London Banter - View Single Post - 5 car Overground trains to Watford Junction

[email protected] · December 22nd 14, 12:28 PM posted to uk.transport.london

On Mon, 22 Dec 2014 06:14:01 -0600
wrote:
In article

rg, (Recliner) wrote:

Mizter T wrote:
On 21/12/2014 21:49, wrote:
I read in a magazine that Overground trains on the Euston-Watford
service won't be able to be extended to 5 cars until power supply
upgrades have taken place. I don't understand why power supply upgrades
are is needed. This route used to be served by 7 car Bakerloo Line
trains.

Guessing but perhaps "used to" are the operative words in that sentence,
i.e. the power supply kit / arrangements on the line have changed
since 1982.

And maybe 5-car 378s, with modern traction equipment, need more power than
old tube trains (1972 stock, presumably)?

1938 stock actually. I guessed it's the same as the Southern. Massive power
supply upgrades were needed for the switch from camshaft-controlled stock to
power electronics.

You have to wonder why it was necessary if the claims about electronic control
being more efficient are true. Surely that couldn't have been marketing fluff
could it?

--
Spud