國家(jia)現行標(biao)準(zhun)CJJ／T 28《城鎮供熱管網(wang)工(gong)(gong)程(cheng)施工(gong)(gong)及驗(yan)收(shou)規(gui)范(fan)》適用于采用明挖(wa)、暗挖(wa)、頂管、定向(xiang)鉆(zhan)等(deng)施工(gong)(gong)工(gong)(gong)藝，并(bing)符合下列參(can)數的城鎮供熱管網(wang)工(gong)(gong)程(cheng)的施工(gong)(gong)及驗(yan)收(shou)：

  工作(zuo)壓力(li)小(xiao)于或(huo)(huo)等(deng)于1.6MPa，介(jie)質(zhi)溫(wen)度小(xiao)于或(huo)(huo)等(deng)于350℃的(de)蒸(zheng)汽管網；工作(zuo)壓力(li)小(xiao)于或(huo)(huo)等(deng)于2.5MPa，介(jie)質(zhi)溫(wen)度小(xiao)于或(huo)(huo)等(deng)于200℃的(de)熱(re)水(shui)管網。