常有(you)的定(ding)型產品(pin),現在保留了U型螺(luo)栓式(shi)樣(通常叫船型線(xian)(xian)(xian)夾(jia)(jia)),它是(shi)由掛(gua)(gua)(gua)架U型螺(luo)栓,可(ke)鍛鑄鐵(tie)制造線(xian)(xian)(xian)夾(jia)(jia)船體、壓板(ban)組成(cheng)。另(ling)一種就是(shi)預絞式(shi)懸(xuan)垂(chui)線(xian)(xian)(xian)夾(jia)(jia)。懸(xuan)垂(chui)線(xian)(xian)(xian)夾(jia)(jia)用于將導(dao)線(xian)(xian)(xian)固定(ding)在直(zhi)(zhi)線(xian)(xian)(xian)桿(gan)塔(ta)(ta)(ta)的絕緣子串上(shang),或將避雷線(xian)(xian)(xian)懸(xuan)掛(gua)(gua)(gua)在直(zhi)(zhi)線(xian)(xian)(xian)桿(gan)塔(ta)(ta)(ta)上(shang),亦可(ke)用于換位桿(gan)塔(ta)(ta)(ta)上(shang)支(zhi)持(chi)換位導(dao)線(xian)(xian)(xian)以及耐張轉角桿(gan)塔(ta)(ta)(ta)跳線(xian)(xian)(xian)的固定(ding)。,(1)懸(xuan)垂(chui)線(xian)(xian)(xian)夾(jia)(jia)的船體掛(gua)(gua)(gua)軸(zhou)上(shang)掛(gua)(gua)(gua)板(ban)是(shi)通過(guo)插(cha)銷固定(ding)的,插(cha)銷內(nei)有(you)一平墊(dian)片,墊(dian)片遮住了掛(gua)(gua)(gua)軸(zhou)的連接部位,若不打開墊(dian)片,很(hen)難發現船體掛(gua)(gua)(gua)軸(zhou)的磨損(sun)情況(kuang),因(yin)此在檢查掛(gua)(gua)(gua)軸(zhou)的磨損(sun)程度時,必須取下插(cha)銷、打開墊(dian)片,同時在檢查中還(huan)應(ying)注意做好(hao)防(fang)范避雷線(xian)(xian)(xian)掉落的臨(lin)時措(cuo)施。
(2)為(wei)防止避雷線(xian)的(de)磨損,應按避雷線(xian)的(de)截面來(lai)選用懸垂線(xian)夾(jia)的(de)尺寸,在施工中嚴格按工藝要求做好(hao)線(xian)夾(jia)處避雷線(xian)的(de)鋁(lv)包帶包纏并將避雷線(xian)壓緊。
(3)在(zai)(zai)線路設計(ji)中,只對金(jin)具荷載有要(yao)求,而其它強度參(can)數則沒(mei)有要(yao)求檢驗。因此在(zai)(zai)風(feng)(feng)力較(jiao)強,風(feng)(feng)偏較(jiao)大(da)地(di)區,線路設計(ji)、施工選(xuan)擇懸垂線夾時,應考慮挑選(xuan)耐磨的線夾(如(ru)各種(zhong)合金(jin)類)和有防風(feng)(feng)偏組件的懸垂線夾。
(4)平常(chang)的線路(lu)(lu)維(wei)護工作(zuo)中,特別是線路(lu)(lu)的大(da)修(xiu)年檢時應嚴格按規程規范執行,對各類的懸垂線夾應按規定打開檢查(cha)。
對(dui)線(xian)(xian)路的檢(jian)查是線(xian)(xian)路維護工作經常(chang)會忽(hu)視(shi)的一個環節,在(zai)加(jia)(jia)強施工工藝和材料選型的同時,還應加(jia)(jia)強平(ping)常(chang)的維護管理,對(dui)生懸(xuan)垂線(xian)(xian)夾(jia)磨損的桿(gan)段(duan)設(she)立臺(tai)帳(zhang),縮短線(xian)(xian)夾(jia)檢(jian)查周期(qi),在(zai)日常(chang)巡視(shi)中(zhong)增加(jia)(jia)懸(xuan)垂線(xian)(xian)夾(jia)的檢(jian)查項目等。