國家(jia)現(xian)行標準CJJ／T 28《城鎮(zhen)供(gong)熱管(guan)(guan)網工(gong)程施(shi)(shi)工(gong)及驗(yan)收規范》適用(yong)于采(cai)用(yong)明(ming)挖(wa)、暗挖(wa)、頂管(guan)(guan)、定向鉆等施(shi)(shi)工(gong)工(gong)藝，并符合下列(lie)參數的城鎮(zhen)供(gong)熱管(guan)(guan)網工(gong)程的施(shi)(shi)工(gong)及驗(yan)收：

  工(gong)作壓(ya)(ya)力(li)小于(yu)(yu)(yu)(yu)或(huo)(huo)等(deng)于(yu)(yu)(yu)(yu)1.6MPa，介(jie)質溫(wen)度(du)小于(yu)(yu)(yu)(yu)或(huo)(huo)等(deng)于(yu)(yu)(yu)(yu)350℃的蒸汽管網(wang)；工(gong)作壓(ya)(ya)力(li)小于(yu)(yu)(yu)(yu)或(huo)(huo)等(deng)于(yu)(yu)(yu)(yu)2.5MPa，介(jie)質溫(wen)度(du)小于(yu)(yu)(yu)(yu)或(huo)(huo)等(deng)于(yu)(yu)(yu)(yu)200℃的熱水管網(wang)。