Identifying 10mm\16mm T &E

[GaryMo]

Unfortunately I don't have any calipers, but each strand is definately well over the 1.5mm.

Even 7 strands at 1.5mm diameter works out to 12.4mm so working on your 'at least' comment then I would assume it's not 10mm.

As Lectrician pointed out, it could well be an imperial cable:

7/.064 would work out to around 14.5mm

 

[ban-all-sheds]

Ths sheath on T&E used to be thicker back in t'day

And used to enclose cores which had insulation that was red or black all the way through, not just painted on.

 

[ban-all-sheds]

As Lectrician pointed out, it could well be an imperial cable:

7/.064 would work out to around 14.5mm

[code:1]Imperial Actual Nearest metric
size mm² equivalent
1/0.044 0.98 1
3/0.029 1.28 1.5
3/0.036 1.97 1.5 or 2.5
7/0.029 2.98 2.5
7/0.036 4.60 4 or 6
7/0.044 6.87 6 or 10
7/0.052 9.59 10
7/0.064 14.53 16[/code:1]

0.064" = 1.63mm.

1 of 7 strands making 16mm² would be 1.71mm.

If it's only being measured with a ruler and all we know is it's more than 1.5mm dia, it could be either cable...

 

[GaryMo]

That's my thinking (above) - I ruled out it being 10mm² with it more likely to be 7/.064 or 16mm²

 

[ban-all-sheds]

gonstartrek - what colour are the strands?

What colour is the outer sheath?

 

[gonstartrek]

Ths sheath on T&E used to be thicker back in t'day

Do you own a digital camera?

That's exactly the sort of thing I am worried about - 1) thicker sheathing & 2) differences in the imperial sizes (which it is undoubtedly). Judging form other posters it could well be the 7/0.064 -= that strands do seem to be 1/16" which is near as dammit.

Here's a photo.

Once thing though that I forgot to mention is that this may have not been the original cooker cable, but rather the supply to a secondary consumer unit that the cooker was fed off. Now that unit was removed 10 years ago , but I suspect the cable for it was just then used for the cooker.

My real question is, assuming it will fit the new cooker switch, is there any problem just reusing it for the new cooker in the new kitchen ? I'm not needing to replace the entire cable run. Am I just as well replacing it anyway ? It is an Electric range I am installing at it specifies 10mm: I also have a 12m distance to cover. I guess 10mm would be slightly easier to work with - at at least fit all the standard cooker switches and connection boxes.....

Untitled

• gonstartrek
• 19 Jul 2009
• 1

 

[ColJack]

absolutely not problem whatsoever.
if it's 10mm then it's fine, so if it's 16 it's even more fine...

 

[RF Lighting]

Ths sheath on T&E used to be thicker back in t'day

And used to enclose cores which had insulation that was red or black all the way through, not just painted on.

I think that varies according to manufacturer.

I have seen both methods used on harmonised cables.

 

[ColJack]

you noticed that twin brown T+E has one with solid colour and one that's "painted on" as BAS puts it?

 

[Lectrician]

I can't see a 16mm being put in for a cooker, especially back in the 70's. Even 10mm (or the imperial equiv) would be rare back back then.

It could be that it was put in at a later date.

I would say it was more likely a 10mm or equiv.

 

[ColJack]

it wasn't, it was a kitchen sub-main that they co-opted as just a cooker circuit when the kitchen CU was taken out

 

[empip]

If Imperial.

7/0.052" utilises 7/0.044" cpc ~ 3 x 0.044" = 0.132" approx' 3.35 mm

7/064" utilises 7/0.052" cpc ~ 3 x 0.052" = 0.156" approx' 3.96mm

Allowing for burred edges in the pix, looks like the larger cable.
Rated at 61 amp when clipped direct. with coarse excess current protection.
With close current protection the rating may be multiplied by 1.33

All that from the wiki - apart from the cpc dimensions.
IEE Wiring Regs. 14th Edition, 1966 - Apparently.
-p-

 

[ban-all-sheds]

Unfortunately I don't have any calipers

Easily rectified.



They don't cost much, are generally a useful thing to have, and will measure accurately enough for you to identify cables.

 

[GaryMo]

I'm a sucker for the easy life......

 

[empip]

Umm !