Surge Protection to BS EN/IEC 62305 Unit 8: BS 7671 regulations on surge protection (1)
Overvoltage protection is likely to be required for protection against either atmospheric lightning or switching surges events. This unit will introduce the different type of surge protection devices and the approach BS 7671 adopted from IEC and HD 60364 to risk assess the need for surge protection against atmospheric lightning damages
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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 technical intents of different parts of BS EN 62305.
• Understand how to use BS 7671 to evaluate the Calculated Risk Level (CRL) for electrical installations in domestic dwellings in the UK.
• Understand why the lightning flash density is an important factor in CRL evaluation.
• Understand why the length of incoming HV and/or LV cables is an important factor in CRL evaluation.
• Understand the importance of lightning impulse withstand ability of equipment as required by BS 7671.
• Understand the difference between full and partial lightning current.
• Understand the four types of surge protection devices.