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That's certainly a theoretical possibility, so it makes sense to have the cooking appliances on their own circuit (which is the 'usual' situation'). It may have seemed that I was, but I wasn't really uintending to imply/suggest otherwise. However, given that the new circuit is going to just be...

Not a lot, but it has a meaning in relation to electrical items, particularly cooking appliances ;) If (as with cooking appliances) they are thermostatically controlled, it is very unusual for all the bits (oven elements, hob rings etc.) to all be drawing current simultaneously and...

A very good question. As bernard has said, they would have to be complex to be able to distinguish between direction of current flow but, even if they could do that, I still don't know what it would mean - it would seem very odd if they 'ignored' residual currents travelling in one direction...

That's what I thought and, as I wrote, I have yet to really find any evidence that they do exist - so, even if they do, they clearly can't be significantly 'available' (and I suspect might be extremely expensive, even if they do exist).

Do "omnidirectional" RCDs actually exist? I've certainly never heard of them, and Mr Google also struggles to find anything

Although they are "both just over 3kW" [i.e. just over 13A], after application of diversity they would both represent loads of less than 13A.

Well, I was talking about a "sensible/competent" electrician, and not all necessarily qualify as that :-) A separate 2.5mm circuit for the oven is presumably not actually necessary.

I think "many do not consider ..." is probably a serious under-statement. As I wrote, I've personally never seen or heard of any WM, DWM or dryer being fed from a 'dedicated circuit' in a UK domestic installation, have you? Dryers are different (even though usually 'plugged in to a...

It obviously wouldn't - but maybe they have a different ('not very correct') idea about CCCs over there ?

Yes, that, too, if you're talking about the grid switches.

That may be your opinion - although I have to say that I cannot recall ever having seen such appliances having dedicated supplies in any UK domestic installation!. However , your "So..." seems to imply that you believe that it follows from the material you have quotes (which is guidance, not a...

It depends upon where that 'point on the ring' is. If most/all of the loads are connected at, or near to, the mid-point of the ring (which is often roughly the case for those grid switch arrays in kitchens), then that is close to an ideal 'balanced' arrangement, and actually becomes equivalent...

Quite so - maybe written by plumbers!

Yes, plumbers (and other people!) have been known to do those things and, certainly in the case of 'disconnecting' (and not reconnecting' the SB, that could obviously be a problem if there were no RCD protection. 'Inserting a bit of plastic pipe' is also a possibility that is usually mentioned...

With any circuit, the maximum load that should be applied is defined by the 'breaker' - so the answer to your questions is 32A, which equate to 7.36 kW at 230 V (probably a bit more in terms of how appliances are often described - the stated 'kW' commonly relating to 240V). Sort of - although...

True, per what I've recently been saying. As I've also observed, if one has SB (which is exceedingly unlikley to 'fail') some may arue that, at least from the viewpoint of touch voltages in the room concerned, RCD protection is 'unnecessary' if there is SB! It's interesting that people often...

It's obviously essentially arbitrary, but one has to pick some number. Even with wet skin etc., <50V will probably avoid death in most people, but not all. In fact, no figure would be guaranteed to avoid death in all people - there are plenty of people out there who (often without knowing...

I can sympathise with that view and, again, certainly would not knock it. In this rather confusing thread in which I, for one, may appear to have been contradicting myself at times, I have suggested that we don't often discuss (or install) SB these days because it has largely became...

I can#t speak for Harry, but mine are both Type ACs ;)

I have the similar,and would not knock either of us for that (although some people would) ;)