(yang)才能散發掉電(dian)(dian)線(xian)電(dian)(dian)纜通電(dian)(dian)后產生的(de)熱量，護(hu)套(tao)(tao)(tao)厚(hou)度(du)過(guo)厚(hou)會增加(jia)鋪(pu)設(she)(she)的(de)難(nan)度(du)，所以護(hu)套(tao)(tao)(tao)的(de)厚(hou)度(du)要(yao)求嚴(yan)格(ge)符合相關的(de)標(biao)準，不(bu)然無法起到保護(hu)電(dian)(dian)線(xian)電(dian)(dian)纜的(de)作用。也(ye)不(bu)能一味的(de)追(zhui)求其(qi)厚(hou)度(du)。

而劣(lie)質電線用手能(neng)撕下(xia)或掐下(xia)來一(yi)(yi)(yi)塊；5。看燃(ran)燒。按規定(ding)電線電纜的(de)(de)(de)絕(jue)緣(yuan)(yuan)層(ceng)都(dou)具有一(yi)(yi)(yi)定(ding)的(de)(de)(de)阻燃(ran)性。剝下(xia)一(yi)(yi)(yi)段絕(jue)緣(yuan)(yuan)層(ceng)，用打火(huo)機進行點燃(ran)，離開明火(huo)后能(neng)繼續自(zi)燃(ran)的(de)(de)(de)是(shi)劣(lie)質線。6。驗厚度。截取一(yi)(yi)(yi)段絕(jue)緣(yuan)(yuan)層(ceng)，看絕(jue)緣(yuan)(yuan)層(ceng)的(de)(de)(de)斷(duan)面是(shi)否(fou)有肉眼可(ke)見的(de)(de)(de)氣(qi)孔(kong)，其線芯是(shi)否(fou)位于(yu)絕(jue)緣(yuan)(yuan)層(ceng)的(de)(de)(de)正(zheng)中(zhong)。不(bu)(bu)居(ju)中(zhong)的(de)(de)(de)是(shi)因(yin)為(wei)工藝不(bu)(bu)高(gao)而造(zao)成的(de)(de)(de)偏芯現象(xiang)，有氣(qi)孔(kong)說明使用的(de)(de)(de)絕(jue)緣(yuan)(yuan)料不(bu)(bu)合格。