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GB 50034-2013 第7.3.6条 Architectural Lighting Design Standard

Lighting power distribution and control电气工程

GB 50034-2013 第7.3.6条

| **** | Emergency lighting shall be provided with a dedicated distribution circuit and supplied via automatic dual-power transfer; the transfer time shall comply with code requirements (standby lighting ≤5s, evacuation lighting ≤5s). |

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