The two most common methods of electrification are overhead lines and third rail power. What are the benefits and disadvantages of each?
(Permalink) Electrification OLE Third rail

Articles on electrification invariably focus on 25kV overhead systems or indeed the modern-day 50kV auto-transformer variant. The safety procedures that go with these are well documented and accidents are thankfully very rare. We must remember however that a significant percentage of the UK electrified railway uses live conductor rails positioned on the outside of one ...
(Permalink) Conductor rail Third rail