國家現行標(biao)準(zhun)CJJ／T 28《城(cheng)鎮(zhen)供(gong)熱(re)管(guan)(guan)網工(gong)(gong)程施工(gong)(gong)及驗收規范》適(shi)用于采用明挖、暗挖、頂管(guan)(guan)、定向鉆等施工(gong)(gong)工(gong)(gong)藝，并符合下列參數的城(cheng)鎮(zhen)供(gong)熱(re)管(guan)(guan)網工(gong)(gong)程的施工(gong)(gong)及驗收：

  工作(zuo)壓力小(xiao)(xiao)于(yu)或等(deng)于(yu)1.6MPa，介質(zhi)溫度小(xiao)(xiao)于(yu)或等(deng)于(yu)350℃的蒸(zheng)汽管網(wang)；工作(zuo)壓力小(xiao)(xiao)于(yu)或等(deng)于(yu)2.5MPa，介質(zhi)溫度小(xiao)(xiao)于(yu)或等(deng)于(yu)200℃的熱水管網(wang)。