GB 50067-2014 第9.0.5条
| **** | Emergency lighting illuminance on evacuation routes shall not be less than 0.5 lx, and the spacing of evacuation direction signs shall not exceed 20 m. |
| **** | Emergency lighting illuminance on evacuation routes shall not be less than 0.5 lx, and the spacing of evacuation direction signs shall not exceed 20 m. |
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