國家現行標準(zhun)CJJ／T 28《城鎮供(gong)熱(re)管網(wang)工(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)及驗收規(gui)范》適用于采(cai)用明挖、暗挖、頂管、定向(xiang)鉆等施(shi)(shi)工(gong)(gong)工(gong)(gong)藝(yi)，并符合下列參數(shu)的城鎮供(gong)熱(re)管網(wang)工(gong)(gong)程(cheng)的施(shi)(shi)工(gong)(gong)及驗收：

  工(gong)作壓(ya)力小(xiao)(xiao)于或(huo)等(deng)(deng)(deng)于1.6MPa，介(jie)質(zhi)(zhi)溫(wen)(wen)度小(xiao)(xiao)于或(huo)等(deng)(deng)(deng)于350℃的蒸汽管(guan)(guan)網(wang)；工(gong)作壓(ya)力小(xiao)(xiao)于或(huo)等(deng)(deng)(deng)于2.5MPa，介(jie)質(zhi)(zhi)溫(wen)(wen)度小(xiao)(xiao)于或(huo)等(deng)(deng)(deng)于200℃的熱水管(guan)(guan)網(wang)。