Electrified track

Track provided with an overhead catenary or a conductor rail to permit electric traction. The following types of electric current are in use: AC 25 000 Volts, 50 Hz 15 000 Volts, 16 2/3 Hz DC 3 000 Volts 1 500 Volts 750 Volts 660 Volts 630 Volts.