1. The indoor water supply, hot water and fire-fighting pipelines that need to be fortified are horizontal pipelines with a diameter greater than or equal to DN65.

2. If the straight-line length of water supply and drainage risers of high-rise buildings with fortification intensity of 8 and 9 exceeds 50cm, anti vibration measures should be taken; When the straight-line length is greater than 100m, anti vibration measures should be taken.

3. Seismic supports and hangers can be used for air duct systems with rectangular cross-sectional area greater than or equal to 0.38m2 and circular diameter greater than or equal to 0.7m.

4. Anti seismic measures shall be taken for all smoke control and emergency ventilation ducts.

5. For electrical piping with an inner diameter greater than or equal to 60mm, seismic fortification shall be carried out.

6. Cable trays, cable trunking, and bus ducts with a gravity greater than or equal to 150n/m shall be provided with seismic fortification.