Actual Cable sizes

[RobinClay]

The table at https://www.diynot.com/pages/el/el004.php is all very well, but it needs another column labelled "overall width". I have some flat cable in my loft that's 8.5 mm wide over the normal insulation, and some that is 10mm wide.
What are these for ? Is the smaller a ring main, and the larger for a cooker ??? Lighting ? Door bell ??? Shower ??

 

[mwatsonxx]

https://www.diynot.com/wiki/Electrics:flatpvccables

 

[RobinClay]

Thank you, mwatsonxx !
But "it would be nice" if the Table I mentioned also had that column

 

[securespark]

Some cables, especially imperial sizes, have thicker insulation and sheath than others so it is not possible to be entirely accurate.

 

[rsgaz]

and some that is 10mm wide.

This is more likely to be '3 core and earth', when found in a loft, used for lighting and/or extractor fans, rather than 2.5mm² twin and earth.

Inspect the cables closely, it will say stamped or printed on them how many cores and what cross-sectional area they are.

 

[securespark]

Some are marked for sizes, but by no means all.