Home › Standards › GB 51251-2017 › 第9.3.3条

GB 51251-2017 第9.3.3条 Technical Standard for Smoke Control and Exhaust Systems in Buildings

Construction and Commissioning消防工程

GB 51251-2017 第9.3.3条

| **** | Smoke exhaust fans shall be installed in a dedicated machine room, and the machine room shall be separated from other areas by partition walls with a fire resistance rating of not less than 2.00 h and floor slabs with a fire resistance rating of not less than 1.50 h. Smoke exhaust fan rooms on the hotel roof or equipment floor shall meet this requirement. |

Other clauses of this standard

GB 51251-2017 第1.0.2条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第1.0.3条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第1.0.4条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第1.0.5条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第2.1.1条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第2.1.2条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第2.1.3条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第2.1.4条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第2.1.5条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第2.1.6条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第2.1.7条Technical Standard for Smoke Control and Exhaust Systems in…
GB 51251-2017 第2.1.8条Technical Standard for Smoke Control and Exhaust Systems in…

Still have a specific question? Ask a MEP expert

12 hotel MEP experts online, answers cite standard clauses you can verify.

Ask free →

Engineering reference only — verify against project conditions and the latest codes.