Underground Power Cables vs. Disasters - Who Wins? | Harry Orton, IEEE

Underground Power Cables vs. Disasters - Who Wins? | Harry Orton, IEEE

🎙 Harry Orton 👥 556 📅 December 1, 2025 ⏱ 10 min 👁 35 📄 expert opinion 🧭 2026-08-16
Available in: English (current) Français

Keywords

underground cablesmajor disturbancesCIGRE TB 959submarine cablessnaking

Summary

In this interview, Harry Orton, a consultant with 31 years of experience in underground and submarine cables, discusses the resilience of underground power cables to major disturbances such as hurricanes, wildfires, earthquakes, and floods. He is the session chair for two cable sessions at the CIGRE 2025 International Symposium in Montreal. Orton highlights the recently published CIGRE Technical Brochure 959, titled ‘Behavior of Cable Systems under Major Disturbances,’ which compiles international case studies and mitigation strategies. He emphasizes that while underground cables have higher initial costs than overhead lines, their lifetime costs are lower due to longer lifespan and better survival in disasters. Examples include cables surviving floods in Bangkok and earthquakes in Japan, where snaking techniques mitigate ground movement. The brochure provides detailed guidance on design and installation to enhance resilience. Orton stresses the importance of considering these factors when investing in undergrounding projects.

145 words

Critical Evaluation

Value of the Information & Strength of the Argument

The interview provides valuable insights into the resilience of underground power cables, a topic of increasing relevance given the push for undergrounding. Orton’s arguments are based on his extensive experience and the collaborative work of the CIGRE working group, which lends credibility. He effectively counters the common concern about high upfront costs by introducing the concept of lifetime cost, and he provides concrete examples of cables surviving disasters. However, the argumentation is somewhat anecdotal and lacks quantitative data or detailed technical explanations, which limits its depth.

Scientific Rigor, Source Quality, Title Accuracy

The scientific rigor is moderate. The primary source is the CIGRE Technical Brochure 959, which is a reputable publication from an international organization. The interview references real-world events and mitigation measures, but without specific citations or data. The title accurately reflects the content, and the discussion is consistent with the stated topic. The presence of a commercial context (APC Media) is noted but does not affect the technical content.

170 words

Title / Content Match

The title accurately reflects the content, which discusses the resilience of underground power cables to various disasters.

Quality & Reliability

7/10

The content is based on the expert testimony of Harry Orton, a consultant with 31 years of experience in underground and submarine cables. He references a technical brochure (CIGRE TB 959) resulting from a six-year working group with international contributions. However, the interview format provides limited detail and no direct citations of specific studies or data.

Key Moments

Cited Sources

  • CIGRE Technical Brochure 959 — Mentioned as the main output of the working group on cable behavior under major disturbances.
  • Power Systems Technology — Website of the hosting media outlet, providing context for the interview.
  • Power Systems Technology LinkedIn — LinkedIn page for the media outlet.

Concurring Sources

  • CIGRE Technical Brochure 959 — The brochure is the primary source cited, and its content is consistent with the interview.

External References

Contribution & Novelties

The interview highlights the relatively under-discussed resilience of underground cables to natural disasters, providing a counterpoint to common concerns. It introduces the CIGRE Technical Brochure 959 as a comprehensive resource, which is a significant contribution to the field. The discussion of snaking as a mitigation technique for earthquakes is particularly valuable.

Pour aller plus loin :

92 words

Radar Profile

The radar profile shows a balanced performance with moderate scores across all dimensions, indicating a reliable but not deeply technical presentation. The highest scores are in quality of information and reliability, reflecting the expert's credibility, while quantity and technical depth are slightly lower due to the interview format.

Reliability 7/10