power in the garage

Joined
5 Dec 2006
Messages
87
Reaction score
1
Country
United Kingdom
Eh up sparkies

Bit of advice please
After putting power in the garage. Have a split load twin rcd protected CU.

If i wanted say 2 sockets and 2 4ft tubes in there what size cable would i need?

As the garage is almost touching part of the house at the back can i run a unarmoured cable to the underfloor from CU then connect armoured via JB and out through air brick under a 18 inch strip of concrete and terminate in a non rcd CU (as its connected to the CU in the house).

There is already an existing instllation in there that is jumble of odds and ends and looks pretty ropy. Looked at the armoured stuff and it has 5 cables which at best are 1mm. 2 twisted together for live and 2 twisted together for neutral. Guess the guy nicked some stuff from work that was armoured and made do.

I assume i need to run cable in steel conduit as well???
Thanks
 
Sponsored Links
Eh up sparkies

Bit of advice please
After putting power in the garage. Have a split load twin rcd protected CU.

If i wanted say 2 sockets and 2 4ft tubes in there what size cable would i need?

I am curious that if you have 'put the power in the garage' why are you asking about cable sizes for the sockets and lighting?
Surely you would have considered this as part of installation plan that led you to install the garage CU.
Given your obvious knowledge of how to install the garage CU - properly test it and complete the necessary LABC required EIC you really don't need our advice here, do you?
 
He might, if he's one of those ******** who doesn't see why ignorance and incompetence should be a bar to him fiddling with things he doesn't understand.
 
Sorry chaps that should read "Im after putting power in the garage".
The current installation doesnt look safe so i want to strip it out and start again.

Im hardly a numpty by the way.
So this forum isnt an advice forum its just for you to extoll the virtues of your brilliance for all who care to listen. I wish i was so up my own a*se.

Should this forum be renamed electrical UK - you aint up to it so dont ask?
You need at least a doctorate to even comprehend the theory of what us special people do.

Apologies for those who live in the real world. Ive always found Sparks to be helpful on site but i guess thats the difference -those that do and those that like to talk about it.
 
Sponsored Links
Hope you can see how that missing "I'm" was incredibly crucial.

But even so - if you think you're OK to install CU's, do all the calculations and testing, get the installation techniques right etc, then you would be way ahead of needing to ask the question you did.

Sorry - but the fact that you did ask it shows beyond any doubt that you are not competent to be doing the work you're after doing.

As with the rest of your house, you need to get an electrician.
 
Sorry chaps that should read "Im after putting power in the garage".
The current installation doesnt look safe so i want to strip it out and start again.
Is this one you bought and installed earlier or is the one that the mortgage company have said needs to be replaced before you get the rest of the mortgage.

Stanna, your questions and proposals simply highlight that you are totally out of your depth. Your general lack of knowledge and inexperience is clear from your previous posts. As is your refusal to consider the advice you have been given on a number of occasions from forum members.
For example you were advised to get an Electrician in to conduct an EICR before you do anything - but you went out and bought a dual RCD consumer unit for £40?
You have already been strongly advised by the plumbers regarding gas safety - you didn't take too kindly to that - well I am going to give you similar advice - please get an electrician in to sort out this mess before something seriously goes wrong.
 
Well why dont the mods close this forum and just have Electrics UK - get an electrician!

Ive re-wired at least 5 houses before part P came and always got someone to check it. That someone being a wiring inspector for what was Norweb. Never found a fault other than id missed a grommet or 2.

My reasons for asking are due to changes in the regs. And i will admit ive never put power to a garage before.

I refurb houses and have a few buy to lets.
My first required a new gas pipe and as part of the deal the old lead gas pipe needed replacing with copper. The firm i bought the house from (it was taken in part exchange) sent a CORGI (as it was then) gas fitter to do the job. Nice shiny van with a grands worth of a paint job extolling his emminent qualifications in gas fitting ie CorGI.

3 days later and having got out the gas board to a smell of gas i was informed that this proffesional had fitted an obsolete part on the meter and left a hose on that was split.

Fortunately the house was empty as i was rewiring it.
Everyone can have a bad day. I like to look after my own.

Note the news today where a proffesional has been charged over a gas explosion that injured 15! Feel sorry for the bloke personally but...

Proffesional - only as good as your last job!
 
on the £40 Cu

It was installed by a sparks and i now have the money for the rest of the loan as the bank approved the work. As this will be rented out i insist that they have RCD protection and rewired so i have lost out how exactly??????
 
Well why dont the mods close this forum and just have Electrics UK - get an electrician!

Ive re-wired at least 5 houses before part P came and always got someone to check it. That someone being a wiring inspector for what was Norweb. Never found a fault other than id missed a grommet or 2.
Excellent. Well there is no difference between a house and a garage in terms of calculating cable sizes for sockets and lights.
Surely you calculated the cable sizes etc when you rewired those five houses.
In which case you are clearly a professional with a wide range of experience (this is a DIY forum by the way) and really don't need to ask us about cable sizes do you?
 
Why is everyone always so negative on this forrum? Chill out and relax everyone - if the guy has a simple question, why can't it just be answered? Why does it have to be kept a secret?

And Stanna, I've not really ready many of your posts, but if you really don't understand electrics and/or don't know what you're doing, then please ask a qualified electrician to come over to have a look as you could easily kill yourself or others and it is a very serious thing if you do that.

I've also seen it before myself, a so called professional who does things wrong too and charges the earth to make mistakes - after all we're all human! But at least in this situation, you'll have him/her to blame.

An exapmle of this is the fully qualified, part P all singing all dancing electrician who fitted an 8kw electric shower using 2.5mm t&e (connected to a 13A junction box splitting an existing ring final circuit) in a house I bought. I checked the paper work and was disgusted by the work - the elderly lady who lived there before I bought the house obviously had no idea of how the shower should have been installed and so would have paid this reckless idiot for this death trap!

Answering the original question:

Sockets - 2.5mm Twin and Earth, protected by a 20A MCB (Radial circuit) or a 32A MCB (Ring final circuit).

Lights - 1.5mm Twin and Earth, protected by a 6A MCB.

But please, if you haven't rewired houses like you said Stanna or don't understand how electrics work, then please ask an electrician, it is very dangerous if you don't.
 
Why is everyone always so negative on this forrum? Chill out and relax everyone - if the guy has a simple question, why can't it just be answered? Why does it have to be kept a secret?
Answering the original question:
Sockets - 2.5mm Twin and Earth, protected by a 20A MCB (Radial circuit) or a 32A MCB (Ring final circuit).
Lights - 1.5mm Twin and Earth, protected by a 6A MCB.
If I may say so this is the standard house basher answer that makes massive assumptions about information that has not been given and simply illustrates your lack of understanding on circuit design. What about insulation, cable protection, voltage drop, RCD protection and maximum demand etc? What about testing and certification?
If you consider that negative then so be it - but contrary to your expectations there isn't one rule for the diyer electricians and one rule for the professionals.
This OP has stated he has rewired five previous houses - aren't you the slightest bit worried that if he has completed these tasks before he should be fully aware of how to calculate maximum demand and cable sizes.
 
Why is everyone always so negative on this forrum? Chill out and relax everyone - if the guy has a simple question, why can't it just be answered? Why does it have to be kept a secret?
Answering the original question:
Sockets - 2.5mm Twin and Earth, protected by a 20A MCB (Radial circuit) or a 32A MCB (Ring final circuit).
Lights - 1.5mm Twin and Earth, protected by a 6A MCB.
If I may say so this is the standard house basher answer that makes massive assumptions about information that has not been given and simply illustrates your lack of understanding on circuit design. What about insulation, cable protection, voltage drop, RCD protection and maximum demand etc? What about testing and certification?
If you consider that negative then so be it - but contrary to your expectations there isn't one rule for the diyer electricians and one rule for the professionals.

and im sorry to say that you're obviously someone who never really made it in life aren't you? - someone who's apparently an electrician but is never out on any jobs and is instead always on this forum telling others that they dont have a clue about xy or z. You sure you're not just some geek still living with his parents? Someone who has the time to read up on Part P regs and is just pretending to be an electrician? Someone who doesn't really have any proper experience and so if anyone asks a slightly taxing question, you have to refer back to your standard answer of employ an electrician?????? i have my doubts!

So tell me, how do you manage to make a living as an electrician even though you're never out on any jobs because unless you're someone very special, someone who can defy every law of physics and be in 2 places at the same time - ie a job and on the internet answering every question with ur standard answer of ur thick pay an electrician to do everything?????????

stop trying to kick up a fuss and trying to make it out to be more technical than it is we both know it isn't !

And as a footnote, what about your massive assumptions? How do you know the OP hasn't already got plans to test? And can't you read, he says he insisted on RCD protection??????!!!!!!!!!!

And contrary to your belief, as I already illustrated in the example above, there are some (NOT all) unscrupulous electricians out there who even though they are apparently 'competant' CANNOT do the job themselves!!!!!!

This OP has stated he has rewired five previous houses - aren't you the slightest bit worried that if he has completed these tasks before he should be fully aware of how to calculate maximum demand and cable sizes.

Again, didn't you read what he said? He said he's already done 5 rewires a while back and is not sure about hte current regs and so was asking for clarification......!
 
and im sorry to say that you're obviously someone who never really made it in life aren't you? - someone who's apparently an electrician but is never out on any jobs and is instead always on this forum telling others that they dont have a clue about xy or z. You sure you're not just some geek still living with his parents? Someone who has the time to read up on Part P regs and is just pretending to be an electrician? Someone who doesn't really have any proper experience and so if anyone asks a slightly taxing question, you have to refer back to your standard answer of employ an electrician?????? i have my doubts!
Perhaps you were looking in the mirror when composing this vitriolic rant.
Just for completeness, I should mention that you yourself suggested twice that the OP should call an electrician - so clearly you also have doubts about this abilities.
So tell me, how do you manage to make a living as an electrician even though you're never out on any jobs because unless you're someone very special, someone who can defy every law of physics and be in 2 places at the same time - ie a job and on the internet answering every question with ur standard answer of ur thick pay an electrician to do everything?????????
Oh Dear you do appear to be having a trantrum.
By the way I haven't called anyone thick although its 'your' not ur.
As for being in two places at once - well I think quantum mechanics is a bit out of your celebral range so I wont go there - but I achieve this by managing my resources effectively and profitably thankyou very much. In addition as a member of a competent persons scheme I also do EICR work for clients and solicitors on the properties for sale. Given the time of your post, I could ask you the same question but to be honest I'm not interested.
stop trying to kick up a fuss and trying to make it out to be more technical than it is we both know it isn't !
Well clearly you seem to think there should be different standards for the diyer and the professional - you are entitled to your opinion - and while your may have very low standards I don't - so expect to be challenged when you make statements without having considered all the issues involved. Furthermore since we have to show how we determine our calculations perhaps you could demonstrate here how you arrived at the cable sizes you did.

And as a footnote, what about your massive assumptions? How do you know the OP hasn't already got plans to test? And can't you read, he says he insisted on RCD protection??????!!!!!!!!!!
Not assumptions, questions really. Drawn from having read his previous posts, his highly colourful language when challenged over how and why he is doing things and especially when he openly asks how he can flout building regulations. Something with which you are not averse to do yourself I note - you did complete an EIC, conduct the appropriate tests and notify your LABC over that shower installation didn't you?
Not sure how your reference to the OP insisting on RCD protection demonstrates anything. Circuit design will demonstrate the need or not for RCD protection.
And contrary to your belief, as I already illustrated in the example above, there are some (NOT all) unscrupulous electricians out there who even though they are apparently 'competant' CANNOT do the job themselves!!!!!!
If you have an evidence to support this claim then why havent you reported them to the competent persons scheme that they are registered with.

Again, didn't you read what he said? He said he's already done 5 rewires a while back and is not sure about hte current regs and so was asking for clarification......!
Yes, thankyou I did read that, I actually told you about it as well. But from his previous posts this OP has already partially rewired this house, he even bought the Consumer Unit he needed so why does he need clarification of cable size?
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Back
Top