生產廠家生產 鋼芯鋁絞線簡稱:"LGJ" 是(shi)由鋁線(xian)(xian)(xian)和(he)(he)鋼(gang)(gang)線(xian)(xian)(xian)絞(jiao)合而成的(de),和(he)(he)普通(tong)鋁絞(jiao)線(xian)(xian)(xian)"L J"主(zhu)要適(shi)用(yong)于(yu)架空輸電線(xian)(xian)(xian)路用(yong)。鋼(gang)(gang)芯(xin)鋁絞(jiao)線(xian)(xian)(xian)的(de)內部是(shi)鋼(gang)(gang)"芯(xin)",外部是(shi)用(yong)鋁線(xian)(xian)(xian)通(tong)過絞(jiao)合方(fang)式(shi)纏繞在鋼(gang)(gang)芯(xin)周圍;鋼(gang)(gang)芯(xin)主(zhu)要起增加強度的(de)作用(yong),鋁絞(jiao)線(xian)(xian)(xian)主(zhu)要起傳送(song)電能的(de)作用(yong)。兩者(zhe)均(jun)屬于(yu)裸導(dao)線(xian)(xian)(xian),在用(yong)途(tu)上基本相同(tong)(tong),型號規格上表示(shi)方(fang)法不同(tong)(tong)。
普通鋁絞線:型號用 "L J"表示,屬于裸導線。目前中國普遍采用鋁包鋼絞線(LGJ)作為導(dao)(dao)線(xian)(xian)(xian)(xian),鋼(gang)芯主要(yao)起(qi)(qi)增加強度的作用,鋁絞線(xian)(xian)(xian)(xian)主要(yao)起(qi)(qi)傳送(song)電(dian)能(neng)的作。根據電(dian)壓不同,導(dao)(dao)線(xian)(xian)(xian)(xian)橫截面積(ji)也(ye)不同。比如(ru):目前在500千伏輸電(dian)線(xian)(xian)(xian)(xian)路(lu)的導(dao)(dao)線(xian)(xian)(xian)(xian),一般使(shi)用 LGJ-400/35的導(dao)(dao)線(xian)(xian)(xian)(xian)。其中L是(shi)鋁線(xian)(xian)(xian)(xian)的簡稱,G是(shi)鋼(gang)芯的簡稱,J是(shi)絞線(xian)(xian)(xian)(xian)的簡稱,400是(shi)鋁400平方(fang)毫米(mi),35是(shi)鋼(gang)35平方(fang)毫米(mi)。
GB1179-83"鋁(lv)絞(jiao)線"標稱截面為:240平(ping)(ping)(ping)方毫米的鋁(lv)絞(jiao)線。規格(ge)型號(hao)(hao)可表(biao)示(shi)為:L J-240 GB1179-83GB1179-83 標稱截面為:鋁(lv)300平(ping)(ping)(ping)方毫米,鋼50平(ping)(ping)(ping)方毫米的"鋼芯鋁(lv)絞(jiao)線"。規格(ge)型號(hao)(hao)可表(biao)示(shi)為:LGJ-300/50 GB1179-83
鋼芯鋁絞線(xian)主(zhu)要用(yong)(yong)(yong)途(tu):一(yi)般(ban)對于(yu)高壓輸(shu)電線(xian)路(lu)(lu)(lu),由于(yu)線(xian)路(lu)(lu)(lu)的(de)路(lu)(lu)(lu)徑(jing)有限,又不可(ke)能在一(yi)個路(lu)(lu)(lu)徑(jing)上架(jia)(jia)多(duo)條線(xian)路(lu)(lu)(lu),于(yu)是(shi)人們想出了采(cai)用(yong)(yong)(yong)一(yi)個路(lu)(lu)(lu)徑(jing),一(yi)套鐵塔(ta),掛多(duo)條導線(xian),即一(yi)條線(xian)路(lu)(lu)(lu)相(xiang)當于(yu)架(jia)(jia)了多(duo)條線(xian)路(lu)(lu)(lu)的(de)方(fang)法。例(li)如:對于(yu)500KV的(de)輸(shu)電線(xian)路(lu)(lu)(lu),中國(guo)大多(duo)采(cai)用(yong)(yong)(yong)掛四條導線(xian)的(de)方(fang)式(shi),這種架(jia)(jia)線(xian)的(de)方(fang)式(shi)稱(cheng)為同塔(ta)并架(jia)(jia)。這就是(shi)為什么有的(de)桿使用(yong)(yong)(yong)于(yu)"L J" 也使用(yong)(yong)(yong)"LGJ"的(de)主(zhu)要原因。