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)乙烯絕緣電(dian)纜(lan)電(dian)線(xian)(xian)產品(pin)分(fen)為固定(ding)布線(xian)(xian)用(yong)(yong)無保(bao)護(hu)(hu)套(tao)電(dian)纜(lan)、固定(ding)布線(xian)(xian)用(yong)(yong)護(hu)(hu)套(tao)電(dian)纜(lan)、輕(qing)型(xing)無護(hu)(hu)套(tao)軟(ruan)(ruan)電(dian)纜(lan)、一般用(yong)(yong)途護(hu)(hu)套(tao)軟(ruan)(ruan)電(dian)纜(lan)、安裝用(yong)(yong)電(dian)纜(lan)和(he)屏蔽電(dian)線(xian)(xian)、特(te)殊用(yong)(yong)途保(bao)護(hu)(hu)套(tao)軟(ruan)(ruan)電(dian)纜(lan)、聚氯(lv)乙烯絕緣阻(zu)燃(ran)耐(nai)火(huo)電(dian)纜(lan)等產品(pin)

歷史

電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜行業(ye)是我國經濟(ji)建設(she)的重要(yao)配(pei)套(tao)產業(ye)，廣泛應用于國民經濟(ji)各(ge)個領域，占據著中(zhong)(zhong)國電(dian)(dian)(dian)(dian)工行業(ye)1/4的行業(ye)，是機械工業(ye)中(zhong)(zhong)僅次(ci)于汽車(che)行業(ye)的第二(er)大產業(ye)。其中(zhong)(zhong)，室內裝(zhuang)修(xiu)使(shi)用的電(dian)(dian)(dian)(dian)線主要(yao)是額(e)定電(dian)(dian)(dian)(dian)壓450/750v及以下聚氯乙(yi)烯絕緣電(dian)(dian)(dian)(dian)纜，又稱電(dian)(dian)(dian)(dian)線。

電線質量的考(kao)核主要(yao)由專(zhuan)業(ye)檢(jian)(jian)驗機構進行檢(jian)(jian)驗，報告中主要(yao)的技(ji)術指標有以下：

1、導(dao)體(ti)(ti)直流電阻。直接反映(ying)電線(xian)的載流能(neng)力(li)，也就(jiu)是通常所(suo)說能(neng)帶多大(da)的負載。該指標與導(dao)體(ti)(ti)材(cai)質(zhi)、導(dao)體(ti)(ti)截面積（電線(xian)規格）也就(jiu)是線(xian)徑(jing)有關

2、成品耐壓試驗。主要考核電線(xian)的絕緣是否有(you)(you)漏電。該指標(biao)與絕緣的材料(liao)和(he)制造工藝有(you)(you)關

3、絕緣(yuan)（護套）厚度及機械性能等(deng)項目。主要考核電線(xian)使(shi)用(yong)(yong)壽(shou)(shou)命及使(shi)用(yong)(yong)環(huan)境。絕緣(yuan)厚度過薄(bo)或扁(bian)芯(xin)，容易(yi)在(zai)安(an)裝或使(shi)用(yong)(yong)中在(zai)薄(bo)的(de)位置發生破損，形成(cheng)漏(lou)電。使(shi)用(yong)(yong)劣質絕緣(yuan)材料的(de)電線(xian)使(shi)用(yong)(yong)壽(shou)(shou)命短(duan)。

選購

1、首選正規廠(chang)家(jia)、商家(jia)產(chan)品。成盤包裝的電(dian)線應有(you)合(he)格證，電(dian)線本體應印有(you)廠(chang)名或(huo)商標(biao)、電(dian)壓、3C標(biao)志等。廠(chang)家(jia)假冒(mao)偽(wei)劣(lie)電(dian)線往往是“三無(wu)”產(chan)品，但(dan)上面(mian)卻也有(you)模棱兩可的產(chan)地(di)等標(biao)識，如(ru)中(zhong)國(guo)制造、中(zhong)國(guo)某(mou)省(sheng)或(huo)某(mou)市制造等，這實際等于未標(biao)產(chan)地(di)。

2、布電線(xian)(xian)(xian)(xian)(xian)(xian)目(mu)前(qian)使(shi)用(yong)(yong)(yong)的(de)(de)導體(ti)材(cai)料主(zhu)要有銅和鋁(lv)。在選(xuan)(xuan)購(gou)時(shi)(shi)首(shou)先應根據使(shi)用(yong)(yong)(yong)的(de)(de)負載選(xuan)(xuan)擇(ze)相應的(de)(de)規格，如(ru)照明線(xian)(xian)(xian)(xian)(xian)(xian)路(lu)使(shi)用(yong)(yong)(yong)1.5平(ping)方(fang)(fang)毫(hao)米(mi)的(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)(xian)或2.5平(ping)方(fang)(fang)毫(hao)米(mi)的(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)(xian)，如(ru)空調(diao)、微波(bo)爐、烤(kao)箱等使(shi)用(yong)(yong)(yong)2.5平(ping)方(fang)(fang)毫(hao)米(mi)的(de)(de)銅線(xian)(xian)(xian)(xian)(xian)(xian)或4平(ping)方(fang)(fang)毫(hao)米(mi)的(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)(xian)，選(xuan)(xuan)擇(ze)合(he)適規格的(de)(de)電線(xian)(xian)(xian)(xian)(xian)(xian)可避免(mian)由于小規格電線(xian)(xian)(xian)(xian)(xian)(xian)載流量不(bu)夠引起短(duan)路(lu)發生(sheng)火(huo)災；其次選(xuan)(xuan)購(gou)時(shi)(shi)應注意導體(ti)的(de)(de)質量，合(he)格的(de)(de)銅芯電線(xian)(xian)(xian)(xian)(xian)(xian)應使(shi)用(yong)(yong)(yong)紫(zi)紅色(se)、有光澤、手感(gan)軟的(de)(de)銅線(xian)(xian)(xian)(xian)(xian)(xian)，而偽劣(lie)的(de)(de)銅芯線(xian)(xian)(xian)(xian)(xian)(xian)銅芯為(wei)紫(zi)黑色(se)、偏(pian)黃或偏(pian)白，雜志多(duo)，機械強度差，韌勁不(bu)佳，稍用(yong)(yong)(yong)力(li)即會折斷(duan)，而且如(ru)果多(duo)股銅絲(si)常有斷(duan)線(xian)(xian)(xian)(xian)(xian)(xian)現象，使(shi)用(yong)(yong)(yong)壽命(ming)短(duan)。

3、布電線使(shi)用的(de)(de)外(wai)皮為聚氯乙(yi)烯絕(jue)緣(yuan)材料。合格的(de)(de)電線絕(jue)緣(yuan)應該外(wai)觀(guan)(guan)光滑、表(biao)面印(yin)字清晰。從電線頭觀(guan)(guan)察，絕(jue)緣(yuan)應均勻，不偏芯(xin)。有些偽劣斷線絕(jue)緣(yuan)層看(kan)上(shang)去似乎很厚實，實際上(shang)大多是(shi)用再生塑料制成的(de)(de)，時(shi)間(jian)一長，絕(jue)緣(yuan)層會(hui)老化漏電。

4、質(zhi)量好的電(dian)線，一般(ban)都(dou)在規定的重(zhong)量范圍內。價(jia)(jia)格上，由于假冒偽劣的制(zhi)作成本低，因此，商(shang)販在銷(xiao)售(shou)時，常以物美價(jia)(jia)廉為幌子(zi)低價(jia)(jia)銷(xiao)售(shou)，讓(rang)人上當。

固定布線用(yong)聚氯(lv)乙烯絕緣無護套電纜

聚氯乙烯絕緣連接用軟線(xian)和軟電纜

固定布線用聚氯乙烯絕緣(yuan)護套電纜(lan)

聚氯乙烯絕緣屏蔽(bi)電(dian)纜