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Ballpark figure for a sparky to supply and install an RCBO board?.... 5x 32a rings 1x 32a radial 3x 6a light circuits. I know itl vary, but just a very general ballpark figure would be most helpful

Just to tie this off for me, with 18th ed whats are the options for CU changes..... does everything have to be on a RCBO now or a split load dual RCD boards still an option? Anything else?

You can get lightbulbs with PIRs built in. Just search on amazon. Iv got one on the landing so the kids dont fall down the stairs when they are looking for the toilet in the night.

Any figures for lights? The oven circuit is about 11kw with the oven and induction hob so that would check out then. I think a new RCBO board is probably due but i wouldnt want this to just mask an underlying problem.

Ok, borrowed a clamp meter.....is there an acceptable earth leak mA figure for an individual circuit? E.g. my oven/hob radial sits at 6.6mA but 0.3 with wall DP switch off. Seems quite high? Downstairs lights circuit is at 1.2 Everthing going through the RCD adds up to 18, so not far off a...

Thanks everyone. One last question... why is IR carried out at 500v and not 250 or 1000? And as such, presumably all appliances downstream need unplugging completely?

Ok, so clamp line and neutral going to RCD because the RCD works by detecting differences between the two. Assuming this helps identify the circuit, the insulation resistance test would then help determine if the problem is with the wiring or not and if not itl likely be an appliance on said...

Thank you. So, earth leak clamp to find circuit(s) and then insulation test to rule out a fixed wiring problem in that circuit?

Been reading some bits and bobs on RCD nuisance trips. Can someone explain to me which type of testing is for what and why you would do one over the other or both 1. An earth clamp meter..... turn all circuits off at CU, clamp main earth at CU, take readings for each circuit in turn, points...

Yeah it just a cheapo socket tester. I just bought it to add to the toolbox for no real particular reason and was just expecting all greens tbh so im a little bit worried. What sort of problem would cause a higher than desired reading? House is less than 20 years old.

Socket rings on 32a MCBs The tester doesnt give a figure, but the switchover from a green indicator to amber is at 1.8

Some of the sockets are brand new, others are old. Its just tripped the RCD now as well.

Got a Kewtech 107 socket tester which is giving some confusing results on the loop test. Plug it in and switch on and I get a green light for the loop test but if i then test the same socket, I get an amber. Had the same thing either side of a double socket i.e. left green, right amber, left...

This is awesome. Thanks for taking the time to document it. I shall be following it with interest!

Its your house, your decision. I hadn't suggested you should do any of it yourself. Personally I wouldnt want it unprotected.

The transformers are not part of the circuit, they are part of the fitting. I'd change for ip65 mains LED and add the RCBO personally. (Both just my opinion)

Thanks everyone. I'll proceed as suggested

A picture speaks a thousand words. What i currently have is in black, what im now thinking the best way to do this is in green (the circle would be a 30a junction box). Thoughts? What i was originally going to do is take the green from the ring socket to a fused switch then the new socket, but...

Thats what i mean in point 2..... add a new socket slightly further up the wall using ring cables and then extend ring to lower original socket. Then each of these would have one spur each. Is option 1 a no go then? Literally for 30w of LEDs only.

I have a double socket on a ring that already has a double socket spurred off it in my garage (to the left of ring). All cables surface mounted on to the block wall. I would like to add a fused switched spur (to the right) that feeds another socket for some plug in low wattage lighting LEDs...