Low-voltage live operation protecting shield

Abstract

The invention relates to a protecting device, and particularly to a low-voltage live operation protecting shield. The low-voltage live operation protecting shield comprises the components of: a baffle board with fixing pawls, flanges, hanging rods, and rotatable pawls with locking rings. The rotatable pawls are mounted at the lower end of the baffle board through the flanges. The middle part of the baffle board is provided with a handle. The baffle board is provided with hooks in parallel. One end of each hanging rod is arranged on the locking ring, and the other end is matched with and connected with the hook. According to the low-voltage live operation protecting shield, insulating fixing pawls are adopted; when a live upper bus is detached, the fixing pawls can fix the upper bus; and even the upper bus loosens, a live line is bound to the insulating baffle board, thereby effectively preventing an electric shock risk.

Description

technical field [0001] The invention relates to a protective device, in particular to a protective cover for low-voltage live working. Background technique [0002] The low-voltage alternating current in the high-voltage substation is the basic power supply for important loads such as circuit breaker operation and lighting heating. The Chinese patent discloses "a low-voltage switch retractable protective cover" (publication number: 202084811U), which is only suitable for protection against electric shock during low-voltage maintenance, but cannot effectively protect when replacing the switch. [0003] At present, the power supply mode in the substation is radiant power supply of the power box, but all the power switches in one power box are connected to the same busbar. Due to high temperature in summer, loose wiring and heat generation, or power switch aging and heat, the switch is burned, and the power supply should be replaced in time. switch, but other loads in the box ...

AI Technical Summary

Problems solved by technology

The Chinese patent discloses "a low-voltage switch retractable protective cover" (publication number: 202084811U), which is only suitable for protection against electric shock during low-voltage maintenance, but cannot effectively protect when replacing the switch

[0003] At present, the power supply mode in the substation is radiant power supply of the power box, but all the power switches in one power box are connected to the same busbar. Due to high temperature in summer, loose wiring and heat generation, or power switch aging and heat, the switch is burned, and the power supply should be replaced in time. switch, but other loads in the box cannot be powered off. The power line connected to the busbar is always charged. When replacing, two operators must cooperate carefully. One person is responsible for removing the wire and the other is responsible for taking the wire. Hold the wires in a narrow space, and the wires can’t accidentally touch each other, and the operator can’t touch the box. Experienced operators must be sent to do this work, which is very difficult and has certain dangers.

Images