Technical Evaluation of Wind Load Design Criteria for Bus Structures in High-Voltage Substations Based on Technical Standards

In recent years, extreme weather events have become increasingly frequent, posing significant challenges to electrical infrastructure. This reality has driven important revisions to technical standards that guide the design and operation of substations. This study emerges in this context, aiming to compare three recently updated standards from 2023 and 2024: ABNT NBR 6123:2023, ABNT NBR 5422:2024, and IEEE Std 605:2023, analyzing how each addresses wind action on busbars and insulator strings. Considering this scenario, [1] conducted a comparative study of the mentioned standards to identify the level of safety provided by each approach. The study was carried out on an existing substation within the Brazilian basic grid, where a maneuverable bus reactor bay was added. However, the…