quick n dirty

[festive]

Running power (240v) supply up tree to light. Does this supply have to be SWA or can it be flexible conduit with T&E cable.

Thanks!

 

[PrenticeBoyofDerry]

It will have to be suitable for the environment it is installed, you will have to take provision for tree grow not damaging the cable

 

[charliegolf]

Jumping on this one for a freebie...

Is there a flex suitable for such a job- thought I had read as such? Ta.

CG

 

[ericmark]

30 meters of flexible conduit is cheap enough £3, and glands cheap at £2, adaptable box or conduit box etc. again cheap enough, however you would not want to use a flat cable, although you can get special glands to seal on oval cable, 90% are designed for round cable, and if outside needs to be black to resist UV light and as long as the cable is reasonably protected it does not in real terms matter that much what cable is used, although we would normally use a tough cables, trees move, and it may be better to use flex, not tight of course it needs to move without causing strain. Of course RCD protected but use common sense, you don't want the cable strained as the tree moves in wind or grows.

 

[festive]

Thanks for your input people, just adding after doing a bit of research i see trees grow outwards not upwards (may be obvious to some!), so you have more chance of your clips being swallowed than the cable being stretched, i stand to be corrected here.
Hmm on reflection yes it's almost easier as you say to run SWA straight into boxes with glands. Didn't think about non round cable into gland, detail like that i missed.
Although i was just going to use 20mm female connectors onto the end of the flexible conduit to connect to my ip rated junc box, not as weather proof as glands i agree.

 

[JohnW2]

Thanks for your input people, just adding after doing a bit of research i see trees grow outwards not upwards (may be obvious to some!), so you have more chance of your clips being swallowed than the cable being stretched...

I think what you probably mean is that the upward growth only occurs at the top, whereas outward growth occurs throughout the length. If there were no 'upward growth', we would have pretty small trees

To be a little more serious, I have seen a situation in which, after many years, not only the clips but entire lengths of cable had been 'swallowed' by a tree.

Kind Regards, John

 

[Lectrician]

Trees do swallow things clipped to the them!

https://www.diynot.com/diy/threads/twin-earth-in-tree-pic.460600/

 

[John D v2.0]

Trees do swallow things clipped to the them!

https://www.diynot.com/diy/threads/twin-earth-in-tree-pic.460600/

Just to save anyone's time, I read the whole thread, turned out after the first post or two it was all terrible tree puns

 

[festive]

Funny though