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Discuss Power from Summerhouse to shed in the Electrical Forum area at ElectriciansForums.net

davesparks

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OK, thanks - that might be the way to go then. Shame really as I would have liked to have given it a go. Thanks alot to everyone for the help and advice though.
Electricity isn't really a sensible thing to 'have a go at' as getting it wrong can easily start a fire, cause you serious injury or even death.

Statistically a tiny number of DIYers die from their having a go at electrics, but would you like to be person who contributes to that statistic?
 
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Midwest

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OK, thanks - that might be the way to go then. Shame really as I would have liked to have given it a go. Thanks alot to everyone for the help and advice though.
I’m a member of another forum, nought to do with electricians. I read regular posts about doing electrical work in members own homes. One recently, where guy wanted to run a supply to his own shed, to include some machines. Gave him similar advice to you, albeit he was going to install and get ‘an electrician in to sign off’. I got criticised for my advice. I don’t know what it is about electrics, but some say it’s only dragging in some wires etc.

For what it’s worth, I’m an electrician, but no longer have the latest accreditation, having closed my business. I will need some electrical work done that will need notifying to LBC.

I’ll be getting in an electrician :)
 

Pete999

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Hello all,

I have two wooden buildings in the garden, one is our summer house and the second is a kids playhouse that has been converted into a rabbit hutch. I'd like power and lighting for the rabbit hutch, taken from the summer house, which has its own consumer unit in it with one spare breaker.

I have bought all of the bits that I think I need, mostly on the advice of an electrician at work but I am a bit unsure how all the parts go together, so here I am.

The plan is to run armoured (2.5mm2, 3 core) cable out of the summer house consumer unit, through the floor of the summer house, underground to the rabbit hutch and in through the wall (high up, where they can't chew anything), into a junction box. The junction box will serve 1) a double socket; 2) a pull cord for a light; and 3) a lantern, mounted on the outside wall of the shed.

Aside from the cable and the clips, I have the following:

1 X junction box
3 X plastic glands
2 X armoured cable brass glands with banjo earth tags and PVC shrouds
1 X lamp holder
1 X pull switch
1 X double socket (plastic)
1 X outside lantern

So, I assumed that the two brass glands would be used: one out of the consumer unit in the summer house and one into the junction box in the hutch. Then the three plastic glands would be used to go from the junction box to:

a) the pull switch for the light
b) the double socket
c) the outside lantern

The consumer unit has its own RCD and the hutch is about 15M away. I'll connect the live of the armoured cable to the spare breaker in The CU and then the E and N will go to the rails.

I could do with some help on wiring this in, and I will draw up a wiring diagram soon. Is this something that you guys would be willing to help me with?

Thanks,
Nick.

P.S. If you think this is beyond a DIYer and don't want to help, just let me know.

View attachment 56504
What about the FCU for the lighting point? Perhaps your friendly Electrician had a brain fert, plus some wiring for the socket and lighting inside and the outside lantern
 
  • Thread Starter Thread Starter
  • #22
Okay, thank you all again. I think to reduce costs, I will run the armoured cable into both buildings, clip it in place and fix all of the necessary boxes, switches and lights and then get a professional in to join everything up.

Anyone have any idea how much it would be? Ballpark or from to would be good.

Cheers,
Nick.
 

Pete999

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Okay, thank you all again. I think to reduce costs, I will run the armoured cable into both buildings, clip it in place and fix all of the necessary boxes, switches and lights and then get a professional in to join everything up.

Anyone have any idea how much it would be? Ballpark or from to would be good.

Cheers,
Nick.
good luck with that idea Nick
 

davesparks

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Okay, thank you all again. I think to reduce costs, I will run the armoured cable into both buildings, clip it in place and fix all of the necessary boxes, switches and lights and then get a professional in to join everything up.

Anyone have any idea how much it would be? Ballpark or from to would be good.

Cheers,
Nick.
don't cut the cable off too short if you are pre-installing it, you don't want to have to replace it all because you cut it too short.
And leave the last few cleats off of the armoured so that the electrician can actually move the cable to terminate it properly, otherwise they will be removing the cleats you have fitted to try to save time on the job.
 
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  • #25
don't cut the cable off too short if you are pre-installing it, you don't want to have to replace it all because you cut it too short.
And leave the last few cleats off of the armoured so that the electrician can actually move the cable to terminate it properly, otherwise they will be removing the cleats you have fitted to try to save time on the job.
Thanks, yes - that's what I'll do, I've got about 5 metres more than I need. It should save lots of time for the electrician and more importantly it will give me something to keep occupied with.
 

davesparks

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Thanks, yes - that's what I'll do, I've got about 5 metres more than I need. It should save lots of time for the electrician and more importantly it will give me something to keep occupied with.
Don't underestimate how quickly an electrician can install cable compared to you, most would ask you to dig the trench for them anyway as nobody wants to do that bit.

Get an electrician on board before you start though, they will want to make sure that the cable route is suitable and that the trench is deep enough and correctly backfilled.
 

Pete999

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don't cut the cable off too short if you are pre-installing it, you don't want to have to replace it all because you cut it too short.
And leave the last few cleats off of the armoured so that the electrician can actually move the cable to terminate it properly, otherwise they will be removing the cleats you have fitted to try to save time on the job.
Subject to you persuading an Electrician, to come and finish off and test someone else's work.
 

davesparks

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Subject to you persuading an Electrician, to come and finish off and test someone else's work.
I don't think many of us have an issue with a customer digging their own trench and putting the armoured in it along with clipping it, subject of course to discussing it beforehand.

and of course the current shortage of work may have a bearing.
 
Digging a trench for the cable is the hard physical work part, obviously!

Not sure what folk would advise on the depth for a garden, best to speak to whoever is going to finish and sign-off on the work. Usually it would need to be at least 45cm deep, but maybe more if there is any chance of someone wanting to put in a washing dryer thing, etc, in that area that might go deeper. Best practice is to put some "warning buried electrical cables" tape over the first covering of sand/soil so anyone digging in the future sees that first, but for a garden with it between two known and obvious point that might not be needed. Any comments?

If the ground has lots of sharp stones, etc, that could possibly damage the cable over time and settlement you might need to put several cm of sand below/around/above the cable, but just look at the soil when you dig a bit up and see.
 
Just to add to the advice of leaving plenty of SWA cable ends to work with: I would always tape up the ends of any cables (SWA, coax, whatever) to stop water getting in!

Either while handling it and it going in to a muddy puddle, or rain later, or just moisture absorption long-term if the job gets put off for several weeks or cable stored in damp shed, etc.
 
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