The application relates to the technical field of power
distribution networks, in particular to a method for carrying out live disconnection of a substation lead by adopting an insulating hard ladder, which comprises an insulating hard ladder connecting device and a tipping bucket
pulley device, the insulating hard ladder connecting device comprises an insulating hard ladder body, a connecting rod and a self-locking hook, and the specific method is as follows: the insulating
rope of the
pulley II is connected to the self-locking hook of the tipping bucket
pulley device, the spring I is stretched by the self-gravity of the insulating hard ladder body or the insulating
rope is pulled downwards to drive the turnover shaft to move upwards or downwards, and the turnover shaft drives the
brake pad to be locked with the wire when the tipping bucket pulley does not move. The application can avoid the problem that the
metal arm of the insulating boom
truck is insufficient for the safety distance of the live body when the insulating boom
truck is directly used to send the operating personnel into the power
plant; the insulating hard ladder is prone to overturning during installation, and the
operation safety is low; four cable wind ropes of the control personnel can be reduced, the operating personnel configuration can be reduced, the operation range can be reduced, time can be saved, the work efficiency can be improved, and the operation risk can be reduced.