adding to a mcb

[amckay]

Is there anything wrong with this scenario.
Customer wants two extra socket about 2m from each other, first one being 400mm from consumer unit.
No spare ways on CU, nearest outlet on rfc is 5m away.
Is it possible to just add a radial fed from the MCB which feeds the rfc for that floor?
I'm thinking its just bad practice to do so but can find info in osg.
MCB rated at 32A and protected by 30mA RCD.

 

[Octopus]

So how would this scenario vary that much from a lollipop ring in theory??

I'd venture to suggest that the dear old lollipop circuit is quite different, sure its 2 different cables but importantly only 1 cable at the MCB!

 

[davesparks]

So how would this scenario vary that much from a lollipop ring in theory??

It's completely different!

The lollipop thing is a radial feed which splits in to a ring at it's far end.

The scenario here is a spur from a ring with another spur taken from that, all in 2.5mm

 

[Pete999]

So how would this scenario vary that much from a lollipop ring in theory??

Different scenario, the should we add a 4mm radial to a 32 amp ring final in my opinion NO

 

[davesparks]

Different scenario, the should we add a 4mm radial to a 32 amp ring final in my opinion NO

The OP is not talking about 4mm, has has installed this in 2.5mm as he has stated more than once

 

[Deleted member 26818]

How about using two 2.5mm cables instead of the single 4mm?

 

[davesparks]

What 4mm?

 

[Deleted member 26818]

The 4mm that Was suggested some time ago.

 

[Octopus]

97 posts FFS

I'm off to the plumbers forum!

 

[SPARTYKUS]

Just going back to the regs and deviating from what is "in" them, I do see both sides.

however. There are perfectly plausible ways to do things that aren't in there.

like.


running a socket radial circuit in 6.0mm2 on a 40 amp MCB. One double socket per MCB.

Cant come up with a really great reason why you would want to (except on a temp supply board maybe) but equally there is nothing wrong with it

 

[davesparks]

There is nothing wrong with deviating from the regs at all if you design it properly.

But the OP was asking if his 2.5mm spur on a spur complied with the regs, answer- no.

 

[Silly Sausage]

97 posts FFS

I'm off to the plumbers forum!

They'd just all agree to whack it all on a bit of 1.5 and end of thread! :smilielol5:

 

[rich.250]

I have seen 4mm Spurs taken from sockets to feed a couple of sockets numerous times and I don't see an issue providing the socket is capable of housing such cable as all CCC are fine. Yes it's not conventional and I. Appendix 15 but neither is a lollipop ring.
As for it being in 2.5 it's a no on a 32. If clipped direct maybe down rate to 25?? If max load allows this.

 

[Guest55]

lol , this thread is pure comedy gold.

clearly there are 2 camps ;

those whom only do what a book tells them to do

those whom are prepared to utilize non standard wiring arrangements that are comparable in terms of operation and safety to what the book says.

 

[Prat P]

lol , this thread is pure comedy gold.

clearly there are 2 camps ;

those whom only do what a book tells them to do

those whom are prepared to utilize non standard wiring arrangements that are comparable in terms of operation and safety to what the book says.

only after a number of years on the job is a spark able to accurately design his own circuit distribution,until you are fully confident it is best to stick to the regs / o.s.g for guidance.

 

[Deleted member 9648]

lol , this thread is pure comedy gold.

clearly there are 2 camps ;

those whom only do what a book tells them to do

those whom are prepared to utilize non standard wiring arrangements that are comparable in terms of operation and safety to what the book says.

Bang on Biff......my next rod is going to be 2ft long with an Ra of 500 ohms...fricken' RCD'll still go out wiv 1167 ohms to spare so whats the issue Eng? :death:

 

[Octopus]

Dare I mention the impending reg for non combustible CU's??

 

[amckay]

OK I'm incline to ask you what YOU would do if you came across my scenario but it was installed before you got there.
Leave it be? After all its a double socket installed 4ft up a faux chimney breast (for a TV) with t'other dbl skt installed on the side of the breast (he he he) (for games console & broadband).
Or rectify it?

While this thread has reached an enormous amount of replies, I shall look into a career in painting/decorating while you respond! Lol

 

[Prat P]

OK I'm incline to ask you what YOU would do if you came across my scenario but it was installed before you got there.
Leave it be? After all its a double socket installed 4ft up a faux chimney breast (for a TV) with t'other dbl skt installed on the side of the breast (he he he) (for games console & broadband).
Or rectify it?
all depends if your on day rate or price
While this thread has reached an enormous amount of replies, I shall look into a career in painting/decorating while you respond! Lol

all depends if its day rate or price?

 

[Deleted member 26818]

If I were to find such a situation whilst conducting an EICR, I would apply a code C2, and advise that either the cable be replaced with 4mm, or an FCU be installed.

 

[Silly Sausage]

Popcorn at the ready! :1eye:

How many boxes have you gone through?
I wasn't expecting over 100 posts and counting! :smilielol5::smilielol5::smilielol5::smilielol5::smilielol5:


I've currently got my new 5kW oven wired in on a 0.75 flex and plug onto my 32A RFC.
The 13A BS1362 is holding out quite well so far.

 

[Prat P]

How many boxes have you gone through?
I wasn't expecting over 100 posts and counting! :smilielol5::smilielol5::smilielol5::smilielol5::smilielol5:


I've currently got my new 5kW oven wired in on a 0.75 flex and plug onto my 32A RFC.
The 13A BS1362 is holding out quite well so far.

If that joker who was on watchdog last week wired your oven up,I'm sure it will be fine.

 

[Thewiz]

So let's see how many of you have wired 2 socket outlets from one for?

 

[Thewiz]

One fcu?*

 

[Deleted member 26818]

You know that you can just edit the first post?

 

[Thewiz]

I can now see that sorry

 

[davesparks]

You can put as many sockets as you like after an fcu

 

[Thewiz]

Sure I read some one say you can only have one socket per fcu

 

[davesparks]

You might have done, but it was wrong

 

[7029 dave]

You can put as many sockets as you like after an fcu

That is pointless IMO, because how long will that lot hold in, all on an 13amp fuse.

 

[Thewiz]

Yes true, but you add as many as the required load. I only add a max of 3.