On Tue, 04 Sep 2007 00:23:11 GMT, "The Medway Handyman"
mused:

John wrote:
"The Medway Handyman" wrote in
message ...
Am I right in assuming that when T + E cable is referred to as 2.5mm
that is the diameter of the bare conductor?

Is there a chart anywhere that gives the outside dimensions
including all the insulation?

PLEASE tell us all that you no longer do any electrical work (even
making an allowance for Part P sillyness!). THIS is one of the very
first things you are taught in 'electrical college' after "DO NOT put
the screwdriver in there!!!"

The reason I want to spot the difference quickly & easily is so I don't get
into problem situations. I've been asked to remove an old electric cooker
and install a new one. The new one is 9kw. Before I get involved I want to
check that the cable is big enough. If not I will turn the job down.

Be aware that insulation thickness can vary wildly.
--
Regards,
Stuart.