國家現行標準CJJ／T 28《城鎮供熱管網(wang)工(gong)程施(shi)工(gong)及驗收規(gui)范》適用于(yu)采(cai)用明挖、暗(an)挖、頂管、定(ding)向鉆等施(shi)工(gong)工(gong)藝，并(bing)符合下(xia)列參(can)數的(de)城鎮供熱管網(wang)工(gong)程的(de)施(shi)工(gong)及驗收：

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