國家現行標(biao)準(zhun)CJJ／T 28《城(cheng)鎮供熱管網(wang)工(gong)(gong)程(cheng)(cheng)施工(gong)(gong)及驗(yan)(yan)收規范》適用于采用明挖、暗(an)挖、頂管、定向鉆(zhan)等施工(gong)(gong)工(gong)(gong)藝，并符合(he)下列參數的(de)城(cheng)鎮供熱管網(wang)工(gong)(gong)程(cheng)(cheng)的(de)施工(gong)(gong)及驗(yan)(yan)收：
工作壓力小于(yu)(yu)或(huo)等于(yu)(yu)1.6MPa，介質溫度(du)小于(yu)(yu)或(huo)等于(yu)(yu)350℃的蒸汽(qi)管(guan)(guan)網；工作壓力小于(yu)(yu)或(huo)等于(yu)(yu)2.5MPa，介質溫度(du)小于(yu)(yu)或(huo)等于(yu)(yu)200℃的熱水管(guan)(guan)網。
