Correction: In the Industry Topic article “Life After 40: A Critical Look at Electrical Safety’s Most Contentious Number,” by Matthew J. Robinson, published in the Fall 2025 issue of NETA World, Sigma C Power Services LLC was twice incorrectly referred to as Sigma C. The article byline should read: By Matthew J. Robinson, Sigma C Power Services, LLC. The opening sentence in …

The reliability of medium-voltage underground systems is a foundational element for the continuous performance of wind farms, particularly in regions with challenging environmental conditions. In a global context of increasing integration of renewable energy sources into the electrical matrix, failures in buried insulated cables not only affect system availability but also jeopardize operational and economic safety.  The investigation described in …