[atoav]

> in the majority of circumstances high voltage = high current

To be debated. Most of the visible (air-arcing) shocks I tend to get happen when I wear the wrong textile and given the length of the arc the voltage is well above 1 kV. So in most of the circumstances I personally encounter the current did not kill me.

What kills you is the current flow through your body. Voltage and frequency helps to produce that flow. RCDs and other protective devices help to limit that flow.

High voltage is dangerous if it has the current to back it. High voltage is also dangerous in the hands of people who don't understand the difference between current and voltage.

[bb88]

Ohm's law says:

I = V/R

It's as simple as that. A high enough voltage will find a current path ionizing the air or whatever is in it's way. A high current doesn't doesn't do that by itself.