BS7671 AMENDMENT 3 PDF

It has already started with the introduction of BS - Amendment 3 to the 17th Edition of the IET wiring regulations - on 1st January and will continue through to It is important that installers and contractors understand what the amendment is and how it will affect them. Why the change? BEAMA, the independent expert knowledge base and forum for the electrotechnical industry for the UK and across Europe, has said that the primary root-cause of fires in consumer units is loose connections. Additionally, the London Fire Brigade has found that fires involving consumer units have increased to approximately five incidents each week.

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It has already started with the introduction of BS - Amendment 3 to the 17th Edition of the IET wiring regulations - on 1st January and will continue through to It is important that installers and contractors understand what the amendment is and how it will affect them.

Why the change? BEAMA, the independent expert knowledge base and forum for the electrotechnical industry for the UK and across Europe, has said that the primary root-cause of fires in consumer units is loose connections.

Additionally, the London Fire Brigade has found that fires involving consumer units have increased to approximately five incidents each week. What it Means? To address this issue Amendment 3 will provide a degree of enhanced fire risk protection, requiring switchgear assemblies — including consumer units - to have their enclosures made from a suitable non-combustible material, or be installed in a cabinet or enclosure comprised from a suitable non-combustible material, for example steel.

This is all covered within Chapter 42 with the addition of Regulation MK Electric will be making the mandatory changes to their consumer units, using metal enclosures, which will be available at the end of March. This new range will be available alongside their MK Sentry insulated consumer unit portfolio. Enhanced fire safety is also referenced in the new Regulation All cabling must be supported such that it cannot prematurely collapse when exposed to extreme heat.

Once again there is a hint towards the use of metallic materials, although this is not prescribed. Amendment 3 also puts more responsibility on the installer. Chapter 41 examines the use of RCD protection on socket outlets. The regulation now requires RCD protection in accordance with regulation However there is an exception, for socket outlets up to 20A, where the socket outlet is specifically labelled, or where a documented risk assessment determines that RCD protection is not necessary.

It also notes that supplies up to amps have a new, more detailed schedule of inspections. Additionally, for installations greater than amps, a model list of items that require inspection during initial verification is provided in Appendix 6. This list, along with a documented risk assessment of any permitted exceptions to the list must be appended to the Electrical Installation Certificate and the declaration signed.

Dates to Know Over the next year and into there will be key dates that both manufacturers and installers need to keep in mind to comply with the updated regulation. The range will be available from the end of March. Additionally, MK Electric is offering electric installers and contractors the opportunity to take part in Continuing Professional Development Accreditation for Training to better understand the regulation.

More specifically the session will address how the regulation affects installers, specific changes to be aware of and information they will need to counsel their clientele. Training sessions are available from February. For more information or to schedule please contact Amy Westwood at Amy. Westwood Honeywell. Jan 05, In recent months the London Fire Brigade have reported an increase in domestic fires involving consumer units.

This was not due to defective products but as a result of arcing on cables where tightening of terminals has not been sufficient, resulting in overheating of the terminals which eventually ignited the plastic enclosures. Consequentially, Amendment 3 to BS introduces a new regulation relating to the enhancement of Fire Safety, as follows: Regulation

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Updates to 18th Edition

Although the IET and BSI are non-governmental organisations and the Wiring Regulations are non-statutory, they are referenced in several UK statutory instruments , and in most cases, for practical purposes, have legal force as the appropriate method of electric wiring. History of BS and predecessor standards[ edit ] The first edition was published in as the "Rules and Regulations for the Prevention of Fire Risks arising from Electric Lighting. Since the 15th edition , these regulations have closely followed the corresponding international standard IEC In , the IEE Wiring Regulations became British Standard BS so that the legal enforcement of their requirements was easier both with regard to the Electricity at Work regulations and from an international point of view. BS has converged towards and is largely based on the European Committee for Electrotechnical Standardization CENELEC harmonisation documents, and therefore is technically very similar to the current wiring regulations of other European countries.

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17th Edition Amendment 3 - What You Need To Know

Visit our 3 Day 18th Edition Course page for more info. From 1st July BS 17th Edition Amendment 3 must be used for the design of electrical installation. So apart from a colour change to the cover and a change in the numbering system, what things should we have implemented by now? Fire Safety The headline grabbing changes were those introduced for fire safety and after consultation with the Fire Brigade. Steel is an example of non-combustible material and most manufacturers of consumer units have adopted this method of compliance.

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Amendment 1 to BS 7671:2018 has been released

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