nsTeam2RO, nsTeam2RW, nsTeam2_talkRO, nsTeam2_talkRW
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A '''third rail''' is the [[railway track|rail]] of a three-rail [[electric railway]] line separate to the two rails (the running rails) which carry trains, that carries the current to power the trains.
A '''third rail''' is the [[railway track|rail]] of a three-rail [[electric railway]] line separate to the two rails (the running rails) which carry trains, that carries the current to power the trains.
[[Electric]] trains on such a system have a "shoe" that contacts the third rail to collect the current, which is returned in one of the two running rails.
[[electricity|Electric]] trains on such a system have a "shoe" that contacts the third rail to collect the current, which is returned in one of the two running rails.
Some [[railway]]s have a fourth rail for the return of the current.
Some [[railway]]s have a fourth rail for the return of the current.