Insulation protection device for electrical wiring of thermal power plant

The utility model discloses a thermal power plant electrical wiring insulation protection device which comprises an outer cylinder, an inner cylinder is arranged in an inner cavity of the outer cylinder, a supporting rod is fixedly connected to the bottom of an inner cavity of the inner cylinder, an arc-shaped placing plate is fixedly connected to the top of the supporting rod, and a spring is fixedly connected to the top of the inner cavity of the inner cylinder. According to the utility model, the arc-shaped placing plate, the spring, the arc-shaped clamping plate, the pull rod, the through hole, the through groove, the connecting pipe, the lower arc-shaped limiting plate, the threaded rod, the upper arc-shaped limiting plate, the limiting disc, the driving connecting plate, the limiting block, the bolt, the limiting groove and the driven connecting plate are matched for use, so that the problems that the existing insulation protection device is poor in stability; the problems that the protection effect of