Thin singles for steel conduit

[JohnW2]

It wasn't clear at all to me. I wasn't sure whether he was referring to an intermediate switch or otherwise

In that case, you couldn't have read much of the thread before you decided to jump in with your comment.

 

[JohnW2]

......I simply sought clarification as to what exactly he meant by a "3-way" switch, given that no such thing exists.

If you allow that 'off' is a 'way' ....

 

[SUNRAY]

To help further with the foreigners education the Americans version of an intermediate switch is clearly described in this youtube video

 

[Risteard]

If you allow that 'off' is a 'way' ....

View attachment 377557

It isn't. That would be 2-way and Off.

 

[Risteard]

In that case, you couldn't have read much of the thread before you decided to jump in with your comment.

I'm not obliged to read through all the gibberish posted here.

 

[SUNRAY]

I'm not obliged to read through all the gibberish posted here.

Hence the regular poor comments

 

[JohnW2]

I'm not obliged to read through all the gibberish posted here.

You're not - but if you don't read all of the relevant materially, then you shouldn't really jump in with comments based on an incomplete understanding of context.

 

[JohnW2]

It isn't. That would be 2-way and Off.

You don't give up! ...

 

[phatboy]

Sorry to drag this post almost back to topic, but I think I missed AMD3 in some resopects.... So if I am reading @JohnW2 correctly, a 'power' circuit no longer has to be 1.5mm cores, and in fact 1mm will be fine where the circuit breaker is appropriate.

I say this weeks after buying a roll of 1.5mm T+E for a 850w storage heater in a 6amp RCBO, because I thought it was 'the rules' !

 

[JohnW2]

Sorry to drag this post almost back to topic, but I think I missed AMD3 in some resopects.... So if I am reading @JohnW2 correctly, a 'power' circuit no longer has to be 1.5mm cores, and in fact 1mm will be fine where the circuit breaker is appropriate.

That is correct (it's AMD2, actually)

I say this weeks after buying a roll of 1.5mm T+E for a 850w storage heater in a 6amp RCBO, because I thought it was 'the rules' !

Sorry about that

 

[pete01]

OMG...interesting as these threads are they do go off track a bit lol....

 

[Ragnar_AT]

The one thing I do find interesting is that all European countries I‘m aware of have a minimum requirement of 1.5 mm2 for
mechanical strength in fixed installations (except control circuits). The UK and Ireland are the only exceptions as far as I know.

 

[EFLImpudence]

The one thing I do find interesting is that all European countries I‘m aware of have a minimum requirement of 1.5 mm2 for
mechanical strength in fixed installations (except control circuits). The UK and Ireland are the only exceptions as far as I know.

Why would mechanical strength be a consideration in fixed installations and yet not for control circuits?

Is the 1.5mm² minimum not more to do with the 16A circuits in Europe?

 

[JohnW2]

The one thing I do find interesting is that all European countries I‘m aware of have a minimum requirement of 1.5 mm2 for
mechanical strength in fixed installations (except control circuits).

There was, of course, such a regulation in UK until very recently. One can but speculate about the reason it arose but the reason you mention ('mechanical strength)

The UK and Ireland are the only exceptions as far as I know.

If 'mechanical strength' were the original reason, is it perhaps the case that 'we' realised that it had only ever been a bit of 'persistent folk law'? Has anyone ever seen a bit of 1.0 mm² T+E in fixed wiring which has, for some reason, 'broken'??

 

[SUNRAY]

Has anyone ever seen a bit of 1.0 mm² T+E in fixed wiring which has, for some reason, 'broken'??

Oh yes but in all honesty being thicker wouldn't have helped.