EG-0 constant fibrillation probability curve replication

Abstract

EG-0 Power System Earthing Guide - Part 1: Management Principles provides a high level process for determining the probability of fibrillation of an individual exposed to a voltage for a given time. The constant fibrillation probability curves from EG-0 outline the probability of fibrillation of a person given a specific contact scenario. An attempt was made to replicate the EG-0 process so that intermediate hazard magnitudes could be predicted for scenarios which were not explicitly documented in EG-0. This paper examines the assumptions made and issues encountered when trying to replicate the EG-0 process for determining the probability of fibrillation and the constant fibrillation probability curves. The initial results attempted to align to Figure B11-2 from EG-0. The scenario in Figure B11-2 relates to the conditions of prospective touch, no footwear and dry body with 50 ohm.m soil.