1.A.在不需改換的電桿頂端橫線路偏向打好閣下兩側姑且拉線。在需要改換的電桿頂端打好四方姑且(qie)拉(la)線。

2.拆開被改換電桿的邊相導線及地線線夾，讓導線及地線饅饅落至地下。拆除被改換電桿的絕緣子串及地線金具串、吊桿及模擔頭。拆開與被改換電桿相連的上叉梁，將拆開的又梁敗壞地掛在中導線掛線點上。與不需改換電桿相(xiang)連的核擔中(zhong)吊桿應事(shi)先用鋼(gang)絲繩作好(hao)補強(qiang)。水泥電線(xian)桿

水(shui)泥電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)分為預應力(li)(li)和非預應力(li)(li)電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)兩種，一般(ban)制作(zuo)電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)的(de)流程(cheng)為電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)鋼(gang)筋加工及鋼(gang)筋籠的(de)制作(zuo)，鋼(gang)筋的(de)冷拔，切斷彎曲和綁扎等。電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)混凝(ning)土配料與攪(jiao)拌然(ran)后對(dui)制造(zao)(zao)電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)的(de)材料進行離心成(cheng)型，震動攪(jiao)拌等工藝制造(zao)(zao)成(cheng)型電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)，電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)的(de)模具(ju)是兩個半模合成(cheng)的(de)，在(zai)制造(zao)(zao)電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)時(shi)需要一定的(de)離心力(li)(li)。使水(shui)泥料形成(cheng)中間(jian)空(kong)的(de)電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)，然(ran)后對(dui)成(cheng)型的(de)電(dian)(dian)線(xian)(xian)(xian)桿(gan)(gan)(gan)進行養護。

      拉(la)(la)線(xian)盤(pan)(pan)安裝拉(la)(la)線(xian)盤(pan)(pan)的埋探和方向(xiang)應(ying)符合設計要求(qiu)，拉(la)(la)線(xian)盤(pan)(pan)的深度宜小(xiao)于1．2m，拉(la)(la)線(xian)坑(keng)應(ying)有斜(xie)拉(la)(la)拉(la)(la)線(xian)盤(pan)(pan)前．應(ying)把(ba)拉(la)(la)線(xian)組裝。然后進行整體(ti)坪設。安裝時(shi)抗絞棒穿過水泥拉(la)(la)線(xian)盤(pan)(pan)，剛墊(dian)圈、螺絲固定。拉(la)(la)線(xian)俸多采劇(ju)鍍鋅圓鋼。

　　把拉線(xian)(xian)(xian)裝好后(hou)(hou)，將拉線(xian)(xian)(xian)盤放正，使底把拉環露出(chu)地面(mian)500—700 mm，然后(hou)(hou)分層(ceng)填土夯實：拉線(xian)(xian)(xian)標在地面(mian)上200—300 mm處，都要(yao)涂刷(shua)瀝青，還要(yao)從拉線(xian)(xian)(xian)標出(chu)土l 50 mnl處到地面(mian)下(xia)350 mm處纏(chan)卷80mnl寬的麻帶，并浸(jin)透(tou)瀝青．以防(fang)腐(fu)蝕。