Type B or C RCBO

[La Poste]

Greetings.

Friend of mine has a fridge freezer and a standing freezer that need RCBO protection.

Both these appliances run off the same socket which is a separate radial so easy to protect as it will only be these two items on this one particular circuit.

I am not sure of the starting current of these appliances and so was wondering whether to fit a type B or type C 16 Amp RCBO.

What do you think?

Thanks a lot.

 

[Octopus]

This particular radial is not, it's fused at 32 Amps, but the rest of the house board is.

Hum, now things are a bit clearer. If you're adding socket(s) in a garage on a SDB they do need to be RCD'ed IMHO.

That said I do think the RCD for all new sockets is a completely daft idea. I recently lost some work because I quoted by the book an another sparky didn't and he fitted new sockets without RCD protection

Is this the garage/outbuilding you've been working on recently?

 

[La Poste]

Yes, this is for my assessment.

It's a 6mm SWA from the house non RCD protected fused at 32 Amps.
Sub board in the garage with lights and sockets all RCD protected.

One socket for fridge freezer that may or may not be RCD protected (the owner will be told to not use this socket for anything else)

 

[GLENNSPARK]

just telling em wont be enough mate....it wont stop em using it for something else "just this once"........and sods law will dictate it will be THEN that a fault occurs.....need to label it up clearly and make a note of it on your paperwork......but as has been suggested here already...you can surface run this cable..or.. you can run it in an earthed metalic conduit....thats if buried at a depth of less than 50mm...would still need labeling up though......and as its a garage it wont require notification (assuming its an alteration or addition to an EXISTING circuit)...if its a new circuit (back to the board)....then its notifyable and a minor works wont cut it either then...........

 

[Octopus]

Not sure I'd be using a circuit/socket without RCD protection for my assessment!

Isn't this a rebuilt garage and haven't you fitted a new SBD in the garage?

 

[La Poste]

It's a rebuilt garage with a new SDB yes.

The cable was left from the old existing garage.

Why would the assessor not like a non RCD protected socket if it is clearly labelled?

 

[GLENNSPARK]

Not sure I'd be using a circuit/socket without RCD protection for my assessment!

Isn't this a rebuilt garage and haven't you fitted a new SBD in the garage?

but if its in the regs that it can be done (under certain conditions) Murdoch then wouldn`t an examiner see this as an UNDERSTANDING of the regs?.......

 

[Octopus]

It's a rebuilt garage with a new SDB yes.

The cable was left from the old existing garage.

Hum, don't you love these cans of worms.

IMHO, not notifiable, EIC required, including a formal test on the "supply" radial, all sockets in garage RCD protected.

 

[Octopus]

but if its in the regs that it can be done (under certain conditions) Murdoch then wouldn`t an examiner see this as an UNDERSTANDING of the regs?.......

reg number?

 

[La Poste]

Supply radial has been tested very well.

EIC good, this may impress the assessor, non RCD protected socket I can see where you are coming from, I may just leave it and not fit it.

 

[GLENNSPARK]

reg number?

411.3.3 brb

 

[La Poste]

411.3.3 brb

I agree, I also like the idea of putting special plugs on the equipment and a special socket that will only work with these plugs.

But for overall safety I think I will opt for the circuit with its own RCBO feeding just this socket and leave it at that.

 

[SPARTYKUS]

Or cut plug off and fit a fused spur!!

 

[La Poste]

Yes that is the best idea, make it fixed equipment and have no socket at all.

It still leaves the problem of the damp though, best to RCBO it IMHO.