國家現行標(biao)準CJJ／T 28《城(cheng)鎮(zhen)供熱管網工(gong)程(cheng)施工(gong)及驗(yan)收(shou)規范》適用(yong)于(yu)采用(yong)明挖、暗挖、頂(ding)管、定向鉆等施工(gong)工(gong)藝，并符合下列參數的城(cheng)鎮(zhen)供熱管網工(gong)程(cheng)的施工(gong)及驗(yan)收(shou)：

  工作壓力小于(yu)(yu)(yu)(yu)(yu)或等(deng)于(yu)(yu)(yu)(yu)(yu)1.6MPa，介(jie)質(zhi)溫度小于(yu)(yu)(yu)(yu)(yu)或等(deng)于(yu)(yu)(yu)(yu)(yu)350℃的蒸汽管網(wang)；工作壓力小于(yu)(yu)(yu)(yu)(yu)或等(deng)于(yu)(yu)(yu)(yu)(yu)2.5MPa，介(jie)質(zhi)溫度小于(yu)(yu)(yu)(yu)(yu)或等(deng)于(yu)(yu)(yu)(yu)(yu)200℃的熱水管網(wang)。