In cooperation with
Novaris Technologies (M) Sdn Bhd


SYNOPSIS

This paper first presents a general discussion of the IEC standards relating to lightning and surge protection. These comprise the IEC standard series IEC62305 and IEC61643 which have been adopted in Malaysia. The paper will present a summary of the lightning risk standard IEC62305-2, examine how it can be used and present a spreadsheet analysis that simplifies the procedure. From this analysis the paper will show how surge protection can be dimensioned and applied. A method of sizing SPDs will be presented. Part of the risk process identifies the possible need for primary and secondary surge protection. Their differences will be examined. By examining test waveforms and the performance of SPDs under various standard tests proper installation techniques can be identified. This leads to an examination of one port versus two port SPDs.

Methods of overcurrent protection and coordination with upstream fuses and circuit breakers will be presented.


SPEAKERS’ PROFILE - Mr. Phillip Tompson

Phillip Tompson is the Founder and Managing Director of Novaris Pty Ltd. He holds an honours degree in Electrical Engineering from the University of Queensland 1979. He has been a practicing electrical engineer for 40 years and has specialised in the field of lightning protection for the last 25 years. He is a Chartered Professional Engineer, a Fellow of the Institution of Engineers, Australia, a member of the Institution of Electrical Engineers (UK) and a member of the IEEE. He is currently the Institution of Engineers, Australia nominated representative on Australian Standards committee EL-024 responsible for the preparation of AS1768, the Australian Standard on Lightning Protection. He represents Australia on IEC committees TC81 and SC37A responsible for IEC standard series IEC 62305 and IEC.