Running power to shed

I wouldn't. I'd run armoured cable in the original conduit if I could. Even if no more than to have a house I wasn't ashamed to sell on, one day

Totally agree it was the way they did it. My parents 1968 built house had a detached garage with 2.5mm T&E (with a 1mm cpc) in hosepipe under the lawn.

T&E or singles in conduit is fine however I would just use SWA.

I suspect you'd struggle to get more than a few feet of SWA inside a hosepipe ...

Not along a fence, which isn't considered a permanent structure.

Along a wall is okay.

If you don't want to go underground, overhead cable on a catenary wire is ok.

Owain

That's an engineering decision.

Some fences are better than others.

Indeed...

Cable in proper conduit is ok, although I would be less keen on "top of the fence" bit.

Having said that, SWA is much simpler - since it in effect has its own conduit, and so less aggro.

I would probably clip it to the base of the fence, or for that matter lay it on the ground if its not going to be in the way of anything. Ideally bury it, but that may be impractical.

Might be worth looking at:

I have SWA routed along a solid (horse proof) post and rail fence. It's lasted 20 years already and survived one bit of fence collapse (the SWA helped it stay sort of in place while I replaced a couple of posts).

Horses quite like nibbling away at horizontal fence rails and tops of stable doors though :-(

Is there room in your consumer unit to fit it to a new RCBO?

So if/when it trips it wont take out other things, and easier to isolate it

My trouble is squirrels. We have a pressure pump for garden watering in its own little house attached to garage. A squirrel keeps his stash in there and for all I know hibernates in it also. When he wants a cheap thrill or all his nuts are gone he starts on the wiring for the pump. He's aggressive too. In the adjacent ditch there is hazel growing and if he sees you near it in the autumn when it is covered in nuts he runs down and hisses at you

They'll get quite a surprise when they nibble through the SWA. :)

Depends on the diameter. 16A stuff no probs. 60A stuff, you are right.

BUT the OP doesn't need to get it in more than a few feet - only where it goes under concrete paths etc.

LOL!

Yeah, Adam, we all know you went over an loaded up most of the Berlin wall in your van and erected it between you and your neighbour. Did you get planning permission for the machine gun post?

Bury the SWA with plastic marker tape above it, there is a legal minimum depth

count it as exercise

It's some horse if it can do that! Standard anti crib on doors is just thin galvanised sheet.

Yes there is. This is all sounding like it needs notification. Might be simpler to get a sparks in.

Adding an FCU is allowed and non-notifiable (yes?). Adding a new circuit for a shed is notifiable. Does that include adding cable to the other side of the FCU?

that'll teach them not to indulge in horseplay!

Horses are vicious violent bastards - no idea why Penelope wants one for her 15th birthday other than it has teeth that look like her mothers dentures that were used to replace the teeth the horse kicked out of her mouth.

Outside electrics are no longer classed as notifiable.

However installing a whole new circuit is. So something similar to previous (i.e. spur[1] from existing circuit) would not need notification.

Yes

A new circuit back to the main CU would be notifiable.

No, that's extending an existing circuit.

Since your house circuit likely already has 30mA trip RCD protection, then that is fine for the shed also. However if you are likely to be in there using power tools after dark, then it might be sensible to include a "non maintained" emergency light in the shed, just in case you trip something while still holding a "spinning down" machine.