Hangers Techline Mfg

Spacing of seismic-resistant cable tray hangers

For rigid cable trays, it is established that the seismic supports should be spaced no more than 12 meters apart. Dead load includes the weight of the cable trays, their supports and the cables. A number of shake table tests on portions of cable tray and conduit systems confirm these observations from past earthquakes and demonstrate that typical configurations perform well under repeated high- level seismic input test spectra on the order of 1. There are only a. In regions prone to seismic activity, ensuring that your cable tray system is capable of withstanding such events is vital. For over 60 years, the mechanical, electrical, and fire protection trades have relied on TOLCO seismic bracing solutions. Clause 522-08-04 Where conductors or cables are not supported. 1170.