installation, maintenance, reconditioning, replacement, diagnostic evaluation, troubleshooting, operation, and repair of various electrical systems, as well as any related electrical work deemed necessary by the State Highway Administration. Electrical systems include, but are not limited to, electrical wiring, load studies, electrical service and distribution, ballasts, lamps, receptacles, outlets, conduits, junction boxes, electrical motors, fixtures, transformers, disconnect switches, transfer switches, 120 volts to 480 volts, single phase, three phase and any other electrical equipment as determined by the Administration. The Contractor must be able to perform the required electrical services from verbal instructions or written descriptions.