铁(tie)道(dao)棒形(xing)(xing)瓷(ci)绝(jue)(jue)(jue)缘(yuan)(yuan)子(zi)用(yong)(yong)于标称电(dian)压25kV、工频单相(xiang)交(jiao)流电(dian)气(qi)化铁(tie)道(dao)接(jie)触(chu)网，用(yong)(yong)作接(jie)触(chu)网的(de)对地绝(jue)(jue)(jue)缘(yuan)(yuan)及导线支撑。执行(xing)铁(tie)道(dao)部准TB/T3199.1-2008《电(dian)气(qi)化铁(tie)路接(jie)触(chu)网用(yong)(yong)绝(jue)(jue)(jue)缘(yuan)(yuan)子(zi)第1部分：棒形(xing)(xing)瓷(ci)绝(jue)(jue)(jue)缘(yuan)(yuan)子(zi)》进行(xing)图样(yang)设(she)计和产品试验。Q12S-290/1400及Q12D-290/1400铁(tie)道(dao)棒形(xing)(xing)瓷(ci)绝(jue)(jue)(jue)缘(yuan)(yuan)子(zi)于2009年5月26日被评为(wei)“重(zhong)庆市重(zhong)点(dian)新产品”。并成功在云南、新疆(jiang)等地铁(tie)路系统投入使用(yong)(yong)，得到用(yong)(yong)户一(yi)致(zhi)好评。