Abstract:Due to the poor condition of the ground in the substation, when insulated ladder is used for maintenance and repair, the insulation ladder is prone to slip and causes personal injury, and there are safety hazards . study on the design of an adjustable insulation ladder and insulation ladder anti-skid placing rack.One side of the insulating ladder model by the upper and lower parts of the moveable ladder and foot ladder are connected by a hinge device to adjust the location of the ladder foot height, the problem of the tilt of insulation ladder in uneven pavement is solved. The insulation ladder antiskid placing rack is mainly composed of an antiskid pedal, hinge, hinge board and connecting rod. the antiskid pedal can solve the problem that the insulated platform is not resistant skid, and the insulation ladder is difficult to separate from the slot. The antiskid pedals are connected by hinge devices, and can be rotated to regulate the antiskid pedals and connecting rods,it also solves the problem that the existing climbing platform can not adapt to the uneven road surface. The new adjustable insulation ladder and insulation ladder rack can be folded, easy to carry, and fitted with wheels and rails, convenient to move, development and application of the insulating ladder and insulating ladder rack in the poor road conditions can eliminate the personal security risks in operation and ensure the safety of workers.