高壓(ya)電(dian)(dian)力(li)電(dian)(dian)纜(lan)連(lian)(lian)接(jie)(jie)頭(tou)用于電(dian)(dian)力(li)電(dian)(dian)纜(lan)自身的連(lian)(lian)接(jie)(jie)，有連(lian)(lian)接(jie)(jie)接(jie)(jie)頭(tou)、絕緣中間接(jie)(jie)頭(tou)，對(dui)充油電(dian)(dian)力(li)電(dian)(dian)纜(lan)及(ji)鋼(gang)管(guan)電(dian)(dian)力(li)電(dian)(dian)纜(lan)還有塞(sai)止式接(jie)(jie)頭(tou)等。

　　1.普通連接頭

　　它用于連(lian)接兩(liang)根相鄰電力電纜(lan)。

　　在(zai)(zai)高壓(ya)電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)線路中，直通(tong)(tong)(tong)接(jie)頭(tou)(tou)除連(lian)(lian)接(jie)纜(lan)(lan)芯(xin)導體保(bao)證電(dian)(dian)(dian)(dian)氣連(lian)(lian)通(tong)(tong)(tong)外，對自容式(shi)充(chong)油電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)連(lian)(lian)接(jie)頭(tou)(tou)必須保(bao)持(chi)線芯(xin)中油流暢通(tong)(tong)(tong)。但因連(lian)(lian)接(jie)頭(tou)(tou)是在(zai)(zai)現場手工(gong)操(cao)作(zuo)，其(qi)工(gong)藝條件(jian)差。因而在(zai)(zai)線芯(xin)連(lian)(lian)接(jie)采用(yong)壓(ya)接(jie)條件(jian)下(xia)，對線芯(xin)連(lian)(lian)接(jie)處電(dian)(dian)(dian)(dian)場集(ji)中問題的(de)(de)處理(li)，通(tong)(tong)(tong)過增加絕(jue)(jue)緣厚度，以此降低接(jie)頭(tou)(tou)工(gong)作(zuo)場強來確保(bao)連(lian)(lian)接(jie)頭(tou)(tou)的(de)(de)安全運行。通(tong)(tong)(tong)常是在(zai)(zai)電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)絕(jue)(jue)緣上(shang)面繞(rao)(rao)包(bao)增繞(rao)(rao)絕(jue)(jue)緣，增繞(rao)(rao)絕(jue)(jue)緣的(de)(de)兩端形(xing)成錐形(xing)面應(ying)力(li)(li)錐。在(zai)(zai)增繞(rao)(rao)絕(jue)(jue)緣外面繞(rao)(rao)包(bao)絕(jue)(jue)緣屏蔽，將兩端電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)絕(jue)(jue)緣屏蔽相連(lian)(lian)，而其(qi)外面有一外亮鋼(gang)管把絕(jue)(jue)緣與大氣隔絕(jue)(jue)，這樣即可承受充(chong)油電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)油壓(ya)。

　　高壓電力電纜連接頭種類有哪些?

　　2.絕緣接頭

　　絕(jue)緣接頭(tou)內絕(jue)緣結構和尺寸與普通接頭(tou)相同。110~220kV充油電(dian)(dian)力電(dian)(dian)纜絕(jue)緣接頭(tou)，主要用于大長度(du)電(dian)(dian)力電(dian)(dian)纜線(xian)路中，使接頭(tou)兩端(duan)電(dian)(dian)力電(dian)(dian)纜的金屬護套或(huo)金屬屏蔽(bi)層(ceng)及半導電(dian)(dian)層(ceng)在電(dian)(dian)氣上(shang)斷開，以便交叉互(hu)連，減少護層(ceng)(或(huo)屏蔽(bi)層(ceng)〉損耗。

　　3.塞止式接頭

　　塞止(zhi)式(shi)接(jie)頭(tou)(tou)是充油(you)電(dian)(dian)力(li)(li)電(dian)(dian)纜附件電(dian)(dian)性能*薄弱的(de)(de)環節，也是結構*復雜的(de)(de)接(jie)頭(tou)(tou)。它(ta)主要用于(yu)落(luo)差大于(yu)規定(ding)值(zhi)的(de)(de)黠性浸漬紙(zhi)絕(jue)緣電(dian)(dian)力(li)(li)電(dian)(dian)纜線路中，截斷油(you)路，防止(zhi)高端(duan)電(dian)(dian)力(li)(li)電(dian)(dian)纜絕(jue)緣干枯、低端(duan)電(dian)(dian)力(li)(li)電(dian)(dian)纜絕(jue)緣油(you)壓超過(guo)規定(ding)值(zhi)。

　　110kV單室式塞止中間接頭，通常(chang)用(yong)一個環氧樹脂套(tao)管(guan)將兩根電(dian)力電(dian)纜(lan)的油流分(fen)開。

　　220kV雙(shuang)室式(shi)塞止(zhi)中間接頭，用兩個環氧樹脂(zhi)套管將兩根(gen)電(dian)力電(dian)纜(lan)(lan)的(de)油流分(fen)開，在(zai)兩段電(dian)力電(dian)纜(lan)(lan)的(de)塞止(zhi)管上面(mian)有一外(wai)腔(qiang)(qiang)，兩個含有電(dian)力電(dian)纜(lan)(lan)的(de)內腔(qiang)(qiang)及一個外(wai)腔(qiang)(qiang)油流相通，呈兩道密(mi)封結構。

　　高壓電力電纜連接頭種類有哪些?

　　4.鋼管充油電力電纜(lan)接頭

　　銅管充油電力電纜(lan)接(jie)頭有普通連接(jie)接(jie)頭和半塞止接(jie)頭兩種。

　　普(pu)通連接(jie)接(jie)頭(tou)，用于電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)制造(zao)長度連接(jie)，它(ta)的(de)內(nei)絕(jue)緣結構一(yi)(yi)(yi)般與(yu)自容式(shi)充油(you)(you)電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)接(jie)頭(tou)相間，其外殼是一(yi)(yi)(yi)個直徑(jing)稍大于電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)管(guan)(guan)道的(de)銅(tong)管(guan)(guan)。半塞止接(jie)頭(tou)，用于較長的(de)鋼管(guan)(guan)充油(you)(you)電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)線路(lu)。它(ta)是為避免(mian)一(yi)(yi)(yi)旦(dan)發生漏油(you)(you)事(shi)故造(zao)成大量電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)袖的(de)流(liu)失而設計的(de)接(jie)頭(tou)，用來分(fen)隔供油(you)(you)區(qu)段(duan)，使兩區(qu)段(duan)的(de)油(you)(you)經過(guo)電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)絕(jue)緣層或旁路(lu)管(guan)(guan)流(liu)通。在接(jie)頭(tou)的(de)鋼管(guan)(guan)與(yu)電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)鋼管(guan)(guan)連接(jie)處，采用密封(feng)結構把(ba)電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)油(you)(you)路(lu)分(fen)開