Adding circuits to a full DB

cliffed · Jan 31, 2019

what's your take on adding circuits to a full DB.
Warehouse unit,3p DB,full to capacity,new 3p circuit to be added,client refuses to upgrade DB.
Would you reconfigure a couple of circuits to allow for this new circuit.

dmxtothemax · Feb 1, 2019

Squeezing in a single phase circuit may be possible ?
But another three phase circuit ?
That's just crazy stuff
Tell him do it right or not at all !
after all if something goes wrong
then YOU wear the can not him.

cliffed · Feb 1, 2019

Kinda agree,but telling the client & making an observation & written report,given to the client,he too has that responsibility ,& decision making.
Maybe no different from replacing plastic Db’s,or any other “grey area” regulation.
Wirepuller makes a good point,logic & a sensible approach may be the answer.

Deleted member 9648 · Feb 1, 2019

dmxtothemax said:
Squeezing in a single phase circuit may be possible ?
But another three phase circuit ?
That's just crazy stuff
Tell him do it right or not at all !
after all if something goes wrong
then YOU wear the can not him.

It may or may not be possible, neither you nor I know the configuration of the existing DB. But to dismiss it without investigation as crazy is just plain daft. There could be a number of MCB's feeding a radial with one socket on the end which could easily and safely be tacked onto a ring as a spur gaining a way. Who knows without checking.
Why is something likely to go wrong with a carefully tested and thought out alteration to circuits in an existing DB? You clearly don't have faith in your own ability to engineer a different but compliant solution to a problem.
'Walk away' is one of the most common phrases on here of late, is nobody capable of thinking of something different?
Apparently not.....We live in Little Britain World.........'Computer says no'......

Starjack · Feb 2, 2019

Why do desperate sparkies insist on doing sub standard work for cheap customers.
Increase the quality of your customer base and give over with this rubbish.

markythesparky · Feb 2, 2019

There seems to be a marked difference in opinion on this thread than another similar one that I had argued before :

(Does this setup contravene any regs or is it ok? - https://www.electriciansforums.co.uk/threads/does-this-setup-contravene-any-regs-or-is-it-ok.167990/.

For the record, and you will see this from the other thread, I don't believe it compliant to lump circuits together. I asked the NICEIC about the relevant regs relating to this and they agree (albeit they don't write BS7671). My only regret is that I didn't come up with the three phase circuit argument on the previous thread! That would have nailed it I think.

Starjack · Feb 2, 2019

The Niceic should be listened to more than bs 7671 as They are more important and will end up running everything eventually anyway.

Rpa07 · Feb 2, 2019

[ElectriciansForums.net] Adding circuits to a full DB

Starjack said:
The Niceic should be listened to more than bs 7671 as They are more important and will end up running everything eventually anyway.

You’ve been given the bucket of chum award for the ‘Most likely Bait Post’ of this Thread!
Congratulations, wear it well!
Edit - although that does look a lot like the chilli con carne I made last night!

Deleted member 9648 · Feb 2, 2019

markythesparky said:
There seems to be a marked difference in opinion on this thread than another similar one that I had argued before :

(Does this setup contravene any regs or is it ok? - https://www.electriciansforums.co.uk/threads/does-this-setup-contravene-any-regs-or-is-it-ok.167990/.

For the record, and you will see this from the other thread, I don't believe it compliant to lump circuits together. I asked the NICEIC about the relevant regs relating to this and they agree (albeit they don't write BS7671). My only regret is that I didn't come up with the three phase circuit argument on the previous thread! That would have nailed it I think.

Nobody is suggesting lumping circuits which should remain individual circuits together, but it is plain stupid to suggest a radial serving a single 13a socket would not be compliant 'lumped' onto a local ring circuit to gain a way. Of course 3 adjacent ways are required here, but my issue with this thread is that the option is being dismissed as a bodge without even knowing the configuration of circuits in the DB. Of course it would be a bodge with a cak-handed approach, but I'd hope a professional electrician could investigate the possibility of accommodating the clients wish for a compliant cheaper solution, and not just throw the toys out and walk away. Far from professional in my opinion.

Pete999 · Feb 2, 2019

wirepuller said:
Nobody is suggesting lumping circuits which should remain individual circuits together, but it is plain stupid to suggest a radial serving a single 13a socket would not be compliant 'lumped' onto a local ring circuit to gain a way. Of course 3 adjacent ways are required here, but my issue with this thread is that the option is being dismissed as a bodge without even knowing the configuration of circuits in the DB. Of course it would be a bodge with a cak-handed approach, but I'd hope a professional electrician could investigate the possibility of accommodating the clients wish for a compliant cheaper solution, and not just throw the toys out and walk away. Far from professional in my opinion.

Disagree with the first part of your reply WP

markythesparky · Feb 2, 2019

Pete999 said:
Disagree with the first part of your reply WP

Please elaborate....

Deleted member 9648 · Feb 2, 2019

Pete999 said:
Disagree with the first part of your reply WP

Are you telling me I'm suggesting just bang any circuits together to gain ways then? Or are you saying that a single socket radial connected as a spur at the source of a ring is non-compliant?

Pete999 · Feb 2, 2019

wirepuller said:
Are you telling me I'm suggesting just bang any circuits together to gain ways then?

No I'm saying if I understand your post that there is nothing wrong with adding a spur from the connection at the CU, ahh sorry I have just re read your post, and misunderstood the contents sorry Mate my bad.