My view on this is extremely biased as I install equipment that exposes the operators to magnetic fields far greater than this. Sometimes the operator has the electrodes touching the body with 10kA flowing in them. In the conductors, not the operator [Linked Image] As the electrodes are about a foot apart, the magnetic field cancels some distance away from the electrodes. Nuts and other small metallic objects have a field day near the electrodes...

As far as I know, there haven't been any recorded short term effects on people from this despite half a century of widespread use.

Long term? Don't know.

Would I want to live right under a 220kV line? No! Apart from EMF, those wires can come crashing down. Not to mention bird droppings from the chatter party on the wires...