Unusual cable size entered in a PIR

[Les Macaulay]

While looking over a PIR for a domestic flat, the approved electrician has entered for the Cooker circuit a cable size of 10sqmm but has scored thro this and entered 8sqmm. For the shower circuit he has entered a cable size of 8sqmm (no score out). So he must have intended a size of 8sqmm, but there is no such size, is there? Is there something I'm missing about cable sizes? Sorry, but I am unable to correct the heading first word to "Unusual"
Les

 

[Risteard]

Perhaps he meant 6mm^2 but had a brain fart and wrote down the wrong thing...

 

[Spoon]

You are correct, there is no 8mm cable size.

 

[Andy5678]

Sounds like an error. Will be 6mm or 10mm. Are you doing the repairs?

 

[westward10]

Get 8.0mm from China.

 

[Marvo]

Maybe two 4mm cables in parallel like a 4mm ring cct with a single point of consumption? Highly unlikely, not sure if it would be legal in the UK but there's no such size as 8mm sq wire and it doesn't even fit with an AWG size either.

 

[Andy78]

Get 8.0mm from China.

I noticed the neutral links in a recent Hager CU I fitted were marked up 20.0mm.

Could 8mm be a rough approximation of an imperial cable size ?

 

[rsgaz]

Could 8mm be a rough approximation of an imperial cable size ?

Pretty much bang in the middle of two!

7/.044 (nominal 0.01in²) is 6.45mm²
next size up...
7/.052 (nominal 0.0145in²) is 9.35mm²

 

[Deleted member 26818]

Was thinking a guesstimate of an imperial size.
What colour are the cables?

 

[westward10]

I was being tongue in cheek at #5 suggesting Chinese cables are not produced to spec.

 

[Les Macaulay]

Sounds like an error. Will be 6mm or 10mm. Are you doing the repairs?

No, I am a retired spark and simply interested. Thanks, all who replied.

I was being tongue in cheek at #5 suggesting Chinese cables are not produced to spec.

 

[Les Macaulay]

Realised that and was lol when I read it.

 

[DefyG]

Probably guesstimated the diameter of the cable and not the sq mm!