While Darren was roofing, I unpacked an electrical delivery that came yesterday - the 3 phase distribution box and it's entrails, and also the three internal and one external 100 W LED flood lights.
I'd worked out that I needed eight electrical 'ways' in the board:
1/ 50 Amp 3 phase feed to external electrical distribution point
2/ 32 amp 3 phase 'socket 'radial'
3/ 16 amp 3 phase 'socket radial'
4/ 16 amp 3 phase service for roller shutter door
5/ 32 amp ring for single phase sockets
6/ 16 amp ring for single phase 16A 'commando' sockets
7/ 6 amp internal single phase lighting circuit
8/ 6 amp external single phase lighting service
Although 8 way boards are available that would leave no 'expansion capability' for the future so I am installing a twelve way board.
I am also incorporating a 30 mA RCD which involves installing a conversion kit in the board to couple the RCD to the bus bars hopping over where a simple isolator could have been fitted. I've fitted several of these kits in the other buildings, but this one proved a pain until I realised that the "ISOLATE BEFORE REMOVAL" label had been stuck on upside down

Then I went on to test each LED floodlight - all worked
