Summary

High winds have often caused severe damages to electric over-head lines. When such high winds appear localised within certain areas, they can often be explained by features of the local topography. The TB explains vortex shedding behind steep terrain and provides a systematic approach to evaluate local windspeeds that may occur on overhead lines in such terrain.

Additional informations

Publication type Electra
Reference ELT_249_2
Publication year 2010
Publisher CIGRE
Working groups WG B2.16
File size 1 MB
Pages number 4
Price for non member 20 €
Price for member Free
Local Wind Speed-Up on Overhead Lines for Specific Terrain Features
Local Wind Speed-Up on Overhead Lines for Specific Terrain Features