Bypass cable access installation auxiliary tool

The bypass cable access installation auxiliary tool comprises a connecting piece, and an isolating switch is connected with a cargo boom through the connecting piece; a bypass cable; the fastening part comprises a fixing pipe, a through hole is reserved in the fixing pipe, a shell is fixed to the fixing pipe, a lifting bottom plate located in the lifting groove is arranged on the bottom face of an inner cavity of the shell, and the lifting path of the lifting bottom plate is perpendicular to the reciprocating sliding path of the bypass cable; the fixing part is arranged on the lower plate surface of the lifting bottom plate so as to allow the length of the cable to be adjusted by pressing or releasing the bypass cable; the lifting plate is formed by extending upwards along the top surface of the lifting bottom plate, and the vertical lifting action of the lifting plate is driven by the swinging action of the breaking rod. The cable fixing device has the advantages of being firm in structure, easy to use and h