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ProDave

Spot The Fault (s)

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ProDave

 

Found on an EICR

 

odd_flex.thumb.jpg.427fb270d4a5a17758bd34cf29ae18c2.jpg

 

I may have confused you, I changed it to a "spot the fault" but someone had replied already.

 

The "flex" is in fact 3 solid cores about 1.5mm one green'yellow, one black, and one blue. Definitely those colours not burnt.

Edited by ProDave

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Murdoch

No idea

 

I was fault finding a central heating system a few months ago - flex with 3 black cores .................. not numbered or marked in any way.

 

The mind boggles.

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Sharpend

Would it be a burnt Brown as your description sounds like nym cable?  

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Andy™

no earth sleeving

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roys

Screws missing from the faceplate causing the faceplate  to come adrift😀

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binky

1.5mm flex on 32A MCB?

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ProDave

Faults were:

 

No earth sleeving.

 

This was the first spur, with 2 more spurs from that wired in the "flex"

 

Size and colour of the "flex"

 

I am left wondering where this odd coloured, solid cored flex came from and what would it normally have been used for? You see a lot of strange stuff up here, a lot of it I think falls off the back of an oil rig.

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Andy™
10 minutes ago, ProDave said:

Faults were:

 

No earth sleeving.

 

 

yay. whats my prize?

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ProDave
1 minute ago, Andy™ said:

 

yay. whats my prize?

The coil of useless funny "flex"

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Andy™

meh. you can keep, it, save yourself the postage

 

 

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Evans Electric

Theres a German cable ..I think ...with those colours in it .    Is the outer sheath really tough PVC ? 

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Sharpend
34 minutes ago, Evans Electric said:

Theres a German cable ..I think ...with those colours in it .    Is the outer sheath really tough PVC ? 

 

Thats NYM cable. 

https://www.conrad-electronic.co.uk/ce/en/product/1517102/?

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binky

seen it somewhere before, but can't think where. What's it mean't to be used  for?

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Sharpend

It is used in ‘German’ shops. 

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ProDave
2 hours ago, Sharpend said:

Yes that's it, and I was right on the size. The outer sheath is really tough, the inner sheath is really soft.

 

Still struggling to understand the colours, though you can argue Black is now a phase colour so nothing wrong with using that in an installation?

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Risteard
3 hours ago, Evans Electric said:

Theres a German cable ..I think ...with those colours in it .    Is the outer sheath really tough PVC ? 

 

NYM-J. Very commonly used in the south of Ireland. Somewhat similar to Hi-Tuff except it's not UV tolerant.

37 minutes ago, ProDave said:

though you can argue Black is now a phase colour so nothing wrong with using that in an installation?

 

You absolutely cannot argue that as it is clearly defined that the phase (other than in a polyphase circuit) must be brown.

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ProDave
1 hour ago, Risteard said:

 

NYM-J. Very commonly used in the south of Ireland. Somewhat similar to Hi-Tuff except it's not UV tolerant.

 

You absolutely cannot argue that as it is clearly defined that the phase (other than in a polyphase circuit) must be brown.

So WHY is it made with G/Y, Blue and Black if there is nowhere you can use it?  Just where CAN you use it with those colours?

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binky

nowhere in the UK it seems . 

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Sharpend

We are installing it in Lidl’s, although it is brown/blue not black/blue. 

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Evans Electric

I remember being shown a piece of that ,  must be 28 yrs ago,  by the NICEIC  assessor back then ...   the greatly respected  Mr Ray Digger  ...know throughout the Midlands .   

If I remember right he thought it could be used in light industrial , commercial  as it would surface clip neatly and was tough as old boots.  

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Risteard
4 hours ago, ProDave said:

So WHY is it made with G/Y, Blue and Black if there is nowhere you can use it?  Just where CAN you use it with those colours?

 

NYM-J does not comply with any British Standard. (It is a VDE cable.) It's not suitable for BS7671 installations.

 

That said any of the NYM-J I have used has been brown/blue/green & yellow in 3-core.

 

However, the colours you have mentioned (if indeed it is produced with those) could be used on a single phase final circuit in the south of Ireland (to ET101 Wiring Rules) fed from a three-phase DB if the circuit is on phase L2.

Edited by Risteard

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Sharpend

You are correct Risteard, it is a German VDE cable and is therefore not compliant to BS7671, however so is sy etc yet it is still widely used over here, which realistically makes a mockery of the BS7671 regulations? 

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Sidewinder

Deviations.

Also, as it is to DIN standards, then it is difficult to argue that it can't be used.

DIN standards have a common iEC ancestry to BS & EN standards.

However, try using BS only cable there and they will simply not allow it.

Which "technically" they should.

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Sharpend

Level playing field as normal then. !

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