GB 50974-2014 第4.3.1条
| **** | **Conditions for setting up a fire water tank**. When the municipal water supply network cannot meet the hotel's fire water demand (e.g., only a single supply line, insufficient water volume, or unstable pressure), a fire water tank must be provided. The fire duration for hotels is typically calculated as 2 hours (Class I high-rise) or 1 hour (Class II high-rise). |