Electrical circuit for gas heating boiler installed 2003

richardw

The boiler was installed in an exisiting dwelling in 2003 and doesn't have a separate electrical circuit, not sure if I should get it sorted on a separate circuit.

Toiletduck

richardw wrote: »

The boiler was installed in an exisiting dwelling in 2003 and doesn't have a separate electrical circuit, not sure if I should get it sorted on a separate circuit.

I dont think it needs it, theyre usually just on a fused spur, although my one installed last year was just put on a 5 amp plug and plugged in.

Andy

phill99

It doesn't need a separate circuit. Just a fuded spur on the ring main. An ordinary plug plugged into a socket is not legal for a boiler. It has to be a fused spur as far as I am aware.

Toiletduck

phill99 wrote: »

It doesn't need a separate circuit. Just a fuded spur on the ring main. An ordinary plug plugged into a socket is not legal for a boiler. It has to be a fused spur as far as I am aware.

I dont see the difference? I fused spur is neater for sure but how is it any safer than using an identically fused plug?

It seems the previous owner had the new boiler fitted to a different location and the plug socket near it has allready been spurred so it isnt currently possible to wire it in directly. I was given the building control certificate thingy for the installation anyway, so presumably it is ok.

Andy

phill99

Toiletduck wrote: »

I dont see the difference? I fused spur is neater for sure but how is it any safer than using an identically fused plug?

It seems the previous owner had the new boiler fitted to a different location and the plug socket near it has allready been spurred so it isnt currently possible to wire it in directly. I was given the building control certificate thingy for the installation anyway, so presumably it is ok.

Andy

I had a new boiler installed last September and the old one was plugged into a 13amp socket. I was told catagorically by the Corgi Installer that it had to be a 13amp fused spur, and I couldn't work out the difference either. Corgi regs change very frequently so what was ok a year ago might not be appropriate today.

Toiletduck

phill99 wrote: »

I had a new boiler installed last September and the old one was plugged into a 13amp socket. I was told catagorically by the Corgi Installer that it had to be a 13amp fused spur, and I couldn't work out the difference either. Corgi regs change very frequently so what was ok a year ago might not be appropriate today.

Id be interested to know exactly how a fused spur is safer than a fused plug then. It was installed last year by Causeway Heating Warrington. Corgi registered firm who issued the building control cert afterwards.


Andy

phill99

Toiletduck wrote: »

Id be interested to know exactly how a fused spur is safer than a fused plug then. It was installed last year by Causeway Heating Warrington. Corgi registered firm who issued the building control cert afterwards.


Andy

So would I! I'm just stating that that is what they had to do last September. I don't have an answer, maybe Corgiguy can advise?,

Canucklehead

Hi

You don't have to take my word for it, see here.... http://www.worcester-bosch.co.uk/installer/products/gas-fired-boilers-and-systems/greenstar-28i-junior/supply-requirements

Scroll down to 'Electricity supply' and that's what you need . Note 3 amp fuse, not 5.

Corgi Guy.

baldelectrician

Toiletduck wrote: »

Id be interested to know exactly how a fused spur is safer than a fused plug then.
Andy

A fused spur is safer as (other than removing a plug) it is hard to stop someone re-inserting a plug when it has been removed.
A fused spur can have the fuse removed and a padlock inserted in the fuse carrier, thus preventing energising of a circuit being worked upon.

baldelectrician

As far as the seperate circuit thing goes, it's not mandatory. It is a good idea in circumstances where you could get nuicance tripping on a socket circuit causing the heating to cease to operate if it were on the ring circuit.

Toiletduck

baldelectrician wrote: »

A fused spur is safer as (other than removing a plug) it is hard to stop someone re-inserting a plug when it has been removed.
A fused spur can have the fuse removed and a padlock inserted in the fuse carrier, thus preventing energising of a circuit being worked upon.

I can see your point but it still seems a bit tenuous that to me, has there been an issue with gas engineers being electrecuted by the house occupants plugging the boiler back in during a service then? And of course you can allways remove the fuse from the plug aswell.

Canucklehead: I just assumbed 5amp I havent opened the plug to see, hopefully its 3 then, but then as it seems these Corgi qualified installers have failed to follow regulations perhaps I should check...


Andy