GB 51309-2018 第5.2.2条
| **** | Luminaires shall be installed securely and reliably; **strictly prohibited** to use flexible suspension chains or suspension wires for installation in hotel guest rooms, corridors and other areas. |
| **** | Luminaires shall be installed securely and reliably; **strictly prohibited** to use flexible suspension chains or suspension wires for installation in hotel guest rooms, corridors and other areas. |
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