選購家裝電線電纜需要注意哪些？

 一(yi)、家(jia)裝電(dian)線(xian)(xian)(xian)(xian)(xian)規格電(dian)線(xian)(xian)(xian)(xian)(xian)規格通常用平(ping)方(fang)來表示，電(dian)線(xian)(xian)(xian)(xian)(xian)的(de)(de)平(ping)方(fang)指銅絲(si)(si)的(de)(de)橫截面面積，根據(ju)導體結構(gou)的(de)(de)不同，電(dian)線(xian)(xian)(xian)(xian)(xian)分為單支導體硬線(xian)(xian)(xian)(xian)(xian)和多(duo)股(gu)絞合軟(ruan)線(xian)(xian)(xian)(xian)(xian)，對于(yu)多(duo)股(gu)絞合，電(dian)線(xian)(xian)(xian)(xian)(xian)的(de)(de)平(ping)方(fang)數是所有(you)銅絲(si)(si)的(de)(de)截面積之和。家(jia)裝(zhuang)電(dian)(dian)(dian)(dian)(dian)線(xian)主(zhu)(zhu)要(yao)(yao)(yao)有(you)1.5平(ping)(ping)(ping)(ping)方(fang)、2.5平(ping)(ping)(ping)(ping)方(fang)和(he)(he)4平(ping)(ping)(ping)(ping)方(fang)三種常用(yong)(yong)的(de)規格，另外還(huan)有(you)6平(ping)(ping)(ping)(ping)方(fang)和(he)(he)10平(ping)(ping)(ping)(ping)方(fang)的(de)電(dian)(dian)(dian)(dian)(dian)線(xian)，主(zhu)(zhu)要(yao)(yao)(yao)用(yong)(yong)作(zuo)進(jin)戶主(zhu)(zhu)干線(xian)，在家(jia)裝(zhuang)施工中幾乎(hu)用(yong)(yong)不到。1.5平(ping)(ping)(ping)(ping)方(fang)線(xian)：主(zhu)(zhu)要(yao)(yao)(yao)用(yong)(yong)于燈(deng)具(ju)照明(ming)和(he)(he)開關(guan)線(xian)2.5平(ping)(ping)(ping)(ping)方(fang)線(xian)：主(zhu)(zhu)要(yao)(yao)(yao)用(yong)(yong)于插座電(dian)(dian)(dian)(dian)(dian)源及(ji)常見的(de)普通電(dian)(dian)(dian)(dian)(dian)器上4平(ping)(ping)(ping)(ping)方(fang)線(xian)：重要(yao)(yao)(yao)要(yao)(yao)(yao)用(yong)(yong)于電(dian)(dian)(dian)(dian)(dian)路主(zhu)(zhu)線(xian)和(he)(he)空(kong)調等大(da)功率電(dian)(dian)(dian)(dian)(dian)器，因廚房電(dian)(dian)(dian)(dian)(dian)器比較多，而(er)且用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)量大(da)，有(you)時也會選擇4平(ping)(ping)(ping)(ping)方(fang)電(dian)(dian)(dian)(dian)(dian)線(xian)。 

二、家裝電線型(xing)號(hao)單支導體硬線有WDZ-BYJ和BV兩種型(xing)號(hao)，多股絞合軟(ruan)(ruan)線有WDZ-BYJ、BVR、RV三種型(xing)號(hao)。

WDZ-BYJ：低煙(yan)無(wu)鹵(lu)交聯聚(ju)烯(xi)烴電(dian)(dian)(dian)線(xian)(xian)（根(gen)據導體(ti)結果不同，分硬(ying)線(xian)(xian)和軟(ruan)線(xian)(xian)）BV：PVC電(dian)(dian)(dian)線(xian)(xian)，只有(you)一(yi)根(gen)銅(tong)線(xian)(xian)的單(dan)(dan)芯(xin)線(xian)(xian)，比(bi)較(jiao)硬(ying)BVR：PVC電(dian)(dian)(dian)線(xian)(xian)，好多(duo)股銅(tong)絲絞在一(yi)起的單(dan)(dan)芯(xin)線(xian)(xian)，較(jiao)軟(ruan)RV：PVC電(dian)(dian)(dian)線(xian)(xian)，更(geng)多(duo)股銅(tong)絲絞在一(yi)起的單(dan)(dan)芯(xin)線(xian)(xian)，極軟(ruan)字母B代(dai)表(biao)的含義是布線(xian)(xian)用(yong)電(dian)(dian)(dian)線(xian)(xian)，字母V代(dai)表(biao)絕(jue)緣(yuan)材料聚(ju)氯(lv)乙烯(xi)，字母R代(dai)表(biao)的含義是軟(ruan)。單支導體硬線(xian)(xian)(xian)和多(duo)股絞(jiao)合軟線(xian)(xian)(xian)都(dou)是單芯線(xian)(xian)(xian)，另外還有(you)一(yi)種(zhong)多(duo)芯線(xian)(xian)(xian)，也(ye)叫護(hu)(hu)(hu)套(tao)(tao)線(xian)(xian)(xian)，在以(yi)前家庭裝修中常(chang)用(yong)于室內走(zou)明線(xian)(xian)(xian)，可(ke)以(yi)直(zhi)接埋(mai)設(she)在墻(qiang)內或(huo)(huo)是固(gu)定在墻(qiang)上，現在已經(jing)比較少用(yong)了(le)。護(hu)(hu)(hu)套(tao)(tao)線(xian)(xian)(xian)有(you)BVVB、RVV兩(liang)種(zhong)型號(hao)：BVVB：硬護(hu)(hu)(hu)套(tao)(tao)線(xian)(xian)(xian)，兩(liang)根(gen)或(huo)(huo)者三根(gen)BV線(xian)(xian)(xian)用(yong)護(hu)(hu)(hu)套(tao)(tao)套(tao)(tao)在一(yi)起的RVV：軟護(hu)(hu)(hu)套(tao)(tao)線(xian)(xian)(xian)，兩(liang)個(ge)三根(gen)或(huo)(huo)者四根(gen)RV線(xian)(xian)(xian)用(yong)護(hu)(hu)(hu)套(tao)(tao)套(tao)(tao)在一(yi)起的。

三、家裝電線電線選購查(cha)看包裝、標示：合格證上信息是(shi)(shi)否(fou)完整，有 “CCC”認證及質(zhi)量(liang)體系(xi)認證書。看制造工藝(yi)：截取一段絕銅(tong)線，看其線芯是(shi)(shi)否(fou)位于(yu)絕緣層的(de)正中。查(cha)看銅(tong)芯質(zhi)量(liang)：優質(zhi)銅(tong)芯程紫紅色(se)，有光澤、手感軟；劣(lie)質(zhi)銅(tong)芯則偏(pian)(pian)黃、偏(pian)(pian)白或偏(pian)(pian)黑(hei)。查(cha)看電線尺寸：查(cha)看電線長度及內芯的(de)橫截面面積與標示是(shi)(shi)否(fou)一致，避免出現缺斤短(duan)兩、弄虛作(zuo)假的(de)情況。