Bolt fastening assembly for copper plate of power distribution cabinet

The utility model discloses a power distribution cabinet copper plate bolt fastening assembly which comprises a bolt limiting piece which is connected with a bolt head of a bolt and limits rotation of the bolt head, and the bolt limiting piece can stretch into the position between a main copper plate and a power distribution cabinet. And the nut fastener is connected with the fastening nut and drives the fastening nut to rotate. The bolt limiting piece comprises a bolt sleeve for annularly sleeving a bolt head of the bolt, and an L-shaped limiting rod extending to the outer side of the pup joint copper plate is arranged on the side wall of the bolt sleeve. The nut fastener comprises a nut sleeve arranged on the fastening nut in a sleeving mode and a driving rod arranged at the outer end of the nut sleeve. The bolt limiting piece of the fastening assembly can extend into a small gap between the rated main copper plate and the inner wall of the power distribution cabinet and can be smoothly connected with the b