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

  對(dui)于(yu)架空(kong)輸電(dian)線(xian)路(lu)，除了導線(xian)電(dian)阻的(de)有(you)功(gong)(gong)損(sun)(sun)耗(hao)外(wai)，還有(you)電(dian)暈損(sun)(sun)耗(hao)和沿絕緣子(zi)漏電(dian)所致的(de)有(you)功(gong)(gong)損(sun)(sun)耗(hao)；對(dui)于(yu)電(dian)纜線(xian)路(lu)，主要是介質(zhi)損(sun)(sun)耗(hao)。  一般在(zai)架空(kong)線(xian)路(lu)中，由絕緣子(zi)泄露電(dian)流而產生(sheng)的(de)有(you)功(gong)(gong)損(sun)(sun)耗(hao)極(ji)小(xiao)，可忽略(lve)不記，...

1.特高(gao)(gao)壓線路特高(gao)(gao)壓輸(shu)電處于超大規模(mo)電力輸(shu)運系統工程中的高(gao)(gao)端，特高(gao)(gao)壓工程以建設(she)“環境(jing)友好型(xing)”工程為(wei)目標(biao)，力求全面優(you)化工程的設(she)計方(fang)案，嚴格(ge)保(bao)證電場、磁場、可聽噪聲與無線電干擾水(shui)平滿足標(biao)準(zhun)要(yao)求。采用適當的擴徑導線有利于降...

交流輸電線(xian)路(lu)的(de)(de)電暈損(sun)失主要與(yu)導(dao)(dao)(dao)線(xian)表(biao)面場(chang)強(qiang)和天氣有關(guan)，根據絕緣(yuan)水平要求確定了(le)(le)相間距離后(hou)，導(dao)(dao)(dao)線(xian)表(biao)面場(chang)強(qiang)主要與(yu)導(dao)(dao)(dao)線(xian)分裂(lie)數(shu)、分裂(lie)間距和子(zi)導(dao)(dao)(dao)線(xian)直徑(jing)有關(guan)，分裂(lie)數(shu)越多，子(zi)導(dao)(dao)(dao)線(xian)直徑(jing)越大，表(biao)面場(chang)強(qiang)越小。擴徑(jing)導(dao)(dao)(dao)線(xian)通過支撐鋁線(xian)疏繞(rao)的(de)(de)方式(shi)擴大了(le)(le)導(dao)(dao)(dao)線(xian)外徑(jing)，...

擴徑(jing)導(dao)線(xian)是以滿(man)足(zu)技術條件的常規(gui)導(dao)線(xian)規(gui)格為基準，采(cai)取擴大(da)導(dao)線(xian)外徑(jing)技術，在保證電暈所要求的導(dao)線(xian)外徑(jing)前提下，減(jian)少導(dao)線(xian)的鋁截面(mian)，從而減(jian)少導(dao)線(xian)的總重量，減(jian)少鐵塔荷載和結構重量，極大(da)地(di)降(jiang)低線(xian)路造價。 產品適用于高低壓輸(shu)電線(xian)中電廠及變電站配電線(xian)...

  擴(kuo)(kuo)徑導線(xian)(xian)(xian)是(shi)以滿足技(ji)術條件的(de)(de)常規導線(xian)(xian)(xian)規格為基準，采(cai)取擴(kuo)(kuo)大(da)導線(xian)(xian)(xian)外徑技(ji)術，在保證電暈所要求的(de)(de)導線(xian)(xian)(xian)外徑前提下，減少導線(xian)(xian)(xian)的(de)(de)鋁截面，從(cong)而減少導線(xian)(xian)(xian)的(de)(de)總重量(liang)，減少鐵塔荷載和結構重量(liang)，極大(da)地(di)降低線(xian)(xian)(xian)路造(zao)價。擴(kuo)(kuo)徑導線(xian)(xian)(xian)在超高壓和特高壓輸...

   產(chan)品擴徑導(dao)線(xian)是(shi)以滿足技術(shu)條件的常規(gui)導(dao)線(xian)規(gui)格(ge)為基準(zhun)，其采取擴大導(dao)線(xian)外徑技術(shu)，保證電暈(yun)所(suo)要求的導(dao)線(xian)外徑前提下，減(jian)少導(dao)線(xian)的鋁截(jie)面(mian)，進(jin)而減(jian)少導(dao)線(xian)的總重量，減(jian)少鐵塔荷載和結構重量，極大地降(jiang)低(di)線(xian)路(lu)造價。&nbs...

      產品擴徑導(dao)線是以滿(man)足技術(shu)條件的(de)(de)(de)常規(gui)導(dao)線規(gui)格(ge)為基準，其(qi)采取擴大導(dao)線外徑技術(shu)，保(bao)證電暈所要求(qiu)的(de)(de)(de)導(dao)線外徑前提(ti)下(xia)，減(jian)少(shao)導(dao)線的(de)(de)(de)鋁(lv)截面，進而減(jian)少(shao)導(dao)線的(de)(de)(de)總重量(liang)，減(jian)少(shao)鐵塔荷(he)載和(he)...

   擴(kuo)徑(jing)導線(xian)是指與(yu)截面基本相同(tong)的圓線(xian)同(tong)心(xin)絞(jiao)架空導線(xian)相比，外徑(jing)擴(kuo)大了的導線(xian)。擴(kuo)徑(jing)導線(xian)類型很多，結構(gou)差異(yi)較(jiao)大，但(dan)根據(ju)用途可分(fen)為變電站用和輸電線(xian)路用兩類。擴(kuo)徑(jing)導線(xian)具有以(yi)下特點：  &n...

1.特高(gao)(gao)壓線路特高(gao)(gao)壓輸(shu)電(dian)(dian)處于超大規(gui)模電(dian)(dian)力輸(shu)運系統工(gong)程(cheng)(cheng)中的(de)高(gao)(gao)端(duan)，特高(gao)(gao)壓工(gong)程(cheng)(cheng)以建設“環(huan)境友好型(xing)”工(gong)程(cheng)(cheng)為目(mu)標(biao)，力求全面優化工(gong)程(cheng)(cheng)的(de)設計方(fang)案，嚴格保證電(dian)(dian)場(chang)、磁場(chang)、可(ke)聽噪(zao)聲與無線電(dian)(dian)干擾水(shui)平滿(man)足標(biao)準要求。采(cai)用適當(dang)的(de)擴徑導線有利(li)于降(jiang)低特高(gao)(gao)壓工(gong)程(cheng)(cheng)投資，而(er)且可(ke)...

  擴(kuo)徑導線(xian)(xian)(xian)(xian)是(shi)以滿足技術條件的(de)常(chang)規導線(xian)(xian)(xian)(xian)規格為(wei)基(ji)準，采取擴(kuo)大導線(xian)(xian)(xian)(xian)外(wai)徑技術，在保證電暈所要(yao)求(qiu)的(de)導線(xian)(xian)(xian)(xian)外(wai)徑前提下，減少導線(xian)(xian)(xian)(xian)的(de)鋁截面，從(cong)而減少導線(xian)(xian)(xian)(xian)的(de)總(zong)重(zhong)量，減少鐵(tie)塔荷載和(he)結構重(zhong)量，極(ji)大地降低線(xian)(xian)(xian)(xian)路造(zao)價。  ...

  超高(gao)壓(ya)輸電(dian)(dian)線(xian)路為抑(yi)制電(dian)(dian)暈(yun)放電(dian)(dian)和減少線(xian)路電(dian)(dian)抗所采取的(de)一種導(dao)線(xian)架(jia)設方式。即(ji)每(mei)相導(dao)線(xian)由幾根(gen)直徑較小的(de)分(fen)(fen)導(dao)線(xian)組成，各分(fen)(fen)導(dao)線(xian)間隔一定距離并(bing)按對稱(cheng)多(duo)角(jiao)形排列。超高(gao)壓(ya)輸電(dian)(dian)線(xian)路的(de)分(fen)(fen)裂導(dao)線(xian)數一般取3～4根(gen)。 分(fen)(fen)裂導(dao)線(xian)...

  對于(yu)(yu)架(jia)空(kong)輸電(dian)線路(lu)，除了導線電(dian)阻的有(you)功損(sun)耗外，還(huan)有(you)電(dian)暈損(sun)耗和沿(yan)絕緣子(zi)漏電(dian)所(suo)致的有(you)功損(sun)耗；對于(yu)(yu)電(dian)纜線路(lu)，主(zhu)要是(shi)介質損(sun)耗。   一般在(zai)架(jia)空(kong)線路(lu)中，由絕緣子(zi)泄露電(dian)流而產生的有(you)功損(sun)耗極小(xiao)，可...

按用(yong)途(tu)(tu)分類(lei)：擴(kuo)徑(jing)(jing)(jing)(jing)導(dao)(dao)線(xian)(xian)(xian)(xian)按用(yong)途(tu)(tu)分為(wei)(wei)兩(liang)大類(lei)，一(yi)類(lei)擴(kuo)徑(jing)(jing)(jing)(jing)導(dao)(dao)線(xian)(xian)(xian)(xian)應(ying)用(yong)于(yu)變電(dian)站(zhan)，另一(yi)類(lei)擴(kuo)徑(jing)(jing)(jing)(jing)導(dao)(dao)線(xian)(xian)(xian)(xian)應(ying)用(yong)于(yu)輸電(dian)線(xian)(xian)(xian)(xian)路。輸電(dian)線(xian)(xian)(xian)(xian)路用(yong)擴(kuo)徑(jing)(jing)(jing)(jing)導(dao)(dao)線(xian)(xian)(xian)(xian)為(wei)(wei)了減小弧垂(chui)，降低塔(ta)高，擴(kuo)徑(jing)(jing)(jing)(jing)導(dao)(dao)線(xian)(xian)(xian)(xian)的拉(la)重比(bi)應(ying)與鋼芯鋁(lv)絞線(xian)(xian)(xian)(xian)相當，所(suo)以此種(zhong)擴(kuo)徑(jing)(jing)(jing)(jing)導(dao)(dao)線(xian)(xian)(xian)(xian)必(bi)須有鋼芯。因為(wei)(wei)輸電(dian)線(xian)(xian)(xian)(xian)路用(yong)擴(kuo)徑(jing)(jing)(jing)(jing)導(dao)(dao)線(xian)(xian)(xian)(xian)必(bi)須采用(yong)張力架線(xian)(xian)(xian)(xian)，...

擴徑鋼芯鋁絞線(xian)(xian)特(te)點(dian):大大減小(xiao)導線(xian)(xian)表(biao)面的(de)(de)電場(chang)強(qiang)(qiang)度，從而避免(mian)電暈放電，減小(xiao)對無線(xian)(xian)電的(de)(de)干(gan)擾。結構重量輕，可降低線(xian)(xian)路造價，而且大大減小(xiao)了安(an)裝敷設(she)后的(de)(de)塑蠕伸(shen)長，減小(xiao)導線(xian)(xian)的(de)(de)永(yong)久變形。還具有高強(qiang)(qiang)度、耐腐蝕、使用壽命(ming)長、能(neng)改善接頭的(de)(de)連(lian)接質量等(deng)特(te)點(dian)。遼寧大元...

塑(su)(su)料(liao)絕緣(yuan)電(dian)(dian)力電(dian)(dian)纜在塑(su)(su)料(liao)絕緣(yuan)擠(ji)制過程中不免會產生碰(peng)傷(shang)(shang)、刮傷(shang)(shang)、壓傷(shang)(shang)、擊(ji)穿等(deng)缺陷點(dian)(dian)，為了(le)保(bao)證(zheng)定長生產、減(jian)少廢品，同時確保(bao)成品電(dian)(dian)纜電(dian)(dian)氣性能滿足標準要求(qiu)，需要尋找合適(shi)的絕緣(yuan)破損修補(bu)方法(fa)。1、熱(re)縮(suo)管(guan)修補(bu)法(fa)熱(re)縮(suo)管(guan)修補(bu)法(fa)是把(ba)尺寸合適(shi)的熱(re)縮(suo)管(guan)套于(yu)缺陷點(dian)(dian)，加熱(re)...

當線(xian)(xian)(xian)路的(de)(de)(de)電(dian)壓超(chao)過220kv時，為(wei)了降(jiang)低線(xian)(xian)(xian)路電(dian)抗和(he)電(dian)暈(yun)損(sun)耗，通常采用(yong)擴徑導(dao)線(xian)(xian)(xian)。擴徑導(dao)線(xian)(xian)(xian)就是把(ba)普通的(de)(de)(de)導(dao)線(xian)(xian)(xian)做成(cheng)中(zhong)空（里面用(yong)多股芯線(xian)(xian)(xian)和(he)支(zhi)撐層做成(cheng)）或(huo)者減少其中(zhong)部分層單線(xian)(xian)(xian)數量（使該(gai)層單線(xian)(xian)(xian)間存在一定數量空隙），最終(zhong)達到(dao)增加(jia)導(dao)線(xian)(xian)(xian)的(de)(de)(de)等效半徑的(de)(de)(de)目(mu)的(de)(de)(de)。擴徑導(dao)線(xian)(xian)(xian)...

空心擴徑導(dao)線(xian)(xian)的(de)(de)用途：1、電(dian)(dian)(dian)(dian)(dian)(dian)子行(xing)業中，可用于(yu)(yu)溫度補償導(dao)線(xian)(xian)，耐低溫導(dao)線(xian)(xian)，高(gao)溫加熱導(dao)線(xian)(xian)，耐老(lao)化電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)及阻(zu)燃電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)。2、家(jia)用電(dian)(dian)(dian)(dian)(dian)(dian)器行(xing)業中，可用于(yu)(yu)空調(diao)機，微波爐，電(dian)(dian)(dian)(dian)(dian)(dian)子消毒柜(ju)，電(dian)(dian)(dian)(dian)(dian)(dian)飯堡，電(dian)(dian)(dian)(dian)(dian)(dian)子熱水瓶(ping)，電(dian)(dian)(dian)(dian)(dian)(dian)暖器，電(dian)(dian)(dian)(dian)(dian)(dian)烤箱，電(dian)(dian)(dian)(dian)(dian)(dian)炒鍋，燈具(ju)燈飾等的(de)(de)內部布線(xian)(xian)。空心擴徑導(dao)線(xian)(xian)的(de)(de)特...

擴(kuo)(kuo)徑(jing)導線(xian)在超高壓(ya)和特(te)高壓(ya)輸電(dian)(dian)(dian)工程中有很大的應用空間，尤其在高海(hai)拔地區(qu)有著更為(wei)廣闊的前景。擴(kuo)(kuo)徑(jing)鋼(gang)芯鋁絞線(xian)LGKK適用于(yu)高低壓(ya)輸電(dian)(dian)(dian)線(xian)中電(dian)(dian)(dian)廠及變電(dian)(dian)(dian)站配電(dian)(dian)(dian)線(xian)路。擴(kuo)(kuo)徑(jing)導線(xian)是以滿足技術(shu)條件的常(chang)規導線(xian)規格為(wei)基(ji)準，采取擴(kuo)(kuo)大導線(xian)外徑(jing)技術(shu)，在保證(zheng)電(dian)(dian)(dian)暈所(suo)要求(qiu)的導...

擴徑(jing)導線(xian)就是把(ba)普(pu)通(tong)的(de)(de)導線(xian)做(zuo)成中空（里面用(yong)多股鋼芯線(xian)和支撐層(ceng)(ceng)做(zuo)成）或(huo)者減(jian)少其中部分(fen)層(ceng)(ceng)單線(xian)數量（使該層(ceng)(ceng)單線(xian)間(jian)存在一定數量空隙），最(zui)終達到增(zeng)加導線(xian)的(de)(de)等(deng)效(xiao)半徑(jing)的(de)(de)目的(de)(de)。當線(xian)路(lu)的(de)(de)電壓超過220KV時，為了降(jiang)低線(xian)路(lu)電抗和電暈損(sun)耗，通(tong)常采用(yong)擴徑(jing)導線(xian)。擴徑(jing)導...

擴徑導(dao)線(xian)(xian)線(xian)(xian)膨脹系數(shu)較好(hao)，電(dian)暈損(sun)失小，有良好(hao)的散熱性(xing)。適用于高低壓(ya)輸電(dian)線(xian)(xian)中(zhong)電(dian)廠及變電(dian)站配電(dian)線(xian)(xian)路、母線(xian)(xian)等。減少電(dian)暈損(sun)失，節約有色金(jin)屬。擴徑導(dao)線(xian)(xian)就是把(ba)普通(tong)的導(dao)線(xian)(xian)做(zuo)成(cheng)(cheng)中(zhong)空（里面用多(duo)股芯線(xian)(xian)和支(zhi)撐層(ceng)做(zuo)成(cheng)(cheng)）或者減少其中(zhong)部分層(ceng)單線(xian)(xian)數(shu)量（使該(gai)層(ceng)單線(xian)(xian)間存在一(yi)定(ding)...

對于架(jia)空(kong)輸電(dian)線(xian)路(lu)(lu)，除了導線(xian)電(dian)阻的有(you)(you)功損耗(hao)外(wai)，還有(you)(you)電(dian)暈損耗(hao)和沿(yan)絕緣(yuan)子漏電(dian)所致的有(you)(you)功損耗(hao)；對于電(dian)纜線(xian)路(lu)(lu)，主(zhu)要(yao)是介(jie)(jie)質損耗(hao)。一般在架(jia)空(kong)線(xian)路(lu)(lu)中，由(you)(you)絕緣(yuan)子泄(xie)露電(dian)流(liu)而(er)產生(sheng)的有(you)(you)功損耗(hao)極(ji)小，可(ke)忽略不記，所以對架(jia)空(kong)線(xian)路(lu)(lu)主(zhu)要(yao)考慮(lv)電(dian)暈損耗(hao)。由(you)(you)于架(jia)空(kong)線(xian)路(lu)(lu)的絕緣(yuan)介(jie)(jie)質是...

電線電纜(lan)老化故(gu)障的(de)原(yuan)因(yin)有(you)很多(duo)(duo)種(zhong)，最直(zhi)接原(yuan)因(yin)是絕緣(yuan)降低而被擊穿(chuan)。導敏絕緣(yuan)降低的(de)因(yin)素很多(duo)(duo)，根(gen)據實際運行經(jing)驗，遼寧大元(yuan)電纜(lan)小編歸納起來(lai)以(yi)下(xia)幾種(zhong)情況。電纜(lan)老化的(de)幾點原(yuan)因(yin)1)電纜(lan)老化原(yuan)因(yin):外力損傷。由(you)近(jin)幾年的(de)運行分析來(lai)看，尤其是在經(jing)濟高速發展中的(de)海...

1.防(fang)雷擊反(fan)事故(gu)(gu)措(cuo)施(1)更換、安裝支柱式絕緣(yuan)子或瓷橫擔。雷擊10kV架空線路針式絕緣(yuan)子事故(gu)(gu)，是最(zui)多(duo)見(jian)的(de)(de)設備事故(gu)(gu)，造成這類事故(gu)(gu)的(de)(de)原因除了本地區雷暴日多(duo)之外，針式絕緣(yuan)子質量不(bu)過關也是主要(yao)原因，前幾年我們采用和(he)安裝的(de)(de)P-15、P-20單裙、雙裙...

  擴徑(jing)(jing)導線是(shi)以滿(man)足技術(shu)條件的(de)(de)常規導線規格為基準(zhun)，采取擴大(da)導線外徑(jing)(jing)技術(shu)，在保證電暈所要求的(de)(de)導線外徑(jing)(jing)前提下，減少導線的(de)(de)鋁截(jie)面(mian)，從而減少導線的(de)(de)總(zong)重量，減少鐵塔荷載和結構重量，極大(da)地降低線路造(zao)價。  ...

在750千伏輸電線(xian)(xian)路(lu)上應用擴(kuo)(kuo)徑導(dao)線(xian)(xian)，既可(ke)以減(jian)少工程造價，又能(neng)降低輸電線(xian)(xian)路(lu)對沿(yan)線(xian)(xian)環(huan)境(jing)的(de)影響，滿足建設(she)“資(zi)源節約型、環(huan)境(jing)友好型”社會的(de)要(yao)求。擴(kuo)(kuo)徑導(dao)線(xian)(xian)是以滿足技(ji)術條件的(de)常規(gui)導(dao)線(xian)(xian)規(gui)格為基準，采取擴(kuo)(kuo)大導(dao)線(xian)(xian)外(wai)(wai)徑技(ji)術，在保證電暈所(suo)要(yao)求的(de)導(dao)線(xian)(xian)外(wai)(wai)徑前提下(xia)，減(jian)...

750千伏以上(shang)輸電(dian)線(xian)(xian)路(lu)運行(xing)容易(yi)產生電(dian)暈，不(bu)但消(xiao)耗大(da)量功(gong)率，而且其(qi)派生出的(de)無線(xian)(xian)干擾和可(ke)聽噪音嚴重影響生態環境。國際(ji)上(shang)一般(ban)采用增(zeng)加(jia)導(dao)(dao)線(xian)(xian)的(de)外徑和光潔表面來解決。實際(ji)工作中(zhong)，輸電(dian)線(xian)(xian)路(lu)所需的(de)導(dao)(dao)線(xian)(xian)截面一般(ban)達不(bu)到限制電(dian)暈要求的(de)外徑，只能采用加(jia)大(da)導(dao)(dao)線(xian)(xian)的(de)...