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Electrical

Installing a power supply to my wooden shed

Anonymous user 28/02/2024 - 3.58 PM

I want to run 50 metres of 3-core SWA cable to my shed via a 40 metre underground plastic pipeline that has a 4" diameter. The additional 10 metres of cable is to allow me to bring each end of the cable into my house and shed for connection. I want the cable to power a kettle, a laptop and desk light. Occasionally, a vaccum cleaner. That's all. I've been warned about voltage drop when using 50 metres of cable. Please can someone tell me what cable thickness I should buy? 6mm, 10mm or 16mm? Many thanks Dawn Chilcott

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4 Answers

Anonymous user

6mm would be fine and give you a little headroom up to 6-7 Kw of continuous use. Still need to comply with additional , protection, earthing arrangements, potentially bonding etc etc. Get a sparks, he will probably welcome you doing a 50m dig and as long as it’s visible for inspection then jobs a goodun

Answered12 March 2021

Anonymous user

I certainly wouldn’t put in 6mm to do that job Use 10mm 2 core and earth stake it save yourself some money Only idiots use three core cos they don’t know what there doing

Answered22 March 2021

Alpha electrics

Rating: 5 out of 5

Craigavon

Personally I'd go 10mm cable. You can spike the shed but again I'd go 3 core cable and take earth from house supply. 10mm leave you safe proof for future if you decide to add an additional or more Electricial appliances. Hire a qualified electrician.

Answered30 March 2021

Anonymous user

Running 2 core or 3 core 6mm SWA is good for office equipment and ordinary usages. But having a 10mm SWA is more handy in the longer run as we tend to have more appliances or circuits so you will have more capacity to do this. This will need to be run from the house Consumer Unit to small garage consumer unit. All work you undertake must be fully compliant to BS7671:2008 and once completed the building inspector will check and test what you have done and if it passes they will issue the relevant part P certificate etc.

Answered2 April 2021