-
Yeah, that's why I said possibly homeowners thread - I'll not be doing any electrics, but the knowledge seems a bit better on this thread.
It's about 17m. The CU is in the middle of the house. The reason not to route it either through the nearer kitchen or the ground outside is that neither are due to be worked on any time soon; the bathroom floor is due to be ripped up next month, this will give an easy run from the CU to the outside of of the house. My thought was to run this (CU-back wall - ground level) and then, as you say, bury the cable as I get it all dug over the following couple of months (it can poke out above ground for the last 4m until I can get that dug over)
Sound like a sensible plan?
It's worth noting that you may not need to bury the cable depending on what your garden looks like.
What would that look like? It might be possible to hide the cable in/under some fence panels. Is it just a case of using conduit if it's above ground?
1 Attachment
-
Polygon
-
A sparky will be able to advise for sure btw. And they'll be able to offer a schedule that works best for them - there's loads of options but the sparky will likely have a preference for the order of how the work is done.
If you want to run the cable as the bathroom is coming up, I'd get the spark to install the cable run from the consumer unit (but not connected up), through the bathroom and to the outside of the house and to just leave a coil long enough for your run to the shed, you can they bury it/lay it as you go. Not all sparks will be happy with you laying the cable yourself, so you'll need to speak to them and find an arrangement that works. Running it to a junction box to be connected later will be neater in the meantime, but may be more costly than just leaving a coil hanging where the cable comes out. They may also opt to run normal twin and earth cable to a junction box, and then only run armoured cable from the junction onwards. A lot of the details will pertain to the house, size of cable you need and what the cable run inside looks like, and ultimately the preference of the sparky.
Like SB has pictured, it's fine to just leave a coil of cable at the end. Clipping to fences is tricky - because the structure they're clipped to needs to have a lifespan that's expected to be similar to the cable, IE that the fence won't fall apart while the cable is still installed. SB's fence and posts looks pretty sturdy so the spark was obviously happy to clip the cable directly to that.
Whats the boundary on the top edge of the diagram?
Nef
Needs its own circuit, yes. Which is notifiable, so needs to be done by a sparky.
You could route the cable to a junction box, but be aware, the armouring of the cable needs to be earthed, so you need to make sure the outgoing cable from the box has the armouring earthed.
I don't quite get what the advantage of installing the cable to a box is before the ground works are ready. Why not just connect it after the cable has been laid?
Personally I'd just try and lay the cable in a oner. It doesn't need to be connected to anything at either end - just make sure you have enough length for what you need. You could also lay ducting, ready to pull the supply cable through when you're ready.
It's worth noting that you may not need to bury the cable depending on what your garden looks like.
How far is the shed from the house?