Surge Protection to BS EN/IEC 62305 Unit 9: BS 7671 regulations on surge protection (2)
The use of Type 1, Type 1/2, Type 2 or Type 3 Surge protection devices is highly dependent on the location of the equipment and the transition interface of the supply cable between lightning protection zones (LPZs). This unit will introduce the lightning protection zone concept as per BS EN 62305-4 and BS7671 section 534 and examine what type of SPDs should be provided at relevant locations.
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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.
• Understand the lightning protection zone concept as per BS EN 62305-4 and BS7671 section 534.
• Understand the reduction of rated lightning impulse level between two different LPZs.
• Understand why consideration should be given to the provision of SPDs to protect from other sources.
• Understand how the effect of lightning current galvanic conduction through any electrical circuits installed in the LPZ0 zone can impact on the main electrical installation.