Tel: -020 8839 2439 /

New Wiring Regulation to protect end users from fire

On 1 January 2016, Regulation 421.1.201 (PROTECTION AGAINST FIRE CAUSED BY ELECTRICAL EQUIPMENT) came into full effect in England.

The new regulation is one of a number of changes following the implementation of the Third Amendment to BS 7671: 2008, The IET Wiring Regulations. 

Chapter 42 - Protection against thermal effects

The London Fire Brigade has recently reported statistics showing an increase in consumer unit fires as a result of arcing cables where tightening of terminals has not been sufficient. This causes overheating terminals which eventually ignite the plastic enclosures. 

Due to the number of consumer unit fires reported within domestic premises, Regulation 421.1.201 (UK only) has been added.  The regulation requires consumer units and similar switchgear to have their enclosure manufactured from non-combustible material, or be enclosed in a cabinet or enclosure constructed of non-combustible material and complying with Regulation 132.12. 

This regulation was implemented on 1st January 2016, which gave manufacturers 12 months to ensure an adequate supply of suitable cabinets or enclosures.

Installers and contractors need to design, install and certify to the new standard.  Contractors are expected to hold a copy of BS 7671:2008, incorporating Amendment 3, for any assessment visit taking place.

Other key changes under the Third Amendment

The London Fire Brigade has been working alongside Electrical Safety First, BEAMA and other industry organisations to make edits to Amendment 3 requirements that will directly protect consumers from potential harm by decreasing the risk of residential fires. 

Amendment 3 puts more responsibility on the installer, so it’s more important than ever that installers are up-to-date with the regulations.

All of our electrical training programmes and learner material has been updated to reflect the new amendment. Click here for details about our electrical training courses.

Centres can get updated training manuals, here.



Back to top