Customer Information
- My Account eCare
- Pay your bill online via credit card
- Electricity Rates
- Municipal Water Rates
- Payment Options
- Conditions of Service
- Service Agreement
- Reading Your Meter
- Submit Meter Reading Online
- Fun Stuff for Kids
- Low Volume Consumer or Designated Consumer - Declaration Form for Multi-Unit Premises
- Request a Locate
News & Announcements
Power Conservation Programs
Energy Saving Tips
- Managing Your Electricity Use
- Ontario Gov't Energy Conservation Tips
- Shopping for Electricity
- Shopping for Electric Appliances
- Electrical Heating Tips
- Home Energy Audit
Developer, Consultant and Contractor Information
St. Thomas Energy Inc.
Engineering Information for Developers, Consultants and Contractors
Page Contents (hide)
Industrial and Commercial Installations
For industrial commercial installations please download the
Application for Electrical Service and fax the completed form back to St. Thomas Energy Inc. All the installation requirements and standards are summarized in the Transformer and Metering Installation Specification. Please review it carefully. If you have any question call 519 631-5550 ext 247.
Pad Mount Transformer Specifications
Pole Mount Transformer Specification
Padmount Transformer Drawings
- 11-120 3PH Transformer 150 to 500KVA Base
- 11-125 3PH Transformer 750 to 2500KVA Base
- 9-30 Pad-mount Transformer Installation Detail
- 9-31 Pad-mount Installation Schematic (less than 1000A service)
- 9-32 Pad-mount Installation Schematic (1000A & higher sum CT)
- 9-33 Pad-mount Installation Schematic (1000A & higher neutral CT)
- 9-35 Pad-mount Transformer Base Installation
- 9-40 Pad-mount Transformer Base Installation
- 9-70 Pad-mount Transformer Underground Service up to 3000 Amps
Polemount Transformer Drawings
- 9-60 Polemount Transformer Overhead Services up to 400 Amps
- 9-65 Polemount Transformer Underground Service up to 400 Amps
Service Entrance Fault Current Calculation Template
Subdivision Developments
St. Thomas Energy’s procedures and requirements for subdivision developments are summarizes in the Subdivision Installation Procedure Summary which can be downloaded along with the Underground Distribution Specification.
