GB 50243-2016 第6.3.1条
| **** | The spacing of duct supports and hangers shall comply with the requirements: for horizontal installation, when the side length is ≤400 mm, the spacing shall be ≤4 m; when the side length is >400 mm, the spacing shall be ≤3 m; for vertical installation, the spacing shall be ≤4 m, and each vertical riser shall have ≥2 fixing points. **(In hotel ceilings, pipelines are densely packed; this clause ensures duct stability and prevents deformation and noise.)** |