Electric Vehicle Charging - Unit 7: Earthing arrangements

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Unit overview

Unit 7 introduces earthing of EV charging installations in installations with the most common three types of public supply: TN-C-S; TN-S; and TT.

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In this unit, you will learn about:

• Why TN-S systems from DNO supplies should be treated in the same way as TN-S
• How to conduct a simultaneous contact assessment in relation to TN-C-S and TN-S supplies
• How electrical separation may be used to prevent simultaneous contact issues
• The limits of a separate TT system in addressing simultaneous contact issues
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.
More Information
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
Unit details
1 hour
G Kenyon Technology
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