Installation of seismic bracing purpose: After the building water supply and drainage, heating, ventilation, air conditioning, gas, heat, electricity, communication, fire and other mechanical and electrical engineering facilities encountered an earthquake, the effect of mitigating earthquake damage, preventing secondary disasters, avoiding casualties and reducing economic losses.

According to the “building mechanical and electrical engineering seismic design code” GB50981-2014 Article 3.1.6 states that the scope of application of seismic bracing is as follows.

1,Suspend the equipment with gravity greater than 1.8KN in the pipeline;

2,Life water supply and fire-fighting piping system above DN65;

3, rectangular cross-sectional area greater than or equal to 0.38m² and circular diameter greater than or equal to 0.7m duct system;

4, for the inner diameter greater than or equal to 60mm electrical distribution pipes and gravity greater than or equal to 150N/m cable ladder racks, cable bridges, bus ducts;

5, the scope of water supply and drainage design: ≥ DN65 water supply, hot water, fire, pressure drainage pipes or other equipment with gravity more than 1.8KN;

6, the scope of electrical design: diameter ≥ DN60 electrical piping, gravity ≥ 150N / m cable tray, cable trough box and bus duct.

7, the rest of the water supply and drainage, HVAC, electrical systems according to the specification requirements to set up seismic support hangers.0.