Is this 6mm or 10mm cable?

[SUNRAY]

How far along have you looked? I.e. how many cm away from BASEC have you looked?

It was very normal to have no markings on cables other than makers name

Checking mine with a tape measure I have a Delta Enfield - Basec (late 1990's) 17*8mm and a Doncaster - Basec (pre 1994) 18*9mm, neither have any other markings and both are 10mm²

If yours really is 19*10mm² I think I'd be tending towards 16mm².

A quick google found this reply to a question

Where do I find typical overall cable dimensions for some standard flat T&E cable sizes?

Our expert answers a question from a Voltimum user regarding the outside diameter of twin and earth cable. Question: Quite often you find a T&E coming into a CU or box with no visible markings or stripped too far back, and it is difficult to estimate the CSA from just looking at it with stranded...

electricalapprentice.co.uk

 

[SJRSJR]

I went left and right and found the same stamp - nothing in between

 

[SJRSJR]

Thanks for the contributions and ideas. I might go into my electrical supply shop and ask them to show me both to see if that helps .

 

[Rodders53]

You'd be best saying why you need to know the CSA of this cable and are obsessing over the dimensions of the one installed.

Is it the cable to the 'extension DB' in https://www.diynot.com/diy/threads/...hob-from-extension-cu-with-6mm-supply.655113/ perhaps?

it’s live. Not an electrician so don’t want to touch anything.

You will, then, need an electrician to examine the termination(s) of that cable to ensure what the CSA is. Sooner or later. Just going by the dimensions of the sheath is not going to be 100% foolproof.

Albeit many on here will be happy isolating the whole home to open stuff up, take pictures and measurements; then close up and restore power. I've done worse, and once discovered a 1000A TV studio lighting supply was L-N reversed via a 20mm skeleton fuse-holder giving me a shock.

 

[JohnW2]

View attachment 408680

That table appears virtually identical to my one which I put in this forum's wiki, but with someone having re-done the final column (and emboldened it) to include the (so obvious that I hadn't included it ) overall conductor diameter of the three single-core ones (1, 1.5 & 2.5 mm²).

I therefore wonder where you found this slightly modified version of my Table?

 

[SUNRAY]

That table appears virtually identical to my one which I put in this forum's wiki, but with someone having re-done the final column (and emboldened it) to include the (so obvious that I hadn't included it ) overall conductor diameter of the three single-core ones (1, 1.5 & 2.5 mm²).

I therefore wonder where you found this slightly modified version of my Table?

 

[JohnW2]

View attachment 408752

How strange - so was it "Scolmore technical team" who 'plagarised my table in the DIYnot wiki? I find it very hard that they will have come up with a virtually identical table as mine, both in terms of contents and format, "by co-incidence"

 

[robinbanks]

If you have a vernier gauge, measure the diameter of one strand, and count the number of stands of copper, in a core. From that, we can let you know the precise size.

Yeah, it's cross sectional area so we will need maths too

It might be better, in the absence of having an accurate measure like a vernier/micrometer to skin it and reshape it so all the cores are in a flat line next to each other (touching) like ooooooooo
then measure the width of all of them together, divide by the number of cores, halve the result, multiply it by itself, multiply it by 3.14, and multiply it by the number of strands again

This will hopefully kill off enough measurement error to give a ballpark

All that said, you've measured 20mm by 10mm roughly roughly, it is unlikely to be 6sqmm CsA

 

[Harry Bloomfield]

Yeah, it's cross sectional area so we will need maths too

Yup, that's why I went on to say 'From that, we can let you know the precise size.' In other words, we would do the calculation on your behalf.

 

[Murdochcat]

OP - why do you want to know this ?

 

[SUNRAY]

The maths has all been done in post#21.

If one strand can be measured (or 1/7th of Robins idea) then just look it up on the chart.