铁(tie)道棒形(xing)瓷绝缘(yuan)子用(yong)(yong)(yong)(yong)于标称电(dian)压25kV、工频单相交流电(dian)气(qi)化铁(tie)道接(jie)(jie)触(chu)(chu)网，用(yong)(yong)(yong)(yong)作(zuo)接(jie)(jie)触(chu)(chu)网的对(dui)地绝缘(yuan)及(ji)导线支撑。执行铁(tie)道部(bu)准TB/T3199.1-2008《电(dian)气(qi)化铁(tie)路接(jie)(jie)触(chu)(chu)网用(yong)(yong)(yong)(yong)绝缘(yuan)子第1部(bu)分：棒形(xing)瓷绝缘(yuan)子》进行图样(yang)设计和产品试验。Q12S-290/1400及(ji)Q12D-290/1400铁(tie)道棒形(xing)瓷绝缘(yuan)子于2009年5月26日被(bei)评为“重庆市重点新(xin)产品”。并(bing)成(cheng)功在云南、新(xin)疆(jiang)等地铁(tie)路系统投(tou)入(ru)使(shi)用(yong)(yong)(yong)(yong)，得到(dao)用(yong)(yong)(yong)(yong)户(hu)一致(zhi)好评。