Power To Garden Shed

[satnav10000]

I hope this question is in the correct section.
I am going to run a 1.5mm 3 core flex from my garage to a timber shed in 20mm plastic conduit distance approx 2ft.
My query is should I take the conduit into the shed via a 22mm hole or stop conduit at shed outer surface and pass flex through a smaller hole, I will seal gap in both cases with mastic.
This is to allow for expansion/contraction of timber due to ambient weather conditions.
The garage supply is rcd protected.

 

[motorbiking]

Can you mount a weatherproof junction box on the outside? You'll need a fused spur at the house end if this is coming off the ring.

 

[conny]

What are you proposing to run off the supply once you have it in the shed and are you fitting any sockets/lights?

 

[satnav10000]

Thanks for your reply's, what I am unsure about was the possible movement of the timber due to temperature changes etc of the timber.
I am not sure if a firm mechanical fixing was ok.
I am to use the supply for a florescent light and a single socket to power hedge cutters.

 

[Notch7]

there should be a overload protection at the garage end -rated at less than the cable.

1.5mm is very small for a supply cable. flex is not really suitable for a fixed install

 

[JohnW2]

.... flex is not really suitable for a fixed install

It seems fashionable to say that, but can you provide any real 'explanation'? For some purposes, particularly outdoors, rubber-sheathed flex would seem preferable to PVC T+E.

Kind Regards, John

 

[motorbiking]

Weatherproof external flex is preferable to internal T&E. You could just stick a plug on the end. And put a external socket on the outside wall of the house.

 

[charliegolf]

Why is no-one shouting, "No! Use SWA!" at the OP? It's clearly not a must? I'm currently constructing a grill area and asked a Q about taking a feed from the SWA to my shed (Thank you TTC for replying). I have an outside socket, would I be wrong to run weatherproof flex in a conduit to the grill area instead?

Thanks

CG

 

[EFLImpudence]

I am going to run a 1.5mm 3 core flex from my garage to a timber shed in 20mm plastic conduit distance approx 2ft.