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

聚氯(lv)乙(yi)烯(xi)絕緣電(dian)(dian)纜(lan)電(dian)(dian)線(xian)(xian)產(chan)品分為固定(ding)布(bu)線(xian)(xian)用(yong)無(wu)保護(hu)套(tao)(tao)電(dian)(dian)纜(lan)、固定(ding)布(bu)線(xian)(xian)用(yong)護(hu)套(tao)(tao)電(dian)(dian)纜(lan)、輕型無(wu)護(hu)套(tao)(tao)軟電(dian)(dian)纜(lan)、一般用(yong)途(tu)護(hu)套(tao)(tao)軟電(dian)(dian)纜(lan)、安裝用(yong)電(dian)(dian)纜(lan)和屏蔽電(dian)(dian)線(xian)(xian)、特殊用(yong)途(tu)保護(hu)套(tao)(tao)軟電(dian)(dian)纜(lan)、聚氯(lv)乙(yi)烯(xi)絕緣阻燃耐火電(dian)(dian)纜(lan)等(deng)產(chan)品

歷史

電(dian)(dian)線(xian)電(dian)(dian)纜(lan)行(xing)(xing)業(ye)(ye)是(shi)我(wo)國經濟(ji)建設的重要(yao)配套產(chan)業(ye)(ye)，廣(guang)泛應用于國民經濟(ji)各個領域，占據著中(zhong)(zhong)國電(dian)(dian)工(gong)行(xing)(xing)業(ye)(ye)1/4的行(xing)(xing)業(ye)(ye)，是(shi)機(ji)械(xie)工(gong)業(ye)(ye)中(zhong)(zhong)僅次于汽(qi)車行(xing)(xing)業(ye)(ye)的第二大(da)產(chan)業(ye)(ye)。其中(zhong)(zhong)，室內裝修使用的電(dian)(dian)線(xian)主要(yao)是(shi)額(e)定電(dian)(dian)壓450/750v及以下聚氯乙烯絕緣(yuan)電(dian)(dian)纜(lan)，又稱電(dian)(dian)線(xian)。

電(dian)線質(zhi)量(liang)的考核主要(yao)由專業檢驗機構進(jin)行檢驗，報告(gao)中主要(yao)的技(ji)術(shu)指標有(you)以下：

1、導(dao)(dao)體(ti)直流電阻。直接反映電線(xian)的(de)載(zai)流能力，也(ye)就是通常所說(shuo)能帶多大的(de)負載(zai)。該指標(biao)與導(dao)(dao)體(ti)材(cai)質、導(dao)(dao)體(ti)截面積（電線(xian)規(gui)格）也(ye)就是線(xian)徑有(you)關

2、成品(pin)耐壓試驗。主要考核電線的絕(jue)緣是否有(you)漏電。該指標與絕(jue)緣的材料和(he)制造(zao)工藝(yi)有(you)關

3、絕緣(yuan)（護套）厚(hou)度及機械(xie)性能等(deng)項目。主要考核電(dian)線使(shi)用(yong)(yong)壽命(ming)(ming)及使(shi)用(yong)(yong)環境(jing)。絕緣(yuan)厚(hou)度過薄或扁(bian)芯，容易在安(an)裝或使(shi)用(yong)(yong)中在薄的位置發生破損，形(xing)成漏電(dian)。使(shi)用(yong)(yong)劣質絕緣(yuan)材料(liao)的電(dian)線使(shi)用(yong)(yong)壽命(ming)(ming)短。

選購

1、首(shou)選(xuan)正規(gui)廠家(jia)、商家(jia)產(chan)品。成盤包裝的(de)(de)電(dian)(dian)(dian)線應有(you)(you)合(he)格證(zheng)，電(dian)(dian)(dian)線本體應印有(you)(you)廠名或(huo)商標(biao)(biao)、電(dian)(dian)(dian)壓(ya)、3C標(biao)(biao)志等(deng)。廠家(jia)假冒偽劣電(dian)(dian)(dian)線往往是“三無”產(chan)品，但(dan)上(shang)面卻(que)也有(you)(you)模棱兩可的(de)(de)產(chan)地(di)等(deng)標(biao)(biao)識，如(ru)中(zhong)國(guo)制造、中(zhong)國(guo)某(mou)省或(huo)某(mou)市制造等(deng)，這實際(ji)等(deng)于未標(biao)(biao)產(chan)地(di)。

2、布電(dian)線(xian)(xian)(xian)目前使(shi)(shi)(shi)用(yong)(yong)的導(dao)體材料主(zhu)要有(you)銅(tong)(tong)(tong)和(he)鋁(lv)。在(zai)選購時首先應(ying)(ying)根據(ju)使(shi)(shi)(shi)用(yong)(yong)的負載選擇(ze)相應(ying)(ying)的規格(ge)(ge)(ge)，如(ru)照明線(xian)(xian)(xian)路使(shi)(shi)(shi)用(yong)(yong)1.5平(ping)方(fang)毫米(mi)的鋁(lv)線(xian)(xian)(xian)或(huo)2.5平(ping)方(fang)毫米(mi)的鋁(lv)線(xian)(xian)(xian)，如(ru)空調(diao)、微波(bo)爐、烤箱等使(shi)(shi)(shi)用(yong)(yong)2.5平(ping)方(fang)毫米(mi)的銅(tong)(tong)(tong)線(xian)(xian)(xian)或(huo)4平(ping)方(fang)毫米(mi)的鋁(lv)線(xian)(xian)(xian)，選擇(ze)合適規格(ge)(ge)(ge)的電(dian)線(xian)(xian)(xian)可(ke)避免由(you)于小規格(ge)(ge)(ge)電(dian)線(xian)(xian)(xian)載流量(liang)不夠引起短(duan)路發生(sheng)火災；其次選購時應(ying)(ying)注意導(dao)體的質量(liang)，合格(ge)(ge)(ge)的銅(tong)(tong)(tong)芯(xin)電(dian)線(xian)(xian)(xian)應(ying)(ying)使(shi)(shi)(shi)用(yong)(yong)紫紅色(se)、有(you)光澤、手(shou)感軟的銅(tong)(tong)(tong)線(xian)(xian)(xian)，而偽劣的銅(tong)(tong)(tong)芯(xin)線(xian)(xian)(xian)銅(tong)(tong)(tong)芯(xin)為紫黑色(se)、偏黃或(huo)偏白(bai)，雜志多，機械強度(du)差，韌(ren)勁不佳，稍用(yong)(yong)力即(ji)會折斷，而且如(ru)果多股銅(tong)(tong)(tong)絲(si)常(chang)有(you)斷線(xian)(xian)(xian)現(xian)象，使(shi)(shi)(shi)用(yong)(yong)壽命短(duan)。

3、布電(dian)(dian)線(xian)使用的外皮為聚氯乙烯(xi)絕(jue)緣(yuan)(yuan)材(cai)料。合格的電(dian)(dian)線(xian)絕(jue)緣(yuan)(yuan)應該外觀光(guang)滑、表(biao)面(mian)印字清晰。從電(dian)(dian)線(xian)頭(tou)觀察(cha)，絕(jue)緣(yuan)(yuan)應均(jun)勻，不偏芯。有些(xie)偽(wei)劣斷線(xian)絕(jue)緣(yuan)(yuan)層看上去似乎很(hen)厚實(shi)，實(shi)際(ji)上大多是用再生塑料制成(cheng)的，時(shi)間一長，絕(jue)緣(yuan)(yuan)層會老化(hua)漏電(dian)(dian)。

4、質量好的(de)(de)(de)電線，一(yi)般都在(zai)規定的(de)(de)(de)重(zhong)量范圍(wei)內。價(jia)格上，由(you)于(yu)假冒偽劣的(de)(de)(de)制作成本低，因(yin)此(ci)，商販在(zai)銷售(shou)時，常以物美(mei)價(jia)廉為幌子低價(jia)銷售(shou)，讓人上當。

固(gu)定布線用聚氯乙烯絕緣無護套電纜

聚氯乙(yi)烯絕(jue)緣連接用軟(ruan)線和(he)軟(ruan)電纜

固定布線用聚氯(lv)乙烯絕緣護套電纜

聚氯(lv)乙烯絕(jue)緣屏蔽電纜