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Tripcock isolated

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1018509

Posts: 376

Tripcock isolated Jun 28, 2012 9:14:05 GMT

Post by 1018509 on Jun 28, 2012 9:14:05 GMT

There is a photo showing the Central Line RAT running at Greenford with the front tripcock isolated, any idea how or why this was permitted?

Photo seen on Julian Gajewski flickr page.

I haven't published the link as I am unsure of my right to do so.

Deleted
Deleted Member

Posts: 0

Tripcock isolated Jun 28, 2012 10:34:32 GMT

Post by Deleted on Jun 28, 2012 10:34:32 GMT

Central line uses ATP and doesen't have any conventional trainstops, and the RAT is fitted with ATP. Therefore in the event of a SPAD the ATP will bring the train safely to a hault and the tripcock is not needed when on the central. ATP also provides intervention braking in the event of an overspeed.