PRECorp is an RUS borrower and constructs its facilities in accordance with RUS requirements. PRECorp has modified some of its internal construction standards to accommodate avian safety, to more clearly designate units and assemblies, or to utilize unique or specific design constraints. The construction assembly drawings and standards listed here supplement RUS Bulletins and are intended for line design and construction professionals who are familiar with RUS construction standards and assemblies. Please consult RUS Bulletins 1728F-803, 1728F-806, or similar for more background information; or contact PRECorp Engineering at extension x3524 for detailed information.
1728F-803 - Specifications and Drawings for 24.9/14.4kV Line Construction, December 1998
1728F-806 - Specifications and Drawings for Underground Electric Distribution, June 2000
1728F-806 - Specifications and Drawings for Underground Electric Distribution, October 2018
| Standard | Revision Date | Description |
| PRE-CNS-001 | 8/24/2011 | Tying Guide for Underground Risers |
| PRE-CNS-002 | 9/9/2014 | Pole Setting and Soil Probe Guidelines |
| PRE-STD-001 | 10/3/2016 | Distribution Staking Guidelines |
| Tangent Structures | ||
| Standard | Revision Date | Description |
| VA1.1R | 6/21/2011 | Single Phase Tangent Single Support |
| VA1.1RG | 6/16/2011 | Guarded Single Phase Tangent Sing Support |
| VA2.0R | 3/5/2008 | Single Phase Tangent Double Support |
| VA2.0RG | 10/31/2008 | Guarded Single Phase Tangent Double Support |
| Angle Structures | ||
| Standard | Revision Date | Description |
| VA2.1R | 2/5/2013 | Single Phase Double Primary Support |
| VA2.1RG | 2/5/2013 | Perch Deterred Single Phase Primary Support |
| VA3.1R | 3/21/2008 | Single Phase Suspension Angle |
| VA3.1RG | 11/24/2008 | Guarded Single Phase Suspension Angle |
| Dead Ends | ||
| Standard | Revision Date | Description |
| VA4.1R | 9/14/2009 | Single Phase Deadend Angle |
| VA4.1RG | 4/6/2009 | Guarded Single Phase Deadend Angle |
| VA5.1R | 9/14/2009 | Single Phase Deadend |
| VA5.1RG | 9/15/2020 | Guarded Single Phase Deadend |
| VA5.2R | 2/5/2013 | Single Phase Deadend Tap |
| VA6.2R | 7/17/2017 | Single Phase Double Deadend |
| VA6.2RG | 7/17/2017 | Guarded Single Phase Double Deadend |
| VA6.22R | 6/26/2015 | Single phase double Deadend with Neutral on Crossarm |
| VA6.22RG | 9/15/2020 | Guarded Single Phase Double Deadend with Neutral on Crossarm |
| Tangent Structures | ||
| Standard | Revision Date | Description |
| VC1.11R | 6/21/2011 | Three Phase Tangent Single Support |
| VC1.11RG | 11/10/2008 | Guarded Three Phase Tangent Single Support |
| VC1.41R | 4/8/2011 | Three Phase Single Support w/ Neutral on Cross Arm |
| VC1.41RG | 2/19/2011 | Guarded Three Phase Single Support w/ Neutral on Cross Arm |
| VC2.20R | 6/21/2011 | Three Phase Tangent Double Support |
| VC2.20RG | 4/28/2011 | Guarded Three Phase Tangent Double Support |
| Angle Structures | ||
| Standard | Revision Date | Description |
| VC2.21R | 6/21/2011 | Three Phase Double Support |
| VC2.21RG | 1/20/2012 | Guarded Three Phase Double Support |
| VC2.51R | 5/5/2011 | Three Phase Double Support w/ Neutral on Cross Arm |
| VC2.51RG | 4/19/2011 | Guarded Three Phase Double Support w/ Neutral on Cross Arm |
| VC2.52R | 4/28/2011 | Three Phase Double Support |
| VC2.52RG | 4/28/2011 | Guarded Three Phase Double Support |
| VC3.1R | 3/16/2012 | Three Phase Suspension Angle |
| VC3.1RG | 9/15/2020 | Guarded Three Phase Suspension Angle |
| Dead Ends | ||
| Standard | Revision Date | Description |
| VC4.1R | 3/16/2012 | Three Phase Deadend Angle |
| VC4.1RG | 9/15/2020 | Guarded Three Phase Deadend Angle |
| VC5.1 | 3/26/2008 | Three Phase Vertical Deadend |
| VC5.1G | 11/5/2008 | Guarded Three Phase Vertical Deadend |
| VC5.31DR | 10/27/2009 | Three Phase Deadend on Crossarm Assembly, Small Conductor |
| VC5.31DRG | 9/15/2020 | Three Phase Deadend on Crossarm Assembly w/ Perch Guards, Small Conductor |
| VC6.1H | 3/8/2011 | 24.9/14.4kV Double Deadend on H-Structure Assembly |
| VC6.51R | 1/22/2013 | 24.9/14.4kV Three-Phase Double Deadend w/ Neutral on Crossarm |
| VC6.51RG | 9/15/2020 | Guarded Three-Phase Double Deadend w/ Neutral on Crossarm |
| VC6.52R | 1/22/2013 | 24.9/14.4kV Three-Phase Double Deadend w/ Neutral on Crossarm |
| VC6.52RG | 9/15/2020 | Guarded Three-Phase Double Deadend w/ Neutral on Crossarm |
| VC6.1HG | 3/7/2011 | Guarded Double Deadend on H-Structure Assembly |
| VC6.21R | 5/16/2011 | 3-Phase Double Deadend on Crossarm Assembly |
| VC6.21RG | 5/19/2011 | Guarded 3-Phase Double Deadend on Crossarm Assembly |
| Tangent Structures | ||
| Standard | Revision Date | Description |
| VC1.11LR | 11/7/2017 | Three Phase Tangent Single Support for Large Conductor |
| VC1.11LRG | 11/7/2017 | Guarded Three Phase Tangent Single Support for Large Conductor |
| VC2.20LR | 11/7/2017 | Three Phase Large Conductor Tangent Double Support |
| VC2.20LRG | 11/7/2017 | Guarded Three Phase Large Conductor Tangent Double Support |
| Angle Structures | ||
| Standard | Revision Date | Description |
| VC2.21LR | 11/7/2017 | Three Phase Large Conductor Double Support |
| VC2.21LRG | 11/7/2017 | Guarded Three Phase Large Conductor Double Support |
| VC2.51LR | 11/7/2017 | Three Phase Large Conductor Double Support w/ Neutral on Cross Arm |
| VC2.51LRG | 11/7/2017 | Large Construction 3-Phase Double Support, Neutral on Crossarm |
| VC2.52LR | 11/7/2017 | Three Phase Large Conductor Double Primary Support |
| VC2.52LRG | 11/7/2017 | Guarded Three Phase Large Conductor Double Support w/Neutral on Cross Arm |
| VC3.2LR | 3/16/2012 | Large Conductor Three Phase Suspension Angle |
| VC3.2LRG | 9/15/2020 | Guarded Large Conductor Three Phase Suspension Angle |
| Dead Ends | ||
| Standard | Revision Date | Description |
| VC4.2LR | 3/16/2012 | Large Conductor Three Phase Deadend Angle |
| VC4.2LR1 | 3/16/2012 | Large Conductor Three Phase Deadend Angle |
| VC4.2LRG | 3/16/2012 | Guarded Large Conductor Three Phase Deadend Angle |
| VC4.2LRG1 | 3/16/2012 | Guarded Large Conductor Three Phase Deadend Angle |
| VC5.71LR | 10/27/2009 | Three Phase Deadend on Crossarm Assembly, Large Conductor |
| VC5.71LRG | 11/5/2009 | Three Phase Deadend on Crossarm Assembly w/ Perch Guards, Large Conductor |
| VC6.21LR | 3/28/2011 | Large Construction 3-Phase Double Deadend on Crossarm Assembly |
| VC6.21LRG | 3/30/2011 | Guarded Large Construction 3-Phase Double Deadend on Crossarm Assembly |
| Tangent Structures | ||
| Standard | Revision Date | Description |
| VD1.81LR | 11/7/2017 | 24.9/14.4kV Double Circuit Tangent Large Conductor |
| VD1.81LRG | 9/15/2020 | Guarded Double Circuit Tangent Large Conductor |
| VD1_82LRG | 4/3/2012 | Guarded 24.9/14.4kV Double Circuit Tangent Large Conductor w Offset Neutral |
| VD2.90LR | 11/7/2017 | 24.9/14.4kV Double Circuit Double Support Tangent |
| VD2.90LRG | 9/15/2020 | Guarded Double Circuit Double Support Tangent |
| Angle Structures | ||
| Standard | Revision Date | Description |
| VD2.91LR | 11/7/2017 | 24.9/14.4kV Double Circuit Double Support Tangent |
| VD2.91LRG | 9/15/2020 | Guarded Double Circuit Double Support Tangent |
| Standard | Revision Date | Description |
| VC5.31HT | 3/26/2008 | Three Phase Takeoff form Deadend Crossarm Assembly, Small Conductor |
| VC5.31RT | 3/4/2011 | Three Phase Takeoff, Small Conductor |
| VC5.31RTG | 3/4/2011 | Three Phase Takeoff w/ Perch Guards, Small Conductor |
| VC5.71HT | 3/26/2008 | Three Phase Takeoff form Deadend Crossarm Assembly, Large Conductor |
| VC5.71LRT | 3/7/2011 | Three Phase Takeoff , Large Conductor |
| VC5.71LRTG | 3/4/2011 | Three Phase Takeoff w/ Perch Guards, Large Conductor |
| VC5.11GR | 6/13/2008 | Single Phase Tap of Three Phase Structure Guide |
| VA5.5G | 2/5/2013 | Single Phase Tap from Single Phase Structure Guide |
| VC5.1VT | 4/10/2008 | Three Phase Vertical Tap |
| VC5.2VT | 4/11/2008 | Large Conductor Three Phase Vertical Tap |
| Standard | Revision Date | Description |
| N6 | 3/19/2008 | Deadend Offset Neutral Assembly |
| Standard | Revision Date | Description |
| VC1.014 | 3/22/2011 | Horizontal Standoff Insulator |
| H1.1 | 3/7/2012 | Pole Protection – Ground Rod Type |
| H1.1A | 3/7/2012 | Pole Protection – Adding Ground Rod Type to Existing Ground |
| H3.1 | 3/22/2012 | Grounding Assembly – Ground Rod Type for Sectionalizing Airbrake Switch |
| P2.1 | 3/22/2012 | Pole Protection Assembly – Butt Plate Type |
| E4.0L | 3/19/2008 | Single Down Guy Pole Eye Plate Type |
| E4.1L E4.1LS | 7/10/2012 | Single Down Guy Pole Band Type |
| Standard | Revision Date | Description |
| VQ4.2R | 9/11/2018 | 24.9/14.4kV Primary Metering |
| VQ4.2M | 9/11/2018 | 24.9/14.4kV Primary Metering Retrofit |
| UQ3.3P2-25kV | 1/4/2021 | 25kV Three Phase Primary Pad-Mount Metering |
| UM8.7B-02 | 10/28/2008 | 2400/4160V 200A Primary Underground Meter |
| UM8.7B-02-06 | 10/28/2008 | 2400/4160V Primary Underground Meter Guide |
| UM8.7B-06 | 10/28/2008 | 2400/4160V 600A Primary Underground Meter |
| 120/240V | ||
| Standard | Revision Date | Description |
| K4.2G-01SC | 6/11/2008 | 120/240V 100 & 200 Amp Mast Type Service |
| Q1.1-01SC | 5/31/2013 | 120/240V 100A Self-Contained 3-Wire Down Loop |
| Q1.1-02SC | 5/31/2013 | 120/240V 200A Self-Contained 3-Wire Down Loop |
| Q1.1-03SC | 5/31/2013 | 120/240V 400A (320A) Self-Contained 3-Wire Down Loop |
| Q1.1-04IR | 5/31/2013 | 120/240V 400A Instrument Rated 3-Wire Down Loop |
| Q2.1-02SC | 5/12/2008 | 120/240V 200A Self-Contained 4-Wire Down Loop (Open Delta) |
| Q2.1-04IR | 5/12/2008 | 120/240V 400A Instrument Rated 4-Wire Down Loop (Open Delta) |
| Q3.1-02SC | 5/19/2008 | 120/240V 200A Self Contained 4-Wire Down Loop (Delta) |
| 120/208V | ||
| Standard | Revision Date | Description |
| Q3.3-02SC | 5/21/2008 | 120/208V 200A Self Contained 4-Wire Down Loop |
| Q3.3-04IR-06IR | 6/26/2008 | 120/208V 400/600A Instrument Rated 4-Wire Down Loop |
| 240/480V | ||
| Standard | Revision Date | Description |
| Q1.2-02SC | 5/31/2013 | 240/480V 200A Self-Contained 3-Wire Down Loop |
| Q2.2-02SC | 5/17/2008 | 240/480V 200A Self Contained 4-Wire Down Loop (Open Delta) |
| Q3.2-02SC | 5/27/2008 | 240/480V 200A Self Contained 4-Wire Down Loop (Delta) |
| 277/480V | ||
| Standard | Revision Date | Description |
| Q3.4-04IR-06IR | 6/26/2008 | 277/480V 400/600A Instrument Rated 4-Wire Down Loop |
| Q3.4-02SC | 6/3/2008 | 277/480V 200A Self Contained 4-Wire Down Loop |
| Standard | Revision Date | Description |
| UM8-IR600-IR400-SC | 5/15/2008 | Metering Cabinets |
| 120/240V | ||
| Standard | Revision Date | Description |
| UM8-02SC | 7/15/2022 | 120/240V 100A Self Contained 3-Wire Underground to Meter on Building |
| UM8-03SC | 6/12/2008 | 120/240V 400A (Class 320) Self Contained 3-Wire Underground to Meter on Building |
| UM8-04IR | 6/17/2008 | 120/240V 400A Instrument Rated 3-Wire Underground to Meter on Building |
| UM8.3-02SC | 6/24/2008 | 120/240V 200A Self Contained 3-Wire Pedestal |
| UM8.4-02SC | 6/28/2022 | 120/240V 200A Self Contained 3-Wire Post Structure |
| UM8-O2SC-4X | 4/5/2010 | 120/240V 200A Self Contained 4-Wire Underground to Quadplex Meter on Building |
| UM8.4-03SC | 10/19/2009 | 120/240V 400A (Class 320) Self Contained 3-Wire Pedestal |
| 120/208V | ||
| Standard | Revision Date | Description |
| UM8.7A-06IR | 4/27/2008 | 120/208V 600A Instrument Rated 4-Wire Underground to Meter on Building |
| UM8.7-02SC | 5/27/2008 | 120/208V 200A Self Contained 4-Wire Post Structure |
| UM8.7-06IR | 5/27/2008 | 120/208V 600A Instrument Rated 4-Wire Post Structure |
| UM8.7-20IR | 5/13/2008 | 120/208V 2000/3000A Instrument Rated 4-Wire CT Enclosure |
| UM8.7A-02SC | 12/6/2017 | 120/208V 200A Self Contained 4-Wire Underground to Meter on Building |
| 240/480V | ||
| Standard | Revision Date | Description |
| UM8.7-04IR | 5/27/2008 | 240/480V 400A Instrument Rated 4-Wire Post Structure |
| 277/480V | ||
| Standard | Revision Date | Description |
| UM8.8-02SC | 2/8/2012 | 277/480V 200A Self Contained 4-Wire Post Structure |
| UM8.8-04IR | 6/5/2008 | 277/480V 400A Instrument Rated 4-Wire Post Structure |
| UM8.8-06IR | 10/29/2008 | 277/480V 600A Instrument Rated 4-Wire Post Structure |
| UM8.7A-04IR | 12/6/2017 | 277/480V 400A Instrument Rated 4-Wire Underground to Meter on Building |
| UM8.8-09IR | 6/26/2008 | 277/480V 900A to 18000A Instrument Rated 4-Wire CT Enclosure |
| Secondary | ||
| Standard | Revision Date | Description |
| UJ4.1 | 1/18/2022 | Secondary Handhole Single-Phase Grade Enclosure |
| UM5-5.1R | 8/21/2012 | Additional Conduit for Pole Mounted Secondary Junction Box |
| UM5-5.R | 8/21/2012 | Pole Mounted Secondary Junction Box |
| Standard | Revision Date | Description |
| VG1.01/VG1.02 | 4/28/2022 | Overhead Pole Mount Conventional and CSP Transformers |
| UG1.02 | 3/25/2022 | Single Phase Padmount Loop Feed Transformers |
| UG3.02 | 4/12/2022 | Three Phase Padmount Loop Feed Transformers |
| Standard | Revision Date | Description |
| VG1.2R | 3/3/2017 | Single Phase CSP Transformer on Tangent |
| VG1.3R | 2/16/2017 | Single Phase CSP Transformer on Dead-End |
| VG1.4R | 2/27/2019 | Single Phase Conventional Transformer |
| VG3.3R & VG3.4R | 5/24/2021 | Three Phase Transformer Bank – Grnd Y-Y |
| VG3.4P | 5/8/2008 | Three Phase Overhead Transformer Platform: 277Y/480V |
| VG3.4PG | 5/8/2008 | Three Phase Overhead Transformer Platform: 277Y/480V |
| VG3.5 | 6/11/2008 | 4160 Primary Delivery Transformer Platform |
| VG3.5G | 3/17/2009 | 4160 Primary Delivery Transformer Platform |
| VG3.5R | 4/18/2008 | 4160 Primary Delivery Transformer Platform |
| Standard | Revision Date | Description |
| VR1.2R | 7/17/2017 | Single Phase Recloser |
| VS1.01R | 6/20/2018 | Miscellaneous Cutouts |
| VS1.1R | 6/20/2018 | Cutout – Single Phase |
| VS1.1R-LB | 6/20/2018 | Load Break Cutout – Single Phase |
| VS1.3R | 6/20/2018 | Cutout – Three Phase |
| VS1.3R-LB | 6/20/2018 | Load Break Cutout – Three Phase |
| VS2.31LR | 3/15/2008 | Disconnect Switches – Three Phase Large Conductor |
| VS2.31R | 3/15/2008 | Disconnect Switch – Three Phase |
| VS2.32R | 3/26/2008 | Disconnect Switch – Three Phase Horizontal GOAB |
| VS2.32V | 5/27/2008 | Disconnect Switch – Three Phase Vertical GOAB |
| VR3.2R | 1/22/2013 | Three Phase Oil Circuit Recloser |
| VR3.3R | 3/22/2016 | Three Phase Electronic Recloser w/ Bypass Switch |
| Standard | Revision Date | Description |
| VY1.3 | 4/10/2008 | 24.9/14.4kV Three-Phase Voltage Regulator Platform |
| VY1.3G | 4/10/2008 | Guarded 24.9/14.4kV Three-Phase Voltage Regulator Platform |
| VY2.3 | 4/10/2008 | Three-Phase Autotransformer Platform |
| VY3.3AR | 9/17/2009 | 24.9/14.4kV Three-Phase 900kVAR Auto-Controlled Capacitor Bank |
| VY3.3R | 8/10/2010 | 24.9/14.4kV Three Phase Capacitor Bank |
| Standard | Revision Date | Description |
| HRSM | 9/14/2020 | Heat Rate Sub-Metering Guides |
| Standard | Revision Date | Description |
| W1.1GR | 3/28/2008 | Pole Framing Guide |
| Standard | Revision Date | Description |
| DTR-1-7,-1-8,-2-7,-2-8 | 8/5/2015 | Single and Double Distribution Pole Truss Support |
| Standard | Revision Date | Description |
| PRE-CNS-000 | 7/15/2022 | Retrofitting Existing Facilities for Avian Protection |
| Standard | Revision Date | Description | |||
| PRE-CNS-000 pg. 6 | 12/22/2022 | Miscellaneous Avian Protection Assemblies | |||
| VC1.11MA-1 | 10/1/2010 | Single Support Crossarm Avian Safety Retrofit | |||
| VC1.41MA-1 | 10/1/2010 | Single Support w/ Neutral on Crossarm Avian Safety Retrofit | |||
| VC2MA-1 | 2/12/2016 | Double Support Crossarm Avian Safety Retrofit | |||
| VC2.5MA-1 | 2/12/2016 | Double Support Crossarm Avian Safety Retrofit | |||
| VC5MA-1 | 9/21/2010 | Single Deadend on Crossarm Avian Safety Retrofit | |||
| VC6MA-1 | 1/29/2016 | Double Deadend Crossarm Avian Safety Retrofit | |||
| VC5TMA-1 | 9/21/2010 | Three Phase Crossarm Tap Avian Safety Retrofit | |||
| VC1.11MAG-1 | 10/22/2010 | Single Support Crossarm Avian Safety/Sage Grouse Retrofit | |||
| VC1.11MAG-2 | 4/24/2012 | Single Support Crossarm Avian Safety/Sage Grouse Retrofit | |||
| VC2MAG-1 | 10/26/2010 | Double Support Crossarm Avian Safety/Sage Grouse Retrofit | |||
| VC2.5MAG-1 | 10/26/2010 | Double Support Crossarm Avian Safety/Sage Grouse Retrofit | |||
| VC5MAG-1 | 10/22/2010 | Single Deadend on Crossarm Avian Safety/Sage Grouse Retrofit | |||
| VC5MAG-2 & 3 | 5/29/2013 | Single Deadend on Two or Three Crossarms Avian Safety/Sage Grouse Retrofit | |||
| VC6MAG-1 | 10/22/2010 | Double Deadend on Crossarm Avian Safety/Sage Grouse Retrofit | |||
| VC5TMAG-1 | 11/18/2010 | Three Phase Fiberglass Crossarm Tap Avian Safety Retrofit | |||
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|
|
| Standard | Revision Date | Description |
| VG2MAG-1 | 5/31/2013 | Two Phase Bank Avian Safety/Sage Grouse Retrofit |
| VG3MAG-1 | 3/2/2021 | Total Three-Phase Bank Single Crossarm Avian Safety/Sage Grouse Retrofit |
| VG3MA(G)-2 | 3/2/2021 | Cover Up Three-Phase Bank Single Crossarm Avian Safety/Sage Grouse Retrofit |
| VG3MAG-3 | 3/1/2021 | Total Three-Phase Bank Double Crossarm Avian Safety/Sage Grouse Retrofit |
| VG3MAG-3A | 3/1/2021 | Total Three-Phase Bank Double Crossarm Avian Safety/Sage Grouse Retrofit |
| VG3MA(G)-4 | 3/1/2021 | Three-Phase Bank Double Crossarm Avian Safety/Sage Grouse Retrofit |
| Standard | Revision Date | Description |
| VP1.3MA-1 | 10/5/2010 | Surge Arrestor Assembly Avian Safety Retrofit |
| VP1.3MAG-1 | 6/28/2011 | Surge Arrestor Assembly Avian Safety/Sage Grouse Retrofit |
| VS1.3MA-1 | 10/5/2010 | Three Cutout Retrofit Avian Safety Retrofit |
| Standard | Revision Date | Description |
| TS-3W | 11/10/2020 | 3-Way GOAB Switch |
| Standard | Revision Date | Description |
| UQ1.1P2-Alt | 6/29/2022 | Meter Fiberglass Pedestal 120/240V 200A - 25kVA |