On 12/07/2018 12:49, Scott wrote:
On Thu, 12 Jul 2018 11:37:05 +0100, The Natural Philosopher
wrote:

Am I right in thinking that no matter how dysfunctional or prone to
nuisance tripping it is, a 30mA whole house RCD still meets current
regulations?

And in a 16 year old property that is to be let, does it NEED to meet
current regulations anyway?

As a digression, I believe the rules have now changed so a consumer
unit must be of metal construction. I assume this too is not
retrospective.

1. Is it a good idea or - as one person told me - totally pointless?

Its in response to a number of house fires that have started in a CU,
but were able to spread to the rest of the property.

So its certainly not pointless, but probably not a significant risk in
the grand scheme of things, especially if the original quality of
workmanship in the plastic CU was ok, and it gets some occasional
maintenance (i.e. screws checked for tightness etc) from time to time.

2. Would it be necessary to replace the entire unit or could one buy
box only and transfer the contents (Crabtree)? (Reason, I have
RCBOs.)

You could buy an empty CU and re-use the contents if compatible.


--
Cheers,

John.

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