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(jue)緣(yuan)電(dian)(dian)(dian)纜(lan)(lan)(lan)電(dian)(dian)(dian)線(xian)(xian)產品分為固定(ding)布線(xian)(xian)用(yong)無保護套電(dian)(dian)(dian)纜(lan)(lan)(lan)、固定(ding)布線(xian)(xian)用(yong)護套電(dian)(dian)(dian)纜(lan)(lan)(lan)、輕型無護套軟(ruan)電(dian)(dian)(dian)纜(lan)(lan)(lan)、一般(ban)用(yong)途(tu)護套軟(ruan)電(dian)(dian)(dian)纜(lan)(lan)(lan)、安裝用(yong)電(dian)(dian)(dian)纜(lan)(lan)(lan)和(he)屏蔽電(dian)(dian)(dian)線(xian)(xian)、特殊用(yong)途(tu)保護套軟(ruan)電(dian)(dian)(dian)纜(lan)(lan)(lan)、聚(ju)氯乙烯絕(jue)緣(yuan)阻燃耐火電(dian)(dian)(dian)纜(lan)(lan)(lan)等(deng)產品

歷史

電(dian)(dian)(dian)線電(dian)(dian)(dian)纜行(xing)(xing)業(ye)(ye)是(shi)我國(guo)經濟建設的(de)重要配套產(chan)業(ye)(ye)，廣(guang)泛應(ying)用于(yu)國(guo)民經濟各個領域，占據著中國(guo)電(dian)(dian)(dian)工行(xing)(xing)業(ye)(ye)1/4的(de)行(xing)(xing)業(ye)(ye)，是(shi)機械工業(ye)(ye)中僅次于(yu)汽(qi)車行(xing)(xing)業(ye)(ye)的(de)第二大產(chan)業(ye)(ye)。其中，室內裝(zhuang)修使(shi)用的(de)電(dian)(dian)(dian)線主要是(shi)額定電(dian)(dian)(dian)壓450/750v及以下聚氯乙烯(xi)絕緣(yuan)電(dian)(dian)(dian)纜，又稱電(dian)(dian)(dian)線。

電(dian)線質(zhi)量的考核主要(yao)由專業(ye)檢驗機構進(jin)行檢驗，報告中主要(yao)的技(ji)術(shu)指標有以(yi)下：

1、導(dao)體直流(liu)電(dian)(dian)阻。直接反(fan)映電(dian)(dian)線(xian)的載(zai)(zai)流(liu)能力，也就是通常所說能帶(dai)多大的負載(zai)(zai)。該(gai)指(zhi)標與導(dao)體材質、導(dao)體截面積(ji)（電(dian)(dian)線(xian)規格）也就是線(xian)徑有關

2、成品耐壓試驗。主(zhu)要考核(he)電線(xian)的(de)絕緣(yuan)是否有(you)漏電。該指標與絕緣(yuan)的(de)材料和制造工藝有(you)關

3、絕緣（護(hu)套）厚度(du)(du)及機(ji)械性能(neng)等(deng)項目。主要考(kao)核電(dian)(dian)線使(shi)(shi)用(yong)(yong)壽(shou)命及使(shi)(shi)用(yong)(yong)環(huan)境。絕緣厚度(du)(du)過薄或(huo)扁芯，容(rong)易在安裝(zhuang)或(huo)使(shi)(shi)用(yong)(yong)中在薄的位置發生破損，形(xing)成漏(lou)電(dian)(dian)。使(shi)(shi)用(yong)(yong)劣質絕緣材料的電(dian)(dian)線使(shi)(shi)用(yong)(yong)壽(shou)命短。

選購

1、首(shou)選正規(gui)廠(chang)家(jia)(jia)(jia)、商(shang)家(jia)(jia)(jia)產品(pin)。成(cheng)盤包裝的電(dian)線(xian)應有合格證(zheng)，電(dian)線(xian)本(ben)體應印有廠(chang)名(ming)或商(shang)標(biao)、電(dian)壓(ya)、3C標(biao)志(zhi)等(deng)。廠(chang)家(jia)(jia)(jia)假冒偽劣電(dian)線(xian)往往是“三無”產品(pin)，但上面卻也(ye)有模棱兩(liang)可的產地(di)等(deng)標(biao)識(shi)，如中國制造(zao)、中國某省或某市制造(zao)等(deng)，這(zhe)實際等(deng)于未(wei)標(biao)產地(di)。

2、布電(dian)線(xian)(xian)(xian)目前使(shi)(shi)用的(de)(de)(de)導(dao)體材料主要有銅(tong)和鋁(lv)。在選(xuan)購時首先應根據使(shi)(shi)用的(de)(de)(de)負載選(xuan)擇相應的(de)(de)(de)規格(ge)，如照(zhao)明線(xian)(xian)(xian)路(lu)使(shi)(shi)用1.5平方毫米的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)或2.5平方毫米的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)，如空調、微(wei)波爐、烤箱等使(shi)(shi)用2.5平方毫米的(de)(de)(de)銅(tong)線(xian)(xian)(xian)或4平方毫米的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)，選(xuan)擇合(he)適(shi)規格(ge)的(de)(de)(de)電(dian)線(xian)(xian)(xian)可避免(mian)由于小規格(ge)電(dian)線(xian)(xian)(xian)載流量不夠引起短路(lu)發生火災；其(qi)次選(xuan)購時應注意導(dao)體的(de)(de)(de)質(zhi)量，合(he)格(ge)的(de)(de)(de)銅(tong)芯(xin)電(dian)線(xian)(xian)(xian)應使(shi)(shi)用紫(zi)紅色、有光澤、手感(gan)軟(ruan)的(de)(de)(de)銅(tong)線(xian)(xian)(xian)，而(er)偽劣的(de)(de)(de)銅(tong)芯(xin)線(xian)(xian)(xian)銅(tong)芯(xin)為紫(zi)黑色、偏黃或偏白，雜志多(duo)，機(ji)械強(qiang)度差，韌勁不佳，稍用力(li)即會折斷(duan)，而(er)且如果(guo)多(duo)股銅(tong)絲常有斷(duan)線(xian)(xian)(xian)現象，使(shi)(shi)用壽命短。

3、布電(dian)(dian)(dian)線使用的外皮為聚氯(lv)乙烯絕(jue)緣(yuan)材料。合格的電(dian)(dian)(dian)線絕(jue)緣(yuan)應(ying)該外觀光滑、表(biao)面印字清晰。從電(dian)(dian)(dian)線頭觀察，絕(jue)緣(yuan)應(ying)均勻，不偏(pian)芯。有些偽(wei)劣斷線絕(jue)緣(yuan)層看(kan)上去似乎很厚實，實際上大多是用再生塑料制成(cheng)的，時間一(yi)長，絕(jue)緣(yuan)層會老(lao)化(hua)漏電(dian)(dian)(dian)。

4、質量(liang)好的電線，一般都(dou)在(zai)規(gui)定的重量(liang)范圍(wei)內。價格上，由于假(jia)冒(mao)偽劣的制作(zuo)成本低(di)，因此，商販在(zai)銷售時，常以物(wu)美價廉為幌(huang)子(zi)低(di)價銷售，讓(rang)人上當。

固(gu)定布線用聚(ju)氯乙烯絕緣無護套電(dian)纜

聚氯乙(yi)烯絕緣連接用軟線和軟電(dian)纜

固定(ding)布線用聚氯乙烯絕(jue)緣護套電纜

聚氯乙烯絕緣屏蔽(bi)電纜