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Need for Additional protection for circuits serving zones 1 and 2 in a bathroom

Former Community Member over 4 years ago

I am looking at a like for like replacement of a shower and trying to avoid the cost of replacing the CU if possible as the property is likely to be completely gutted in the next 12 months and fitting a new CU before this is difficult to justify.

I am confused because the regs seem to contradict themselves.

701.411.3.3 states Additional protection shall be provided for all low voltage circuits of the locations including circuits that pass through zones 1 and or 2.... by the use of one or more RCD's.

Then 701.415.2 States that supplementary bonding is required unless main bonding is in place and all circuits are protected by a 30mA RCD.

To me 701.411.3.3 seems to state an RCD is always required but 701.415.2 implies that if supplementary bonding is in place then an RCD is not essential.

I would be interested in your views.

Thanks

Alan

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0 Former Community Member over 4 years ago

ebee:

Note ALL of the requirements will allow you to omit supp bonding. All not just any. Therefore main bonding must be in place if required and it must be continous from any metal pipework to any metal pipework in the bathroom, plus all ccts of the bathroom must be 30mA (or less) RCD protected and that includes all ccts running thru the bathroom as well.

Just to clarify that I do understand that all of the requirements need to be complied with, I was just trying to reduce the length of my post by omitting some text.

I think I am leaning towards biting the bullet and replacing the consumer unit, although I am going to take a look at the rest of the house before committing to anything. I have horrible feeling I am going to find multiple other issues and the project will snowball.
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0 Former Community Member over 4 years ago

ebee:

Note ALL of the requirements will allow you to omit supp bonding. All not just any. Therefore main bonding must be in place if required and it must be continous from any metal pipework to any metal pipework in the bathroom, plus all ccts of the bathroom must be 30mA (or less) RCD protected and that includes all ccts running thru the bathroom as well.

Just to clarify that I do understand that all of the requirements need to be complied with, I was just trying to reduce the length of my post by omitting some text.

I think I am leaning towards biting the bullet and replacing the consumer unit, although I am going to take a look at the rest of the house before committing to anything. I have horrible feeling I am going to find multiple other issues and the project will snowball.
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Need for Additional protection for circuits serving zones 1 and 2 in a bathroom

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