分(fen)類：電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)主要分(fen)為(wei)裸電(dian)(dian)(dian)(dian)(dian)線(xian)、繞組線(xian)、電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、通信(xin)(xin)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)和電(dian)(dian)(dian)(dian)(dian)氣(qi)裝(zhuang)(zhuang)備用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)。 基(ji)(ji)本結構：電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)基(ji)(ji)本結構包(bao)(bao)括導體（傳(chuan)導電(dian)(dian)(dian)(dian)(dian)流的(de)(de)部(bu)分(fen)）和絕緣材料(liao)(liao)（保護導體的(de)(de)外層）。命(ming)名：電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)命(ming)名通常較為(wei)復雜，通常使用(yong)(yong)簡單名稱結合(he)型(xing)號規格來代替(ti)完整(zheng)名稱。應用(yong)(yong)：電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)用(yong)(yong)于(yu)電(dian)(dian)(dian)(dian)(dian)力(li)輸(shu)送(song)，通信(xin)(xin)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)用(yong)(yong)于(yu)數據傳(chuan)輸(shu)，電(dian)(dian)(dian)(dian)(dian)氣(qi)裝(zhuang)(zhuang)備用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)用(yong)(yong)于(yu)各種電(dian)(dian)(dian)(dian)(dian)氣(qi)設備的(de)(de)連接。制造工(gong)(gong)藝(yi)：電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)制造涉及多種工(gong)(gong)藝(yi)，包(bao)(bao)括金屬熔煉、塑(su)料(liao)(liao)加(jia)工(gong)(gong)和紡織
點擊：2025
（1）準備階段(duan)：檢查(cha)(cha)熱縮(suo)電(dian)纜(lan)附件(jian)是否(fou)齊備，型號(hao)是否(fou)相配，檢查(cha)(cha)并確認電(dian)纜(lan)有無潮(chao)氣(qi)后，檢查(cha)(cha)電(dian)纜(lan)。（2）切除(chu)多余電(dian)纜(lan)，根(gen)據現場情況決定電(dian)纜(lan)長度。（3）剝除(chu)護層(ceng)。（4）焊接(jie)接(jie)地線，將接(jie)地線焊接(jie)在鋼(gang)帶(dai)上。（5）填充(chong)三叉口及(ji)繞(rao)包密封膠。（6）安裝三芯分支護套(tao)，將護套(tao)套(tao)入根(gen)部(bu)(bu)(bu)，從中部(bu)(bu)(bu)開始收縮(suo)，先往根(gen)部(bu)(bu)(bu)，再往指部(bu)(bu)(bu)。（7）剝銅(tong) 帶(dai)和外半導電(dian)層(ceng)，剝切三芯分支套(tao)口20mm以(yi)上的銅(tong)帶(dai)，嚴(yan)禁損傷主絕緣(yuan)，清除(chu)干凈半導電(dian)層(ceng)。（
點擊：2025
(1)、裸電(dian)(dian)線(xian)及(ji)裸導(dao)體(ti)(ti)制品本(ben)類產(chan)品的(de)(de)主(zhu)(zhu)要特(te)征是(shi)：純(chun)的(de)(de)導(dao)體(ti)(ti)金屬，無(wu)絕(jue)緣及(ji)護(hu)套層(ceng)，如(ru)(ru)鋼芯(xin)鋁絞(jiao)線(xian)、銅鋁匯流(liu)排、電(dian)(dian)力機車線(xian)等；加工工藝主(zhu)(zhu)要是(shi)壓力加工，如(ru)(ru)熔煉、壓延、拉(la)制、絞(jiao)合(he)/緊壓絞(jiao)合(he)等；產(chan)品主(zhu)(zhu)要用在城(cheng)郊、農村、用戶主(zhu)(zhu)線(xian)、開關(guan)柜等。(2)、電(dian)(dian)力電(dian)(dian)纜本(ben)類產(chan)品主(zhu)(zhu)要特(te)征是(shi)：在導(dao)體(ti)(ti)外擠（繞）包絕(jue)緣層(ceng)，如(ru)(ru)架空絕(jue)緣電(dian)(dian)纜，或幾芯(xin)絞(jiao)合(he)（對應電(dian)(dian)力系統的(de)(de)相線(xian)、零線(xian)和地線(xian)），如(ru)(ru)二(er)芯(xin)以上架空絕(jue)緣電(dian)(dian)纜，或再增加護(hu)套層(ceng)，如(ru)(ru)塑料/橡(xiang)套
點(dian)擊(ji)：2025
（1）電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)額(e)定(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)要(yao)(yao)大于或等(deng)于安(an)裝點(dian)供電(dian)(dian)(dian)(dian)(dian)系統(tong)的(de)額(e)定(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)；（2）電(dian)(dian)(dian)(dian)(dian)纜(lan)持(chi)續容許(xu)電(dian)(dian)(dian)(dian)(dian)流(liu)應(ying)等(deng)于或大于供電(dian)(dian)(dian)(dian)(dian)負載(zai)的(de)最大持(chi)續電(dian)(dian)(dian)(dian)(dian)流(liu)；（3）線(xian)芯截面要(yao)(yao)滿足供電(dian)(dian)(dian)(dian)(dian)系統(tong)短路時的(de)穩定(ding)性的(de)要(yao)(yao)求；（4）根(gen)據(ju)電(dian)(dian)(dian)(dian)(dian)纜(lan)長(chang)度驗算電(dian)(dian)(dian)(dian)(dian)壓(ya)降是否(fou)符合要(yao)(yao)求；（5）線(xian)路末端的(de)最小短路電(dian)(dian)(dian)(dian)(dian)流(liu)應(ying)能使保護裝置可(ke)靠的(de)動(dong)作。
點擊：2025
R－連接(jie)用軟(ruan)電纜（電線），軟(ruan)結構V－絕緣聚氯(lv)乙(yi)烯(xi)(xi)V－聚氯(lv)乙(yi)烯(xi)(xi)絕緣V－聚氯(lv)乙(yi)烯(xi)(xi)護(hu)套(tao)B－平型(xing)（扁(bian)形）S－雙絞型(xing)A－鍍錫或(huo)鍍銀F－耐高溫P－編織屏蔽(bi)P2－銅帶(dai)屏蔽(bi)P22－鋼帶(dai)鎧裝Y—預制型(xing)、一般省(sheng)略，或(huo)聚烯(xi)(xi)烴護(hu)套(tao)FD—產品類別代號，指(zhi)分(fen)支電纜。將要(yao)頒(ban)布(bu)的建設部標準(zhun)用FZ表示，其實質相同YJ—交(jiao)聯(lian)聚乙(yi)烯(xi)(xi)絕緣V—聚氯(lv)乙(yi)烯(xi)(xi)絕緣或(huo)護(hu)套(tao)ZR—阻燃型(xing)NH—耐火型(xing)WDZ—無鹵低煙阻燃型(xing)WDN—無鹵低煙耐火型(xing)RV 銅芯
點擊：2025
電(dian)(dian)(線(xian)(xian))纜工作電(dian)(dian)流(liu)計(ji)算公式：單相(xiang)I=P÷(U×cosΦ)P-功(gong)率(W)；U-電(dian)(dian)壓(220V)；cosΦ-功(gong)率因素(su)(0.8)；I-相(xiang)線(xian)(xian)電(dian)(dian)流(liu)(A)。三相(xiang)I=P÷(U×1.732×cosΦ)P-功(gong)率(W)；U-電(dian)(dian)壓(380V)；cosΦ-功(gong)率因素(su)(0.8)；I-相(xiang)線(xian)(xian)電(dian)(dian)流(liu)(A)。一般銅導線(xian)(xian)的(de)安全截(jie)流(liu)量為5-8A/平方(fang)毫(hao)米，鋁導線(xian)(xian)的(de)安全截(jie)流(liu)量為3-5A/平方(fang)毫(hao)米。在(zai)單相(xiang)220V線(xian)(xian)路中，每1KW功(gong)率的(de)電(dian)(dian)流(liu)在(zai)4
點(dian)擊：2025
在電(dian)(dian)(dian)(dian)力(li)(li)(li)系統中常用的電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)有(you)電(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)和(he)控(kong)制(zhi)(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)兩大類(lei)，其(qi)中電(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)是(shi)(shi)用來輸送和(he)分配大功率電(dian)(dian)(dian)(dian)能(neng)的。按絕緣材料的不同，可(ke)以分為油浸紙絕緣電(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡皮(pi)絕 緣電(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)和(he)聚(ju)氯乙烯絕緣電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)，在工程(cheng)上應用最廣泛的是(shi)(shi)油浸紙絕緣電(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)，由于電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)在制(zhi)(zhi)作中，以及(ji)鋪設線(xian)路、環境溫度、施工原則等(deng)，國家(jia)都有(you)明文規定(ding)， 在此不再贅(zhui)述，本文主要對電(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)易發生故(gu)障的可(ke)能(neng)點(dian)及(ji)如何進行測試(shi)的幾種方法，介紹給(gei)大家(jia)。1、電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)故(gu)障的類(lei)型及(ji)
點擊(ji)：2025
電纜(lan)(lan)失效盡管看上(shang)去好像有很多原因(yin)(yin),但(dan)是實際上(shang)僅有四(si)個基本(ben)原因(yin)(yin)導(dao)致在拖拽(zhuai)電纜(lan)(lan)時電纜(lan)(lan)現場（露天或地下）失效。它們是:機械(xie)損(sun)傷(shang);彎曲半徑超出(chu)(chu)推薦(jian)值;電流過載;過度張力(li).上(shang)述(shu)原因(yin)(yin)單一或聯合出(chu)(chu)現都會導(dao)致嚴重(zhong)的(de)停(ting)機故障。認識到問題的(de)癥狀可幫助電纜(lan)(lan)用戶(hu)確定(ding)問題所在并(bing)著手解決。當四(si)個基本(ben)誘因(yin)(yin)之一出(chu)(chu)現時，要么導(dao)致電纜(lan)(lan)立(li)即(ji)無法使用，要么相繼出(chu)(chu)現一系列問題，表(biao)明(ming)電纜(lan)(lan)已經(jing)出(chu)(chu)現故障。1、機械(xie)損(sun)傷(shang) 直接表(biao)現：電纜(lan)(lan)的(de)外護套經(jing)
點擊：2025
電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)用電(dian)(dian)安全(quan)的(de)幾點小常(chang)識(shi)：1、 電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)線(xian)(xian)(xian)路以及電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)的(de)絕緣部分必須保持通順及良好，并定(ding)期按時檢查；插座、開關等處的(de)電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)絕不能(neng)外露，以防漏電(dian)(dian)、觸(chu)電(dian)(dian)等；不能(neng)亂(luan)拉亂(luan)接電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)，多大(da)平方的(de)電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)(lan)(lan)
點擊：2021
自(zi)動(dong)開(kai)關脫(tuo)(tuo)扣器(qi)整定電流(liu)選擇的口(kou)訣(jue)1.用途根據電動(dong)機容量(千瓦)或變壓器(qi)容量(千伏安)直接決定脫(tuo)(tuo)扣器(qi)額定電流(liu)的大小（安)2.口(kou)訣(jue):電動(dong)機瞬動(dong)，千瓦20 倍(bei)變壓器(qi)瞬動(dong)，千伏安3 倍(bei)熱脫(tuo)(tuo)扣器(qi)，按額定值3.說
點擊：2021
用電(dian)(dian)(dian)配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)計算一 對(dui)(dui)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)配(pei)(pei)(pei)(pei)線(xian)(xian)的(de)口(kou)(kou)訣(jue)(jue)1.用途 根據電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)容量(liang)(liang)(liang)(千瓦(wa))直(zhi)接決定所配(pei)(pei)(pei)(pei)支路導(dao)線(xian)(xian)截面(mian)的(de)大小,不必(bi)將電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)容量(liang)(liang)(liang)先算出電(dian)(dian)(dian)流,再來選導(dao)線(xian)(xian)截面(mian)。2.口(kou)(kou)訣(jue)(jue) 鋁芯(xin)絕緣(yuan)線(xian)(xian)各種截面(mian),所配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)容量(liang)(liang)(liang)(千瓦(wa)）的(de)加(jia)數關系:3.說明此口(kou)(kou)訣(jue)(jue)是對(dui)(dui)三相(xiang)380 伏電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)配(pei)(pei)(pei)(pei)線(xian)(xian)的(de)。導(dao)線(xian)(xian)為鋁芯(xin)絕緣(yuan)線(xian)(xian)(或塑料線(xian)(xian))穿管(guan)敷設。4.由于電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)容量(liang)(liang)(liang)等級較多,因此,口(kou)(kou)訣(jue)(jue)反過(guo)來表(biao)示，即指(zhi)出不同的(de)導(dao)線(xian)(xian)截面(mian)所配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)容量(liang)(liang)(liang)的(de)范圍。這(zhe)個范圍是以比(bi)“截
點(dian)擊：2021
電(dian)線電(dian)纜導體載(zai)流量的(de)計算口訣1. 用(yong)途：各種導線的(de)載(zai)流量(安(an)全電(dian)流)通常可以從手冊中查找。但(dan)利用(yong)口訣再配合一些簡(jian)單的(de)心算,便可直接算出,不必查表。導線的(de)載(zai)流量與導線的(de)載(zai)面有關,也與導線的(de)材料(鋁或(huo)銅)
點擊(ji)：2021
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