On 18/04/2016 06:41, Charles Ellson wrote:


More expensive, obsolete, less efficient and it's heading toward 25kV
territory.

just as the DC line does beyond Harrow?

That was electrified over a century ago.

Maybe that line was electrified over a century ago, but lots of the SE
were electrified with third rail, most recently the mainline to Weymouth
(in the 90s?)

"heading towards 25kV territory" is a red herring.

--
Colin