Stromag Engineers Ltd. Offers Multipole Enclosed Conductor Bar System. Stromag Engineers Ltd. Also manufactures Single pole individually insulated conductors, single pole PVC housing, tepeofrm copper conductor, multi conductor, pvc hosing Multipole Enclosed Conductor Bar System is an enclosed conductor system. Multipole Enclosed Conductor Bar System has a moving current collector to feed mobile equipments such as cranes, hoists conveyors, textiles & computerized ware houses. The Multipole Enclosed Conductor Bar System has a current rating of 40-140 Amps.