We had our very old cartridge fuse board replaced with a 17th ed consumer unit about 2 years ago (2014).
The new unit (2+ years old) is a Wylex (I know there is mixed product opinions, so please keep that to one side for the moment).
It is configured with a few MCBs on the RCD protected ways and the remainder are RCBOs. There are spare ways presently on both the RCD side and on the unprotected side for RCBOs.
There are no problems with this replacement unit to date. It has only tripped once (RCD trip) since the electrician installed it - due to a faulty oven element. He provided test certificates and self cert to the council at the time of installation.
We are close to getting quotes for a rear extension to the kitchen / Diner approx 24m2.
I would like to spec what expectations are for electrical a little more detailed than the notes the designer has, which says something like electrical work to be carried out in accordance with BSxxxxx.
My question is, for new circuits say at a minimum 1no new lighting circuit and 1 new socket ring for this extension area - will a new consumer unit need to be installed or can MCB or RCBOs be added to the existing consumer unit whilst complying with relevant regulations?
Hope I have made the question clear enough. Many thanks
The new unit (2+ years old) is a Wylex (I know there is mixed product opinions, so please keep that to one side for the moment).
It is configured with a few MCBs on the RCD protected ways and the remainder are RCBOs. There are spare ways presently on both the RCD side and on the unprotected side for RCBOs.
There are no problems with this replacement unit to date. It has only tripped once (RCD trip) since the electrician installed it - due to a faulty oven element. He provided test certificates and self cert to the council at the time of installation.
We are close to getting quotes for a rear extension to the kitchen / Diner approx 24m2.
I would like to spec what expectations are for electrical a little more detailed than the notes the designer has, which says something like electrical work to be carried out in accordance with BSxxxxx.
My question is, for new circuits say at a minimum 1no new lighting circuit and 1 new socket ring for this extension area - will a new consumer unit need to be installed or can MCB or RCBOs be added to the existing consumer unit whilst complying with relevant regulations?
Hope I have made the question clear enough. Many thanks