CIGRE Canada 2020 Virtual Study Committees Meeting Highlights

The CIGRE Canada 2020 Virtual Study Committees Meeting held on November 6, 2020, focused on various aspects of overhead lines, including design, construction, operation, and asset management. Key discussions included challenges in new line construction, environmental and safety aspects, and technological innovations. Participants like Pierre Van Dyke from Canada shared insights on topics such as inspection techniques and maintenance strategies for ageing infrastructure. The meeting also delved into international activities and future directions in the field.

• CIGRE
• Canada
• Virtual Meeting
• Overhead Lines
• Asset Management

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1. Study Study Committee Committee Update Meeting Update Meeting B2 Overhead lines B2 Overhead lines Canadian Representative: Pierre Van Dyke Canadian Representative: Pierre Van Dyke CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020

2. 2 SC B2 Overhead lines Herbert Lugschitz (AT) Strategic Advisory Group Herbert Lugschitz (AT) TAG 04 Electrical performance Javier Iglesias (ES) Customer Advisory Group Schell Halsan (NO) TAG 05 Tower/foundation/insulator Joao Batista da Silva (BR) TAG 06 Mechanical behaviour Pierre Van Dyke (CA) Membership Regular members from 24 countries Observers from 17 countries 24 Working Groups and 2 joint Working Groups TAG 07 Asset management John McCormack (AU) CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020

3. 3 SC B2 Organization Scope Design, construction and operation of overhead lines (OHL). Mechanical and electrical design of line components Validation tests Study of in service performance Assessment of the state of line components and elements, maintenance, refurbishment and life extension as well as upgrading Strategic Direction Increase the ampacity of existing lines Ensure reliable lines, or establish / improve the reliability of existing lines Ensure environmentally compatible lines Assessment of lines, methods, new tools CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020

4. Preferential Subjects Paris 2022 PS 1 Challenges and new technological solutions in design and construction of new lines PS 2 Asset management PS 3 Environmental and safety aspects from the OHL CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020 4

5. B2 International Activities CIGRE A2 / B2 / D2 International Tutorials & Colloquium on latest trends & innovations in - Power transformers and reactors - Overhead lines - Materials and emerging test techniques New Delhi, India November 2019 Key Note Speaker : Pierre Van Dyke, Inspection and maintenance techniques, ageing (fatigue, corrosion, inadequate design) CIGRE 2020 E-Session Technical Council Award Recipients A2 Power transformers and reactors Michel Duval (CA) B2 Overhead lines Pierre Van Dyke (CA) CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020 5

6. B2 Future Meetings 2021 Slovenia - Annual B2 SC meeting and Symposium - Beginning of June Paris CIGRE Session B2 GDM, tutorials, poster session, meetings of AG s and WG s - August 2022 Paris - Annual B2 SC meeting and CIGRE session - August 2023 Japan/Sendai - Annual B2 SC meeting and Colloquium - October CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020 6

7. Recently Published Reports WG B2.61 [J. Toth, Secretary (CA), G. Fecht (CA), S. Langlois (CA), A. Mogilevsky, CM (CA)] TB 818 Transmission line structures with fiber reinforced polymer (FRP) composite, November 2020, 241 pages WG B2.24 [A. Haldar, Secretary, Author (CA) + F. Legeron, member (CA), N. Lemieux, CM (CA), S. Langlois, CM (CA)] TB 809 Dynamic loading effects on overhead lines: Impact on structures, June 2020, 66 pages WG B2.63 [C. Wang (CA), G. Watt (CA)] TB 792 Compact AC overhead lines, February 2020, 163 pages WG B2.23 [A. Haldar, Author (CA), J.P. Chouteau (CA), member, G. McClure, Reviewer (CA)] TB 788 Dynamic loading effects on overhead lines - Impact on foundations, January 2020, 185 pages CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020 7

8. Working Groups Working Group Anticipated Completion Date Convenor Subject Calculations of the electrical distances between live parts and obstacles for OHL: Preparatory studies for revision of IEC standard (IEC61865 IEC60826 EN50341) Robert Lake (NZ) B2.40 2020? Peter Dulhunty (AU) Franck Schmuck (CH) ? B2.50 Safe handling of fittings and conductors End 2020 Survey of Operational Composite Insulators Experience & Applications B2.57 Almost finalized Comments received from reviewers End 2020 Giorgio Diana (IT) Vibration Modeling of High Temperature Low Sag conductors - Self Damping characterization B2.58 Dale Douglass (US) Hugo Valente (PT) Javier Iglesias (ES) Balint N meth (HU) Pierre Marais (ZA) ? B2.59 Forecasting dynamic line ratings 2020 Affordable Overhead Transmission Lines for Sub-Saharan Countries B2.60 2021 B2.62 Design of Compact HVDC Overhead Lines 2020 Inspection and Testing of Equipment and Training for Live- Line Work on Overhead Lines Detection, Prevention and Repair of Sub surface Corrosion in Overhead Line Supports, Anchors and Foundations B2.64 2019 B2.65 2020 CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020 8

9. Working Groups Anticipated Completion Date Working Group Convenor Subject Vivek T. Chari (IN) Nathan Spencer (AU) C cile Roz (FR) Masoud Farzaneh (CA) Naji Sahlani (US) J.P. Paradis (CA) Ying Chen (CN) Peter Dulhunty (AU) Nishal Mahatho (ZA) B2.66 Safe handling and installation guide for HTLS 2020 B2.67 Assessment and Testing of Wood and Alternative Material Type Poles 2021 Sustainability of OHL conductors and fittings Conductor condition and life extension B2.68 2021 B2.69 Coatings for overhead power networks 2021 Aircraft warning markers and bird flight diverters for overhead lines Experience and recommendations B2.70 End 2020 B2.71 Recommendations for Interphase Spacers of Overhead Lines 2022 B2/D2.72 Condition monitoring and remote sensing of overhead lines 2022 Guide for Prevention of Vegetation Fires Caused by Overhead Line Systems B2.73 2023 Use of unmanned aerial vehicles (UAVs) for assistance with inspection of overhead power lines B2.74 2022 CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020 9

10. Working Groups Anticipated Completion Date Working Group Convenor Subject Bruce Application guide for insulated and un-insulated conductors used on medium and low voltage overhead lines Lightning & Grounding Considerations for Overhead Line Rebuilding and Refurbishing Projects, AC and DC Risk Management of Overhead Line networks: A model for identification, evaluation and mitigation of operational risks B2.75 2022 McLaren (ZA) William A. Chisholm (CA) Asif Bhangor (AU) Rob Stephen (ZA) George Watt (CA) Fabian Lehretz (DE) Sebastien Langlois (CA) Lukasz Nazimek (PL) B2/C4.76 2022 B2.77 2023 B2.78 Use of High Temperature Conductors in New Overhead Line Design 2024 Enhancing Overhead Line Rating Prediction by Improving Weather Parameters Measurements Numerical Simulation of electrical fields on AC and DC Overhead Line Insulator Strings Increasing the Strength Capacity of Existing Overhead Transmission Line Structures Overhead Line Foundations for Difficult Soil and Geological Conditions B2.79 2022 B2.80 2023 B2.81 2023 B2.82 2024 CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020 10

11. Proposed New Working Groups Guide for the identification and mitigation of risks posed by overhead distribution lines Monitoring, forewarning and melting of ice on transmission lines, Fan Sanghai (CN) Guide for design, construction and installation of emergency restoration systems to use in repair/maintenance operations of overhead lines, Masoud Abdolhosseinpur (Iran) Guide for the identification & mitigation of risks posed by overhead distribution lines (South Africa) Tower vibration OHL modelling and experimental risk, Giorgio Diana (CA) Performance of spacer dampers, Anish Anand (IN) Improvements on construction techniques for OHL Experience with in service insulators in DC Lines, A. Pigini (IT) Sensitive analysis on the OHL supports reliability, R. Menezes (BR) Transient electric performance of OHL grounding devices under lightning CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020 11

12. Canadian Representative Pierre Van Dyke, Eng. M.A.Sc. Ph.D. Company: Hydro-Qu bec Research Institute Title: Research Scientist Email: vandyke.pierre@ireq.ca Phone: 1 450 652-8044 CIGRE Canada 2020 Virtual Study Committees Meeting, November 6, 2020 12