Hi S68 :smile5:
We seem to use the terms 'Induced' and 'phantom' interchangably.. Is that correct? One seems to imply that there really is voltage there (i.e 'induced') and the other suggests its not. If it makes the bulbs glow then it must be there? :uhoh2:
It could be capacitively coupled as well so I just used "phantom" as it could be down to either or both, having said that induced would probably need some current to be passing in one of the conductors to actually induce a voltage/current in an adjacent conductor, anyway I am a mere spark not a physicist so what do I know