This guide was published by the Energy Netwrok Association (ENA) - http://www.ena.asn.au
Scope
This Guide addresses the high level aspects of policy associated with power system earthing. It provides a framework for managing earthing related risk associated with electrical power systems to meet societally acceptable levels. This framework provides principles for the design, installation, testing and maintenance of the earthing systems associated with power system assets on a.c. systems with nominal voltages up to EHV. A central part of this framework is a probabilistic derivation of allowable voltage criteria and exposure under fault conditions. It is intended for use by electrical utilities and HV asset owners, operators and customers, specifically regarding:
- major substations
- distribution networks
- transmission lines
- power stations, and
- large industrial systems.
Attachments
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