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)乙烯(xi)絕緣電(dian)(dian)(dian)纜(lan)電(dian)(dian)(dian)線(xian)(xian)產品分為固(gu)定(ding)布(bu)線(xian)(xian)用(yong)(yong)無保(bao)護(hu)套(tao)(tao)電(dian)(dian)(dian)纜(lan)、固(gu)定(ding)布(bu)線(xian)(xian)用(yong)(yong)護(hu)套(tao)(tao)電(dian)(dian)(dian)纜(lan)、輕型無護(hu)套(tao)(tao)軟電(dian)(dian)(dian)纜(lan)、一般用(yong)(yong)途護(hu)套(tao)(tao)軟電(dian)(dian)(dian)纜(lan)、安裝用(yong)(yong)電(dian)(dian)(dian)纜(lan)和屏蔽電(dian)(dian)(dian)線(xian)(xian)、特殊用(yong)(yong)途保(bao)護(hu)套(tao)(tao)軟電(dian)(dian)(dian)纜(lan)、聚氯(lv)乙烯(xi)絕緣阻燃(ran)耐火電(dian)(dian)(dian)纜(lan)等產品

歷史

電(dian)(dian)(dian)線電(dian)(dian)(dian)纜行業(ye)是(shi)(shi)我國經濟建(jian)設的(de)(de)重要(yao)配套產業(ye)，廣泛應用于國民經濟各個領域，占據(ju)著(zhu)中國電(dian)(dian)(dian)工行業(ye)1/4的(de)(de)行業(ye)，是(shi)(shi)機械工業(ye)中僅次于汽車行業(ye)的(de)(de)第二大產業(ye)。其中，室內裝修使用的(de)(de)電(dian)(dian)(dian)線主要(yao)是(shi)(shi)額定電(dian)(dian)(dian)壓(ya)450/750v及以下(xia)聚氯乙烯(xi)絕緣(yuan)電(dian)(dian)(dian)纜，又稱電(dian)(dian)(dian)線。

電線質(zhi)量的(de)(de)考核(he)主(zhu)要由(you)專業檢驗機構進行(xing)檢驗，報告中主(zhu)要的(de)(de)技術指標有以下：

1、導(dao)體直(zhi)流(liu)電(dian)阻。直(zhi)接(jie)反映電(dian)線(xian)(xian)的載流(liu)能力，也就是(shi)通常所說能帶多大的負載。該指(zhi)標(biao)與導(dao)體材質、導(dao)體截面積（電(dian)線(xian)(xian)規格）也就是(shi)線(xian)(xian)徑(jing)有(you)關

2、成品耐壓試驗。主要(yao)考核電(dian)線的絕緣(yuan)(yuan)是否有(you)(you)漏(lou)電(dian)。該指標(biao)與(yu)絕緣(yuan)(yuan)的材(cai)料和制造(zao)工(gong)藝有(you)(you)關

3、絕緣(yuan)（護套(tao)）厚(hou)度(du)及機械性(xing)能等項目。主要考(kao)核電(dian)線使用(yong)壽(shou)命(ming)及使用(yong)環境。絕緣(yuan)厚(hou)度(du)過薄(bo)(bo)或扁(bian)芯，容易在安裝(zhuang)或使用(yong)中在薄(bo)(bo)的位置(zhi)發生破損，形成(cheng)漏電(dian)。使用(yong)劣質絕緣(yuan)材料(liao)的電(dian)線使用(yong)壽(shou)命(ming)短(duan)。

選購

1、首(shou)選正規(gui)廠家(jia)、商家(jia)產品。成盤(pan)包裝的電(dian)(dian)線(xian)應有(you)合格證(zheng)，電(dian)(dian)線(xian)本體應印有(you)廠名或商標(biao)、電(dian)(dian)壓(ya)、3C標(biao)志等(deng)。廠家(jia)假冒偽劣電(dian)(dian)線(xian)往(wang)(wang)往(wang)(wang)是“三(san)無”產品，但上(shang)面卻也(ye)有(you)模棱兩(liang)可(ke)的產地等(deng)標(biao)識，如(ru)中國制(zhi)造(zao)、中國某(mou)省(sheng)或某(mou)市(shi)制(zhi)造(zao)等(deng)，這(zhe)實際等(deng)于未標(biao)產地。

2、布電線(xian)(xian)目(mu)前(qian)使(shi)用(yong)(yong)(yong)的(de)(de)(de)導體材料(liao)主要有銅(tong)(tong)和(he)鋁。在選購時(shi)首(shou)先應根據使(shi)用(yong)(yong)(yong)的(de)(de)(de)負(fu)載選擇(ze)相應的(de)(de)(de)規(gui)格(ge)(ge)，如照明(ming)線(xian)(xian)路使(shi)用(yong)(yong)(yong)1.5平(ping)方(fang)毫(hao)米的(de)(de)(de)鋁線(xian)(xian)或(huo)2.5平(ping)方(fang)毫(hao)米的(de)(de)(de)鋁線(xian)(xian)，如空(kong)調、微波爐、烤箱等使(shi)用(yong)(yong)(yong)2.5平(ping)方(fang)毫(hao)米的(de)(de)(de)銅(tong)(tong)線(xian)(xian)或(huo)4平(ping)方(fang)毫(hao)米的(de)(de)(de)鋁線(xian)(xian)，選擇(ze)合(he)適規(gui)格(ge)(ge)的(de)(de)(de)電線(xian)(xian)可避(bi)免由于小規(gui)格(ge)(ge)電線(xian)(xian)載流量不(bu)夠引起短路發生火(huo)災；其(qi)次選購時(shi)應注意導體的(de)(de)(de)質量，合(he)格(ge)(ge)的(de)(de)(de)銅(tong)(tong)芯電線(xian)(xian)應使(shi)用(yong)(yong)(yong)紫(zi)紅色(se)、有光(guang)澤、手感軟的(de)(de)(de)銅(tong)(tong)線(xian)(xian)，而偽劣的(de)(de)(de)銅(tong)(tong)芯線(xian)(xian)銅(tong)(tong)芯為紫(zi)黑色(se)、偏黃或(huo)偏白，雜志多，機械(xie)強(qiang)度差，韌勁不(bu)佳，稍用(yong)(yong)(yong)力即會(hui)折斷，而且如果多股銅(tong)(tong)絲常有斷線(xian)(xian)現象(xiang)，使(shi)用(yong)(yong)(yong)壽命(ming)短。

3、布(bu)電線使用(yong)的外皮為(wei)聚氯乙(yi)烯絕(jue)緣(yuan)材料(liao)。合(he)格的電線絕(jue)緣(yuan)應該外觀光滑、表面(mian)印字清晰。從電線頭觀察，絕(jue)緣(yuan)應均勻，不偏芯。有些偽劣斷線絕(jue)緣(yuan)層看上去(qu)似乎很(hen)厚實，實際上大多是用(yong)再生塑料(liao)制成的，時間一長，絕(jue)緣(yuan)層會老化(hua)漏(lou)電。

4、質(zhi)量(liang)好(hao)的電(dian)線，一般都(dou)在規定的重(zhong)量(liang)范圍內。價格上(shang)，由于假冒偽劣的制作成本低(di)，因此(ci)，商販(fan)在銷售時，常以(yi)物美價廉為幌(huang)子低(di)價銷售，讓人上(shang)當。

固定布線用(yong)聚氯乙烯絕緣無護套電纜

聚(ju)氯乙烯(xi)絕緣(yuan)連(lian)接(jie)用軟(ruan)線和(he)軟(ruan)電纜

固定(ding)布線用(yong)聚(ju)氯乙烯(xi)絕緣護套電(dian)纜

聚氯乙烯絕緣屏蔽電纜