On Thu, 11 Apr 2019 09:06:19 -0700 (PDT), harry
wrote:

snip

The cable is not subject to mechanical stress as it's behind the wall plate.

So, between the faceplate being off and back in place, there is no
chance any strain could be put on the inner conductor (if the clamp
wasn't providing any mechanical support)?

Or if someone pulls the cable from the other end ... ?

What you meant was in 'harry's world' (... Imagine how sad / sick a
place that would be if it was a Theme Park ...) you couldn't imagine
any circumstances where making sure the mechanical clamp was as good
as possible would be a 'good idea'?


So why don't they have a cable grip on the incomer(s) of a 13a socket?

Because the conductors are typically 2.5sqmm and between them
generally hold the cable group in place. Not the same with a very fine
central conductor on a co-ax cable (especially one that may have been
nicked with the cutter when being stripped).

The consequences of an aerial cable coming loose are trivial anyway.

Not really the point though eh?

Cheers, T i m