If you are planning or designing a project within the City of Oak Ridge, we offer standard drawings to help you build a quality project on schedule. Below are drawings useful in preparing bid documents and estimates. If you need assistance in submitting site plans that require Planning Commission approval, we can assist you with the electrical design. Contact the Engineering Division to discuss your project’s needs.
Right-of-Way-Inquiry:
Requests for Electrical System Data:  Contact Engineering if data specific to CORED electrical infrastructure is desired for a particular site. Engineering can provide info on existing transformers that includes size, connection, and oil content.
We do not provide a specific impedance at a transformer location for the purpose of sizing customer equipment or performing arc flash analysis. Our transformers are subject to being changed out at any time. For this reason, we refer those who desire impedance data to the IEEE Red Book and suggest using a value within the range in the standard.  CORED transformers fall within the range of the IEEE Red Book for any given size.
Additionally, those desiring driving point impedance on the primary side of the transformer should assume an infinite source. Our system configuration is subject to change frequently. Our power provider, TVA, also has the ability to change the configuration of their system. Engineers should use their experience and best practices in determining conservative values for expected short circuit conditions on the customer’s side of the transformer.
Engineering will provide the location of existing electrical infrastructure on a particular site to professional architects, engineers, and surveyors. In the interest of Homeland Security, we do not provide wholesale access to GIS data detailing location of infrastructure throughout the system.
- 4 Point Multipoint Junction Mounting Within Vaults – CORED Standard 516
- 9-0-1 Form
- Concrete Encasement Ducts – CORED Standard 611
- Contact Numbers – CORED Standard 328
- Development Policies Resolution 5-57-05
- Fees: Connect, Reconnect, Miscellaneous
- Easement Widths – CORED Standard 329
- Ground Connector: 1/0 to 1/0
- Ground Connector: Ground Rod to 1/0
- Ground Rod
- Grounding Manholes, Vaults, Sector Sleeves, and Pedestals – CORED Standard 514
- Guard Post Details – CORED Standard 660
- Inspection Sheet: Underground Service
- Large Vault (for 350 MCM cu)
- Loop Feed Design – CORED Standard 511A
- Manhole
- Metering Standards
- New Construction & ROW Clearing Guide – CORED Standard 651
- Pedestal, medium (41 x 36 at base)
- Pedestal, small (17 x 30 x 18)
- Phasing – Style A – Rotated Phases – CORED Standard 512A
- Phasing – Style B – Grouped Phases – CORED Standard 512B
- Preliminary Plat Checklist
- Primary Conduit Installation – CORED Standard 513
- Primary Service Extension – CORED Standard 630
- PUD Preliminary Master Plan Checklist
- PUD Final Master Plan Checklist
- Pull Vault Installation – CORED Standard 515A
- Radial Feed Design – CORED Standard 511B
- Re-subdivisions, Final Plats, & Plats of Correction Checklist
- Relative Utility Placement – Residential Streets – Electrical Details – CORED Standard 332
- Rules and Regulations
- Sector Sleeve
- Sector Vault for 4 Point Multipoint Junctions – CORED Standard 607A
- Service-Drop Conductor Clearances
- Site Plan Checklist
- Siting Pad-Mounted Transformers With Walls – CORED Standard 330
- Sketch Plat Checklist
- Small Secondary Pedestal Installation – CORED Standard 517
- Special Sector Sleeve – Nordic 325
- Special Sector Vault for 5 & 6 Point Multipoint Junctions – CORED Standard 607B
- Standard Concrete Sidewalk – Electrical Details – CORED Standard 331
- Standard Pad Mounted Transformer Pad – Three Phase – CORED Standard 710
- Standard Pad Mounted Transformer Pad – Single Phase – CORED Standard 720
- Standard Pad Mounted Transformer Pad – Special Three Phase – CORED Standard 730
- Street Light Guidelines
- Temporary Service Requirements
- TND Final Master Plan Checklist
- TND Master Plan Checklist
- Transformer Vault Installation – CORED Standard 515B
- Trenches for Direct Buried Ducts, and Joint Use Ditching Specifications – CORED Standard 610
- Typical Service Connection Locations – Electrical Details – CORED Standard 333
- Urban/Residential ROW Clearance Guide – CORED Standard 650
- Vault (HL-45) (HL-48) (HL-48M)
- Warning Tape
