Is seismic support required for 200 cable trays?
2 Answers
It must be determined through measurement and calculation. Below is relevant information: For example: For strong current cable trays with a thickness of 1.5mm and a width of 400mm or more (cable trunking), seismic support is definitely required. Small cable trays containing large cables require separate calculations. Weak current: This article does not estimate the weight of related cables for weak current and fire alarm cable trays, so for the main trunk section of cable trays starting from the equipment room, those with a width of 500mm or more definitely require seismic support. Calculation: Considering the cost of seismic support and hangers, the detailed design and construction of seismic support projects in practice may not achieve very precise calculations. The selection of cable tray height and thickness will also affect the results, so specific matters require comprehensive consideration.
As an experienced auto repair shop owner, I've gained some insights in managing workshop equipment. For 200-size cable trays, seismic bracing is essential during installation, especially in earthquake-prone areas. Our shop has encountered similar issues where unsecured trays sway during tremors, potentially causing cables to fall and damage vehicles or tools. According to standards, seismic supports are mandatory when tray height exceeds 2 meters or when the weight is significant. The 200-width trays weigh approximately 25kg - while not the heaviest, we always install stabilizing brackets as a permanent safety measure. Prevention is far more cost-effective than post-incident repairs, so I recommend consulting professional technicians to evaluate installation points for durability. Remember, workshop safety comes first, with extra caution required in seismic risk zones.
