{PDF} Lightning Parameters for Engineering Applications (CIGRE Technical Brochure 549) V.A. Rakov, A. Borghetti, C. Bouquegneau, W.A. Chisholm, V. Cooray, K. Cummins, G. Diendorfer, F. Heidler, A. Hussein, M. Ishii, C.A. Nucci, A. Piantini, O. Pinto, Jr., X. Qie, F. Rachidi, M.M.F. Saba, T. Shindo, W. Schulz, R. Thottappillil, S. Visacro, W. Zischank

This document is an update on previous CIGRE documents on the subject, published in Electra more than three decades ago. Lightning parameters needed in different engineering applications are reviewed. New experimental data, as well as the old data, are evaluated. Additional lightning parameters, previously not considered by CIGRE, are included. Possible geographical and seasonal variations in lightning parameters are examined. Specific applications are considered and recommendations are made.