Direct-current wall-through bushing and spring compensation device thereof

The invention discloses a spring compensation device. The device comprises a spring seat, a spring and a pressure bearing plate; the spring seat is arranged in an outer sleeve of a direct-current wall-through bushing and is connected with the outer sleeve; the spring is located in the spring seat, and one end of the spring abuts against the spring seat; and the pressure bearing plate is connected to a conductor in a sleeving manner, and the axial elastic force of the other end of the spring acts on the pressure bearing plate. According to the direct-current wall-through bushing and the spring compensation device thereof of the invention, the pressure bearing plate provides downward compression force for the spring, and the spring provides upward axial thrust for the pressure bearing plate. The upward axial thrust of the spring is applied to the pressure bearing plate, and the pressure bearing plate is connected with the conductor, so that the upward axial thrust of the spring is applied to the conductor. Due