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 ??
What are these for ? Is the smaller a ring main, and the larger for a cooker ??? Lighting ? Door bell ??? Shower ??