Seismic resistant multi-transformer cluster bracket with adjustable diagonal braces

摘要

A seismic resistant cluster bracket for mounting to an electrical power-line pole and supporting power distribution transformers includes a rectangular support frame which has upper and lower horizontal cross beams secured to left, right, and center vertical strong-back struts. Pole-mount brackets protruding rearward from the center strong-back are provided with bolt holes for receiving bolts to attach the support frame to a power pole. Top and bottom safety mount brackets, each having vertical stabilizer ribs for engaging indentations of a rear transformer bracket are attached to the front of each strong-back. A pair of adjustable extension length diagonal braces spaced equal distances laterally outwards from the center strong-back are pivotal mounted to the rear side of the support frame, extendable to adjustable lengths and boltable to a power pole to secure the frame against movements relative to the power pole as a result of static weight loading or seismic vibrations.