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Old November 30th 08, 05:36 PM posted to uk.railway,uk.transport.london
David Hansen David Hansen is offline
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First recorded activity at LondonBanter: Jul 2003
Posts: 376
Default Bakerloo Line beyond Harrow & Wealdstone

On Sun, 30 Nov 2008 16:50:43 +0000 someone who may be Steve
Fitzgerald ] wrote this:-

http://www.tubelines.com/whatwedo/tr...guidance/LU_sh
ort_circuiting_device.pdf


Which sadly in this case, the SCD was the cause of the problem.


I guessed that it was one of a series of problems which caused the
voltage from a still energised positive rail to be transferred to
the negative rail. Presumably there was some sort of broken
connection or open circuit breaker/fuse in the feed to the negative
rail.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54