GB 51251-2017 第5.2.4条
| **** | **Signal feedback**: The open/close status signals of equipment such as supply air outlets, smoke exhaust outlets, smoke exhaust windows, smoke exhaust valves, and fans shall be fed back to the fire control room. |
| **** | **Signal feedback**: The open/close status signals of equipment such as supply air outlets, smoke exhaust outlets, smoke exhaust windows, smoke exhaust valves, and fans shall be fed back to the fire control room. |
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