Specifications include, but are not limited to: Low Voltage (< 600 volts): The firm shall self-perform work for low voltage, defined as six hundred (600) volts or less. Work in this category is comprised of the following: • 480v, 277v, 240v, 208v, 120v electrical systems in single & three phase.;; • wet & dry type transformers in all voltages, phases, & configurations.; • feeder & branch circuits.; • EMT, PVC, Rigid Metal, IMC, Flexible Metal, Seal-tight, & Wiremold conduit systems.; • lighting systems to include fluorescent, HID, incandescent, LED, and dimming control systems.; • all types of lighting fixtures installed in locations such as bridge towers, support cables, and inspection catwalks.; • electrical feeder panels, distribution panels, branch circuit panels, panel boards, switch boards & switchgear.; • motors, motor starters, motor control centers, & motor control drive equipment.; • busways, bus duct, & related bus distribution equipment.; • emergency power, automatic transfer switches, and UPS.; • overhead feeders, temporary power, & wiring; • splice boxes, junction boxes, pull boxes, & hand boxes. ; High Voltage (> 600 volts): High Voltage work, defined as more than six hundred (600) volts, shall be performed by a certified high voltage technician. Work in this category is comprised of the following: • 5kv through 33kv systems & equipment.; • high voltage overhead & underground cables, cable splices & terminations, and fault locating, repair, and testing.; • high voltage switches, tie-switches, switchgear, breakers, fault & overcurrent relays, and associated devices including G&W gas insulated switches.; • high voltage transformers, transformer oils, transformer cooling devices, transformer gauges & monitoring devices, transformer seals & bushings, and terminating devices.; • high voltage conduits & duct-banks.; • high voltage sensors, meters, monitoring devices, current transformers, relays, & controls.