Thaipwriter

Yes to both points. Thanks for your help on this thread and also for the many times I've come here for info posted by you since something like 2006!

@Crossy I saw on another thread you mentioned you used Wago 773 push wire connectors in your house build. I'd like to know if it ok to use three of those in a junction box in the ceiling space above each drop down to each socket on a radial circuit. The Wagos would connect the incoming 3 x2.5mm2 wires to three 2.5mm2 wires that drop down to the socket and also to the three wires that run onwards in the circuit to the next socket outlet, and so on up to a total of 8 double sockets per circuit? Would that be up to an acceptable standard?

Good to know, maybe I'll just direct bury it and run some plastic "caution / warning "tape just above it in the trench. It'll be about 400mm below grade, I doubt the wife has the energy to dig holes for her plants that deep.

I didn't word that very well sorry, lights 1.5mm, plugs 2.5mm, showers 4mm and so on. Ground rod is next to pump pad. There will be a small pool filter / pump there also so probably run 2x4mm2 NYY in plastic conduit to it. I have three airs cons going in. Two 12,000 btu interters and one 18,000 btu inverter. If I've searched correctly on here they need each have their own 20a breaker with 3x2.5mm2 wiring? Two showers as yet unknown whether 4000w to max 6000w these need their own 30a breaker and 2x4mm2 + 1x2.5mm2 earth cable? Thanks for answers guys, it's nice to have a clear plan before work starts.

Overseeing a new build single story 2 bedroom house build, it's nearly time to start conduit and wiring and I have more questions than answers given there seems to be no code for electrical installation available. First question is if I have every single wire installed in the whole house fully enclosed in plastic conduit pipe it is ok to use single core THW 1x2.5mm wire throughout as opposed for example 2x2.25mm2 VAF cable? Second question is the earth wire pulled between 3 pins double outlets, best practice is to use green/yellow THW 1x2.5mm2 or will 1x1.5mm2 suffice. Third question relates to RCBO which I see I now "mandatory", the panel I bought came with a 63a 2p RCBO as the main breaker. I will be on a 15/45 meter and suspect I should have ordered a 50A instead, should I change that out now or wait and see if it fails inspection? Fourth question relates to running a cable outside to the pad where the water pump will sit. It seems on rental houses I've stayed in they are buried VAF 2x1.5mm2 or 2x2.5mm2 in the yellow plastic trunking about 5 inches below grade. This seems a bit dodgy. Is that the accepted thing to do or is there an improved way? Many more questions, but answers to these would be great!