RCBO in a 2 way

[robmw]

Hi Every one. new user, first posting.

I mainly like to read the posts but i can't find an answer to something i need to know. I have just bought a house which about 25 years ago had an extension on the front. The old Wylex fuse board is in the centre of the house. This was kept there with all the original wiring to it. However the Main supply fuse and the meter was moved to the new front door 4.5 metre away.

There is now a big fat Twin & earth (16mm i think) running from a main switch with 60Amp fuse next to the meter to the old Wylex consumer unit in the middle of the house.

In time i am going to get the house rewired, but for now my question is this.

Can I swap the main switch with the 60Amp fuse which is by the meter, for a 2way garage consumer unit? In this 2way consumer unit i want to put in a 50Amp RCBO to feed that 16mm twin & Earth to the old Wylex board, which then feeds the whole house. 50 Amp is enough for me, I have gas oven, hob and I dont have an electric shower or electric immmersion heater.

Can A Wylex RCBO fit into a NH series 2way garage consumer unit?

I hope you can understand what i am trying to explain.

This will be done through building control, i have got my 17th edition, 2391 and calibrated meters.

Thanks for your help in advance.

 

[Brightspark2]

There's no need to be like that! How come is doesn't comply with regulations?

My previous house, I updated my consumer unit to a Split board with Dual RCD which everything in the house feed from a RCD covered circuit and i got that passed with no problem and it didn't cause tripping.

This is what i would do in the middle of the night. Pull out all fuses, Reset RCBO, Put each fuse back in one at a time, if it trips, leave out till morning and sort.

I'd like to add, i've already done an insulation resistance test, R1 +R2 test for all the circuits already. all are perfectly fine.

I wasnt being funny with you there squire, I'm a friendly member of the site. If the fault was N-E you can take the fuses out and it would still trip. Youd be stuck with no power. It doesnt comply with regulations. To be honest even a split load consumer unit is a compromise but it's done due to cost otherwise they would all be RCBOs.

As teletrix says you may not need the RCD protection.