cooker tt no rcd

[TJ Anderson]

You wont overload that RCD in a house with the just the RFC's and cooker on it. Just move it over to RCD side if it is even required for your installation method (buried cabling?). No need for RCBO. Don't put lights on same RCD though, leave it alone unless you have worked on circuit and RCD protection is now required, then RCBO it to minimise disruption under single circuit fault condition.

 

[midgetman]

What type of RCBO were you thinking of fitting to this board?

dp if possible. if not fit new rcd which is dp and then in effect making it a twin rcd board.

 

[Engineer54]

dp if possible. if not fit new rcd which is dp and then in effect making it a twin rcd board.

It's going to be difficult to install a DP or SP+N RCBO in a standard CU unless are stand alone. Far better to go the dual RCD route.

Actually with TT CU's and DB's all protective devices should be DP, not that many if any take any notice, or even if they know why!! lol!!

 

[Octopus]

there's enough spare ways to put lights on rcd as well. Thought 16th you had to have upfront rcd on board..

I wouldn't do that. Leave the lights on the non RCD side so when the RCD trips, the lights stay on.

You work is related to the cooker circuit, NOT the whole installation.

The MWC comments section should be used appropriately!

 

[Pete999]

I think the problem was the way you worded you first post suggested you were going to wire cooker circuit directly from the 63a rcd. Got some of the oldies a bit excited

OIY you pack it in lol

 

[amckay]

I agree with Murdoch's comment above.

 

[Kate]

Shouldnt 16th edition cu's on TT have 100ma rcd up front?

 

[Deleted member 26818]

Shouldnt 16th edition cu's on TT have 100ma rcd up front?

All circuits will require fault protection which is usually provided by one or more RCDs.
I would have expected an S type 100mA RCD up front, and 30mA RCD protecting the downstairs sockets.
As it is, the OP will have to ensure that the new cooker circuit is provided with 30mA RCD protection.
This can be achieved by using a spare way on the RCD side of the board, or by using an RCBO on the non RCD side of the board.
The OP will then be left with either persuading the customer into having the MCBs on the non RCD side replaced with RCBOs, or just commenting on the lack of RCD protection on the EIC.