Plan layout and installation of electrical wiring, equipment and fixtures, based on job specifications and local codes.Test electrical systems and continuity of circuits in electrical wiring, equipment, and fixtures, using testing devices such as ohmmeters, voltmeters to ensure compatibility and safety of system.Assemble, install, test, and maintain electrical or electronic wiring, equipment, appliances, apparatus, and fixtures, using hand tools and power toolsConnect wires to circuit breakers, transformers, or other components andConstruct and fabricate parts, using hand tools and specifications.Work from ladders, scaffolds, and roofs to install, maintain or repair electrical wiring, equipment, and fixtures.Place conduit (pipes or tubing) inside designated partitions, walls, or other concealed areas, and pull insulated wires or cables through the conduit to complete circuits between boxes.