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GB 51309-2018 第4.5.5条 Technical Standard for Fire Emergency Lighting and Evacuation Indication Systems

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GB 51309-2018 第4.5.5条

| **** | The ingress protection (IP) rating of luminaires shall comply with the design requirements. In damp areas of the hotel (such as bathrooms and kitchens), the IP rating of luminaires shall not be lower than IP65. |

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