I have watched this clip several times now and there’s something I don’t understand.
When the helicopter approaches the line, the wand arcs as the potential between the line and ship are equalised, capacitance, well and understood. But why does an arc strike as the chopper leaves? The helicopter and the line are at equal potentials so why then? One would also suppose the helicopter to be charged at 500,000V after moving away and would need to discharge safely to ground potential before landing.
Alan
