Lightning Performance II Updating Backflash Calculations

An updated method of determining the backflash performance of transmission lines is thoroughly presented, using a step-by-step example. At each stage, sufficient information is given to apply the method to any system. Incorporated in the analysis are revised effects of corona and bound charge; effect of stroke location along the span; joint distribution of stroke current rate of rise and crest magnitude; frequency distributions of footing resistance, terrain type, stroke location, and system voltage.