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I knew that one would be coming  :B- Stands for 'Professional Engineer' mate. Electrical is my field. I didn't fancy the lobotomy for Mechanical Engineering...  :coat

But then it wouldn't be as confusing and we wouldn't be able to charge so much ;)

Less than 50mm then Regulation Group 522.6. Cheers.

You're right, it would make a lot of sense to standardise the dimensions a long with the performance. It would play havoc from a branding point of view however. Money, money, money...

Cheers for that fella it completely slipped my mind for a moment.

I did jump the gun a bit there though! Thanks for pointing out my error there pal, wouldn't want to mislead anyone.

I may have misquoted Rob, I'm not in the office so trying to recall from memory. If that is the case then I will correct it asap. Thanks. Update: 522.6.201, 522.6.202, 522.6.203, 522.6.24

Close. I'm an PE Electrical Engineer and 17th ed sparks. I'd say I'd know a thing or two about a thing or two... Do you have anything constructive to add or do you just... spam? Murdoch, I have a feeling a pattern is emerging here. Will you be stalking the rest of my posts? I will be sure to...

It's in the yellow book under 522.6.6 - 522.6.8. I'm not sure why you would say the NIC is an unreliable source of information. Whilst they don't write the regs, it is their legal responsibility as a governing body to uphold BS7671. Indeed, take an individuals opinion with a pinch of salt...

Interesting. I have heard ring finals are out with the next edi, but I know they have been pushing for it for a while now.

Hi Sharpend. There is that chance but from my experience I'd be very surprised if it managed to avoid it considering his description. But I can't argue with you, it's better not to assume if you're going by the book. Anyway I'm willing to give this one up as I wouldn't like to de-rail the OP's...

All of the circuits are going to need RCD protection I'd put money on it. Granted, but I've worked in the types of properties with boards/ccts he's describing and I'm willing to bet it will meet Ammend 3. It's an easier and better future-proofing solution in my opinion and wouldn't cost an...

Definitely needs RCD protection according to Ammend 3.

Excuse me pal but you're taking this post completely out of the context of the OP's original question. This is a Q&A thread and my advice was to the electrician who asked. What I said was completely accurate and I stand by it. Are you also arguing with the fact that board needs changing to...

Surface no, if there is surface-clipped lighting circuits the old lady's home that's on it's on circuit then fair enough but I highly doubt it. Along with anything else that would apply considering it looks as if it's three circuits in total; there will be enough concealed wire in that...

Do you think there will be much of that in the OP's post?

Yeah that's a really good point mate but it's all information you can find in the OSG which you can pick up from almost any decent book shop. Unfortunately this trade isn't protected as well as others and any one can nip down B&Q and buy everything they need to wire their house up completely...

Chapter 52 of Ammend 3 The Regulations for the selection and erection of wiring systems (impact) will be redrafted, with the removal of all references to “under the supervision of skilled and instructed persons”. It will be a requirement that cables that are concealed in a wall or partition...

Would you care to state why? This particular amendment is very clearly specified.

The BS number regarding MCB's is just to identify them to a particular standard. MCBs will differ in design, fitting different boards yet will always have the BS 60898 as that is there standard identification in Britain. I'm sure MCB's are now a BSEN60898 European standard now. Point being...