Thread: Live lines on tube track?
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Old November 18th 05, 10:08 AM posted to uk.transport.london
Ken Ken is offline
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First recorded activity at LondonBanter: May 2005
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Default Live lines on tube track?
On Thu, 17 Nov 2005 19:40:14 GMT, "d" wrote:



Only the ones with insulators under them are live - the train runs on on the
other two, and simply rubs the other ones to get its juice. One is +630v
and the other is -210v (or the +/- the other way round )

Isn't it 420v and 210v, making a difference of 630v (and I don't know
the polarity, either)?
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