Re: No they don't
@Alan Brown
"won't change temperature"
I beg to differ - but maybe not a lot at 8 to 10A.
The plug certainly will change temperature, mainly due to the fuselink and I^2R. The socket will depend more on the wiring size perhaps.
I have run 13A plugs at 16A on test and they get HOT. Much more and they fail of course.