輸電線路施工

輸電(dian)(dian)(dian)線(xian)(xian)路是(shi)用(yong)變(bian)壓器將(jiang)發電(dian)(dian)(dian)機發出的電(dian)(dian)(dian)能(neng)升壓后(hou)，再經斷路器等(deng)控(kong)制設備(bei)(bei)接入(ru)輸電(dian)(dian)(dian)線(xian)(xian)路來實現。結構形式(shi)，輸電(dian)(dian)(dian)線(xian)(xian)路分為架(jia)空輸電(dian)(dian)(dian)線(xian)(xian)路和電(dian)(dian)(dian)纜線(xian)(xian)路。輸電(dian)(dian)(dian)線(xian)(xian)路的保(bao)(bao)護(hu)(hu)有(you)主(zhu)(zhu)保(bao)(bao)護(hu)(hu)與后(hou)備(bei)(bei)保(bao)(bao)護(hu)(hu)之分。主(zhu)(zhu)保(bao)(bao)護(hu)(hu)一般有(you)兩種(zhong)縱差保(bao)(bao)護(hu)(hu)和三段式(shi)電(dian)(dian)(dian)流保(bao)(bao)護(hu)(hu)。而在高壓系(xi)統中主(zhu)(zhu)要(yao)采用(yong)高頻保(bao)(bao)護(hu)(hu)。后(hou)備(bei)(bei)保(bao)(bao)護(hu)(hu)主(zhu)(zhu)要(yao)有(you)距離保(bao)(bao)護(hu)(hu)，零序保(bao)(bao)護(hu)(hu)，方向保(bao)(bao)護(hu)(hu)等(deng)。