January 17th 08, 02:45 PM
posted to uk.transport.london, uk.railway
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external usenet poster
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First recorded activity at LondonBanter: Jul 2003
Posts: 1,346
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North London Line AC/DC question
Why do the trains on the NLL switch over to 25Kv AC at Hackney Wick
and then switch back to DC at Dalston when the 3rd rail is continuous
along that section anyway? Why not just stay on DC and save the wear
and tear on the pantograph?
B2003
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