The adverts seem to show smaller tunnels for the CPC, but in any event 2.5 mm² and 4 mm² T&E both have a 1.5 mm CPC. If the technical specs are online, I cannot find them. I wonder whether they could handle a full-sized CPC if wired in singles?

Chris Pearson said:

the technical specs are online, I cannot find them.

The one's I've seen just say "capacity" (which means they can hold less ... just doesn't tell us how much less).

Are the lever clamp ones for portable socket outlets - i.e. extension lead use, or do we interpret that flex size requirement  to also include sockets for fixed (to me "non-portable") wiring ?

Mike

mapj1 said:

Are the lever clamp ones for portable socket outlets - i.e. extension lead use, or do we interpret that flex size requirement  to also include sockets for fixed (to me "non-portable") wiring ?

Not associated according to the standard.

That’s the jist of my point. You will soon be able to determine if a cable is too large for a terminal as it won’t fit in, but a smaller one will obviously fit in the terminal, however the important thing is whether it will be clamped securely. This is where in the absence of technical data,technical judgement comes in.

Baldyhugh said:

This is where in the absence of technical data,technical judgement comes in

Is the technical data actually absent? I've not scoured the internet or enquired myself, but the short-form "data sheet" isn't really a full specification, is it?