I thought in Europe they used the ‘,’ where we used the ‘.’.
That would make it 3.5000 volts?
http://en.wikipedia.org/wiki/List_of_current_systems_for_electric_rail_traction lists voltages for various lines. It looks like Andujar was on the RENFE line, but I can't tell if if was one of the "New High-speed lines" running at 25,000 volts AC referred to on Wikipedia or the older 3,000 volt DC line. So does "3,5000-volt" mean 3,500 volts or 35,000 volts? I can't tell. Either one is more than enough to kill you.