This paper presents a review of lightning protection principles and set out a methodology to be followed to provide a total solution to both the direct and indirect effects of a lightning strike.

The information in this document may be used as a guide when planning lightning and surge protection for existing and future sites.  Although providing basic guidelines and recommendations which will undoubtedly improve lightning immunity, it is recommended that expert assistance be sought should out the ordinary circumstances be present or a site configuration not covered by this document be encountered.

It should be remembered that the provision of lightning protection both against direct strike and indirect effects will only improve lightning immunity. It is unlikely that 100% protection can ever be achieved although attention to proper design at an early stage before equipment installation can both reduce later costs and substantially improve protection in the longer term.

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