Profile: Walsh Electric Supply Co., Inc. specializes in electrical equipment. We deal with batteries, connectors, fasteners, cables, fans and lighting equipment. Our Ultra HS™ steel core transmission cables contains the same density as standard steel used as core wire, but has up to 35% higher tensile strength with no weight penalty. The Royal® bus drop cable is resistant to oils, lubricants, acids, alkalis, ozone, water and abrasion. It is rated for use in wet or dry locations.