Client: Oxford Properties Group
Location: Data Processing Centre - Vancouver, BC
Project: LV & HV Maintenance Package and Ongoing Equipment Modernization since 2005 - Entire Facility

• Infrared scanning: Facility-wide infrared thermography services are provided by us as a way to effectively predict issues within the power distribution system. Preventative maintenance is executed as needed when heating problems are found.
• LV maintenance: We provide the following annual, biennial and triennial maintenance services for over eighty in-service and spare 600V air circuit breakers:

1. Primary and/or secondary current injection to ensure protective relay and trip circuit operation.
2. Visual inspection.
3. Cleaning, degreasing and lubrication.
4. Electrical and mechanical functionality - open/close/trip operation and auxiliary contact operation.
5. Contact resistance and insulation resistance testing.

• HV maintenance: The main 12.47KV electrical vault is serviced every three years, in accordance to WorkSafeBC and BC Hydro requirements for dual radial vaults. We perform cleaning, maintenance and testing of the following equipment:

1. BC Hydro dual radial switches and downstream distribution switches.
2. Main and feeder oil-filled circuit breakers.
3. Overcurrent protective relays.
4. Main transformers and transformer temperature devices.

• Equipment modernization: We provide ongoing recommendations for device and equipment replacement as needed, and provide installation services as desired by the client. The following is a selection of the work that we have done at their request.

1. Retrofitting of 600V air circuit breakers throughout the facility with Utility Relay Company AC-PRO solid-state trip units, including new current transformers, shunt-trip coils and all associated control wiring.
2. Replacement of overcurrent protective relays in the main 12.47KV electrical vault.
3. Installation of power meters and communications wiring in the main low voltage distribution switchboard.