根據UL電(dian)子線(xian)的(de)顏色分(fen)析線(xian)材的(de)用途：

1、在訂貨電子線(xian)或排(pai)線(xian)時有必(bi)要注明(ming)導線(xian)色彩

在實踐工程(cheng)(cheng)中，常常會發現電子線(xian)(xian)或(huo)線(xian)(xian)纜中的(de)線(xian)(xian)材色(se)彩不(bu)符合(he)要求(qiu)。對于(yu)一些(xie)工程(cheng)(cheng)三相照(zhao)明(ming)電子線(xian)(xian)，三相線(xian)(xian)色(se)彩相同；對于(yu)一些(xie)工程(cheng)(cheng)單(dan)相三芯照(zhao)明(ming)電纜，電線(xian)(xian)有黃(huang)色(se)、綠色(se)和赤(chi)色(se)。這是標準所不(bu)允許的(de)。此外，不(bu)應采取在電線(xian)(xian)上纏(chan)絲帶的(de)補救(jiu)措(cuo)施。因而(er)，在項目(mu)中訂貨電子線(xian)(xian)或(huo)扁平電纜時，除標明(ming)型號外，還應注明(ming)電線(xian)(xian)的(de)橫截面和色(se)彩。

2、維護地線的色彩

標準規(gui)則應運用黃色和綠色的絕緣電線(xian)。“應該”的意思是(shi)有必(bi)要(yao)，一般情(qing)況下(xia)有必(bi)要(yao)運用黃綠色絕緣電線(xian)。

3、中性線(xian)色(se)(se)(se)(se)彩(cai)標準規(gui)則(ze)中性線(xian)宜選用淡(dan)藍色(se)(se)(se)(se)絕緣導線(xian)。“宜”的(de)(de)意(yi)義是(shi)：有(you)條件的(de)(de)時分先用淺藍色(se)(se)(se)(se)。在(zai)一些國家，中性線(xian)是(shi)白(bai)色(se)(se)(se)(se)的(de)(de)。假(jia)如(ru)建筑(zhu)物因業主要求而(er)運用白(bai)色(se)(se)(se)(se)作(zuo)為同性線(xian)，則(ze)建筑(zhu)物內的(de)(de)所有(you)中性線(xian)都應為白(bai)色(se)(se)(se)(se)。假(jia)如(ru)零線(xian)的(de)(de)色(se)(se)(se)(se)彩(cai)是(shi)深(shen)藍色(se)(se)(se)(se)，那么(me)相(xiang)線(xian)的(de)(de)色(se)(se)(se)(se)彩(cai)就不能是(shi)綠色(se)(se)(se)(se)，由于在(zai)暗淡(dan)的(de)(de)光線(xian)下(xia)，深(shen)藍色(se)(se)(se)(se)和(he)綠色(se)(se)(se)(se)的(de)(de)區別不大(da)。此時，運用單相(xiang)電源(yuan)時，相(xiang)線(xian)色(se)(se)(se)(se)彩(cai)應為赤色(se)(se)(se)(se)或(huo)黃色(se)(se)(se)(se)。

4、相線色彩

應運用(yong)(yong)黃(huang)、綠、紅(hong)(hong)三(san)(san)種(zhong)色(se)(se)彩(cai)。以(yi)三(san)(san)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)房為(wei)例。三(san)(san)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)源(yuan)引進(jin)(jin)三(san)(san)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)能(neng)表(biao)(biao)箱(xiang)(xiang)(xiang)時，相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)應為(wei)黃(huang)、綠、紅(hong)(hong)三(san)(san)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)；將單(dan)(dan)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)源(yuan)引進(jin)(jin)單(dan)(dan)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)能(neng)表(biao)(biao)箱(xiang)(xiang)(xiang)時，相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)應分(fen)別運用(yong)(yong)黃(huang)、綠、紅(hong)(hong)三(san)(san)色(se)(se)。從單(dan)(dan)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)能(neng)表(biao)(biao)箱(xiang)(xiang)(xiang)引進(jin)(jin)戶用(yong)(yong)配(pei)電(dian)(dian)(dian)箱(xiang)(xiang)(xiang)的(de)(de)三(san)(san)芯(xin)護(hu)套(tao)線(xian)(xian)(xian)(xian)(xian)的(de)(de)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)色(se)(se)彩(cai)不需(xu)要與(yu)所接進(jin)(jin)線(xian)(xian)(xian)(xian)(xian)的(de)(de)色(se)(se)彩(cai)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)同。只有當用(yong)(yong)戶選(xuan)用(yong)(yong)三(san)(san)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)能(neng)表(biao)(biao)箱(xiang)(xiang)(xiang)時，三(san)(san)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)能(neng)表(biao)(biao)箱(xiang)(xiang)(xiang)引進(jin)(jin)戶用(yong)(yong)配(pei)電(dian)(dian)(dian)箱(xiang)(xiang)(xiang)的(de)(de)箱(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)色(se)(se)彩(cai)應與(yu)進(jin)(jin)入三(san)(san)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)能(neng)表(biao)(biao)箱(xiang)(xiang)(xiang)的(de)(de)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)色(se)(se)彩(cai)共同。進(jin)(jin)入2~4室戶用(yong)(yong)配(pei)電(dian)(dian)(dian)箱(xiang)(xiang)(xiang)的(de)(de)箱(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)可以(yi)是(shi)黃(huang)色(se)(se)、綠色(se)(se)、赤色(se)(se)中的(de)(de)恣意一種(zhong)，由于(yu)GB50258-96只規則當布線(xian)(xian)(xian)(xian)(xian)選(xuan)用(yong)(yong)多相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)時，要求相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)的(de)(de)色(se)(se)彩(cai)易于(yu)區別。例如，2號房用(yong)(yong)戶停電(dian)(dian)(dian)時，2號房單(dan)(dan)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)電(dian)(dian)(dian)能(neng)表(biao)(biao)的(de)(de)進(jin)(jin)線(xian)(xian)(xian)(xian)(xian)為(wei)赤色(se)(se)。只要用(yong)(yong)驗電(dian)(dian)(dian)器檢查進(jin)(jin)入建(jian)筑物的(de)(de)赤色(se)(se)相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)，即可判斷故障。由于(yu)GB50258-96只規則當接線(xian)(xian)(xian)(xian)(xian)選(xuan)用(yong)(yong)多相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)時，要求相(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)線(xian)(xian)(xian)(xian)(xian)的(de)(de)色(se)(se)彩(cai)易于(yu)區別。

從電度(du)表(biao)箱到每戶配電箱的(de)電線(xian)，住宅設計標(biao)準規則截面積不得小于10mm2。假如從家用配電箱到單相(xiang)電能(neng)(neng)表(biao)箱的(de)相(xiang)線(xian)色(se)(se)彩(cai)與單相(xiang)電能(neng)(neng)表(biao)箱進線(xian)色(se)(se)彩(cai)相(xiang)同(tong)，那么10mm2電子線(xian)有(you)必(bi)要(yao)是三種色(se)(se)彩(cai)購(gou)買(mai)。必(bi)定加大建(jian)造出資。假如按(an)圖紙施工，只(zhi)需要(yao)買(mai)一(yi)(yi)根10mm2的(de)三芯電子線(xian)，一(yi)(yi)根是淡藍色(se)(se)中(zhong)性(xing)線(xian)，一(yi)(yi)根是黃(huang)綠(lv)雙色(se)(se)的(de)PE線(xian)，第三根是黃(huang)、綠(lv)、紅三色(se)(se)中(zhong)恣(zi)意一(yi)(yi)色(se)(se)相(xiang)線(xian)。