London Banter - View Single Post

rosenstiel@cix.compulink.co.uk · November 30th 08, 10:30 PM posted to uk.transport.london

In article , (Peter
Beale) wrote:

wrote:
In article ,
(Paul Scott) wrote:

wrote in message
On hybrid sections (e.g. East Putney to Wimbledon) the 4th rail is
at +630v.
That would be the third (positive) rail. Otherwise the 'third rail'
stock wouldn't work too well...

Yes, I meant the outside rail. I was counting across with the
centre as third.

If you count in such a way that the outside ("live") rail is the
fourth, then the centre is the second. If you do it the other way
so that the centre is third, then the live rail is first!

I was assuming, whatever else, that the running rails were first and
second!

Bear in mind that the first third rail systems were the City and South
London and Central London Railway's and theirs were between the running
rails.

--
Colin Rosenstiel