Individual RCBO

[The Ghost]

is that right?

Yes

 

[westward10]

Looks like a split load board so the rcd only protects some of the circuits, probably the power. I must say the rcd looks a bit wonky like it isn't fitted correctly.

 

[HandySparks]

Hi

I need to check what the electrical requirements (17th addition and Part P) are for RCBO's on a new kitchen extension.

Using the existing house Consumer Unit with one 100Amp 30ma RCBO.

Do all the different new kitchen circuits i.e Ring Main, Cookers (x2), Indiuction Hob, Lighting, Smoke/Fire Detectors, etc require their own individual RCBO? Or is one single RCBO (30ma 100Amp) supplying all circuits acceptable?

Thank you for your replies.

So that we know how to pitch replies, and since your profile says that you have no electrical qualifications, are you an electrician?

 

[HandySparks]

Looks like a split load board...

How can you tell?

 

[Pat H]

Yes thats correct. The 100A raining is just the max current its designed to work at. But it won't trip at 100A it woukd most likely just overheat and or fail to release correctly.
Also RCBOs normally have their own neutral fly lead.

 

[westward10]

How can you tell?

Hager board, rcd to left, main switch will be to the right.

 

[HandySparks]

Hager board, rcd to left, main switch will be to the right.

Maybe not on older boards:

 

[westward10]

Point taken

 

[Toneyz]

Apart from assesing existing earthing/bonding and the supply/switchgear can acept new loadings has the existing have enough spare ways as you may be having to install a new consumer unit.The new circuits that you install will have to comply with BS7671 amd.3 at least.I assumming T & E in plastered wall etc in zones.If you are installing into existing C.U. your circuits in theory comply however comments on existing reg group 314 Division of installation.