Make tools, fittings, and small metal pieces used in other products.
Inspects and tests electric current-converting and distribution equipment in attended or unattended substations to verify operating efficiency and accuracy of equipment: Examines transformers, oil switches, fuses, lighting arresters, voltage regulators, and related equipment, and tests circuitry, using standard electrical testing apparatus, to verify that new equipment is correctly installed and wired. Inspects automatic supervisory-controls in unattended stations to verify their performance of supervisory functions, according to specifications and cumulative station-operation records. Performs acceptance and performance tests under direction of engineering personnel to evaluate performance of new and operating equipment. Calculates average and peak load conditions of station from electric recording instrument data and compiles report of load conditions and test results for equipment performance evaluation and system planning purposes. Repairs or replaces blown fuses and defective switches or wires. Opens switches to deenergize station circuitry and distribution lines preparatory to repairs by maintenance workers or linecrews. May control operation of attended station in absence of regular operator. May patrol power lines [ELECTRIC POWER LINE EXAMINER]. When inspecting unattended substations, may be designated Substation Inspector, Automatic.