國家現行標準CJJ/T 28《城(cheng)鎮(zhen)供(gong)熱管(guan)(guan)網工程(cheng)施(shi)工及(ji)驗收規范(fan)》適(shi)用于采用明挖、暗(an)挖、頂管(guan)(guan)、定向鉆等施(shi)工工藝,并符合下列參數的城(cheng)鎮(zhen)供(gong)熱管(guan)(guan)網工程(cheng)的施(shi)工及(ji)驗收:
工作壓(ya)力小于(yu)(yu)(yu)或等(deng)(deng)于(yu)(yu)(yu)1.6MPa,介質(zhi)溫度(du)小于(yu)(yu)(yu)或等(deng)(deng)于(yu)(yu)(yu)350℃的(de)蒸汽管(guan)網;工作壓(ya)力小于(yu)(yu)(yu)或等(deng)(deng)于(yu)(yu)(yu)2.5MPa,介質(zhi)溫度(du)小于(yu)(yu)(yu)或等(deng)(deng)于(yu)(yu)(yu)200℃的(de)熱(re)水(shui)管(guan)網。

