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Surge Protection to BS7671 Unit 10: BS 7671 Regulations on Surge Protection - Part F: Inspection & testing of Electrical Installations with SPDs

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Unit overview

BS 7671 Part 1 Regulation 132.8 requires protective devices shall be protected against overcurrent suitably related to the characteristics of the circuit, the aim of this unit is to introduce to you the relevant regulations in Part 5 as appied to overcurrent protection for SPDs. The unit ends with the conclusion of discussing the requirements for inspection and testing of electrical installations with SPDs. 

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Level Technical
Partner Details

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.


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. He is also External Examiner to the University of Northampton.

Type Unit
What you will learn
At the end of this unit, you will be able to:

1. Understand the selection of SPDs with regard to the short-circuit current rating
2. Understand the selection of SPDs with regard to the follow current interrupt rating
3. Understand the arrangement of SPDs with relation to overcurrent protection with and without RCDs
4. Review the requirements for inspection and testing stated in Part 1 and Part 6 of BS 7671
5. Review some examples of do's and don'ts that were found in various inspection cases
Who should learn
The course will be useful for those who are involved with the design, installation, inspection, certification and approval/review of a non-complex electrical installation meeting BS7671 requirements for surge protection.
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