Abstract
An approach to grounding-system design is proposed for Australian conditions, whereby the allocation of limited resources can be made in a manner that provides an acceptable level of public safety, corresponding to the probability of a hazard occurring. The analysis is based upon realistic operating conditions and safety constraints and aims to provide requirements which are both technically and economically feasible. A philosophy and technique for quantifying the safety levels associated with particular protective grounding installations based upon location and line voltage levels are introduced. Location classifications based upon the likelihood of people being present are proposed. Touch-potential criteria are allocated such that people are not disadvantaged as a result of living in a remote location.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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