Seismic Qualification of Busbar Trunking System

Earthquake results in multifrequency vibratory ground motion at the earth’s surface, having both horizontal and vertical components. Three dimensional random earthquake vibration induces stress in the electricale quipment, components, and structures causing massive damage. Dynamic loading due to earthquake should be taken into consideration while designing electrical system. This will ensure uninterrupted power supply and safety, during and after the event of earthquake. Busbar trunking systems are utilized in high rise buildings, hospitals and industrial applications to distribute power to electrical loads. Sandwich busbartrunking systems are alternative to conventional power cabling. Seismic behaviour of Busbartrunking system depends on support, support structure, anchoring etc. Seismic qualification of Sandwich Busbartrunking system is presented in this paper.