Garage supply

[uksparks]

Hi,

i went ent to look at a job this morning where someone needs power to a remote garage in the garden, it's only about 8 - 10 meters away from back of house.

unfortunately it's not really feasible to run it on its own circuit for quite a few reasons, yet this would have been my preferred method.

is the general accepted method when coming off a ring to essentially create a lollipop circuit, so connect from ring to SWA back to small garage cy, is the accepted method just put a 13A FCU off the ring and run a bit of 2.5 swa to a garage cu?

obviously I'll check the zs and R1+R2 at point of spurring to calculate max length of spur.

is this what you would do if cannot get it on its own circuit? Or would you just spur off with 4mm and take that direct to a garage cy without the 13a FCU?

 

[Octopus]

You do what is safe!

 

[TJ Anderson]

Hi,

i went ent to look at a job this morning where someone needs power to a remote garage in the garden, it's only about 8 - 10 meters away from back of house.

unfortunately it's not really feasible to run it on its own circuit for quite a few reasons, yet this would have been my preferred method.

is the general accepted method when coming off a ring to essentially create a lollipop circuit, so connect from ring to SWA back to small garage cy, is the accepted method just put a 13A FCU off the ring and run a bit of 2.5 swa to a garage cu?

obviously I'll check the zs and R1+R2 at point of spurring to calculate max length of spur.

is this what you would do if cannot get it on its own circuit? Or would you just spur off with 4mm and take that direct to a garage cy without the 13a FCU?

You are an apprenticed sparks aren't you?????

 

[uksparks]

You do what is safe!

Obviously, I was just wondering what most people do. Usually where it can't be run on its own circuit, I just take it through a fcu, but just wondered if I'm missing a trick.

 

[Octopus]

I saw an installation once where the downstairs socket circuit had been "extended" to an out building. Not ideal!

 

[uksparks]

No it's not ideal, I certainly wouldn't do that. This one would be s right pain to get s new circuit in maky due to the route the cable would take, and there is a cost issue as I know that option is going to be too expensive, but to run it off the back wall through a fcu would work well, I guess if it was switched it could be used as s point of isolation for the garage. They only want to plug s sodding tumble dryer in, I think I'd be more enclined to find space in the house for it.

 

[turnitonagain]

no problem with 2.5 swa, providing loop is good ie. ze +r1+r2. and the ring circuit has rcd protection. only issue would be pain in the butt tripping of the rcd if the garage is liable to damp and moisture. [nuisance tripping] and you are protecting the spur with a fso.

 

[uksparks]

Is that the option you would take if not a dedicated circuit?

 

[SPARTYKUS]

Hi,

i went ent to look at a job this morning where someone needs power to a remote garage in the garden, it's only about 8 - 10 meters away from back of house.

unfortunately it's not really feasible to run it on its own circuit for quite a few reasons, yet this would have been my preferred method.

is the general accepted method when coming off a ring to essentially create a lollipop circuit, so connect from ring to SWA back to small garage cy, is the accepted method just put a 13A FCU off the ring and run a bit of 2.5 swa to a garage cu?

obviously I'll check the zs and R1+R2 at point of spurring to calculate max length of spur.

is this what you would do if cannot get it on its own circuit? Or would you just spur off with 4mm and take that direct to a garage cy without the 13a FCU?

As Murdoch said, do what is safe. It is entirely up to you, you are the artificer of this, no one else.


I would at the very least have it through a double pole fused spur but far from ideal, but often things are.

 

[turnitonagain]

why not? there is nothing bad about taking a fused spur from a ring main if the other option is too difficult. before you run the spur, measure the phase and earth resistance of the swa [easy done if you know the length of run, the phase will be the same as the earth in swa] you can check the values in the ie regs also. then add to the loop impedance of the ring main, which will include Ze, and bobs your uncle if your values are within the limits given in the ie regs. as you know when you plug in your loop impedance meter it calculates the entire loop back to the supply traffo.

 

[uksparks]

As Murdoch said, do what is safe. It is entirely up to you, you are the artificer of this, no one else.


I would at the very least have it through a double pole fused spur but far from ideal, but often things are.

i only ever use DP fcu's and sockets, I think I'll just put a fcu in, probably be the best option.

 

[uksparks]

why not? there is nothing bad about taking a fused spur from a ring main if the other option is too difficult. before you run the spur, measure the phase and earth resistance of the swa [easy done if you know the length of run, the phase will be the same as the earth in swa] you can check the values in the ie regs also. then add to the loop impedance of the ring main, which will include Ze, and bobs your uncle if your values are within the limits given in the ie regs. as you know when you plug in your loop impedance meter it calculates the entire loop back to the supply traffo.

I'll do him a quote based on this route and if he accepts I'll pop round and take a couple of measurements.

Like i say I usually just fuse it down and run it from there, it's a shame I can't run it all the way back to the CU, unfortunately thete are too many obstacles and obstructions let alone a Tarmac driveway and steps up to the front of the house in the way.

 

[trev]

So you're going to quote on the basis of a wet finger in the air and then take some measurements?
Good grief! Quote on the basis of what you know, do it properly because that way nothing can come back and bite you on the arse.
Quotes are binding, estimates are not.

 

[uksparks]

I mean estimate not quote, it says estimate on the top, I usually put that it's based on certain things and discuss it with them.

 

[SPARTYKUS]

Tarmac's easy to fetch off and then repair.

 

[Silly Sausage]

Does this help?!?!?!?!

http://electrical.------.org/wiring-matters/16/elect-inst-outdoors.cfm?type=pdf


You've got about 10 Millennia of amassed knowledge at your fingertips. Use it

 

[Sintra]

Omg....

 

[davesparks]

Grrrrrrrrrrrrrrr

 

[uksparks]

Before any more of you think I'm a total dim Witt who doesn't know how to connect a garage, I know how to do it any have done it countless times, I was just wondering how others do it and if im missing a trick.

thank you for the pdf it is one I already have though.

 

[Plonker 3]

Why do you need advice to run a spur off a RFC.?

Have you told your customer you sre unsure what you sre doing and going to seek advice on the internet?

 

[Knobhead]

I'm a total Dim Witt.

 

[uksparks]

Why do you need advice to run a spur off a RFC.?

Have you told your customer you sre unsure what you sre doing and going to seek advice on the internet?

I do know what I'm doing thanks. I question in post one was asking what everyone else does.

 

[Plonker 3]

I do know what I'm doing thanks. I question in post one was asking what everyone else does.

Really?

Hi,

i went ent to look at a job this morning where someone needs power to a remote garage in the garden, it's only about 8 - 10 meters away from back of house.

unfortunately it's not really feasible to run it on its own circuit for quite a few reasons, yet this would have been my preferred method.

is the general accepted method when coming off a ring to essentially create a lollipop circuit, so connect from ring to SWA back to small garage cy, is the accepted method just put a 13A FCU off the ring and run a bit of 2.5 swa to a garage cu?

obviously I'll check the zs and R1+R2 at point of spurring to calculate max length of spur.

is this what you would do if cannot get it on its own circuit? Or would you just spur off with 4mm and take that direct to a garage cy without the 13a FCU?

These 2 statements look like you are asking for advice to me, rather than a statement of intent.

 

[uksparks]

No not at all, I was just wondering what most people do? I have connected a lot of outbuildings and know what I'm doing, I was just asking what others did if there's an alternative that I'm not aware of.

Dillb, you always seem to twist everything, actually I do t think I r we recall seing a post from you that's not negative or twisting in some way.

 

[growler]

Hi,

i went ent to look at a job this morning where someone needs power to a remote garage in the garden, it's only about 8 - 10 meters away from back of house.

unfortunately it's not really feasible to run it on its own circuit for quite a few reasons, yet this would have been my preferred method.

is the general accepted method when coming off a ring to essentially create a lollipop circuit, so connect from ring to SWA back to small garage cy, is the accepted method just put a 13A FCU off the ring and run a bit of 2.5 swa to a garage cu?

obviously I'll check the zs and R1+R2 at point of spurring to calculate max length of spur.

is this what you would do if cannot get it on its own circuit? Or would you just spur off with 4mm and take that direct to a garage cy without the 13a FCU?

Call an electrician mate get him to do it

 

[uksparks]

Clearly I better call one as apparently I don't know what I doing.

 

[GMES]

Clearly I better call one as apparently I don't know what I doing.

I am in no way having a go at you or trying to insult you uksparks but are you a time served Electrician, because I have got to be honest quite a few of your threads do worry me and they sound like the kind of things a knowledgeable electrician wouldn't need to ask.

We are all constantly learning in this job but I have noticed recently an alarming rise in people who say they are Electricians having to resort to the internet to get their answers.

 

[uksparks]

What have I asked that has caused you such concern?

 

[Plonker 3]

I think this thread needs locking before it gets out of hand

 

[Octopus]

I am in no way having a go at you or trying to insult you uksparks but are you a time served Electrician, because I have got to be honest quite a few of your threads do worry me and they sound like the kind of things a knowledgeable electrician wouldn't need to ask.

We are all constantly learning in this job but I have noticed recently an alarming rise in people who say they are Electricians having to resort to the internet to get their answers.

Or could it be that the standard of english being taught at school is at an all time low AND BS 7671 is written in jargon with too many possible interpretations??

 

[GMES]

What have I asked that has caused you such concern?

I don't think it is fair to start pointing out threads etc on the open forum, it was merely a question whether you were time served or new to the game nothing more nothing less mate, But reading back through the last page or so of replies I think Dillb may might be right.
I am going to close the thread just so it doesn't descend into a bashing session.
If you feel it shoudn't be closed feel free to send me a pm.