"N Cook" wrote in
:

Helps ?
It must be easier learning Japanese than learning to differentiate all
that lot and then ominously on top of that sections marked "Reserved
for Future Configurations"
Is it subsets of that lot for each state or each utility company or a
total mish-mash ?

They are named with a spec code that electricians learn, which is pretty
simple (first digit pertains to the voltage/terminals, the second
amperage).

Not like BS and CEE numbers which directly mean nothing, although I think
one could boil those 30 down to about 5.