珠(zhu)江低煙(yan)無鹵電(dian)纜(lan) WDZ-YJY
YJY電纜圖
手冊(ce)往(wang)往(wang)只提供了YJV電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)和BV電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)的(de)(de)(de)(de)載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)，YJY電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)和BYJ電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)的(de)(de)(de)(de)載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)是(shi)(shi)多(duo)少，怎樣查(cha)？ 我說，YJY電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)和BYJ的(de)(de)(de)(de)絕(jue)緣(yuan)(yuan)層(ceng)(ceng)與YJV是(shi)(shi)相(xiang)同(tong)的(de)(de)(de)(de)，其(qi)載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)差(cha)不多(duo)，比VV電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BV導線(xian)(xian)(xian)的(de)(de)(de)(de)載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)高(gao)。 這是(shi)(shi)為(wei)(wei)(wei)什么呢？影響電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)的(de)(de)(de)(de)外在要素許(xu)多(duo)，如敷(fu)設方法、敷(fu)設方位(wei)、環(huan)境(jing)穩(wen)度(du)等等。影響電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)的(de)(de)(de)(de)內(nei)涵要素是(shi)(shi)其(qi)原料。 內(nei)涵要素中，當(dang)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)、電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)芯(xin)線(xian)(xian)(xian)都(dou)是(shi)(shi)銅導體時，絕(jue)緣(yuan)(yuan)資料的(de)(de)(de)(de)答應長時間(jian)工作(zuo)溫(wen)(wen)度(du)是(shi)(shi)影響其(qi)載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)的(de)(de)(de)(de)要害。 YJY電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)和BYJ電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)絕(jue)緣(yuan)(yuan)層(ceng)(ceng)與YJV電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)絕(jue)緣(yuan)(yuan)層(ceng)(ceng)是(shi)(shi)同(tong)一(yi)種資料，都(dou)是(shi)(shi)YJ(交(jiao)聯(lian)聚(ju)(ju)乙(yi)(yi)(yi)烯)，其(qi)絕(jue)緣(yuan)(yuan)最高(gao)運(yun)轉溫(wen)(wen)度(du)為(wei)(wei)(wei)90℃，所以其(qi)長時間(jian)運(yun)轉載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)是(shi)(shi)根本相(xiang)同(tong)的(de)(de)(de)(de)。 而VV電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BV導線(xian)(xian)(xian)的(de)(de)(de)(de)絕(jue)緣(yuan)(yuan)層(ceng)(ceng)都(dou)是(shi)(shi)V(聚(ju)(ju)氯乙(yi)(yi)(yi)烯)，其(qi)長時間(jian)運(yun)轉載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)是(shi)(shi)根本相(xiang)同(tong)，其(qi)絕(jue)緣(yuan)(yuan)最高(gao)運(yun)轉溫(wen)(wen)度(du)為(wei)(wei)(wei)70℃，比YJ(交(jiao)聯(lian)聚(ju)(ju)乙(yi)(yi)(yi)烯)最高(gao)運(yun)轉溫(wen)(wen)度(du)低20℃，所以其(qi)載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)相(xiang)應地會小。 下(xia)(xia)面(mian)列新圖集19DX101-1《修建電(dian)(dian)(dian)(dian)(dian)(dian)氣常(chang)用數據》為(wei)(wei)(wei)例，在敷(fu)設方法（敷(fu)設在明敷(fu)導管內(nei)）、環(huan)境(jing)溫(wen)(wen)度(du)下(xia)(xia)（30℃）均相(xiang)同(tong)的(de)(de)(de)(de)條件下(xia)(xia)，銅芯(xin)YJV電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、GYJSYJ電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、GYJS電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)的(de)(de)(de)(de)載(zai)(zai)(zai)(zai)流(liu)(liu)(liu)量(liang)(liang)
可見，YJV電(dian)纜與(yu)GYJSYJ電(dian)纜的絕緣層相(xiang)(xiang)同都是YJ（交聯(lian)聚乙(yi)烯），僅僅外(wai)護套(tao)不相(xiang)(xiang)同，所以(yi)其載流(liu)量根(gen)本共同，GYJS電(dian)線(xian)的絕緣層也(ye)是YJ（交聯(lian)聚乙(yi)烯），電(dian)線(xian)比電(dian)纜少(shao)了(le)一層外(wai)護套(tao)，平(ping)等條件下，載流(liu)量稍微有些進步。相(xiang)(xiang)同的，VV電(dian)纜與(yu)BV電(dian)線(xian)也(ye)相(xiang)(xiang)同遵照(zhao)該(gai)規則，這兒不再贅述(shu)。
別的(de)，關于(yu)載流量(liang)的(de)查(cha)詢(xun)，主張直接參看電(dian)線GB/T 16895.6-2014《低壓電(dian)氣設備(bei)第5-52部分(fen)：電(dian)氣設備(bei)的(de)挑選和(he)裝(zhuang)置布線體系》，按XLPE(交聯聚乙(yi)烯(xi))、EPR（乙(yi)丙橡(xiang)膠）、PVC（聚氯乙(yi)烯(xi)）來查(cha)詢(xun)相應電(dian)纜、電(dian)線的(de)載流量(liang)。
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