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Old January 25th 20, 03:25 PM posted to uk.railway,
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Default Third rail systems return path

On Sat, 25 Jan 2020 10:58:40 -0000 (UTC)
Anna Noyd-Dryver wrote:
On Fri, 24 Jan 2020 11:18:14 -0800 (PST)
d gone, the majority of the Southern was upgraded to 750 V with the only re=

maining 660 V sections in inner London (owing to the interfaces with London=

Underground at Wimbledon and Richmond (because C and D stock were 630 V un=
its whereas S stock is designed to operate at 750 V) and the fact that the =

Does the 750V mean only S stock is allowed on the Wimbledon and Richmond
branches now? How does this affect maintenance trains made up of old tube
stock for example?

Anything else which requires to go down there will also have been rewired
appropriately for 750V.

Some of LUs maintenance stock is ancient. I suspect thats a lot easier said
than done.