The proposal: Regulation 421.1.7 proposes that arc fault detection devices (AFDDs) be required on all single-phase final circuits supplying socket-outlets and fixed current-using equipment.Mandating of AFDDs on circuits with a rated current not exceeding 32 A The rationale for Amendment 2 is similar to that behind the original 18th Edition: given the way our industry operates, the roles electrical engineers serve, and the increasing speed of technological change, the Regulations must reflect these changes to ensure installations are safe, efficient, useful, and able to meet evolving standards. Now, BSI is seeking views on a new set of changes to the 18th Edition – Amendment 2 (AMD 2) – which could represent the biggest set of revisions to the Regulations yet. The IET Wiring Regulations, the essential publication for all professionals in the electrotechnical and engineering services sector, underwent an overhaul when the 18th Edition (BS 7671:2018) came into full effect in 2019.Īmendment 1, which concerns electric vehicle charge points, came into effect on 1 February 2020. Commenting on possibly some of the most significant revisions yet, Gary Parker, ECA technical manager, highlights some of the proposed changes to the 18th Edition of the Wiring Regulations.
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