I'm just back from site having completed this job. I'll talk you through the photos.
The first shows the site supply cabinet. The supply to this unit is the bottom left meter. Perhaps that photo belongs in the black museum.
Next is the CU and some of the wiring. This is to illustrate the building construction. It's a timber framed building with the void insulated with sheeps wool and covered in tyvec. Note the
horozontal battens onto which the plasterboard will be fitted giving a 40mm service void for pipes and cables. Having the battens horizontal means no studs to drill through.
Note the strip of OSB fixed around the whole building for all the cables to fix to without penetrating the tyvec and destroying the buildings seal. All circuits run on this OSB in a safe zone at socket height. Where cables need to come up the wall e.g light switches, the cables tuck behind the battens between the battens and the tyvec. Roof construction is similar.
The third shows the outside of this "portable" building. Cladding still needs completing and there are no windows yet. Make up your own mind how portable it really is.
And the last photo from across the site shows how this building towers over it's neighbouring caravans.
This in reality amounts to a modest sized 2 bedroom bungalow with a total of 60 points. I wired it to virtual completion in 43 hours this week, being three very long days and 3 hours this morning. That works out at about 45 minutes per point, less than my usual average of 1 hour per point. But this is a bit like an industrial install where someone has been before you and installed the cable trays. In reality the whole thing was wired in 3 very long days, and the few hours this morning was the final testing and wiring the pump for the solar heating system.
My aim had been to complete first and second fix in one go. I mostly achieved that with the builders following me around fixing the plasterboard as soon as ready, then I went back and fitted the accessories. While all the accessories are fitted, wired and tested, I will have to go back again to wire things like the immersion heater (no tank fitted yet), heated towel rail, final kitchen, bathroom and wall lights etc and the shed that will contain a potters wheel and 5KW kiln (they forgot to mention the shed originally)
It's taken 12 days to get from the start of construction to this stage, and they hope to complete the build on time by the end of next week, if the windows arrive. At the moment all that's keeping the rain out is plastic sheeting over the window apertures.
The site management raised concern at the height, and for the next one are going to stipulate a maximum height above the ground.
The same builder is hoping to do another 5 of these next year (in addition to the other one this year already under way) and hopefully I will be wiring them all.
And before anyone criticizes the location of the CU so low down and tight into a corner, it was constrained by using the original SWA feed to the old caravan, it would only reach that corner and that's as high as it would reach. But remember no BC to complain about things like that. The customer is happy with it there.