Surge Protection to BS EN/IEC 62305 Unit 3: Introduction to earthing and its importance in lightning and surges
This unit provides a more in-depth introduction to how lightning uses the general mass of earth as an energy dissipation path and explores the important role of soil resistivity and step and touch voltages that could cause danger to human and livestock.
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Dr Tony Sung, Director, Energy Reduction Management Ltd
Tony is an independent Chartered Energy and Electrical Engineering Consultant. Tony was the course tutor for the MEng(Hons) degree course in Architectural Science and Engineering Services at Manchester University. He has given lectures in Lightning and Surge Protection to BEng(Hons), MEng(Hons) and MSc students in UK and Overseas universities. He is currently the Chairman of CIBSE Electrical Services Group and representing CIBSE on BS7671 the main JPEL64 committee.
Mr Robin Earl, Market Development Manager, DEHN (UK) Ltd.
Robin has over twenty years experience of the field surge protection, originally trained by DEHN and SOHNE prior to the establishment of the DEHN UK Office. He is currently serving in BS7671 JPEL64 subcommittee D on Surge Protection and Foundation Earthing. He has presented many CPD seminars on Surge Protection and Lightning protection to IET and CIBSE members.
• Appreciate how atmospheric lightning uses the earth as an energy dissipation path.
• Appreciate the hazardous outcomes of lightning discharges in the ground.
• Appreciate the important role of soil electrical resistivity for step and touch potential considerations.
• Appreciate the requirements of BS EN 62305 for good earthing.