OK, so it would between one layer and the next - but, even then, it's not uncommon to have insulation between the barriers.I wasn't thinking of adjacent turns, rather a block of 50V worth of turns, ie a 230V winding will consist of 5 layers of turns with a barrier between them.
The 'barrel scraping' referred to the discussion in general since, just like you, it would not occur to me to even consider the need for additional isolation between systems or buildings! Are the wired ethernet connections we're talking about any more a 'cause for concern' than, say, the public telephone network?I'm not sure where the barrel scraping comes in, it would not occur to me to introduce any additional isolation between systems or buildings ....
Yep - but optically-isolated copper would probably be almost as good (the only uncertainty would be the 'withstand voltage of the opto-isolators) - or, of course, 'wireless.but the untimate is of course a fibre optic.
Kind Regards, John