鐵(tie)(tie)道(dao)(dao)棒(bang)(bang)形(xing)瓷(ci)絕(jue)(jue)緣(yuan)(yuan)子(zi)(zi)用(yong)于(yu)標稱(cheng)電(dian)壓25kV、工頻單相(xiang)交(jiao)流電(dian)氣化鐵(tie)(tie)道(dao)(dao)接觸網(wang)，用(yong)作接觸網(wang)的(de)對地(di)(di)絕(jue)(jue)緣(yuan)(yuan)及導線支(zhi)撐。執行(xing)鐵(tie)(tie)道(dao)(dao)部(bu)(bu)準TB/T3199.1-2008《電(dian)氣化鐵(tie)(tie)路(lu)接觸網(wang)用(yong)絕(jue)(jue)緣(yuan)(yuan)子(zi)(zi)第(di)1部(bu)(bu)分：棒(bang)(bang)形(xing)瓷(ci)絕(jue)(jue)緣(yuan)(yuan)子(zi)(zi)》進行(xing)圖樣設計(ji)和產(chan)品試驗。Q12S-290/1400及Q12D-290/1400鐵(tie)(tie)道(dao)(dao)棒(bang)(bang)形(xing)瓷(ci)絕(jue)(jue)緣(yuan)(yuan)子(zi)(zi)于(yu)2009年(nian)5月26日(ri)被評(ping)(ping)為(wei)“重慶市重點新產(chan)品”。并(bing)成(cheng)功在云南、新疆等地(di)(di)鐵(tie)(tie)路(lu)系統投(tou)入使用(yong)，得(de)到(dao)用(yong)戶一致好評(ping)(ping)。