power to shed!

[assegayer]

Hi guys I have a mate who wants one socket and light in his shed, luckily theres a socket in the house where i can drill through the wall and spur to the outside to wack a wiska box on ..then from there to the shed in 2.5mm swa 3 core buried 400mm...but only thing thats in my head is that how can I get the supply for the lights as i cant take another spur from the socket that im going to put into the shed as it would be classed as a spur off a spur into a fcu or should i just use 2.5mm for the light aswell?.....also can normal sockets and switches be used in a wood shed or would waterproof im slightly towards waterproof just to avoid any problems...oh yeah and the ring im spuring off from the house is rcd protected

thanks guys!

 

[Andy78]

Yes, agree but we don't expect everyone to check everyone's profile just to comment, its would be better if that info was clearly shown under their avatar for simplicity, it seems with the Tapatalk that this isn't the case.

This is also the case on the old forum app that i use on my phone, although I'm pretty sure that's not supported any more.

 

[Darkwood]

I always used app' free access on phone hence I was unaware as this shows the site exactly as you would see it on your computer.

 

[Pete999]

Yes, agree but we don't expect everyone to check everyone's profile just to comment, its would be better if that info was clearly shown under their avatar for simplicity, it seems with the Tapatalk that this isn't the case.

I agree that most don't check the OPs profile, I do on most occasions in order to phrase my answer properly, don't want to upset anyone by assuming they perhaps should know better, if you as a mentor, I feel its better to check before sarcasm takes over, but then again not everyone completes their profile do they?

 

[Risteard]

The MCB in the house consumer unit would be very unlikely to operate

Wouldn't agree with that. A fault downstream of it is every bit as likely to take it out too.

The type of circuit breakers which are still commonly referred to as MCBs do not discriminate with each other for fault currents.

 

[Richard Burns]

Wouldn't agree with that. A fault downstream of it is every bit as likely to take it out too.

The type of circuit breakers which are still commonly referred to as MCBs do not discriminate with each other for fault currents.

I think you may be correct, but as there are no MCBs (circuit breakers) in the garage it is possible that 13A or at least 3A fuses would go before a 32A circuit breaker tripped, but it would depend on the actual fault current.
If there were a garage consumer unit in place then I would agree with you either or both could go in the case of a fault.

 

[davesparks]

Dave, any reason not to use 3a fuse in fcu for lights?

No reason at all if it's just one or two lights in a shed, but a lighting circuit is traditionally 5/6A.

To be fair it is more likely that the 13A fuse in the sfcu or even the 32A mcb in the ring will go first under fault conditions anyway.

 

[Chrishands]

Hi there, I have included a picture which I have found on a site, this should help you, if you wish to do it as a Fused spur from a socket in the house, don't forget your double pole isolator, this will ensure if you have a fault in the shed that you will completely disconnect the fault from the house,to avoid nuisance tripping. Remember outside is classed as a special location, you need to pay extra concern to Shock Protection. Good RCD trip Times, Good Earth Fault Loop Impedance