4mm ring

[pete01]

and what about the 3A FCU for a fan

Absolutely pointless, but manufacturers insist so follow the rules or dont.

if you/they put capping over cables that were going to be plastered into a wall?

Wouldnt bother me either way oval conduit would be my preferred method.

 

[pete01]

john w2... you seem to fully understand how I have done this installation....not sure if everyone else as though.

I do now, if it's done and dusted I wouldn't worry about it

 

[JohnW2]

Oh well yes if thats the case, connect the sockets screw them back do the relevant tests and dont worry about it.

Exactly.

 

[JohnW2]

Absolutely pointless, but manufacturers insist so follow the rules or dont.

Fair enough - but does that mean that the peoplewho do it and/or the manufacturers are 'wrong'?

Wouldnt bother me either way oval conduit would be my preferred method.

I didn't ask whether it bothered you but (with oval conduit as well as capping), rather, whether you regard it as 'wrong'.

 

[JohnW2]

john w2... you seem to fully understand how I have done this installation....not sure if everyone else as though.

Well, either they didn't understand or else they've been wasting their time writing - since there no point in saying that something impossible should be done, nor worth wasting time thinking about whether something which will always be totally inaccessible and untouchable 'should be earthed'

Kind Regards, John

 

[pete01]

Fair enough - but does that mean that the peoplewho do it and/or the manufacturers are 'wrong'?

I didn't ask whether it bothered you but (with oval conduit as well as capping), rather, whether you regard it as 'wrong'.

Don't see any as wrong.

The cable I said was the wrong choice of cable, surely you dont disagree, I didn't say unsafe and have since said if it's in it's in and not to worry.

Where are you going with this, do you want me to say it's the correct cable to use, good job.

 

[JohnW2]

Don't see any as wrong.

OK.

The cable I said was the wrong choice of cable, surely you dont disagree,

I agree that it's a choice that is unnecessarily expensive and time-consuming to install - but since, once bought and installed, it's totally satisfactory for the job it's doing, I certainly would not call it a 'wrong' choice.

Where are you going with this, do you want me to say it's the correct cable to use, good job.

No - but I might hope you would say that it was a cable that was perfectly satisfactory for the purpose, but that cheaper and easier-to-install cables would be be a more sensible choice.

It's your word "wrong" that has caused all the argument.

 

[pete01]

OK.

I agree that it's a choice that is unnecessarily expensive and time-consuming to install - but since, once bought and installed, it's totally satisfactory for the job it's doing, I certainly would not call it a 'wrong' choice.

No - but I might hope you would say that it was a cable that was perfectly satisfactory for the purpose, but that cheaper and easier-to-install cables would be be a more sensible choice.

It's your word "wrong" that has caused all the argument.

I can replace wrong with unnecessary no problem, sorry if I caused any confusion or headaches to anybody

 

[JohnW2]

I can replace wrong with unnecessary no problem, sorry of I caused any confusion or headaches to anybody

Thanks. As I said in my last post, it's only your use of the word "wrong" that has caused all the trouble.

What you have realise is that people look at forum posts, sometimes long after they were written, in a search for information - and the word "wrong" can easily be taken to mean 'not allowed', thereby misleading them in a case like this.

 

[pete01]

Thanks. As I said in my last post, it's only your use of the word "wrong" that has caused all the trouble.

What you have realise is that people look at forum posts, sometimes long after they were written, in a search for information - and the word "wrong" can easily be taken to mean 'not allowed', thereby misleading them in a case like this.

Point taken.

 

[sparkwright]

I'm getting increasingly confused, particularly about some of the comments.

If my understanding is correct (maybe not?), but as the OP has recently reminded us, it seems that the armour has been 'cut back' and is now buried under concrete. If that is remotely true then:

(a) there's no point in people going on about 'glanding the SWA properly', since it appears that armour is no longer available to anyone ... and

(b) all of this discussion/argument is therefore about whether or not there is a (theoretical, but unachievable) need to earth some metal armour which happens to be surrounding a cable which is entirely embedded in concrete and which therefore will never be accessible or touchable.

In other word, in the situation the OP finds himself in, I would day that the armour is a total irrelevance.

Kind Regards, John

As I understand it, the sections where the armour has been cut back is NOT under the concrete, but up the wall - sockets mounted 450mm from floor, armour cut back 50mm from socket back box.

So he could lower the sockets and fit glands, or fit a short lengths of galv conduit between gland and box, or just leave it and forget it.

 

[russellsmiler]

you have it interperated correctly Sparkwright...however I feel I am too far into the instalation to change now.
one thing that has not been mentioned is that the 1st and last sections of this ring will be glanded at the dis tribution board, as per the norm...dont see any issues with this ...or is there???

 

[Risteard]

It is not correct to suggest that the armour need not be Earthed. Earthing of the armour is compulsory, mandatory and must be done in all circumstances. Gland it into the backboxes properly. It is not optional.

 

[securespark]

I've designed ring final circuits that involved conduit and insulation, using 4 milli.

 

[securespark]

It is not correct to suggest that the armour need not be Earthed. Earthing of the armour is compulsory, mandatory and must be done in all circumstances. Gland it into the backboxes properly. It is not optional.

Can you back up your reasoning, please?