什么是電(dian)力電(dian)纜(lan)?電(dian)力電(dian)纜(lan)有哪些(xie)特征(zheng)?
作(zuo)者: 發(fa)布時(shi)間:2023-03-30
電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)是(shi)用于(yu)傳輸(shu)和(he)分配電(dian)(dian)(dian)(dian)能的(de)(de)電(dian)(dian)(dian)(dian)纜(lan)(lan),電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)常用于(yu)城市(shi)地(di)下電(dian)(dian)(dian)(dian)網、發電(dian)(dian)(dian)(dian)站(zhan)引出線路、工礦企業內部(bu)供電(dian)(dian)(dian)(dian)及(ji)過(guo)江海水下輸(shu)電(dian)(dian)(dian)(dian)線。在電(dian)(dian)(dian)(dian)力(li)(li)線路中,電(dian)(dian)(dian)(dian)纜(lan)(lan)所占(zhan)比重正逐(zhu)漸(jian)增加。電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)是(shi)在電(dian)(dian)(dian)(dian)力(li)(li)系(xi)統的(de)(de)主干線路中用以(yi)(yi)傳輸(shu)和(he)分配大功率電(dian)(dian)(dian)(dian)能的(de)(de)電(dian)(dian)(dian)(dian)纜(lan)(lan)產品(pin),包括1-500KV以(yi)(yi)及(ji)以(yi)(yi)上各種電(dian)(dian)(dian)(dian)壓等級,各種絕緣的(de)(de)電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)。電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)優(you)點一、電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)擁有(you)占(zhan)地(di)更小的(de)(de)優(you)勢,傳統的(de)(de)電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)更多(duo)的(de)(de)出現(xian)在地(di)面(mian)上,形(xing)成(cheng)了蜘蛛網的(de)(de)形(xing)式,很是(shi)影響我(wo)們的(de)(de)生活,同時也(ye)不美(mei)觀。而今的(de)(de)電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)更多(duo)的(de)(de)埋于(yu)地(di)下,所以(yi)(yi)有(you)效的(de)(de)節省了地(di)面(mian)上的(de)(de)空間,同時也(ye)更為(wei)美(mei)觀。二、可靠(kao)性(xing)越來越突(tu)出,隨著(zhu)市(shi)場激烈的(de)(de)競爭,電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)性(xing)能不斷突(tu)破,尤其是(shi)可靠(kao)性(xing)方(fang)面(mian)表現(xian)更為(wei)突(tu)出,能夠(gou)應用不同...
什么是屏蔽電纜(屏蔽線)
作(zuo)者: 發(fa)布時間:2023-03-30
什么是屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)線(xian)(xian)(xian)?導(dao)(dao)線(xian)(xian)(xian)外(wai)部有導(dao)(dao)體包裹(guo)的(de)(de)(de)(de)(de)導(dao)(dao)線(xian)(xian)(xian)叫(jiao)(jiao)“屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)線(xian)(xian)(xian)”屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)線(xian)(xian)(xian)是使用(yong)金(jin)(jin)屬(shu)網狀(zhuang)編(bian)織層(ceng)把信(xin)號線(xian)(xian)(xian)包裹(guo)起來的(de)(de)(de)(de)(de)傳輸(shu)線(xian)(xian)(xian),包裹(guo)的(de)(de)(de)(de)(de)導(dao)(dao)體叫(jiao)(jiao)屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)層(ceng),一般為(wei)編(bian)織銅網或銅泊(鋁),屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)層(ceng)需要(yao)接(jie)地(di)(di),外(wai)來的(de)(de)(de)(de)(de)干(gan)擾(rao)信(xin)號可被該層(ceng)導(dao)(dao)入大地(di)(di)。屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)線(xian)(xian)(xian)是為(wei)減少外(wai)電(dian)(dian)磁場(chang)對電(dian)(dian)源(yuan)或通信(xin)線(xian)(xian)(xian)路的(de)(de)(de)(de)(de)影響(xiang)而(er)專門(men)采用(yong)的(de)(de)(de)(de)(de)一種帶(dai)金(jin)(jin)屬(shu)編(bian)織物(wu)外(wai)殼的(de)(de)(de)(de)(de)導(dao)(dao)線(xian)(xian)(xian),這種屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)線(xian)(xian)(xian)也有防止線(xian)(xian)(xian)路向外(wai)輻射電(dian)(dian)磁能的(de)(de)(de)(de)(de)作用(yong)。屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)電(dian)(dian)纜的(de)(de)(de)(de)(de)屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)層(ceng)主要(yao)由銅、鋁等(deng)非(fei)磁性(xing)材(cai)料制成,并且厚度很薄,遠(yuan)小于(yu)使用(yong)頻率上金(jin)(jin)屬(shu)材(cai)料的(de)(de)(de)(de)(de)集膚深度,屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)層(ceng)的(de)(de)(de)(de)(de)效果主要(yao)不(bu)(bu)是由于(yu)金(jin)(jin)屬(shu)體本身對電(dian)(dian)場(chang)、磁場(chang)的(de)(de)(de)(de)(de)反射、吸(xi)收(shou)而(er)產(chan)生的(de)(de)(de)(de)(de),而(er)是由于(yu)屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)層(ceng)的(de)(de)(de)(de)(de)接(jie)地(di)(di)產(chan)生的(de)(de)(de)(de)(de),接(jie)地(di)(di)的(de)(de)(de)(de)(de)形(xing)式(shi)(shi)不(bu)(bu)同將直接(jie)影響(xiang)屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)效果。對于(yu)電(dian)(dian)場(chang)、磁場(chang)屏(ping)(ping)(ping)(ping)(ping)(ping)(ping)蔽(bi)(bi)層(ceng)的(de)(de)(de)(de)(de)接(jie)地(di)(di)方式(shi)(shi)不(bu)(bu)同。可采用(yong)不(bu)(bu)接(jie)地(di)(di)...
交聯電纜和普通電纜的不同
作者: 發(fa)布時間:2023-03-30
交聯(lian)電(dian)(dian)(dian)纜(lan)通(tong)(tong)常是(shi)(shi)指(zhi)電(dian)(dian)(dian)纜(lan)絕緣層(ceng)使(shi)用交聯(lian)的(de)(de)材(cai)料。最常用的(de)(de)材(cai)料是(shi)(shi)交聯(lian)聚乙烯(xi)(XLPE )。接下來,給(gei)大家(jia)介紹一(yi)下“什么(me)叫(jiao)交聯(lian)電(dian)(dian)(dian)纜(lan),與普通(tong)(tong)電(dian)(dian)(dian)纜(lan)的(de)(de)區別是(shi)(shi)什么(me)。”一(yi)、什么(me)是(shi)(shi)交聯(lian)電(dian)(dian)(dian)纜(lan)?交聯(lian)電(dian)(dian)(dian)纜(lan)是(shi)(shi)交聯(lian)聚乙烯(xi)絕緣電(dian)(dian)(dian)纜(lan)的(de)(de)簡稱,通(tong)(tong)常是(shi)(shi)指(zhi)電(dian)(dian)(dian)纜(lan)絕緣層(ceng)使(shi)用交聯(lian)的(de)(de)材(cai)料。交聯(lian)電(dian)(dian)(dian)纜(lan)的(de)(de)“交聯(lian)”是(shi)(shi)指(zhi)電(dian)(dian)(dian)纜(lan)的(de)(de)主絕緣使(shi)用了交聯(lian)聚乙烯(xi)塑料。過(guo)程是(shi)(shi)將線(xian)狀分子結構的(de)(de)聚乙烯(xi)(PE )材(cai)料通(tong)(tong)過(guo)特定的(de)(de)加工(gong)方(fang)式制(zhi)成立體型網狀分線(xian)結構的(de)(de)交聯(lian)聚乙烯(xi)。通(tong)(tong)過(guo)將長(chang)期允(yun)許(xu)工(gong)作(zuo)溫(wen)度從70提高(gao)到90以(yi)上,將短路允(yun)許(xu)溫(wen)度溫(wen)度由140℃提高(gao)到250℃(或更(geng)高(gao)),在維持原有優異電(dian)(dian)(dian)氣性能(neng)的(de)(de)同時,大幅提高(gao)了實(shi)用性能(neng)。交聯(lian)電(dian)(dian)(dian)纜(lan)有許(xu)多交聯(lian)方(fang)法(fa)。常用的(de)(de)交聯(lian)方(fang)法(fa)有過(guo)氧化物化學、硅烷交聯(lian)...