Construction, repair and testing for maintenance purposes of electrical power, instrumentation and control equipment comprised of low and medium voltage metal clad and metal enclosed switchgear including motor control centers, motor starters, circuit breakers, disconnect switches, both fused and unfused silicon controlled rectifier (SCR) speed drives, drilling rig top drives, generator controls, drilling rig control systems, industrial shutdown systems, and traction motors used in the oil, gas and chemical production, distribution and manufacturing industries, the pulp and paper industries, and in connection with gas and oil drilling rigs and electrical power co-generation and other industrial and commercial electrical power, instrumentation and control systems
Building Construction and Repair