Conflict between cable tray supports and seismic bracing
Typical supports for piping, trays, and other equipment are designed for the gravity, or vertical, loads but do not take into account the horizontal loading caused by earthquakes. Earthquakes and seismic events can cause severe damage to electrical infrastructure, including cable trays, leading to outages and even safety hazards. Cable tray and conduit systems have consistently performed well at conventional power and industrial facilities subjected to past strong-motion earthquakes larger than eastern U. For over 60 years, the mechanical, electrical, and fire protection trades have relied on TOLCO seismic bracing solutions. The cable tray system represented a large distributed mass that was supported between the top of the equipment cabinets and the roof framing.
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