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Electric Vehicle Charging Equipment Installation to BS7671: 2018 AMD 1 Unit 4: Issues to overcome with electric vehicle charging installations

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1 Hour
Unit overview

This unit provides an overview of the dangers associated with broken supply neutrals in PME installations, and how they provide a particular problem for EV charging equipment installations. The unit also introduces another issue that can affect electric vehicles on charge: the possibility that someone can simultaneously touch the metal body of a vehicle supplied by one installation, and exposed- or extraneous-conductive-parts connected to another means of earthing.

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Level Technical
Partner Details Director and Principal Consultant at G Kenyon Technology Ltd, Graham has established his reputation designing and implementing control and information management systems in the challenging environments presented by world-class construction programmes in the airport and railway industries. Graham is well versed in standard-setting, as he serves as: Chair of the IET’s Wiring Regulations Policy Committee; a member CIBSE’s Electrical Services Group Committee; an IET representative on JPEL/64 (BS 7671, IET Wiring Regulations), under which he also serves as Deputy Chair of JPEL/64 sub-committee D. Graham is author of the 3rd Edition of the IET Code of Practice for Electric Vehicle Charging Installations, co-author of the IET Code of Practice for Electrical Energy Storage Systems, and editor of some of the IET’s forthcoming Wiring Regulations publications: Guidance Note 5 Protection against electric shock (8th Edition); Guidance Note 6 Protection against overcurrent (8th Edition); and Electrical installation design guide (4th Edition).
Type Unit
What you will learn
In this unit, you will learn about:

• The dangers that can arise with PME (TN-C-S) supply earthing arrangements
• How the dangers associated with PME relate to EV charging equipment installations.
• Simultaneous contact of the earthed body of a vehicle and exposed- and extraneous-conductive-parts of other earthing systems.
• The BS 7671 requirements relating to simultaneously-accessible exposed-conductive-parts, and the definition of arm’s reach.
• The means of addressing simultaneous contact issues.
Who should learn
This course has been designed for those who are new to EV Charging Installations or for those requiring a better understanding of electric vehicle charging equipment installations. Learners using this course could be from any background or industry sector, from apprentices through to senior managers.
Other relevant courses available