IEC TR 60479-4:2020 PDF

IEC TR 60479-4:2020 (E) summarizes the basic parameters for lightning and its variability insofar as they apply to human beings and livestock. The possible direct and indirect interactions of strikes with bodies of living beings are indicated. The resulting effects caused by lightning currents for the organism are described. This document shows the differences of effects on human beings and livestock due to lightning strokes versus those effects of electric shocks derived from electrical systems. This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) lightning occurence and climatory effects around the world are depicted; b) direct strike description is extended; c) step voltage effects are expanded; d) upward streamer explanation is enhanced; e) other direct or indirect related effects to lightning injuries to the human body are specified; f) various safety procedures and related possibilities with respect to the personsal danger of lightning are presented.