Immersion in a ring circuit

[Albert]

Hi,
Few years ago while extending the house, the house was rewired (not by me). The last week I decided to check the electrical configuration, what I found was that the immersion is connected to a ring circuit (socket outlets) protected by 32A MCB. I know that it is not recommended to connect the immersion to a RCD, I know as well that the regulations do not require a RCD protection for the ring circuits upstairs, but in the other hand I would like to protect the ring circuit with a RCBO. My question is whether connecting this circuit to a RCBO will cause a problem (the immersion). I can't separate the Immersion from this circuit unless I'll rewire it.
Albert

 

[plugwash]

there is no real problem with putting an immersion on rcd its just as they get older they can cause neusence tripping

the reason a dedicated cuircuit is required for immersion heaters is that they are a constant heavy load

having said that provided you are not useing electric heater its probablly not a real problem having it on the ring (provided ofc it is properly protected by a fused spur)

 

[brown-nought]

GN 1 states immersion heaters SHOULD (not must) be supplied by a separate circuit. (They must not be on a plug though.)
I've got a very similar arrangement in my own home. Its not ideal and I wouldn't have wired it that way myself but as its only used as a back up to a Gas CH system is it worth the aggro from the wife to ripe the floors up?

 

[securespark]

As you rightly point out, Albert, you cannot have Rcd protection on sockets upstairs without also protecting the imm htr, unless you rewire. From a load POV, I wouldn't worry about excessive loads, as the upstairs ring generally takes much less than the ground floor.

If you want RCD-protection for the upstairs ring, then I would go ahead. If the immersion goes faulty, then it may trip the RCD, but at least you will have a good idea what is causing it.

 

[Albert]

thanks to you all,
Just a small correction, the immersion is part of the ring but connected to it via a fused spur, the MCB in the CU is 32A, So if I correctly understood I should not worry about it.
Albert

by the way: ofc?

 

[plugwash]

ofc=of course

 

[Albert]

ofc=of course