London Banter - View Single Post

David Hansen · November 25th 08, 08:03 PM posted to uk.railway,uk.transport.london

On Tue, 25 Nov 2008 18:55:23 +0000 someone who may be
wrote this:-

Going off at a Tangent any one know if Sarah Siddons is still
switchable between the two systems following the work done on it
recently?

Was the locomotive able to run on a 750V system? That would
presumably mean increased insulation, as well as some means of
changing from one return system to the other (presumably a switch in
each cab working a contactor). Such a switch would presumably not
find favour these days due to the possibility of finger trouble.

There would also be the question of restraining the central shoes,
"main line" switches not being fitted with ramps in case a shoe is a
little low.

--
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