Garden pond wiring.

[Clumo]

Hi
I would like to install a pond with a pump and outdoor lighting, controlled from a weatherproof panel approximately 12 metres from the house. I have a power supply of 2.5mm 3core SWA cable to my log cabin which goes past this pond site.
Never having done this i'm wondering about the practicalities of installing an underground 3 way junction box to feed the control panel. There wouldn't be any slack in the cable (it's 18in deep) and maybe I would need 2 Junction boxes.
anyone had experience of this?

Many thanks in advance.

 

[securespark]

Nightmare. Why put an underground joint in when there's another way?

Take the supply from the nearest building.

 

[Chri5]

http://www.tlc-direct.co.uk/Products/SWJKT1.html

You can get three way ug.

As you say there might not be a lot of slack, having a two way joint and a three way joint as ug just adds to potential for failure.

What you suggest is do able subject to what the current load is at the log cabin v design.

2.5 mm swa radial is likely* rated at 20 amp, what sort of loads are you using in the log cabin?

* depending on distance, volt drop, installation method.

 

[Clumo]

By installing from the nearest building, do you mean i should put a second cable alongside the one that is already there? That would be a nightmare that I'm trying to avoid. I would have to take up 3.5m of block paving and move a raised bed plus disturb a few metres of established garden.
Maybe I haven't worked out all the details as I ought. What makes the underground j/bow such a nightmare

 

[Clumo]

Hi Chri5

Thanks for your input.

The total distance to the cabin is about 20m. Occasionally we use 2 2kw heaters plus a flat screen TV. most of the time it is 1 2kw heater + 1 100w light.

I'm trying to avoid starting this project if it is not practical (or legal) to do so.
I'm not an electrician, I would be employing one for the electrics but I would do the groundwork.