国产精品成人网站/两攻一受3p双龙h调教/玩弄人妻少妇500系列/人妻换人妻仑乱/国产成人一区二区三区别

聚氯乙烯電纜

聚(ju)氯乙烯絕緣電(dian)(dian)纜(lan)(lan)(lan)(lan)電(dian)(dian)線產(chan)(chan)品(pin)(pin)分為固(gu)定(ding)布(bu)線用無保(bao)護(hu)(hu)套電(dian)(dian)纜(lan)(lan)(lan)(lan)、固(gu)定(ding)布(bu)線用護(hu)(hu)套電(dian)(dian)纜(lan)(lan)(lan)(lan)、輕型無護(hu)(hu)套軟(ruan)(ruan)電(dian)(dian)纜(lan)(lan)(lan)(lan)、一般用途護(hu)(hu)套軟(ruan)(ruan)電(dian)(dian)纜(lan)(lan)(lan)(lan)、安(an)裝用電(dian)(dian)纜(lan)(lan)(lan)(lan)和屏蔽電(dian)(dian)線、特殊用途保(bao)護(hu)(hu)套軟(ruan)(ruan)電(dian)(dian)纜(lan)(lan)(lan)(lan)、聚(ju)氯乙烯絕緣阻燃耐(nai)火電(dian)(dian)纜(lan)(lan)(lan)(lan)等產(chan)(chan)品(pin)(pin)

歷史

電(dian)線電(dian)纜行業(ye)(ye)(ye)是我國經濟建設的(de)重(zhong)要配(pei)套產業(ye)(ye)(ye)，廣泛(fan)應(ying)用于(yu)國民經濟各個領域，占據著中國電(dian)工行業(ye)(ye)(ye)1/4的(de)行業(ye)(ye)(ye)，是機械工業(ye)(ye)(ye)中僅次于(yu)汽車(che)行業(ye)(ye)(ye)的(de)第二大產業(ye)(ye)(ye)。其中，室內裝修使用的(de)電(dian)線主要是額定電(dian)壓450/750v及以下聚氯(lv)乙烯絕(jue)緣電(dian)纜，又(you)稱(cheng)電(dian)線。

電線質量的考(kao)核主(zhu)(zhu)要由專業檢(jian)驗機構進行檢(jian)驗，報告中主(zhu)(zhu)要的技(ji)術指標有以下：

1、導(dao)體直(zhi)(zhi)流電(dian)阻。直(zhi)(zhi)接(jie)反映電(dian)線的載(zai)流能(neng)力，也就(jiu)是(shi)通常(chang)所說能(neng)帶多大的負載(zai)。該指標與(yu)導(dao)體材質、導(dao)體截面積（電(dian)線規格(ge)）也就(jiu)是(shi)線徑有關

2、成品耐壓試驗(yan)。主要考核電線的絕緣(yuan)是否有漏電。該指(zhi)標與絕緣(yuan)的材料和制造工藝有關

3、絕(jue)緣(yuan)（護套）厚(hou)度及機械性能等(deng)項(xiang)目。主要考核電(dian)線(xian)使(shi)(shi)(shi)用(yong)(yong)壽(shou)(shou)命(ming)及使(shi)(shi)(shi)用(yong)(yong)環境。絕(jue)緣(yuan)厚(hou)度過薄(bo)或扁芯，容易在(zai)安(an)裝或使(shi)(shi)(shi)用(yong)(yong)中在(zai)薄(bo)的(de)位(wei)置發生破損，形(xing)成漏電(dian)。使(shi)(shi)(shi)用(yong)(yong)劣質絕(jue)緣(yuan)材(cai)料的(de)電(dian)線(xian)使(shi)(shi)(shi)用(yong)(yong)壽(shou)(shou)命(ming)短(duan)。

選購

1、首(shou)選正(zheng)規廠家、商(shang)家產(chan)品(pin)。成盤包(bao)裝的電線(xian)(xian)應有合格(ge)證，電線(xian)(xian)本體(ti)應印有廠名或(huo)商(shang)標、電壓、3C標志(zhi)等。廠家假冒偽劣電線(xian)(xian)往往是“三無”產(chan)品(pin)，但上面卻也有模棱兩(liang)可的產(chan)地(di)等標識，如中(zhong)國制造、中(zhong)國某省或(huo)某市制造等，這實(shi)際(ji)等于未標產(chan)地(di)。

2、布電(dian)線(xian)(xian)(xian)(xian)(xian)目前使用(yong)(yong)的(de)(de)導體(ti)材料主要有銅(tong)(tong)(tong)和(he)鋁(lv)(lv)。在選(xuan)購(gou)時(shi)(shi)首先應(ying)(ying)根據使用(yong)(yong)的(de)(de)負(fu)載(zai)選(xuan)擇(ze)相應(ying)(ying)的(de)(de)規格(ge)，如(ru)照明線(xian)(xian)(xian)(xian)(xian)路使用(yong)(yong)1.5平方(fang)毫米的(de)(de)鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)或(huo)2.5平方(fang)毫米的(de)(de)鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)，如(ru)空(kong)調(diao)、微波(bo)爐、烤箱等使用(yong)(yong)2.5平方(fang)毫米的(de)(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)(xian)(xian)或(huo)4平方(fang)毫米的(de)(de)鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)，選(xuan)擇(ze)合適規格(ge)的(de)(de)電(dian)線(xian)(xian)(xian)(xian)(xian)可避(bi)免(mian)由于小(xiao)規格(ge)電(dian)線(xian)(xian)(xian)(xian)(xian)載(zai)流量不夠引起短路發(fa)生火災；其次選(xuan)購(gou)時(shi)(shi)應(ying)(ying)注意導體(ti)的(de)(de)質量，合格(ge)的(de)(de)銅(tong)(tong)(tong)芯電(dian)線(xian)(xian)(xian)(xian)(xian)應(ying)(ying)使用(yong)(yong)紫(zi)紅色、有光澤(ze)、手感軟(ruan)的(de)(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)(xian)(xian)，而偽劣的(de)(de)銅(tong)(tong)(tong)芯線(xian)(xian)(xian)(xian)(xian)銅(tong)(tong)(tong)芯為紫(zi)黑色、偏(pian)黃或(huo)偏(pian)白，雜志多，機械強度差，韌勁(jing)不佳，稍用(yong)(yong)力即會折斷，而且如(ru)果(guo)多股銅(tong)(tong)(tong)絲常有斷線(xian)(xian)(xian)(xian)(xian)現象，使用(yong)(yong)壽(shou)命短。

3、布電(dian)線(xian)(xian)使(shi)用的(de)(de)外(wai)皮為聚氯乙烯(xi)絕(jue)(jue)緣(yuan)材料。合格的(de)(de)電(dian)線(xian)(xian)絕(jue)(jue)緣(yuan)應該外(wai)觀(guan)光(guang)滑、表面印字清晰。從電(dian)線(xian)(xian)頭觀(guan)察，絕(jue)(jue)緣(yuan)應均勻，不偏芯。有些偽(wei)劣斷(duan)線(xian)(xian)絕(jue)(jue)緣(yuan)層(ceng)(ceng)看上去似(si)乎很厚實，實際上大多是用再(zai)生塑料制成的(de)(de)，時間一長，絕(jue)(jue)緣(yuan)層(ceng)(ceng)會老化漏電(dian)。

4、質量好的電線，一般都在(zai)規定的重量范圍內。價(jia)格上(shang)，由于假冒偽劣的制(zhi)作成本低(di)，因此，商販在(zai)銷售(shou)時，常以(yi)物(wu)美價(jia)廉(lian)為幌子低(di)價(jia)銷售(shou)，讓人上(shang)當。

固定布線(xian)用聚氯(lv)乙烯絕(jue)緣(yuan)無護套(tao)電纜

聚(ju)氯乙烯絕緣(yuan)連接(jie)用軟(ruan)線和(he)軟(ruan)電纜

固定布線(xian)用(yong)聚(ju)氯乙烯絕(jue)緣護套電纜

聚(ju)氯乙烯絕(jue)緣屏蔽電(dian)纜