"Cables carrying 400,000 volts", let me just go touch it...,(reply>), I don't need safety gloves, because I'm Homer Sim-,(reply>), 400kv Can be carried on pylons or underground, underground wires are insulated.,(reply>), @John Airey you cant feel the magnetic fields that a 60 hz power line produces,(reply>), @Berkeloid Not to mention that those cables have conductive parts exactly to mitigate those issues.,(reply>), @John Airey Static charge is a build up of electrons, you don't get it when there is a metal conductor that can carry the electrons away.  This is why static electricity only builds up on materials like plastic that don't conduct electricity.  I'm not sure what you mean by the electromagnetic effect, do you mean the magnetic field produced by the current in the wire?  This is likely to be not that great because you need large currents (lots of amps) to produce large magnetic fields, and here they are using a high voltage which lets them lower the amps while still transferring a lot of power.  It's also three-phase (hence three cables) so as each cable produces an opposing magnetic field they cancel each other out to some extent as well (less so when they're in a line like that, more so when they are spaced equally from each other in a triangle arrangement).  But overall the magnetic field produced would be relatively small.