Powered winches are the construction tools of erecting electric circuits of high pressure electric transmission in the sky and laying eletrical cables underground. They can complete the tasks of heavy-lifting and dragging such as erecting the wire. Testified by the experiments and practical uses, they have reasonable structure, small volume, light weight, strong power, nimble operation and convenient transporting. Based on so many advantages, this two models of Powered winch are popular with the electric workers.
