Ammendment 2 AFDD BS7671

Ashley-Joseph · Mar 11, 2022

AFDD are manditory from the 28th of March on fixed final circuits using current carrying equipment not exeeding 32a People opinions on this. Also if a house doesn't have an afdd what would you code this as on a condition report ? Basically every Circuit would have to be an rcbo afdd at £130 a breaker that's alot of money per Circuit.

DPG · Mar 11, 2022

Ashley-Joseph said:
AFDD are manditory from the 28th of March on fixed final circuits using current carrying equipment not exeeding 32a People opinions on this. Also if a house doesn't have an afdd what would you code this as on a condition report ? Basically every Circuit would have to be an rcbo afdd at £130 a breaker that's alot of money per Circuit.

Has it definitely been confirmed that it is in the version?

timhoward · Mar 11, 2022

DPG said:
Has it definitely been confirmed that it is in the version?

NO!

The OP is a direct quote from an article written in Nov 2020.

DPG · Mar 11, 2022

timhoward said:
NO!

The OP is a direct quote from an article written in Nov 2020.

View attachment 95953

Exactly. Thanks for posting the exact reference.

HappyHippyDad · Mar 11, 2022

Ashley-Joseph said:
AFDD are manditory from the 28th of March on fixed final circuits using current carrying equipment not exeeding 32a People opinions on this. Also if a house doesn't have an afdd what would you code this as on a condition report ? Basically every Circuit would have to be an rcbo afdd at £130 a breaker that's alot of money per Circuit.

Crikey OP! Don't go scaring us like that with uncertain certainties!

timhoward · Mar 12, 2022

Just thinking …. if that ever happened I think I’d need higher credit limits on my trade accounts…

Dustydazzler · Mar 12, 2022

I just can't see any justification to fitting £135 arc fault breakers

Standard 8-10 circuit board swap with labour and arc fault breakers, looking at 3 grand with fitting

ridiculous

brianmoooore · Mar 12, 2022

The 'economy' solution will be to cut the number of circuits. One lighting circuit and one RFC with everything else hanging off of it.

nicebutdim · Mar 12, 2022

Leaving practical application to one side, AFDDs cost a lot of money as demand is low. If they became a mandatory requirement, it is without doubt that prices would drop by a significant percentage within a few months.

This shouldn't be news to anyone in the industry as it's exactly what happened with every other development, over many years; for example MCB, RCD, RCBO, SPD etc

freddo · Mar 12, 2022

How many members here have actually seen arcing result in a fire that didn't self extinguish before the flame left the accessory/consumer unit or whatever where it started? I can only think of one example and that was that national trust property that burned down. You know, the one where they saw smoke coming from a distribution board, no visible flames, but didn't switch it off, or attempt to stop the fire in any way... The one where electricians got blamed for not tightening a factory made, and sealed with paint, connection.

7029 dave · Mar 12, 2022

nicebutdim said:
Leaving practical application to one side, AFDDs cost a lot of money as demand is low. If they became a mandatory requirement, it is without doubt that prices would drop by a significant percentage within a few months.

This shouldn't be news to anyone in the industry as it's exactly what happened with every other development, over many years; for example MCB, RCD, RCBO, SPD etc

Well that goes against price theory, if demand is low the price should be, demand high then the price rises.

Dustydazzler · Mar 12, 2022

nicebutdim said:
Leaving practical application to one side, AFDDs cost a lot of money as demand is low. If they became a mandatory requirement, it is without doubt that prices would drop by a significant percentage within a few months.

This shouldn't be news to anyone in the industry as it's exactly what happened with every other development, over many years; for example MCB, RCD, RCBO, SPD etc

I remember fitting some RCBOs at my own house when they were literally just come onto the market and they were only £20-25 way back then. These were MK ones.

DPG · Mar 12, 2022

7029 dave said:
Well that goes against price theory, if demand is low the price should be, demand high then the price rises.

If demand rises then they sell more and so the price comes down. Expensive things are the ones that only sell in limited numbers.

nicebutdim · Mar 12, 2022

7029 dave said:
Well that goes against price theory, if demand is low the price should be, demand high then the price rises.

I get where you're coming from, but that would apply when a surplus of goods builds up due to low demand or high demand outstrips supply. In the case of AFDDs it's unlikely that manufacturers were churning them out on large numbers when little demand existed, but still have significant development and tooling costs to recoup. At this time AFDDs designed to fit UK distribution boards are a niche product, developed to meet anticipated future demand.

catdog1121 · Mar 14, 2022

I did a pre ammendment webinar with NAPIT, they have seen the final release but were not allowed to show what it was but was told AFDD has been rained back from the public comment version and now will only be required in certain circumstances, so suspect high rise buildings and maybe HMO's etc, might even include wood framed houses...

Dustydazzler · Mar 14, 2022

catdog1121 said:
I did a pre ammendment webinar with NAPIT, they have seen the final release but were not allowed to show what it was but was told AFDD has been rained back from the public comment version and now will only be required in certain circumstances, so suspect high rise buildings and maybe HMO's etc, might even include wood framed houses...

This would make much more sense , targeted use of AFDDs

newfutile · Mar 14, 2022

AFDD are only required on high risk residential buildings is the last and only update the IET gave ,everyone who has seen the new regs has signed non disclosures , so we wont actually know till the 28th March 2022

Julie. · Mar 14, 2022

catdog1121 said:
......

.. might even include wood framed houses...

So that would be 90% of new builds since 1990!

DPG · Mar 14, 2022

Julie. said:
So that would be 90% of new builds since 1990!

Is it that high? I thought it would be a lot lower than that. I'm sure most new builds in our area were brick/block in the 1990s and into the 2000s.

Julie. · Mar 14, 2022

DPG said:
Is it that high? I thought it would be a lot lower than that. I'm sure most new builds in our area were brick/block in the 1990s and into the 2000s.

Most of those I have seen are a timber frame, with block (drydashed) and stone block highlights, or brick outers.

My own, built in the 90's is just like this, big on insulation, but all inner side walls are plasterboard on the timber frame which forms the inner course - no double course of block or brick.

Perhaps it's a locality thing, but all those I have seen being built in West lothian and surrounding areas are like this.

7029 dave · Mar 14, 2022

Theses devices will be sitting in the CU's looking pretty and doing sweet FA at such a cost of them, JW proved that on some of the experiments he carried out on them, especially the 6A it just did not work.

superspark · Mar 15, 2022

catdog1121 said:
I did a pre ammendment webinar with NAPIT, they have seen the final release but were not allowed to show what it was but was told AFDD has been rained back from the public comment version and now will only be required in certain circumstances, so suspect high rise buildings and maybe HMO's etc, might even include wood framed houses...

I was on the phone this morning, Tuesday, and yes advised the same, I do hate it when people post things that arent 100% correct, The dates end of June, with a 4 month grace period anyway. They are talking about a combined Unit RCBO/AFDD 2 pole, but you cant even buy them yet !!

nicebutdim · Mar 15, 2022

superspark said:
I was on the phone this morning, Tuesday, and yes advised the same, I do hate it when people post things that arent 100% correct, The dates end of June, with a 4 month grace period anyway. They are talking about a combined Unit RCBO/AFDD 2 pole, but you cant even buy them yet !!

Available from a few manufacturers for some time now, but not cheap.

Gavin John Hyde · Mar 15, 2022

brianmoooore said:
The 'economy' solution will be to cut the number of circuits. One lighting circuit and one RFC with everything else hanging off of it.

Gas hob, oven and shower from the combi boiler. 1 rfc for kitchen 1 for rest of house and we will spur off for the lights with 3 amp fcus. Could get away with a garage board!!

Markyd · Mar 16, 2022

Ashley-Joseph said:
AFDD are manditory from the 28th of March on fixed final circuits using current carrying equipment not exeeding 32a People opinions on this. Also if a house doesn't have an afdd what would you code this as on a condition report ? Basically every Circuit would have to be an rcbo afdd at £130 a breaker that's alot of money per Circuit.

Complete Bullstuff

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