[kylegordon]

HV systems for trains are made safe by separation.

HV systems for close quarters use are made safe by technology.

The HV plug for your car could easily be wet as well, but it's made safe by having a signal wire and intelligence before it powers up or down.

For busses, Alstom have already got a ground based charging system, built upon their years of ground based power for trams.

https://www.alstom.com/our-solutions/infrastructure/srs-inno...