Hi. Recently tried measuring a conductor to gauge it's size. The electrician who knows his stuff said it was 4mm stranded just by looking at it and I didn't disbelieve him but then I remembered I had a set of measuring gauges in the van so measured the cross sectional diameter and it was way smaller so then we measured some 2.5mm twin & earth and again the gauges read lots smaller.
Anyway this got me thinking were we missing a trick and the cable sizes are cross sectional area not diameter ? So pye x radius ?[/list]
Anyway this got me thinking were we missing a trick and the cable sizes are cross sectional area not diameter ? So pye x radius ?[/list]