Wiring Advice for Garage RCD Needed

[Frankie79]

Hi all,

I am looking to replace a very old and rusty RCD unit with a modern day unit. The old unit is different to the new one and I would like to be 100% sure i have the wiring correct. The situation i need explained is this:

1. I have the mains coming into the unit
2. I have a 2 way socket which needs to connected.

I have attached a picture of the unit with some crude lines on it. To clarify the picture what i have is the following.

1. The mains live (red line at the bottom) connects to the bottom next the the Neutral
2. The mains neutral and earth go up the the bars at the top
3. The 4 way copper bar bridges the neutrals across the top. (Blue)
4. The 2 way socket mains live (red line coming in from the right) connects to the 32A unit
5. The 2 way socket neutral and earth connect to their respective bars at the top.

Can someone tell me if this is correct? As i said all i am doing is replacing the old unit as it was way past it's useable life.

Thanks,

Frank

 

[Geordie Spark]

Someone call the grammar police please! Similar to/different from.
Never mind the electrics!!!!!

Nee Nor Nee Nor ....... what seems to be the trouble sir?? :bobby:

 

[Deleted member 9648]

Quite frankly the OP has asked a question....Why?...because he's not sure. Unlike many threads on here he's not claiming to be a 'qualified electrician' and then posting a muppet question.
And unlike most on here I dont have a problem with DIY and materials being available to all.....most who do are a bunch of hypocites in my experience,it comes down to a 'not in my back yard' mentality.
All the OP needed telling was that he is out of his depth,and the dangers and legality of what he is doing. There was no need for the abuse and sarcasm, with the notable exception of 1shortcircuits input and a few others , reading through this thread I'm almost ashamed to be associated with this forum.

 

[Taylortwocities]

As an after note.
In case your query is genuine.

I assume that you only hvae one piece of 2.5mm² cable going to your socket? If so that 32amp MCB is not the correct one. It can not be more than 20amp.

I suggest you take the whole thing back to where you bought it and have a registered electrician supply, install, test, certify and notify the correct materials.

 

[AP Electrical]

Quite frankly the OP has asked a question....Why?...because he's not sure. Unlike many threads on here he's not claiming to be a 'qualified electrician' and then posting a muppet question.
And unlike most on here I dont have a problem with DIY and materials being available to all.....most who do are a bunch of hypocites in my experience,it comes down to a 'not in my back yard' mentality.
All the OP needed telling was that he is out of his depth,and the dangers and legality of what he is doing. There was no need for the abuse and sarcasm, with the notable exception of 1shortcircuits input and a few others , reading through this thread I'm almost ashamed to be associated with this forum.

The guy didn't help himself did he, and why are you almost ashamed of other peoples views on this forum, I dont come on here to conform with everyone else's opinion, theres not many forums where people don't get jabbed for posting silly questions electrical or not.

 

[Guitarist]

Never really understood why BG put the 32A in a garage unit, rather than a 16A. I rarely come across garages wired with an RFC.

 

[Amp David]

Come on guys, that picture has the lines in the correct positions, can't see whats wrong

 

[Geordie Spark]

Quite frankly the OP has asked a question....Why?...because he's not sure. Unlike many threads on here he's not claiming to be a 'qualified electrician' and then posting a muppet question.
And unlike most on here I dont have a problem with DIY and materials being available to all.....most who do are a bunch of hypocites in my experience,it comes down to a 'not in my back yard' mentality.
All the OP needed telling was that he is out of his depth,and the dangers and legality of what he is doing. There was no need for the abuse and sarcasm, with the notable exception of 1shortcircuits input and a few others , reading through this thread I'm almost ashamed to be associated with this forum.

Nail on head.

Some of the comments I've been reading have made me cringe a bit and I think it's worth remembering that the "Big Orange Sheds" don't just sell electrical stuff to DIYers ... they also sell them plumbing stuff too, and I wonder how many sparks have bought some bits of pipe & fittings from there & attempted to install a bathroom suite, kitchen sink or an extra central heating radiator for themselves without really knowing what they are doing.

 

[telectrix]

but you're not generally liable to kill yourself getting a leaky joint in a bath tap

 

[Guitarist]

I think that the only thing you can really liken electrical work to is gas. I realise that as a % of the population, not many people are electrocuted, particularly with the introduction of RCD's, but there are a great many electrical fires each and every year. We have become very complacent as a nation regarding the dangers of incorrect or poor electrical work, so it's no wonder many people think that it's simply a matter of wacking a few wires in and if it works "job's a goodun".

 

[Swicade]

Totaly agree some of the comments where more than alittle sharp and out of order.

The main problem with the original pic was the busbar connection as it was drawn connected over the L & N of the RCD (although it was drawn in blue OP did state it was the busbar and not neutral cables).

Regarding the big orange shed etc, i still (and always will) have issue's with them being allowed to sell equipment to the DIYer encourageing them to play around with the most dangerous thing we use every day. I also have issue's with them selling plumbing gear in truth (and yes i have bought from there on a sunday when wholesalers are shut making me a hypocrit)..........Try and buy a gas fitting in there though and your stuffed as they dont sell them (last time i checked) due to safety issue's...go figure.

 

[plugsandsparks]

The guy asked if it was correct and was told "no" and was reminded of the law.

He then proceeded to complain that he was not getting a spoon fed answer from this forum. That when i added my penneth.

I dont have a problem with DIYers blowing themselves up. I dont do much domestic anyway.

But are we really here to assist absolute novices to change a CU in a garage, you cannot be serious.

 

[Amp David]

We can't have it both ways can we.

One minute giving advice and suggestions then the next moaning that all the Electrical Trainee and DIYers are taking all the domestic work from us.

I'll just stick with moaning about the latter I think.

 

[Guitarist]

And to be fair to all the members who were a little sarcy, it is getting far too common on here to read the words, "my mate who is qualified is going to come and test it".
If (and I mean if) these people have mates who are qualified electricians willing to come out to test and notify work, then surely they would be just as happy to spend an extra 20 minutes making the connections correctly and safely.

 

[Geordie Spark]

but you're not generally liable to kill yourself getting a leaky joint in a bath tap

I agree with you totally here Tel

When I made my post, I was in a rush to attend an appointment with my GP & in my haste I didn't quite finish it before posting it.

Had I done so, I would have tried to qualify it with words to the effect that had an electrician bought his plumbing bits from a "shed" then asked on a plumbing forum what to do with them, would he have been happy to receive the amount of ridicule and abuse that some of us her have dished out?

 

[Guest111]

As some people have said it,s not the fault of the diy stores for selling the kit,lets be honest I bet we have all been into one for something when we have been stuck late at night or on a sunday and been greatfull for the fact that they were open!The problem seems to be that they make it all sound so easy to carry out the work and that coupled with people not knowing their own limitations is where the problem lies.There has been various comparisons made with other jobs gas fitting, mechanics etc and people say that they would not touch gas or do the brakes on their own car,well that is about knowing your limitations.I have installed my own gas cooker and moved gas pipes at home,however I have the test gear and was taught gas fitting by my father,I know its safe and tested and feel confident doing it,likewise I carry out all my own car repairs,brakes and steering included,again I did a nightschool course on vehicle maintenance.TBH I have seen so much dodgy work come out of garages that I feel safer doing my own work,at least I know its right and that the wheels are not going to come off at 90mph,that said I appreciate that not everyone is like me or had my upbringing.THE KEY HERE IS FOR EVERYONE TO KNOW THEIR LIMITATIONS!excuse capitals but I wanted that bit to stand out.