Most probably that is another part of the story, however it seems like there is the need of more current at higher frequencies: https://ntrs.nasa.gov/archive/n

Most probably that is another part of the story, however it seems like there is the need of more current at higher frequencies: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19730001338.pdf https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/197300... Look around page 40. I was reporting what I was told at the time, anyway here is a chapter of an electricity textbook confirming (for what is worth) the added danger of low (50-60 Hz) frequency AC current: https://www.allaboutcircuits.com/textbook/direct-current/chpt-3/physiological-effects-electricity/ https://www.allaboutcircuits.com/textbook/direct-current/chp...