Fabricate, assemble, install, and repair sheet metal products and equipment, such as ducts, control boxes, drainpipes, and furnace casings. Work may involve any of the following

setting up and operating fabricating machines to cut, bend, and straighten sheet metal; shaping metal... [+] More

Fabricate, assemble, install, and repair sheet metal products and equipment, such as ducts, control boxes, drainpipes, and furnace casings. Work may involve any of the following

setting up and operating fabricating machines to cut, bend, and straighten sheet metal; shaping metal over anvils, blocks, or forms using hammer; operating soldering and welding equipment to join sheet metal parts; inspecting, assembling, and smoothing seams and joints of burred surfaces. Include sheet metal duct installers who install prefabricated sheet metal ducts used for heating, air conditioning, or other purposes. [-] Less

Installs, connects, tests, and sustains electrical systems for a variety of purposes, including climate control, security, and communications. Figures layout, installs, and repairs wiring, electrical fixtures, apparatus, and control equipment, such as switches, relays, and circuit-breaker panels, fastening in place... [+] More

Installs, connects, tests, and sustains electrical systems for a variety of purposes, including climate control, security, and communications. Figures layout, installs, and repairs wiring, electrical fixtures, apparatus, and control equipment, such as switches, relays, and circuit-breaker panels, fastening in place with screws or bolts, using hand tools and power tools.

Plans new or modified installations to minimize waste of materials, provide access for future maintenance, and avoid unsightly, hazardous, and unreliable wiring, consistent with specifications and local electrical codes. Prepares sketches showing location of wiring and equipment, or follows diagrams or blueprints, ensuring that concealed wiring is installed before completion of future walls, ceilings, and flooring. Measures, cuts, bends, threads, assembles, and installs electrical conduit, using tools, such as hacksaw, pipe threader, and conduit bender. Pulls wiring through conduit, assisted by electrician helper. Splices wires by stripping insulation from terminal leads, using knife or pliers, twisting or soldering wires together, and applying tape or terminal caps. Connects wiring to lighting fixtures and power equipment, using hand tools. Connects power cables to equipment, such as electric range or motor, and installs grounding leads. Tests continuity of circuit to ensure electrical compatibility and safety of components, using testing instruments, such as ohmmeter, battery and buzzer, and oscilloscope. Observes functioning of installed equipment or system to detect hazards and need for adjustments, relocation, or replacement. May repair faulty equipment or systems. May be required to hold license. May cut and weld steel structural members, using flame-cutting and welding equipment. [-] Less