Electrical line installers and repairers install, repair and join electrical transmission and supply cables and related equipment.
(a)   Tasks include -
installing and repairing overhead and underground electrical power and electrical traction lines;
making joints in overhead and underground cables;
adhering to safety practices and procedures, such as checking equipment regularly and erecting barriers around work areas;
opening switches or attaching grounding devices to remove electrical hazards from disturbed or fallen lines or to facilitate repairs;
climbing poles or using truck-mounted buckets to access equipment;
identifying defective sectionalizing devices, circuit breakers, fuses, voltage regulators, transformers, switches, relays, or wiring, using wiring diagrams and electrical-testing instruments.