Adding a 2 way unit to a garage

[Mfctitch]

Evening everyone

I have been asked to price to add some more sockets and lights to a garage plus a few out side sockets.
now the garage already had a supply from the house via SWA cabling which just feeds a socket and the lights via a fused switched spur.
now the consumer unit in the house is an old "Ashley & Rock" with Supasafe MCB's. with blue writing if that helps the whole lot is protected with one main RCD.

Now for my question.
I know that I can fit just a 2 way unit but I was thinking that with more sockets and some of them outside it would be better to fit an RCD in the garage.
but I need this to trip before the house RCD trips so any suggestions would be great.

Thanks for all suggestions

 

[Engineer54]

Thanks again for your input

My hands are tied he does not want to pay for any changes in the house.

So as there does not seem to be away to add an extra RCD in the garage. It might be a case of leaving the whole house and garage protected by the main 63amp 30ma RCD and if something trips in the garden then the whole lot will trip.

Am I right so far?

He can't have what he is not prepared to pay for, so leave the system as it is and let the lot trip out!!

One thing, have you opened the house CU, i am just wondering if this may be a split CU where only some of the circuits are RCD protected?? You may have mentioned before, but can't be arsed to read back through so many posts !! lol!!

 

[Mfctitch]

Ha H a
Yes I have opened the cu and no its not a split unit.

 

[thomas-1981]

So you think the 2.5mm supplied by the 32amp mcb isn't needing attention?

 

[Octopus]

So you think the 2.5mm supplied by the 32amp mcb isn't needing attention?

Of this is a spur off a ring then this is in accordance with the regs! However having more than 1 item downstream isn't!

 

[thomas-1981]

I know what your saying, technically it is a spur. But come on it's a spur from a ring supplying a garage where he wants to fit a two way db.

 

[shocking_eg]

:smilielol5:

 

[Octopus]

I know what your saying, technically it is a spur. But come on it's a spur from a ring supplying a garage where he wants to fit a two way db.

To be honest I've lost the plot a bit on this one...... maybe the OP could summarise the basics again!

 

[thomas-1981]

LOL I think your right.

 

[Mfctitch]

You've lost the plot what about me

So what would you like to know?

And to answer Thomas-1981

My reasoning with the 2 way DB was that if I leave the fsu in place and come off of that with the 2 way DB I could at least tidy the circuits up and give the customer the sockets that he wants on the understanding that if he overloads the circuit then the 13 Amp fuse might go before the MCB trips.

I'm not saying this is right but my options are very limited and to be honest as long as its safe I would rather not lose the job. because he will just get someone else in who might well just fit the sockets and run.

Opinions as always very welcome

Ps I take it that no one has come up with a way of supplying an RCD just for the garage bearing in mind that the whole board is protected by and RCD.

 

[Octopus]

You've lost the plot what about me

So what would you like to know?

And to answer Thomas-1981

My reasoning with the 2 way DB was that if I leave the fsu in place and come off of that with the 2 way DB I could at least tidy the circuits up and give the customer the sockets that he wants on the understanding that if he overloads the circuit then the 13 Amp fuse might go before the MCB trips.

I'm not saying this is right but my options are very limited and to be honest as long as its safe I would rather not lose the job. because he will just get someone else in who might well just fit the sockets and run.

Opinions as always very welcome

Ps I take it that no one has come up with a way of supplying an RCD just for the garage bearing in mind that the whole board is protected by and RCD.

Seemingly no without extra costs so quote to leave as is and make sure that your quote points out the "issue" so they will only have themselves to blame for when tripping starts later on.

 

[wade88]

Read through this lot and come to the resounding conclusion.... it looks like the only solution is a short walk back to the main CU to reset RCD.

First world problems or what man....

 

[shocking_eg]

Read through this lot and come to the resounding conclusion.... it looks like the only solution is a short walk back to the main CU to reset RCD.

First world problems or what man....

That's if you even have any rcd tripping issues

If its not tripping now then I can't see it being much different with a 2way cu in the garage lol

No different than the existing setup !

 

[wade88]

Everyone likes a little drama.... lets make a problem, for fun?

 

[Des 56]

The initial question on page 1

my question.
I know that I can fit just a 2 way unit but I was thinking that with more sockets and some of them outside it would be better to fit an RCD in the garage.
but I need this to trip before the house RCD trips so any suggestions would be great.

Now 9 pages later.is that 15 per page?
If so we are up to 135 ish posts and it culminates in the following question
Ps I take it that no one has come up with a way of supplying an RCD just for the garage bearing in mind that the whole board is protected by and RCD.

It's kinda self satisfying to know that this forum sure doesn't lack perseverance
As for losing the plot,was there ever a plot to lose lol


Oh and by the way,it seems I have stuck with it till the end

 

[Mfctitch]

The initial question on page 1

my question.
I know that I can fit just a 2 way unit but I was thinking that with more sockets and some of them outside it would be better to fit an RCD in the garage.
but I need this to trip before the house RCD trips so any suggestions would be great.

Now 9 pages later.is that 15 per page?
If so we are up to 135 ish posts and it culminates in the following question
Ps I take it that no one has come up with a way of supplying an RCD just for the garage bearing in mind that the whole board is protected by and RCD.

It's kinda self satisfying to know that this forum sure doesn't lack perseverance
As for losing the plot,was there ever a plot to lose lol


Oh and by the way,it seems I have stuck with it till the end

Morning Des 56

Yes you and a few others have been very helpful and very persistent.

It does look however that the best I can do for this customer is advise him of the pit falls as has been suggested.
Cost the job with a 2 way board and fit the sockets and lights as he wants.
It is a shame that I can't find a way to fit an RCD for the garage sockets but as has been mentioned if he does not want the cost or the disruption then there is very little I can do.