Power to an outbuilding

[M107]

This mornings little job, customer purchased all materials & had already run the T/E internaly through the loft & the swa outside but couldnt work out how to do the rest, so I supplied labour only to teminate test & certificate/notify the connection of a small submain to an external cu & put power into a globe outbuilding.

This is the building

http://i83.photobucket.com/albums/j293/gazjothomas/IMG-20120721-00045.jpg

http://i83.photobucket.com/albums/j293/gazjothomas/IMG-20120721-00049.jpg

Last one shows location of the cu to the left of the decking.

http://i83.photobucket.com/albums/j293/gazjothomas/IMG-20120721-00050.jpg

TT'd the external cu..

http://i83.photobucket.com/albums/j293/gazjothomas/IMG-20120721-00048.jpg

CU located on the decking as requested, not what I wanted to do but heyho.

http://i83.photobucket.com/albums/j293/gazjothomas/IMG-20120721-00047.jpg

RCD main switch on external cu, Pirahna Nuts used to keep IP rating of enclosure.

http://i83.photobucket.com/albums/j293/gazjothomas/IMG-20120721-00046.jpg

(yes I was chatting & not concertrating & lopped off the circuit cpc to short hence the doubled up 2.5mm......no 4mm on the van)

Joint of swa to T/E wiska box used to enclose the joints (put in last Dec)

http://i83.photobucket.com/albums/j293/gazjothomas/IMG-20120721-00044.jpg

http://i83.photobucket.com/albums/j293/gazjothomas/IMG-20120721-00043.jpg

The FP drops to a masterseal socket on the patio below, this is a 16amp radial put in last Dec.

 

[batty]

Nice work M as always hope its not in a flood area. Some customers don't have a lot of sense.

 

[steptoe]

Im puzzled as to the IP rating of the CU to be outside?

could you not put it in a decent IP rated box? or is it actually OK outside?

 

[OnOff]

Im puzzled as to the IP rating of the CU to be outside?could you not put it in a decent IP rated box? or is it actually OK outside?

I was assuming the decking wasn't finished!............ :coat

 

[paul b b]

Im puzzled as to the IP rating of the CU to be outside?could you not put it in a decent IP rated box? or is it actually OK outside?

Caravan parks have them outside

 

[steptoe]

They are IP rated units though Paul.

 

[Sharpend]

Then there was silicon!!! :innocent :coat

 

[Jono Pashley]

CU looks like one of these

MK Sentry 4-Way RCD Garage Consumer Unit | Screwfix.com

so IP65

 

[hxsarge]

t+e outside? why not come in the back of the box?

oh just read, last year, sorry. :yellow card

 

[M107]

Steps as jono has pointed out it is IP65 mate.

t+e outside?

Why not..............but in this case I took the line of T/E is below the enclosure so not in direct sunlight/rain so no major problems.

why not come in the back of the box?

Look at the wall surface...........didnt fancy trying to make a large hole in pebble dash to accomodate a couple of glands...... in my opinion far better to come out below the enclosure then gland into the enclosure.

 

[hxsarge]

fair enough, ya cant all be as good as me. only joking mate, only the other month i did a subby job running a t+e the full length of a semi for an osl, to the main sparks specs.

 

[adammid]

Nice job, good to see you have used earthing nuts and not stupid banjos. I see you have connected the earth conductor of outgoing swa straight onto the earthing nut. Can I ask why you don't take it to the earth bar in cu and then connect from earth bar onto earth nut? Not saying its wrong, just wondering that's all?

 

[ashleycowx]

That's I nice little summer house indeed,

Nice use of wagos I started using these about a year ago and wont look back, they are a little bit more expensive but so much easier and less time consuming...

Looks like a nice install overall though..

Cheers

Ash

 

[apprentice87]

Very nice job i must say!!!

john..

 

[leespeed]

why tt when you,ve connected the cpc from the house thought it was not used from the point the glands enter the jointbox

 

[M107]

If it wasn't connected at the joint box & out to the cu (where it is isolated & the cu is TT'd) would the distribution circuit have a cpc for the length of the swa?

TTing is my preferred method for outbuildings outside the main equipotential zone of the supplying building..old habbits die hard.