Updates & Events
Task: Inspection, Assessment, and Mitigation of Buried Steel Pipe Corrosion
Task Description: The task applies various detection techniques to investigate their effectiveness, while studying coating degradation as a function of coating types, pipe installation environments, and stray current conditions.
Task: New Technique Development for Online and Off-Line Condition Assessment of Laminar Dielectric Cable Systems
Task Description: This task will evaluate and characterize new techniques for condition assessment and diagnostics of laminar dielectric cables, with emphasis on techniques that provide localization information on potential defects or degradation and continuous online monitoring. Techniques under investigation include prototype testing of test stations for buried steel pipe corrosion monitoring.
Task: EPRI Guide for Testing Insulating Paper and Fluid of Laminar Dielectric Transmission Cables
Task Description: This task is a multi-year effort to create an up-to-date guide to test and analyze insulating paper and fluid of laminar dielectric cable systems to assess insulation and system conditions. This report includes results from tests and case studies.
Task: EPRI Dissolved Gas Analysis Guide for High-Voltage Cables and Transformers—Case Studies
Task Description: This task continues prior EPRI research to create a comprehensive dissolved gas analysis guide to assess conditions of laminar dielectric cable systems. This report also includes example test results and case studies.
Task: Evaluation and Documentation of Vintage Pipe-Type Cable Performance and Experience
Task Description: This task enhances the vintage guide to document changes in component materials, design, manufacturing, and other known issues of pipe-type cable systems.
Task: Failure Root Cause Study of Laminar Dielectric Cables
Task Description: EPRI has performed comprehensive research in developing an approach for life management of cable systems, including cables, terminations, joints, pressurizing plants, and others. This task will continue such investigations and perform further laboratory experiments to better understand laminar dielectric cable aging and failure mechanisms.
Engagement Opportunities
| Meeting | Scheduled Date | Location | Information |
|---|---|---|---|
| Underground Transmission Task Force | February 19-21 (In Person) : February 26-29 (Virtual) | Charlotte, NC | Meeting Materials |
| EPRI R&D Project Update: Underground TransmissionMid-Year Webcast | June 11 : 1:00pm - 2:30pm ET | Webcast | Meeting Materials |
| Underground Transmission 2026 ARP Rollout #1 | June 18 : 1:00pm - 2:30pm ET | Webcast | Meeting Materials |
| Underground Transmission 2026 ARP Rollout #2 | August 6 : 1:00pm - 2:30pm ET | Webcast | Meeting Materials |
| Underground Transmission Task Force | August 19-22 (In Person) : August 26-29 (Virtual) | Charlotte, NC | Meeting Materials |
| EPRI Underground Transmission (Program 36) NewSupplemental Launch Webcast | October 15 : 1:00pm -2:00pm ET | Webcast | Meeting Materials |
| EPRI End of Year Webcast: P35.019, P36.008, P37.116High Voltage Direct Current | November 22, 11:00am - 12:00pm ET | Webcast | Meeting Information |
| Underground Transmission Task Force - March 2025 | March 10-13 (In Person) : March 17-20 (Virtual) | Charlotte, NC | RegisterHere |
| EPRI Kick Off Webcast: High Voltage Direct CurrentConverter Stations and FACTS | January 31 11:00am - 12:00pm ET | Webcast | Webcast Information |
2025 Planned Deliverables
| Product ID | Name | Type |
|---|---|---|
| TBD | Pipe-type Cable System Buried Steel PipeCorrosion Volume 1: Introduction, Fundamentals, and Practices |
Report |
| TBD | Pipe-type Cable System Buried Steel PipeCorrosion Volume 2: Pipe Test Facility and Results |
Report |
| TBD | Pipe-type Cable System Buried Steel PipeCorrosion Volume 3: Extruded Coating Test Rig and Results |
Report |
| TBD | Pipe-type Cable System Buried Steel PipeCorrosion Volume 4: Corrosion Monitoring System Development and Testing |
Report |
| TBD | Pipe-type Cable System Buried Steel Pipe CorrosionVolume 5: Field Assessment Approach and Case Studies |
Report |
| TBD | Life Evaluation and Management of LaminarDielectric Cable Systems Volume 1: Introduction and Approach |
Report |
| TBD | Life Evaluation and Management of LaminarDielectric Cable Systems Volume 2: Evaluation and Documentation of VintagePipe-type Cable Performance and Experience – 2025 Update |
Report |
| TBD | Life Evaluation and Management of LaminarDielectric Cable Systems Volume 3: EPRI Guide for Testing Insulating Paperand Fluid – 2025 Update |
Report |
| TBD | Life Evaluation and Management of LaminarDielectric Cable Systems Volume 4: EPRI Dissolved Gas Analysis Guide forHigh-Voltage Cables – 2025 Update |
Report |
| TBD | Life Evaluation and Management of LaminarDielectric Cable Systems Volume 5: Best Practices for High-PressureFluid-Filled (HPFF) Pipe-Type Cable Pressurization Plant Upgrades - 2025Update |
Report |
| TBD | Life Evaluation and Management of LaminarDielectric Cable Systems Volume 6: Pressurization Procedures forHigh-Pressure Fluid-Filled and High-Pressure Gas-Filled Cable Systems: 2025Update |
Report |
| TBD | Failure Root Cause Study of LaminarDielectric Cables Volume 1: Impact of Fluid Freezes on EnergizedHigh-Pressure Fluid-Filled Pipe-Type Cable Insulation - 2025 Update |
Report |
| TBD | Failure Root Cause Study of LaminarDielectric Cables Volume 2: Utility Experience of In-Pipe Thermo-MechanicalBending (TMB) Events on Pipe-Type Cables - 2025 Update |
Report |
| TBD | Failure Root Cause Study of LaminarDielectric Cables Volume 3: Evaluation of Three Laminated Paper Polypropylene(LPP) Cable Pieces with One Containing Failure - 2025 Update |
Report |
2024 Deliverables
| Product ID | Name | Type |
|---|---|---|
| 3002029507 | Mitigation, Inspection, and Monitoring of Corrosion on Buried Steel Pipes of Pipe-Type Cable Transmission Systems: 2024 Update |
Report |
| 3002029508 | EPRI Corrosion and Protection Monitoring System Development for Condition Monitoring of Buried Steel Pipes in Pipe-Type Cable Systems: 2024 Update |
Report |
| 3002029509 | EPRI Guide for Testing Insulation Paper and Fluid of Transmission Laminar Dielectric Cable Systems-2024 Update |
Report |
| 3002029510 | EPRI Dissolved Gas Analysis Guide for High-Voltage Cables and Transformers - 2024 Update |
Report |
| 3002029511 | Evaluation and Documentation of Vintage Pipe-Type Cable Performance and Experience-2024 Update |
Report |
| 3002029512 | Pressurization Procedures for High-Pressure Fluid-Filled and High-Pressure Gas-Filled Cable Systems: 2024 Update |
Report |