Electrical device e.g. winch, driving/recharging device, has pole including contact unit at its extremities, where contact unit co-operates with contactors of electrical device to transmit energy from electrical source

摘要

The device has a pole (3) with an electrical energy source (2) e.g. re-chargeable accumulator, and a contact unit (4) at its respective extremities. The contact unit co-operates with contactors of an electrical device e.g. winch, to transmit an electrical energy from the source via wires contained in the pole. Changes over switches (6) are positioned adjacent to the source for reversing the polarity of source current.