免费看黄色片_亚洲蜜桃V妇女_国产精品9999久久久久仙踪林_FREECHINESE内射少妇

產品擴徑導(dao)(dao)線(xian)(xian)是以滿足技(ji)術(shu)(shu)條件(jian)的常規導(dao)(dao)線(xian)(xian)規格為基(ji)準，其采取擴大(da)導(dao)(dao)線(xian)(xian)外(wai)徑技(ji)術(shu)(shu)，保(bao)證電暈所要求的導(dao)(dao)線(xian)(xian)外(wai)徑前提下，減少(shao)導(dao)(dao)線(xian)(xian)的鋁截面，進而減少(shao)導(dao)(dao)線(xian)(xian)的總重(zhong)量，減少(shao)鐵塔荷載和結構重(zhong)量，極大(da)地降(jiang)低(di)線(xian)(xian)路造價。當線(xian)(xian)路電壓超過220kv這種情況發生(sheng)時，為了降(jiang)低(di)線(xian)(xian)...

  對(dui)于(yu)架(jia)空輸電線(xian)路，除了導(dao)線(xian)電阻的有功損(sun)(sun)(sun)耗(hao)(hao)外，還有電暈損(sun)(sun)(sun)耗(hao)(hao)和(he)沿絕緣子漏(lou)電所致的有功損(sun)(sun)(sun)耗(hao)(hao)；對(dui)于(yu)電纜線(xian)路，主要是介質損(sun)(sun)(sun)耗(hao)(hao)。  一般在架(jia)空線(xian)路中(zhong)，由絕緣子泄露電流而產生的有功損(sun)(sun)(sun)耗(hao)(hao)極小，可忽略不記，...

1.特(te)高(gao)壓(ya)線(xian)路(lu)特(te)高(gao)壓(ya)輸電(dian)處(chu)于超大(da)規模電(dian)力輸運系統工(gong)程中的(de)高(gao)端，特(te)高(gao)壓(ya)工(gong)程以建設“環境友好型”工(gong)程為(wei)目(mu)標，力求全面優化工(gong)程的(de)設計方案，嚴格保證電(dian)場(chang)、磁場(chang)、可聽噪(zao)聲與無線(xian)電(dian)干擾水平滿足標準(zhun)要求。采用適當(dang)的(de)擴(kuo)徑導(dao)線(xian)有(you)利于降...

交流輸(shu)電線(xian)路的電暈損(sun)失(shi)主(zhu)要(yao)與(yu)導(dao)線(xian)表(biao)面場(chang)強和(he)(he)天氣有關(guan)，根據(ju)絕緣水(shui)平要(yao)求確定(ding)了相間距(ju)離后，導(dao)線(xian)表(biao)面場(chang)強主(zhu)要(yao)與(yu)導(dao)線(xian)分(fen)(fen)裂數、分(fen)(fen)裂間距(ju)和(he)(he)子導(dao)線(xian)直(zhi)徑(jing)有關(guan)，分(fen)(fen)裂數越多，子導(dao)線(xian)直(zhi)徑(jing)越大，表(biao)面場(chang)強越小。擴徑(jing)導(dao)線(xian)通過(guo)支撐鋁線(xian)疏繞的方(fang)式(shi)擴大了導(dao)線(xian)外徑(jing)，...

擴徑導(dao)(dao)(dao)線(xian)是以滿足技術條件的常規導(dao)(dao)(dao)線(xian)規格(ge)為(wei)基(ji)準，采取擴大導(dao)(dao)(dao)線(xian)外徑技術，在保證電(dian)暈所要求的導(dao)(dao)(dao)線(xian)外徑前提下(xia)，減少導(dao)(dao)(dao)線(xian)的鋁截面，從而(er)減少導(dao)(dao)(dao)線(xian)的總重(zhong)量(liang)，減少鐵塔(ta)荷載和結構重(zhong)量(liang)，極(ji)大地降低線(xian)路造價。 產品適(shi)用(yong)于高低壓輸電(dian)線(xian)中電(dian)廠及變電(dian)站配電(dian)線(xian)...

  擴徑導線(xian)(xian)(xian)是以滿(man)足(zu)技(ji)術條件的常規導線(xian)(xian)(xian)規格為基準，采(cai)取擴大(da)導線(xian)(xian)(xian)外(wai)徑技(ji)術，在(zai)保證電暈(yun)所要(yao)求(qiu)的導線(xian)(xian)(xian)外(wai)徑前(qian)提下，減(jian)少(shao)導線(xian)(xian)(xian)的鋁截面，從而減(jian)少(shao)導線(xian)(xian)(xian)的總重量，減(jian)少(shao)鐵塔荷載和結構重量，極大(da)地(di)降低(di)線(xian)(xian)(xian)路造價。擴徑導線(xian)(xian)(xian)在(zai)超高(gao)壓和特高(gao)壓輸...

   產品擴徑導(dao)線是以滿(man)足技術(shu)條件的(de)常規導(dao)線規格為基準，其采取擴大導(dao)線外(wai)徑技術(shu)，保證電暈所要求的(de)導(dao)線外(wai)徑前提下，減(jian)(jian)少(shao)(shao)導(dao)線的(de)鋁截面，進(jin)而(er)減(jian)(jian)少(shao)(shao)導(dao)線的(de)總重量(liang)，減(jian)(jian)少(shao)(shao)鐵塔荷載和結(jie)構重量(liang)，極大地降低線路造價(jia)。&nbs...

      產(chan)品擴徑(jing)導線(xian)是以滿足技術條(tiao)件的常規(gui)導線(xian)規(gui)格為基準，其采取擴大導線(xian)外(wai)徑(jing)技術，保證電暈所要求的導線(xian)外(wai)徑(jing)前(qian)提下，減(jian)(jian)少導線(xian)的鋁截面，進而(er)減(jian)(jian)少導線(xian)的總重量，減(jian)(jian)少鐵塔荷載和...

   擴徑導(dao)(dao)(dao)線(xian)是指與截面基本相同的(de)圓線(xian)同心(xin)絞(jiao)架(jia)空導(dao)(dao)(dao)線(xian)相比，外徑擴大(da)了的(de)導(dao)(dao)(dao)線(xian)。擴徑導(dao)(dao)(dao)線(xian)類型很多(duo)，結構差異(yi)較大(da)，但根據(ju)用(yong)途可(ke)分為變電(dian)站用(yong)和輸電(dian)線(xian)路用(yong)兩類。擴徑導(dao)(dao)(dao)線(xian)具有以下特(te)點：  &n...

1.特(te)高壓(ya)線(xian)路特(te)高壓(ya)輸(shu)(shu)電處于(yu)超大規模電力(li)輸(shu)(shu)運系統工(gong)程中的(de)高端，特(te)高壓(ya)工(gong)程以建(jian)設“環境友好型”工(gong)程為目標，力(li)求全面優化工(gong)程的(de)設計(ji)方案，嚴格(ge)保證電場(chang)、磁場(chang)、可聽噪聲與無線(xian)電干(gan)擾水(shui)平滿足標準要求。采用適當的(de)擴徑導線(xian)有利(li)于(yu)降(jiang)低特(te)高壓(ya)工(gong)程投資，而且可...

  擴(kuo)徑導(dao)(dao)線(xian)是以(yi)滿足技(ji)術條件的常規導(dao)(dao)線(xian)規格為基準，采(cai)取擴(kuo)大導(dao)(dao)線(xian)外徑技(ji)術，在保證電暈所(suo)要求的導(dao)(dao)線(xian)外徑前(qian)提下(xia)，減少(shao)(shao)導(dao)(dao)線(xian)的鋁(lv)截面，從而減少(shao)(shao)導(dao)(dao)線(xian)的總重量(liang)，減少(shao)(shao)鐵(tie)塔荷載和(he)結構重量(liang)，極大地降(jiang)低(di)線(xian)路造(zao)價(jia)。  ...

  超(chao)(chao)高壓輸電(dian)(dian)(dian)線(xian)路為抑制電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)和(he)減少線(xian)路電(dian)(dian)(dian)抗(kang)所采取的(de)一(yi)種導線(xian)架設(she)方式(shi)。即每相(xiang)導線(xian)由幾根直徑較小(xiao)的(de)分導線(xian)組成，各分導線(xian)間隔一(yi)定距離并按對稱(cheng)多角形(xing)排列(lie)。超(chao)(chao)高壓輸電(dian)(dian)(dian)線(xian)路的(de)分裂導線(xian)數一(yi)般取3～4根。 分裂導線(xian)...

  對于架(jia)空輸(shu)電(dian)線路，除了導線電(dian)阻的有功(gong)(gong)損(sun)(sun)耗(hao)(hao)外，還有電(dian)暈(yun)損(sun)(sun)耗(hao)(hao)和沿絕緣(yuan)子(zi)(zi)漏電(dian)所致的有功(gong)(gong)損(sun)(sun)耗(hao)(hao)；對于電(dian)纜線路，主(zhu)要(yao)是(shi)介質損(sun)(sun)耗(hao)(hao)。   一般在架(jia)空線路中，由絕緣(yuan)子(zi)(zi)泄露(lu)電(dian)流而(er)產生的有功(gong)(gong)損(sun)(sun)耗(hao)(hao)極(ji)小，可...

按(an)用(yong)(yong)(yong)途(tu)(tu)分類：擴(kuo)徑(jing)導(dao)線(xian)(xian)(xian)按(an)用(yong)(yong)(yong)途(tu)(tu)分為兩(liang)大(da)類，一類擴(kuo)徑(jing)導(dao)線(xian)(xian)(xian)應用(yong)(yong)(yong)于變電(dian)(dian)站，另一類擴(kuo)徑(jing)導(dao)線(xian)(xian)(xian)應用(yong)(yong)(yong)于輸電(dian)(dian)線(xian)(xian)(xian)路(lu)。輸電(dian)(dian)線(xian)(xian)(xian)路(lu)用(yong)(yong)(yong)擴(kuo)徑(jing)導(dao)線(xian)(xian)(xian)為了(le)減(jian)小弧垂，降(jiang)低塔高，擴(kuo)徑(jing)導(dao)線(xian)(xian)(xian)的拉重比(bi)應與鋼(gang)芯鋁(lv)絞線(xian)(xian)(xian)相當，所以此(ci)種(zhong)擴(kuo)徑(jing)導(dao)線(xian)(xian)(xian)必須(xu)有(you)鋼(gang)芯。因為輸電(dian)(dian)線(xian)(xian)(xian)路(lu)用(yong)(yong)(yong)擴(kuo)徑(jing)導(dao)線(xian)(xian)(xian)必須(xu)采用(yong)(yong)(yong)張力架線(xian)(xian)(xian)，...

由(you)于架(jia)空(kong)(kong)線路(lu)的絕緣介質是空(kong)(kong)氣(qi)(qi)(qi)，當導(dao)線表面(mian)的電(dian)場(chang)強度超過空(kong)(kong)氣(qi)(qi)(qi)的耐(nai)壓強度時，空(kong)(kong)氣(qi)(qi)(qi)層就產生游離形成(cheng)(cheng)放電(dian)，空(kong)(kong)氣(qi)(qi)(qi)中帶(dai)電(dian)離子(zi)的移動就構(gou)成(cheng)(cheng)電(dian)暈電(dian)流。此刻，我們(men)可(ke)以聽到"滋(zi)滋(zi)"的放電(dian)聲，并可(ke)聞到氧(yang)分(fen)子(zi)被游離后又(you)結合(he)成(cheng)(cheng)臭氧(yang)（O3）的氣(qi)(qi)(qi)味(wei)，...

采取擴大導(dao)(dao)線(xian)外(wai)(wai)徑(jing)技(ji)術，在保證電(dian)暈(yun)所要(yao)求的(de)(de)導(dao)(dao)線(xian)外(wai)(wai)徑(jing)前提下(xia)，減(jian)少(shao)(shao)導(dao)(dao)線(xian)的(de)(de)鋁截面(mian)，從(cong)而減(jian)少(shao)(shao)導(dao)(dao)線(xian)的(de)(de)總重(zhong)量，減(jian)少(shao)(shao)鐵塔(ta)荷載和(he)(he)結構重(zhong)量，極大地降低(di)(di)線(xian)路造價。當線(xian)路的(de)(de)電(dian)壓超過220kv時，為了降低(di)(di)線(xian)路電(dian)抗和(he)(he)電(dian)暈(yun)損耗(hao)，通常采用擴徑(jing)導(dao)(dao)線(xian)。擴徑(jing)導(dao)(dao)線(xian)就是(shi)把普通的(de)(de)導(dao)(dao)線(xian)...

擴徑鋼芯鋁絞線(xian)特點(dian):大(da)大(da)減小(xiao)(xiao)導線(xian)表面(mian)的(de)(de)電(dian)(dian)場強(qiang)(qiang)度，從(cong)而避免電(dian)(dian)暈放電(dian)(dian)，減小(xiao)(xiao)對(dui)無線(xian)電(dian)(dian)的(de)(de)干擾。結構重(zhong)量(liang)輕(qing)，可降低(di)線(xian)路(lu)造價，而且(qie)大(da)大(da)減小(xiao)(xiao)了安裝(zhuang)敷設后(hou)的(de)(de)塑蠕伸(shen)長，減小(xiao)(xiao)導線(xian)的(de)(de)永久變形(xing)。還具有高強(qiang)(qiang)度、耐(nai)腐蝕、使用壽命長、能改善接(jie)頭的(de)(de)連接(jie)質量(liang)等特點(dian)。遼(liao)寧(ning)大(da)元(yuan)...

塑料絕(jue)(jue)緣電(dian)(dian)力電(dian)(dian)纜(lan)在塑料絕(jue)(jue)緣擠制過程中不免會產生碰傷(shang)、刮(gua)傷(shang)、壓傷(shang)、擊穿(chuan)等缺陷點，為了保證定長生產、減少廢品，同時確保成品電(dian)(dian)纜(lan)電(dian)(dian)氣性能滿足標準要(yao)求，需要(yao)尋(xun)找(zhao)合適的絕(jue)(jue)緣破(po)損修補方(fang)法(fa)。1、熱縮(suo)管(guan)修補法(fa)熱縮(suo)管(guan)修補法(fa)是把(ba)尺(chi)寸合適的熱縮(suo)管(guan)套(tao)于(yu)缺陷點，加熱...

當線路的(de)電(dian)壓超過220kv時，為(wei)了降低線路電(dian)抗和電(dian)暈損(sun)耗，通常采用擴徑導(dao)(dao)(dao)線或分裂(lie)導(dao)(dao)(dao)線，擴徑導(dao)(dao)(dao)線和分裂(lie)導(dao)(dao)(dao)線的(de)區別是：分裂(lie)導(dao)(dao)(dao)線是將(jiang)每相導(dao)(dao)(dao)線分為(wei)若干根(gen)子(zi)導(dao)(dao)(dao)線，每根(gen)之間保持一定距離(li)(一般為(wei)400mm)這樣可(ke)以使導(dao)(dao)(dao)線的(de)等效半徑增大，從而(er)檢點線路的(de)電(dian)抗...

擴徑(jing)(jing)導線(xian)(xian)(xian)在超高(gao)壓(ya)(ya)和(he)特高(gao)壓(ya)(ya)輸電(dian)(dian)工程中有很大的(de)應用(yong)(yong)空間，尤其在高(gao)海拔地(di)區有著更為(wei)廣闊(kuo)的(de)前景，擴徑(jing)(jing)鋼(gang)芯鋁絞(jiao)線(xian)(xian)(xian)LGKK適用(yong)(yong)于(yu)高(gao)低壓(ya)(ya)輸電(dian)(dian)線(xian)(xian)(xian)中電(dian)(dian)廠及變電(dian)(dian)站配(pei)電(dian)(dian)線(xian)(xian)(xian)路。當線(xian)(xian)(xian)路的(de)電(dian)(dian)壓(ya)(ya)超過220kv時，為(wei)了降低線(xian)(xian)(xian)路電(dian)(dian)抗和(he)電(dian)(dian)暈損耗，通(tong)常采用(yong)(yong)擴徑(jing)(jing)導線(xian)(xian)(xian)。擴徑(jing)(jing)導線(xian)(xian)(xian)就是...

交流輸電(dian)線(xian)(xian)路(lu)的電(dian)暈損失主要與導(dao)線(xian)(xian)表(biao)面(mian)場強(qiang)和天氣有關，根據絕緣水(shui)平要求(qiu)確定(ding)了相間(jian)距離后(hou)，導(dao)線(xian)(xian)表(biao)面(mian)場強(qiang)主要與導(dao)線(xian)(xian)分裂(lie)(lie)數、分裂(lie)(lie)間(jian)距和子(zi)導(dao)線(xian)(xian)直徑(jing)有關，分裂(lie)(lie)數越(yue)多，子(zi)導(dao)線(xian)(xian)直徑(jing)越(yue)大，表(biao)面(mian)場強(qiang)越(yue)小。擴(kuo)徑(jing)導(dao)線(xian)(xian)通(tong)過(guo)支(zhi)撐鋁線(xian)(xian)疏繞的方式(shi)擴(kuo)大了導(dao)線(xian)(xian)外徑(jing)，這樣可減小...

當線(xian)路的電壓超過(guo)220kv時，為了降(jiang)低線(xian)路電抗和(he)電暈損耗，通(tong)常采用擴(kuo)徑導(dao)線(xian)。擴(kuo)徑導(dao)線(xian)就是把普通(tong)的導(dao)線(xian)做成中(zhong)(zhong)空(kong)（里面用多股芯線(xian)和(he)支撐(cheng)層做成）或者減(jian)少其中(zhong)(zhong)部分層單線(xian)數量（使該層單線(xian)間存在一(yi)定數量空(kong)隙），最終達到增加導(dao)線(xian)的等效半(ban)徑的目的。擴(kuo)徑導(dao)線(xian)...

空(kong)(kong)心擴(kuo)徑(jing)導(dao)線(xian)的用(yong)途：1、電(dian)(dian)(dian)子(zi)(zi)行(xing)業(ye)中，可用(yong)于(yu)溫度(du)補償導(dao)線(xian)，耐低(di)溫導(dao)線(xian)，高溫加熱導(dao)線(xian)，耐老化電(dian)(dian)(dian)線(xian)及(ji)阻(zu)燃(ran)電(dian)(dian)(dian)線(xian)。2、家用(yong)電(dian)(dian)(dian)器行(xing)業(ye)中，可用(yong)于(yu)空(kong)(kong)調機(ji)，微波爐，電(dian)(dian)(dian)子(zi)(zi)消(xiao)毒柜，電(dian)(dian)(dian)飯堡，電(dian)(dian)(dian)子(zi)(zi)熱水瓶，電(dian)(dian)(dian)暖器，電(dian)(dian)(dian)烤箱，電(dian)(dian)(dian)炒鍋，燈具燈飾(shi)等的內部布線(xian)。空(kong)(kong)心擴(kuo)徑(jing)導(dao)線(xian)的特...

擴(kuo)徑(jing)(jing)(jing)導線(xian)在(zai)超高(gao)壓和特高(gao)壓輸電工(gong)程中有很大(da)的應(ying)用(yong)空間(jian)，尤(you)其在(zai)高(gao)海拔(ba)地區(qu)有著(zhu)更為(wei)廣(guang)闊的前景。擴(kuo)徑(jing)(jing)(jing)鋼芯(xin)鋁絞線(xian)LGKK適用(yong)于高(gao)低壓輸電線(xian)中電廠及變電站配電線(xian)路。擴(kuo)徑(jing)(jing)(jing)導線(xian)是以(yi)滿足技術條件的常(chang)規導線(xian)規格為(wei)基準，采取擴(kuo)大(da)導線(xian)外徑(jing)(jing)(jing)技術，在(zai)保(bao)證電暈所要求(qiu)的導...

擴(kuo)(kuo)徑導(dao)線(xian)就是把普通(tong)的(de)(de)導(dao)線(xian)做成中空（里面用(yong)多股鋼芯線(xian)和(he)支撐層做成）或者減(jian)少其中部分層單(dan)線(xian)數量（使(shi)該(gai)層單(dan)線(xian)間存在(zai)一定數量空隙(xi)），最終達到增(zeng)加導(dao)線(xian)的(de)(de)等效半(ban)徑的(de)(de)目的(de)(de)。當(dang)線(xian)路的(de)(de)電(dian)壓超過(guo)220KV時，為了降(jiang)低線(xian)路電(dian)抗和(he)電(dian)暈損(sun)耗，通(tong)常采用(yong)擴(kuo)(kuo)徑導(dao)線(xian)。擴(kuo)(kuo)徑導(dao)...

擴徑(jing)導(dao)(dao)線(xian)(xian)線(xian)(xian)膨脹系(xi)數較好(hao)，電(dian)暈(yun)(yun)損(sun)失小(xiao)，有良好(hao)的(de)散(san)熱性。適用于(yu)高低壓輸電(dian)線(xian)(xian)中(zhong)電(dian)廠及(ji)變(bian)電(dian)站配電(dian)線(xian)(xian)路、母線(xian)(xian)等。減少(shao)電(dian)暈(yun)(yun)損(sun)失，節約有色(se)金屬。擴徑(jing)導(dao)(dao)線(xian)(xian)就(jiu)是把普(pu)通的(de)導(dao)(dao)線(xian)(xian)做成中(zhong)空(kong)（里面用多股芯(xin)線(xian)(xian)和(he)支撐層(ceng)(ceng)做成）或者(zhe)減少(shao)其(qi)中(zhong)部(bu)分層(ceng)(ceng)單線(xian)(xian)數量（使該層(ceng)(ceng)單線(xian)(xian)間存(cun)在一定...

擴徑導線(xian)(xian)(xian)適用于(yu)高低壓輸(shu)電(dian)線(xian)(xian)(xian)中電(dian)廠及變(bian)電(dian)站配電(dian)線(xian)(xian)(xian)路、母線(xian)(xian)(xian)等。減少電(dian)暈損失(shi)，節約有色金屬，線(xian)(xian)(xian)膨脹(zhang)系數較好，電(dian)暈損失(shi)小，有良好的(de)散熱性。一般在(zai)架(jia)空線(xian)(xian)(xian)路中，由絕緣子泄露電(dian)流而(er)產生的(de)有功損耗(hao)極小，可忽(hu)略不記，所以對(dui)架(jia)空線(xian)(xian)(xian)路主要考慮電(dian)暈損耗(hao)。由于(yu)架(jia)空線(xian)(xian)(xian)...

擴徑導(dao)線(xian)(xian)線(xian)(xian)膨脹(zhang)系數較好(hao)，電(dian)暈(yun)損失小，有(you)(you)良好(hao)的散(san)熱性。適用于高低(di)壓輸電(dian)線(xian)(xian)中電(dian)廠及變(bian)電(dian)站(zhan)配電(dian)線(xian)(xian)路(lu)、母線(xian)(xian)等。減少電(dian)暈(yun)損失，節約有(you)(you)色金屬。對于架空輸電(dian)線(xian)(xian)路(lu)，除了導(dao)線(xian)(xian)電(dian)阻的有(you)(you)功損耗(hao)外，還有(you)(you)電(dian)暈(yun)損耗(hao)和沿絕緣子(zi)漏電(dian)所致的有(you)(you)功損耗(hao)；對于電(dian)纜(lan)線(xian)(xian)路(lu)，主(zhu)要是(shi)介質...

PVC聚氯乙烯(xi)（以下簡(jian)稱PVC）絕緣材料是在PVC粉中添加穩定劑、增塑劑、阻燃劑、潤滑劑及其它(ta)助劑的混合物。針對(dui)電線電纜不(bu)同應(ying)用與(yu)不(bu)同的特性需求,其配方做相應(ying)的調整。經(jing)過幾十年(nian)的生產和使用，目前PVC制造及加工技術已(yi)經(jing)非(fei)常成熟(shu)。PV...

對(dui)于(yu)(yu)架空(kong)輸(shu)電(dian)(dian)(dian)線(xian)路(lu)(lu)，除(chu)了導(dao)線(xian)電(dian)(dian)(dian)阻的(de)有(you)功(gong)(gong)(gong)損耗(hao)(hao)外，還有(you)電(dian)(dian)(dian)暈(yun)損耗(hao)(hao)和沿(yan)絕緣(yuan)子漏電(dian)(dian)(dian)所致的(de)有(you)功(gong)(gong)(gong)損耗(hao)(hao)；對(dui)于(yu)(yu)電(dian)(dian)(dian)纜線(xian)路(lu)(lu)，主(zhu)(zhu)要是介質損耗(hao)(hao)。一般(ban)在架空(kong)線(xian)路(lu)(lu)中，由(you)(you)絕緣(yuan)子泄(xie)露電(dian)(dian)(dian)流(liu)而產生(sheng)的(de)有(you)功(gong)(gong)(gong)損耗(hao)(hao)極小，可忽(hu)略不(bu)記，所以對(dui)架空(kong)線(xian)路(lu)(lu)主(zhu)(zhu)要考慮(lv)電(dian)(dian)(dian)暈(yun)損耗(hao)(hao)。由(you)(you)于(yu)(yu)架空(kong)線(xian)路(lu)(lu)的(de)絕緣(yuan)介質是...

我國電(dian)(dian)網改造工作中，有不少地區采用了地埋(mai)電(dian)(dian)纜(lan)。盡管聚氯乙稀絕緣塑料電(dian)(dian)纜(lan)具(ju)有較好的化學穩定(ding)性能，并(bing)具(ju)有不占農田、運行安全、降低線損等(deng)許多優點，但(dan)長(chang)期使用后(hou)，由(you)于多種原因，地埋(mai)電(dian)(dian)線產生故障現象(xiang)逐漸增(zeng)多。據了解，敷設一年(nian)以上的地埋(mai)線，許多供電(dian)(dian)所轄...

屏蔽(bi)是(shi)為了(le)保(bao)證在(zai)(zai)有電磁(ci)(ci)干(gan)擾環境(jing)下系(xi)統(tong)的(de)傳輸性(xing)能(neng)(neng)，這(zhe)里的(de)抗干(gan)擾性(xing)應包括兩(liang)個方面，即抵(di)御(yu)外(wai)來電磁(ci)(ci)干(gan)擾的(de)能(neng)(neng)力(li)以及系(xi)統(tong)本身向外(wai)輻射電磁(ci)(ci)干(gan)擾的(de)能(neng)(neng)力(li)。理(li)論上講，在(zai)(zai)線纜和連(lian)接件(jian)外(wai)表包上一(yi)層金屬材(cai)料屏蔽(bi)層，可(ke)以有效地濾除不必要的(de)電磁(ci)(ci)波（這(zhe)也是(shi)目前絕大(da)多數屏...

根(gen)據輸送容量確定導線(xian)(xian)(xian)截面，根(gen)據電(dian)磁環境控制指標確定導線(xian)(xian)(xian)外徑，在導線(xian)(xian)(xian)截面和外徑明確后考(kao)慮擴徑方式。在選擇擴徑方式時，首先要考(kao)慮經濟性。初步(bu)計算，同樣是630K720，疏(shu)絞型(xing)擴徑導線(xian)(xian)(xian)的造(zao)價(jia)低于高(gao)密度聚乙烯(xi)支撐型(xing)擴徑導線(xian)(xian)(xian)，且弧(hu)垂特性較優則工(gong)程造(zao)價(jia)...

對(dui)于(yu)架空輸電(dian)(dian)(dian)線(xian)路(lu)，除了導線(xian)電(dian)(dian)(dian)阻的(de)(de)(de)有(you)(you)功(gong)(gong)損(sun)耗(hao)外(wai)，還有(you)(you)電(dian)(dian)(dian)暈損(sun)耗(hao)和沿絕緣(yuan)(yuan)子漏電(dian)(dian)(dian)所(suo)(suo)致的(de)(de)(de)有(you)(you)功(gong)(gong)損(sun)耗(hao)；對(dui)于(yu)電(dian)(dian)(dian)纜(lan)線(xian)路(lu)，主(zhu)要是介質損(sun)耗(hao)。一般在架空線(xian)路(lu)中，由(you)絕緣(yuan)(yuan)子泄露電(dian)(dian)(dian)流而產(chan)生的(de)(de)(de)有(you)(you)功(gong)(gong)損(sun)耗(hao)極小，可忽(hu)略不(bu)記，所(suo)(suo)以對(dui)架空線(xian)路(lu)主(zhu)要考慮電(dian)(dian)(dian)暈損(sun)耗(hao)。由(you)于(yu)架空線(xian)路(lu)的(de)(de)(de)絕緣(yuan)(yuan)介質是...

電(dian)線電(dian)纜(lan)(lan)老(lao)化故障的(de)(de)原(yuan)(yuan)(yuan)因(yin)有很(hen)多種，最直接原(yuan)(yuan)(yuan)因(yin)是絕(jue)緣降(jiang)低而(er)被擊(ji)穿。導敏絕(jue)緣降(jiang)低的(de)(de)因(yin)素(su)很(hen)多，根(gen)據實際運行經驗，遼寧大元電(dian)纜(lan)(lan)小編歸納(na)起(qi)來(lai)以下幾(ji)(ji)種情況。電(dian)纜(lan)(lan)老(lao)化的(de)(de)幾(ji)(ji)點原(yuan)(yuan)(yuan)因(yin)1)電(dian)纜(lan)(lan)老(lao)化原(yuan)(yuan)(yuan)因(yin):外力損傷(shang)。由近幾(ji)(ji)年(nian)的(de)(de)運行分析(xi)來(lai)看，尤其(qi)是在經濟高速發展中的(de)(de)海...

1.防雷(lei)(lei)擊反事故措施(1)更換、安(an)裝支(zhi)柱式絕(jue)(jue)(jue)緣子或瓷橫擔。雷(lei)(lei)擊10kV架(jia)空線路(lu)針(zhen)式絕(jue)(jue)(jue)緣子事故，是最(zui)多(duo)見(jian)的設備事故，造成這類事故的原因除了本地區雷(lei)(lei)暴日多(duo)之外(wai)，針(zhen)式絕(jue)(jue)(jue)緣子質量不(bu)過關也(ye)是主要原因，前幾(ji)年我們采用和安(an)裝的P-15、P-20單裙、雙裙...

電線電纜已(yi)(yi)經成(cheng)為國民經濟發(fa)展(zhan)的(de)(de)(de)(de)支(zhi)柱(zhu)，在我(wo)們(men)的(de)(de)(de)(de)生活(huo)中(zhong)任何的(de)(de)(de)(de)領域都已(yi)(yi)經離不開(kai)線纜。隨著節能環(huan)保的(de)(de)(de)(de)不斷提倡，生產(chan)和制(zhi)造環(huan)保無公害的(de)(de)(de)(de)產(chan)品已(yi)(yi)經成(cheng)為全球性發(fa)展(zhan)的(de)(de)(de)(de)趨勢。如何推動電線電纜的(de)(de)(de)(de)發(fa)展(zhan)呢？1、產(chan)品研發(fa)：目前國際上環(huan)保的(de)(de)(de)(de)法(fa)規越來越多，對線纜企業的(de)(de)(de)(de)生產(chan)...

對(dui)于(yu)(yu)排(pai)擠(ji)輸(shu)電(dian)線(xian)路，除導線(xian)電(dian)阻的(de)有(you)功(gong)(gong)消(xiao)耗外，還(huan)有(you)電(dian)暈消(xiao)耗和(he)沿盡緣(yuan)(yuan)子(zi)漏電(dian)而至的(de)有(you)功(gong)(gong)消(xiao)耗；對(dui)于(yu)(yu)電(dian)纜線(xian)路，主(zhu)要(yao)是介質消(xiao)耗。一般在排(pai)擠(ji)線(xian)路中，由盡緣(yuan)(yuan)子(zi)泄露電(dian)流而發生的(de)有(you)功(gong)(gong)消(xiao)耗極小，可疏忽(hu)不記，所以對(dui)排(pai)擠(ji)線(xian)路主(zhu)要(yao)斟酌電(dian)暈消(xiao)耗。由于(yu)(yu)排(pai)擠(ji)線(xian)路的(de)盡緣(yuan)(yuan)介質是空...

擴(kuo)徑導(dao)(dao)線是以(yi)滿足(zu)技術條(tiao)件的(de)常(chang)規導(dao)(dao)線規格為基準，采取擴(kuo)大(da)導(dao)(dao)線外徑技術，在保(bao)證電(dian)(dian)暈(yun)所要求的(de)導(dao)(dao)線外徑前提下，減(jian)(jian)少(shao)導(dao)(dao)線的(de)鋁截(jie)面，從而減(jian)(jian)少(shao)導(dao)(dao)線的(de)總(zong)重(zhong)量(liang)，減(jian)(jian)少(shao)鐵塔荷載(zai)和(he)結構重(zhong)量(liang)，極大(da)地降低線路造(zao)價。當線路的(de)電(dian)(dian)壓超過(guo)220kv時(shi)，為了(le)降低線路電(dian)(dian)抗和(he)電(dian)(dian)暈(yun)損...

聚氯(lv)乙烯(xi)絕(jue)(jue)緣(yuan)和護套控(kong)(kong)制電(dian)纜(lan)適用于(yu)額(e)定電(dian)壓(ya)450/750V及以下控(kong)(kong)制、信號、保護及測量系統接線之用。執(zhi)行標準(zhun)：GB9330《塑料絕(jue)(jue)緣(yuan)控(kong)(kong)制電(dian)纜(lan)》、IEC60227《額(e)定電(dian)壓(ya)450/750V及以下聚氯(lv)乙烯(xi)絕(jue)(jue)緣(yuan)電(dian)纜(lan)》以及IEC60502《額(e)定電(dian)壓(ya)1...

電線電纜在我國(guo)的(de)(de)基礎建設當中起到(dao)了(le)很重(zhong)要的(de)(de)鏈接(jie)作用，隨著(zhu)我國(guo)的(de)(de)不(bu)斷發(fa)展，對于動力電纜行業來說，針對不(bu)斷變化的(de)(de)幣(bi)場(chang)和需求，傳統(tong)的(de)(de)行業模式已經不(bu)能適應幣(bi)場(chang)發(fa)展，所以(yi)對于很多(duo)企業來說，行業的(de)(de)轉變刻(ke)不(bu)容緩。我國(guo)電線電纜行業仍然是繼(ji)續發(fa)展的(de)(de)趨(qu)勢，但是...

控制電(dian)纜的額(e)定(ding)電(dian)壓(ya)應(ying)不(bu)低于該回路的工作電(dian)壓(ya),并應(ying)滿足(zu)可能經(jing)受(shou)的暫態(tai)和工頻(pin)過電(dian)壓(ya)的要求。[3] 為保(bao)(bao)證控制電(dian)纜在發生絕緣(yuan)擊穿、機械損(sun)傷(shang)或著火時，減少波及的范(fan)圍，國家標準GB50217-91《電(dian)力工程(cheng)電(dian)纜設(she)計規范(fan)》規定(ding)：雙重化保(bao)(bao)護的...

1、看標(biao)簽。正(zheng)規(gui)廠家(jia)生產(chan)(chan)的(de)(de)電(dian)(dian)(dian)纜合格證(zheng)(zheng)的(de)(de)內容應包括：3C認證(zheng)(zheng)標(biao)志、認證(zheng)(zheng)編號(hao)(hao)、型(xing)號(hao)(hao)規(gui)格、執行標(biao)準、額定電(dian)(dian)(dian)壓、電(dian)(dian)(dian)纜長度(du)、生產(chan)(chan)日期、生產(chan)(chan)者(zhe)、檢(jian)驗者(zhe)、廠名、廠址、固(gu)定電(dian)(dian)(dian)話、防偽標(biao)示等。而(er)假冒產(chan)(chan)品的(de)(de)標(biao)簽往(wang)往(wang)印刷不清(qing)或(huo)印制內容不全。2、看表面。正(zheng)規(gui)電(dian)(dian)(dian)纜的(de)(de)...

當線(xian)(xian)路的電(dian)壓超(chao)過220kv時，為(wei)了降(jiang)低(di)線(xian)(xian)路電(dian)抗和電(dian)暈(yun)損耗(hao)(hao)，通常采用(yong)擴(kuo)徑導(dao)(dao)線(xian)(xian)或分裂導(dao)(dao)線(xian)(xian)。分裂導(dao)(dao)線(xian)(xian)是將(jiang)每相導(dao)(dao)線(xian)(xian)分為(wei)若干(gan)根子導(dao)(dao)線(xian)(xian)，每根之間保持一定距(ju)離（一般為(wei)400mm）這樣可以使導(dao)(dao)線(xian)(xian)的等效半徑增(zeng)大，從(cong)而降(jiang)低(di)線(xian)(xian)路的電(dian)抗和電(dian)暈(yun)損耗(hao)(hao)。擴(kuo)徑導(dao)(dao)線(xian)(xian)就是把普...

  對于架空輸電線路(lu)，除了導線電阻(zu)的(de)(de)(de)有(you)(you)功損(sun)耗外，還有(you)(you)電暈損(sun)耗和沿絕(jue)緣子漏電所致(zhi)的(de)(de)(de)有(you)(you)功損(sun)耗；對于電纜線路(lu)，主要是介質損(sun)耗。  一般(ban)在(zai)架空線路(lu)中，由絕(jue)緣子泄露電流而產生的(de)(de)(de)有(you)(you)功損(sun)耗極(ji)小，可(ke)忽略不記，...

  擴(kuo)徑導(dao)(dao)線(xian)是以滿足技(ji)術(shu)條(tiao)件的常規導(dao)(dao)線(xian)規格為(wei)基準，采取擴(kuo)大(da)導(dao)(dao)線(xian)外徑技(ji)術(shu)，在保證電暈所要(yao)求(qiu)的導(dao)(dao)線(xian)外徑前提下，減少導(dao)(dao)線(xian)的鋁(lv)截面，從而減少導(dao)(dao)線(xian)的總(zong)重量(liang)，減少鐵塔(ta)荷(he)載(zai)和結(jie)構重量(liang)，極大(da)地降(jiang)低(di)線(xian)路造價。  ...

在750千伏輸電(dian)線(xian)路(lu)上應用擴徑導線(xian)，既可以(yi)減少工程(cheng)造價，又能降低(di)輸電(dian)線(xian)路(lu)對(dui)沿線(xian)環(huan)境的(de)影響，滿(man)足(zu)建(jian)設“資源節約型(xing)、環(huan)境友好型(xing)”社會的(de)要(yao)求。擴徑導線(xian)是以(yi)滿(man)足(zu)技(ji)術條件的(de)常規導線(xian)規格為基準，采(cai)取擴大導線(xian)外(wai)徑技(ji)術，在保(bao)證電(dian)暈(yun)所要(yao)求的(de)導線(xian)外(wai)徑前提下，減...

1、普(pu)(pu)通型(xing)耐熱鋁合金導線的技術特點：a.長期工作(zuo)溫度150℃，比(bi)普(pu)(pu)通鋁線長期工作(zuo)溫度70℃提(ti)高(gao)1.14倍。載流量(liang)比(bi)普(pu)(pu)通鋁線提(ti)高(gao)60%以上。b.抗(kang)拉(la)強度保(bao)持率≥90%。c.導電率≥58%IACS。d.150℃時蠕變(bian)比(bi)硬鋁90℃時蠕變(bian)小。2、高(gao)...

750千伏以上輸(shu)電線路(lu)運行(xing)容易產生(sheng)電暈，不(bu)但消(xiao)耗大量(liang)功率(lv)，而且其派(pai)生(sheng)出的(de)(de)(de)無線干(gan)擾和(he)可(ke)聽噪音嚴重影響生(sheng)態環境。國(guo)際(ji)上一般(ban)采用增加導線的(de)(de)(de)外(wai)(wai)徑和(he)光潔表面(mian)來解(jie)決。實際(ji)工(gong)作中(zhong)，輸(shu)電線路(lu)所(suo)需的(de)(de)(de)導線截(jie)面(mian)一般(ban)達不(bu)到(dao)限制電暈要求(qiu)的(de)(de)(de)外(wai)(wai)徑，只能(neng)采用加大導線的(de)(de)(de)...

  分裂導(dao)(dao)線(xian)(xian)(xian)(xian)是由三根或四根單芯導(dao)(dao)線(xian)(xian)(xian)(xian)經(jing)過(guo)某種(zhong)工藝(yi)制造在一(yi)起的(de)一(yi)種(zhong)可分裂的(de)導(dao)(dao)線(xian)(xian)(xian)(xian),或者稱導(dao)(dao)線(xian)(xian)(xian)(xian)束,這種(zhong)分裂導(dao)(dao)線(xian)(xian)(xian)(xian)不僅僅是形(xing)式(shi)上與常(chang)規導(dao)(dao)線(xian)(xian)(xian)(xian)不同,由于(yu)分裂導(dao)(dao)線(xian)(xian)(xian)(xian)可使導(dao)(dao)線(xian)(xian)(xian)(xian)周(zhou)圍磁場分布改變,從而等效地(di)增大了導(dao)(dao)線(xian)(xian)(xian)(xian)半徑,減小了導(dao)(dao)線(xian)(xian)(xian)(xian)電(dian)抗；同...

擴徑(jing)導(dao)(dao)線(xian)(xian)是以滿足技術條件的常規導(dao)(dao)線(xian)(xian)規格為基準，采取(qu)擴大(da)導(dao)(dao)線(xian)(xian)外徑(jing)技術，在保(bao)證電暈所要(yao)求的導(dao)(dao)線(xian)(xian)外徑(jing)前提下，減少導(dao)(dao)線(xian)(xian)的鋁(lv)截面，從(cong)而減少導(dao)(dao)線(xian)(xian)的總(zong)重(zhong)(zhong)量，減少鐵(tie)塔荷載和結構重(zhong)(zhong)量，極大(da)地降低(di)線(xian)(xian)路(lu)造價。當線(xian)(xian)路(lu)的電壓超過220kv時，為了降低(di)線(xian)(xian)路(lu)電抗和電暈損...

   擴徑導線(xian)(xian)(xian)(xian)是(shi)(shi)在普(pu)通(tong)的(de)鋼(gang)芯絞線(xian)(xian)(xian)(xian)基(ji)礎上開發的(de)一種新型特(te)殊(shu)導線(xian)(xian)(xian)(xian)，是(shi)(shi)目前為止外徑最大(da)的(de)架空導線(xian)(xian)(xian)(xian)。擴徑鋼(gang)芯鋁(lv)絞線(xian)(xian)(xian)(xian)也叫(jiao)擴徑空心(xin)母線(xian)(xian)(xian)(xian)，由多層(ceng)鋁(lv)線(xian)(xian)(xian)(xian)反向(xiang)絞合而成，中(zhong)間為圓形中(zhong)空結構。  &nbs...

擴(kuo)徑導線(xian)在(zai)超高壓(ya)(ya)和(he)特高壓(ya)(ya)輸電(dian)(dian)(dian)工(gong)程(cheng)中(zhong)(zhong)有(you)很大的應用空(kong)間，尤(you)其在(zai)高海拔(ba)地(di)區有(you)著更為廣(guang)闊的前景。擴(kuo)徑鋼(gang)芯(xin)鋁絞線(xian)LGKK適用于(yu)高低壓(ya)(ya)輸電(dian)(dian)(dian)線(xian)中(zhong)(zhong)電(dian)(dian)(dian)廠(chang)(chang)及變(bian)電(dian)(dian)(dian)站配(pei)電(dian)(dian)(dian)線(xian)路。擴(kuo)徑導線(xian)的產品(pin)用途：本(ben)產品(pin)適用于(yu)高低壓(ya)(ya)輸電(dian)(dian)(dian)線(xian)中(zhong)(zhong)電(dian)(dian)(dian)廠(chang)(chang)及變(bian)電(dian)(dian)(dian)站配(pei)電(dian)(dian)(dian)線(xian)路、母線(xian)等。減少電(dian)(dian)(dian)暈損(sun)失...

擴(kuo)徑(jing)(jing)導線(xian)(xian)(xian)也(ye)就(jiu)是(shi)擴(kuo)大導線(xian)(xian)(xian)外徑(jing)(jing)技術，當線(xian)(xian)(xian)路的電(dian)壓(ya)超過(guo)220kv時(shi)，為了降(jiang)低線(xian)(xian)(xian)路電(dian)抗和(he)電(dian)暈(yun)損耗(hao)，通(tong)常采用擴(kuo)徑(jing)(jing)導線(xian)(xian)(xian)。擴(kuo)徑(jing)(jing)導線(xian)(xian)(xian)就(jiu)是(shi)把普通(tong)的導線(xian)(xian)(xian)做(zuo)成(cheng)中空(kong)（里(li)面用多股(gu)芯線(xian)(xian)(xian)和(he)支撐層做(zuo)成(cheng)）或(huo)者減少其(qi)中部分(fen)層單線(xian)(xian)(xian)數量（使該(gai)層單線(xian)(xian)(xian)間存在(zai)一定數量空(kong)隙），最終(zhong)達到增...

擴徑(jing)導(dao)線(xian)是以滿足技術條件的(de)(de)常規(gui)導(dao)線(xian)規(gui)格為基準，采(cai)取(qu)擴大(da)(da)導(dao)線(xian)外(wai)徑(jing)技術，在(zai)保(bao)證電暈(yun)所要(yao)求的(de)(de)導(dao)線(xian)外(wai)徑(jing)前提下(xia)，減(jian)(jian)少導(dao)線(xian)的(de)(de)鋁(lv)截面(mian)，從而減(jian)(jian)少導(dao)線(xian)的(de)(de)總重量，減(jian)(jian)少鐵塔荷載和結構重量，極大(da)(da)地降(jiang)低(di)線(xian)路造價。擴徑(jing)導(dao)線(xian)的(de)(de)產品用途(tu)：本產品適用于高低(di)壓輸電線(xian)中電廠(chang)及變...

擴徑導(dao)線(xian)(xian)是以滿足技術條件的(de)(de)(de)(de)常(chang)規導(dao)線(xian)(xian)規格為基(ji)準，采(cai)取擴大導(dao)線(xian)(xian)外(wai)徑技術，在保(bao)證(zheng)電(dian)暈所要求的(de)(de)(de)(de)導(dao)線(xian)(xian)外(wai)徑前提下，減少導(dao)線(xian)(xian)的(de)(de)(de)(de)鋁截面，從(cong)而(er)減少導(dao)線(xian)(xian)的(de)(de)(de)(de)總重(zhong)量，減少鐵塔荷載和結構重(zhong)量，極大地(di)降低(di)線(xian)(xian)路造價。當線(xian)(xian)路的(de)(de)(de)(de)電(dian)壓超過220kv時，為了降低(di)線(xian)(xian)路電(dian)抗和電(dian)暈損...

擴徑(jing)(jing)導(dao)線(xian)(xian)是(shi)以滿足技(ji)術(shu)條(tiao)件(jian)的(de)常規(gui)導(dao)線(xian)(xian)規(gui)格為基準，采取擴大導(dao)線(xian)(xian)外徑(jing)(jing)技(ji)術(shu)，在(zai)保證電(dian)暈(yun)所要求的(de)導(dao)線(xian)(xian)外徑(jing)(jing)前提(ti)下，減少(shao)導(dao)線(xian)(xian)的(de)鋁(lv)截(jie)面，從而減少(shao)導(dao)線(xian)(xian)的(de)總重(zhong)量，減少(shao)鐵塔荷(he)載(zai)和(he)結構重(zhong)量，極大地(di)降低線(xian)(xian)路(lu)造價。當(dang)線(xian)(xian)路(lu)的(de)電(dian)壓超過220kv時，為了(le)降低線(xian)(xian)路(lu)電(dian)抗和(he)電(dian)暈(yun)損...

隨著我國超(chao)高(gao)壓輸電線路技術(shu)的(de)不(bu)斷(duan)發展和提高(gao)，許(xu)多(duo)的(de)新材(cai)料、新工藝不(bu)斷(duan)地應(ying)用(yong)于(yu)輸電線路中，鋁合金材(cai)料因具備(bei)優良(liang)的(de)導電性(xing)能、相對較低的(de)價格、寬廣(guang)的(de)使(shi)用(yong)溫度等綜合性(xing)能而廣(guang)泛地用(yong)來(lai)制作高(gao)電壓等級輸變電工程(cheng)中的(de)擴徑導線，其能夠傳輸大容量的(de)電流，然(ran)而目...

擴徑導線(xian)(xian)是以滿(man)足(zu)技術條(tiao)件的(de)常規導線(xian)(xian)規格為基準，采取擴大(da)導線(xian)(xian)外(wai)徑技術，在保證電(dian)暈所要求的(de)導線(xian)(xian)外(wai)徑前提下，減(jian)少(shao)導線(xian)(xian)的(de)鋁截(jie)面，從而減(jian)少(shao)導線(xian)(xian)的(de)總重(zhong)量(liang)，減(jian)少(shao)鐵塔荷載和結構重(zhong)量(liang)，極(ji)大(da)地(di)降(jiang)低線(xian)(xian)路造(zao)價。當線(xian)(xian)路的(de)電(dian)壓超過(guo)220kv時，為了降(jiang)低線(xian)(xian)路電(dian)抗和電(dian)暈損...

擴徑導(dao)(dao)線(xian)是以滿足技術(shu)條(tiao)件的常規導(dao)(dao)線(xian)規格(ge)為(wei)基(ji)準，采(cai)取擴大導(dao)(dao)線(xian)外徑技術(shu)，在(zai)保證電暈所要求(qiu)的導(dao)(dao)線(xian)外徑前提下(xia)，減(jian)少(shao)導(dao)(dao)線(xian)的鋁截面，從而減(jian)少(shao)導(dao)(dao)線(xian)的總重(zhong)量，減(jian)少(shao)鐵塔(ta)荷(he)載和結構重(zhong)量，極大地降低(di)線(xian)路造價(jia)。當線(xian)路的電壓(ya)超過220kv時，為(wei)了降低(di)線(xian)路電抗和電暈損...

擴徑導(dao)線(xian)是以(yi)滿足技術條件的(de)常規(gui)導(dao)線(xian)規(gui)格為基準，采取擴大導(dao)線(xian)外徑技術，在(zai)保(bao)證電(dian)暈(yun)所要求(qiu)的(de)導(dao)線(xian)外徑前提下，減少(shao)導(dao)線(xian)的(de)鋁(lv)截(jie)面(mian)，從而減少(shao)導(dao)線(xian)的(de)總重量(liang)(liang)，減少(shao)鐵塔(ta)荷(he)載(zai)和結構(gou)重量(liang)(liang)，極(ji)大地降低(di)(di)線(xian)路(lu)造價。當線(xian)路(lu)的(de)電(dian)壓超(chao)過220kv時，為了(le)降低(di)(di)線(xian)路(lu)電(dian)抗和電(dian)暈(yun)損...

擴(kuo)徑(jing)(jing)導線(xian)(xian)(xian)就是把普通的導線(xian)(xian)(xian)做成(cheng)中空（里面(mian)用(yong)多股芯線(xian)(xian)(xian)和(he)(he)支(zhi)撐(cheng)層(ceng)做成(cheng)）或者減少其中部分層(ceng)單(dan)線(xian)(xian)(xian)數(shu)(shu)量（使該(gai)層(ceng)單(dan)線(xian)(xian)(xian)間存在一定(ding)數(shu)(shu)量空隙），最終達到增加導線(xian)(xian)(xian)的等(deng)效半徑(jing)(jing)的目的。當線(xian)(xian)(xian)路的電(dian)壓超過220kv時，為了降低線(xian)(xian)(xian)路電(dian)抗和(he)(he)電(dian)暈損耗，通常采(cai)用(yong)擴(kuo)徑(jing)(jing)導線(xian)(xian)(xian)。擴(kuo)徑(jing)(jing)導線(xian)(xian)(xian)...

擴(kuo)徑(jing)導(dao)(dao)線(xian)是以滿(man)足技(ji)(ji)術條件的(de)常規導(dao)(dao)線(xian)規格為基準(zhun)，采取擴(kuo)大導(dao)(dao)線(xian)外徑(jing)技(ji)(ji)術，在保證電(dian)暈所要(yao)求的(de)導(dao)(dao)線(xian)外徑(jing)前提下，減(jian)(jian)少(shao)導(dao)(dao)線(xian)的(de)鋁截面(mian)，從而減(jian)(jian)少(shao)導(dao)(dao)線(xian)的(de)總(zong)重量，減(jian)(jian)少(shao)鐵塔荷(he)載和結(jie)構重量，極(ji)大地降低(di)線(xian)路造價。當(dang)線(xian)路的(de)電(dian)壓超過220kv時，為了(le)降低(di)線(xian)路電(dian)抗和電(dian)暈損...

對于排擠輸(shu)電(dian)(dian)線(xian)(xian)(xian)路，除(chu)導(dao)線(xian)(xian)(xian)電(dian)(dian)阻的(de)(de)有功消(xiao)耗(hao)外，還有電(dian)(dian)暈消(xiao)耗(hao)和沿盡(jin)(jin)緣子(zi)漏電(dian)(dian)而(er)至的(de)(de)有功消(xiao)耗(hao)；對于電(dian)(dian)纜(lan)線(xian)(xian)(xian)路，主(zhu)要是介(jie)質消(xiao)耗(hao)，一(yi)般在排擠線(xian)(xian)(xian)路中，由盡(jin)(jin)緣子(zi)泄(xie)露(lu)電(dian)(dian)流而(er)發(fa)生的(de)(de)有功消(xiao)耗(hao)極小，可疏忽不記，所以對排擠線(xian)(xian)(xian)路主(zhu)要斟酌電(dian)(dian)暈消(xiao)耗(hao)。由于架(jia)空線(xian)(xian)(xian)路的(de)(de)絕緣介(jie)質是空...

擴徑(jing)導線(xian)是以(yi)滿(man)足技術條件的(de)常規(gui)導線(xian)規(gui)格為(wei)基(ji)準，采(cai)取擴大(da)導線(xian)外徑(jing)技術，在保證電(dian)暈所要(yao)求(qiu)的(de)導線(xian)外徑(jing)前提(ti)下，減(jian)少(shao)導線(xian)的(de)鋁截(jie)面，從(cong)而(er)減(jian)少(shao)導線(xian)的(de)總重量(liang)，減(jian)少(shao)鐵塔荷載和結構重量(liang)，極大(da)地降低線(xian)路造(zao)價(jia)。 當(dang)線(xian)路的(de)電(dian)壓超過(guo)220kv時(shi)，為(wei)了降低線(xian)路...

擴徑導(dao)線(xian)(xian)是以滿足技術條件的(de)常規導(dao)線(xian)(xian)規格為基(ji)準(zhun)，采取擴大導(dao)線(xian)(xian)外徑技術，在保證電暈所(suo)要求的(de)導(dao)線(xian)(xian)外徑前提下(xia)，減(jian)(jian)少導(dao)線(xian)(xian)的(de)鋁(lv)截面，從而減(jian)(jian)少導(dao)線(xian)(xian)的(de)總重量(liang)，減(jian)(jian)少鐵(tie)塔荷載和(he)結(jie)構(gou)重量(liang)，極大地降低(di)線(xian)(xian)路造價。 當線(xian)(xian)路的(de)電壓超過220kv時，為了降低(di)線(xian)(xian)路...

備受行業關注的(de)鋁合金導線(xian)首次被納入國家(jia)電(dian)網(wang)(wang)公司新技(ji)(ji)術推廣(guang)目(mu)(mu)錄，成為(wei)未來幾年新技(ji)(ji)術推廣(guang)的(de)重點。根據(ju)《目(mu)(mu)錄》規劃，2014~2016年，要在110（66）千(qian)(qian)伏及以上電(dian)壓等級線(xian)路中應用節(jie)能導線(xian)20000千(qian)(qian)米。在國家(jia)電(dian)網(wang)(wang)公司發布的(de)《國家(jia)電(dian)網(wang)(wang)公司新技(ji)(ji)...

空心擴(kuo)徑導線產(chan)品(pin)規(gui)格齊全，能(neng)(neng)滿足我(wo)國變電站(zhan)，換流站(zhan)用各種(zhong)規(gui)格特種(zhong)道縣(xian)（軟母線）的(de)全部需求。一(yi)、空心擴(kuo)徑導線特點(dian)/用途：具有(you)優(you)良(liang)的(de)耐(nai)腐蝕(shi)性能(neng)(neng)，抗(kang)油、強(qiang)酸、抗(kang)強(qiang)堿、強(qiang)氧化劑等；具有(you)優(you)良(liang)的(de)電絕緣(yuan)性能(neng)(neng)、耐(nai)高電壓(ya)、高頻損耗小(xiao)、不吸潮、絕緣(yuan)電阻大；具有(you)...

擴徑(jing)導線(xian)(xian)(xian)是以滿足技(ji)術條件的(de)常規導線(xian)(xian)(xian)規格為基準，采取(qu)擴大導線(xian)(xian)(xian)外(wai)(wai)徑(jing)技(ji)術，在保證電(dian)暈(yun)所要求的(de)導線(xian)(xian)(xian)外(wai)(wai)徑(jing)前提下，減少導線(xian)(xian)(xian)的(de)鋁截面，從而(er)減少導線(xian)(xian)(xian)的(de)總重量，減少鐵塔荷載和(he)結構重量，極大地降低線(xian)(xian)(xian)路(lu)造價。交(jiao)流輸電(dian)線(xian)(xian)(xian)路(lu)的(de)電(dian)暈(yun)損失(shi)主要與導線(xian)(xian)(xian)表(biao)面場強和(he)天氣有(you)關，...

  交流輸電線(xian)路的(de)電暈損失(shi)主要(yao)與(yu)導(dao)線(xian)表面場(chang)(chang)強和(he)天氣有(you)關，根據絕緣(yuan)水(shui)平要(yao)求確定了(le)相間距離后，導(dao)線(xian)表面場(chang)(chang)強主要(yao)與(yu)導(dao)線(xian)分裂(lie)(lie)數、分裂(lie)(lie)間距和(he)子導(dao)線(xian)直徑(jing)有(you)關，分裂(lie)(lie)數越多，子導(dao)線(xian)直徑(jing)越大，表面場(chang)(chang)強越小(xiao)。擴徑(jing)導(dao)線(xian)通過支撐鋁線(xian)...

  對于(yu)架(jia)空輸電(dian)線路，除了導線電(dian)阻(zu)的有(you)(you)功(gong)損(sun)耗(hao)外，還有(you)(you)電(dian)暈損(sun)耗(hao)和沿絕緣子漏電(dian)所致的有(you)(you)功(gong)損(sun)耗(hao)；對于(yu)電(dian)纜線路，主要是(shi)介質損(sun)耗(hao)。   一般在架(jia)空線路中，由絕緣子泄露電(dian)流而產(chan)生的有(you)(you)功(gong)損(sun)耗(hao)極小，可...

  交流輸電線(xian)路的(de)電暈損失主(zhu)要(yao)與(yu)導線(xian)表(biao)面(mian)場強(qiang)和天氣有關，根(gen)據絕緣水(shui)平要(yao)求確(que)定(ding)了相間距(ju)離后，導線(xian)表(biao)面(mian)場強(qiang)主(zhu)要(yao)與(yu)導線(xian)分裂數、分裂間距(ju)和子導線(xian)直徑(jing)(jing)(jing)有關，分裂數越(yue)多，子導線(xian)直徑(jing)(jing)(jing)越(yue)大，表(biao)面(mian)場強(qiang)越(yue)小。擴(kuo)徑(jing)(jing)(jing)導線(xian)通過支撐(cheng)鋁線(xian)疏繞的(de)...

  電暈噪聲(sheng)是(shi)指伴隨著(zhu)導線周圍(wei)的(de)電暈或火花放(fang)電所產生的(de)一(yi)種噪聲(sheng)，屬(shu)(shu)于(yu)聲(sheng)頻(pin)干擾。電暈噪聲(sheng)頻(pin)率范(fan)圍(wei)一(yi)般為60～4000Hz，峰值頻(pin)率是(shi)工頻(pin)的(de)2倍左右。輸電線路可聽噪聲(sheng)屬(shu)(shu)于(yu)低(di)頻(pin)范(fan)圍(wei)，具有(you)較強的(de)穿透力，衰減較慢，能(neng)傳播(bo)到較遠...

  我(wo)國西部(bu)的(de)輸電(dian)線(xian)路的(de)輸電(dian)容量一般不(bu)大，但是所處海(hai)拔(ba)較(jiao)高(gao)，如我(wo)國第1條(tiao)750kV輸電(dian)線(xian)路經過(guo)地(di)區(qu)海(hai)拔(ba)高(gao)度基本在2000m以上。在其他條(tiao)件相同(tong)的(de)情況下，海(hai)拔(ba)越(yue)高(gao)輸電(dian)線(xian)路導(dao)線(xian)越(yue)容易起暈。在電(dian)壓(ya)、分(fen)裂(lie)數(shu)、子導(dao)線(xian)間距(ju)、海(hai)拔(ba)...

  擴(kuo)(kuo)徑導(dao)(dao)線(xian)(xian)(xian)一般大(da)多用在特(te)高(gao)壓線(xian)(xian)(xian)路、高(gao)海拔地(di)區、人口密(mi)集(ji)的地(di)區。按(an)用途(tu)分為線(xian)(xian)(xian)路用和變(bian)電站用兩(liang)大(da)類；按(an)結(jie)構特(te)點分為大(da)內徑鋁管(guan)支撐(cheng)型(xing)擴(kuo)(kuo)徑導(dao)(dao)線(xian)(xian)(xian)、小內徑鋁管(guan)填充型(xing)擴(kuo)(kuo)徑導(dao)(dao)線(xian)(xian)(xian)、疏(shu)絞型(xing)擴(kuo)(kuo)徑導(dao)(dao)線(xian)(xian)(xian)、高(gao)密(mi)度(du)聚乙烯支撐(cheng)型(xing)擴(kuo)(kuo)徑導(dao)(dao)線(xian)(xian)(xian)。&nbs...

  遼寧大(da)元電(dian)纜制造有限公司(si)向市(shi)場供應(ying)的(de)(de)擴徑(jing)導線(xian)，符合規格誤差極小，遠銷遼寧、吉(ji)林(lin)、黑龍江(jiang)、河北(bei)、山西、內蒙古(gu)自治區等省市(shi)。產(chan)品廣泛的(de)(de)用(yong)于城鄉電(dian)網改造上，并創出了名牌，得(de)到用(yong)戶的(de)(de)一致(zhi)好評(ping)。現我擴徑(jing)導線(xian)生產(chan)廠(chang)家向大(da)家做...

電暈噪(zao)聲是指伴隨著(zhu)導(dao)線周圍的(de)電暈或火(huo)花放(fang)電所產生(sheng)的(de)一(yi)(yi)種噪(zao)聲，屬于(yu)聲頻干擾。電暈噪(zao)聲頻率范圍一(yi)(yi)般(ban)為60～4000Hz，峰值頻率是工頻的(de)2倍左右。輸(shu)電線路可(ke)(ke)聽噪(zao)聲屬于(yu)低頻范圍，具(ju)有(you)較強的(de)穿透(tou)力，衰減較慢，能傳播到較遠的(de)地方(fang)，一(yi)(yi)般(ban)可(ke)(ke)達(da)1km。我國...

我(wo)國(guo)(guo)西部的輸電線路(lu)的輸電容量一般不大，但是所處海(hai)拔(ba)較高，如我(wo)國(guo)(guo)第(di)1條(tiao)750kV輸電線路(lu)經過地(di)區(qu)海(hai)拔(ba)高度基本在2000m以上(shang)。在其他條(tiao)件相同(tong)的情況(kuang)下(xia)，海(hai)拔(ba)越(yue)高輸電線路(lu)導線越(yue)容易(yi)起暈。在電壓、分裂數、子導線間距、海(hai)拔(ba)等相同(tong)的情況(kuang)下(xia)，導線外徑越(yue)大...

擴徑(jing)導(dao)線(xian)一般大多用(yong)在特(te)高壓線(xian)路、高海拔地區、人口密(mi)集的地區。按(an)用(yong)途分為線(xian)路用(yong)和變電(dian)站用(yong)兩(liang)大類；按(an)結構特(te)點(dian)分為大內徑(jing)鋁管支撐型(xing)擴徑(jing)導(dao)線(xian)、小內徑(jing)鋁管填(tian)充(chong)型(xing)擴徑(jing)導(dao)線(xian)、疏絞型(xing)擴徑(jing)導(dao)線(xian)、高密(mi)度(du)聚(ju)乙烯(xi)支撐型(xing)擴徑(jing)導(dao)線(xian)。特(te)高壓線(xian)路：特(te)高壓輸電(dian)處(chu)于超大規模電(dian)...

產品擴(kuo)徑導(dao)線(xian)(xian)(xian)是以滿足技(ji)術條件(jian)的(de)(de)常規導(dao)線(xian)(xian)(xian)規格為基準，其采取(qu)擴(kuo)大導(dao)線(xian)(xian)(xian)外徑技(ji)術，保證電暈所要求的(de)(de)導(dao)線(xian)(xian)(xian)外徑前提(ti)下，減少(shao)(shao)導(dao)線(xian)(xian)(xian)的(de)(de)鋁截面，進而減少(shao)(shao)導(dao)線(xian)(xian)(xian)的(de)(de)總重量(liang)，減少(shao)(shao)鐵塔(ta)荷載和結構重量(liang)，極(ji)大地降低線(xian)(xian)(xian)路造價(jia)。  當線(xian)(xian)(xian)路電壓(ya)超過220k...