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架空導線防雷金具是電力金具嗎？我來告訴你：是的，它是電力金具的一種。其結構設計合理，能夠適用于各種架空導線進行防雷，安裝固定方便，無須根據絕緣子的規格型號進行配置，防雷效果好，使用壽命很長。能很好的防止針式絕緣子P15、PS15、 P20及各種型號針式復合絕緣子在雷電沖擊下造成短路、絕緣子損壞以及斷線事故的發生。

它的(de)接觸電級(ji)(ji)在當雷電沖擊(ji)電壓超過規定數值(zhi)時，可與接地(di)電級(ji)(ji)間產(chan)生閃(shan)絡(luo)放(fang)電，保護全部導線免(mian)于燒斷，接地(di)電級(ji)(ji)可以(yi)安裝在絕(jue)緣子底(di)部桿塔橫擔(dan)上，形成低壓電級(ji)(ji)。

接(jie)觸電(dian)級可以(yi)垂直安裝在絕緣子的負荷側，將(jiang)導(dao)線(xian)卡入(ru)開(kai)槽內，使引弧臂(bei)朝向(xiang)(xiang)絕緣子，燃弧臂(bei)背(bei)向(xiang)(xiang)絕緣子，通過調整(zheng)防雷金(jin)具(ju)和接(jie)地電(dian)級之間的距(ju)離(li)約為L=110 mi±10 mm。

接觸電(dian)級的(de)兩(liang)本體(ti)為導電(dian)體(ti)，連接緊(jin)固件包括兩(liang)組螺(luo)栓(shuan)，兩(liang)組螺(luo)栓(shuan)分(fen)別穿設(she)在(zai)開(kai)槽的(de)兩(liang)側(ce)并將一(yi)本體(ti)和二本體(ti)連接緊(jin)固；一(yi)本體(ti)上引(yin)弧(hu)臂(bei)(bei)(bei)和燃(ran)弧(hu)臂(bei)(bei)(bei)與(yu)開(kai)槽的(de)中軸線在(zai)同(tong)一(yi)個平(ping)面(mian)內； 引(yin)弧(hu)臂(bei)(bei)(bei)和燃(ran)弧(hu)臂(bei)(bei)(bei)之間的(de)夾角(jiao)為鈍角(jiao)；燃(ran)弧(hu)臂(bei)(bei)(bei)的(de)末端呈(cheng)球狀結構，接地電(dian)級的(de)末端設(she)置有(you)球狀凸起。

對稱擰緊兩個緊固(gu)螺栓，將接(jie)觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)級牢固(gu)的(de)固(gu)定(ding)在導線上(shang)，接(jie)觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)級的(de)引弧臂能(neng)夠利用(yong)其與接(jie)地(di)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)級的(de)空間(jian)(jian)，在高壓作用(yong)下(xia)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)弧空間(jian)(jian)形(xing)成很強的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場，加強了陰級發射(she)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)弧空間(jian)(jian)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)作用(yong)，使電(dian)(dian)(dian)(dian)(dian)(dian)(dian)弧空間(jian)(jian)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)。