SWITEC was contracted by SIEMENS to perform the 25/15/5 year inspection of the 145kV GIS for the City of Cape Town for the Cape Town metropolitan area. This major contract, with almost 80 bays, includes the inspection of the circuit breaker, the hydraulic system/spring mechanisms, isolators and earth switches as well as the refurbishment of 10 incoming/outgoing lines with air insulated bushings.