en Pelisplus. This film is shown to all recruits to London Transport's railway departments and teaches common-sense practices to be followed when working on London Transport electrifed track, or in depots. London Transport's 'four-rail' permanent way is explained in detail, and it is shown that both negative and positive current rails are dangerous. Correct behaviour when working or walking on or near the track is shown, and examples are given of methods of handling and disposing of tools.
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