熱鍍鋅10-60米拉線塔
拉(la)線(xian)(xian)塔(ta)(ta)是(shi)架空輸電線(xian)(xian)路的支持結構,使導線(xian)(xian)對地(di)面、地(di)物(wu)滿足(zu)限距要求,并(bing)能承(cheng)受導線(xian)(xian)、避雷線(xian)(xian)及本身的荷(he)載(zai)及外荷(he)載(zai)。拉(la)線(xian)(xian)塔(ta)(ta)主要分為(wei)自立式和(he)拉(la)線(xian)(xian)式兩種(zhong)類型。拉(la)線(xian)(xian)式塔(ta)(ta)受力較為(wei)合理,可靠性高,塔(ta)(ta)體(ti)截面小,塔(ta)(ta)架材(cai)料用量小,但拉(la)線(xian)(xian)基礎數量多,施工工藝(yi)復(fu)雜。