GB 50261-2017 第5.2.3条
| **** | When the sprinkler deflector is higher than the bottom of a nearby beam, or the bottom of obstructions such as air ducts, pipe racks, or cable trays wider than 1.2 m, the distance between the sprinkler and the obstruction shall comply with Annex G of the standard (commonly seen in hotel corridors, lobbies, and similar areas). |