US Patent 10468159 Power cable with laminated steel and polymer armor

A power cable for an electrical submersible well pump has at least one insulated conductor and an armor strip wrapped in helical turns around the conductor. The armor strip has a steel layer and a first polymer layer bonded to a first side of the steel layer. Each of the helical turns of the armor strip overlaps with another of the helical turns, causing the first polymer layer of each of the helical turns to form a seal with of a next one of the helical turns. A second polymer layer may be bonded to a second side of the steel layer. The second polymer layer of each of the helical turns overlies in sealing contact with the first polymer layer of the next one of the helical turns.