It wont keep you just as safe and it directly contravenes regulation 314.1
If you take you head out of your arse for one second and actually read what I have written, you'll realise how stupid you are making your self look.
A single RCD at the head of the board is dangerous and does not comply with BS7671. It never has.
You then go on to tell me everything that I've already written earlier in the thread.
What's with the attitude anyway?
I fail to see how one RCD is any less safe than 2? and what does dividing installations in to circuits have to do with this anyway? The installation would no doubt be divided in to circuits. It's how many RCD's are required to protect those circuits we are on about. Answer = How many circuits do you have? 6 circuits = 6 RCBO's (other than if for exceptions under 411.3.3 or unless requirements of 522.6.5 / 6 are met
2 RCD's don't make it anymore safe and doesn't comply with regs (the same as 1 RCD doesn't)
Read the reg below it the one you have quoted. The only way of complying with regs is to fit RCBO's to each circuit.
I'm not saying it is right to only fit one RCD, but it is no more/less dangerous than fitting 2 RCD's.
Pre 2008 we only ever fitted one RCD and this complied with the 7671 (so don't say it NEVER has)
Thank u and please don't call mention my arse