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Snow on the line
Basil Jet wrote:
On 2017\12\12 20:59, Recliner wrote: Mike Bristow wrote: In article , Recliner wrote: Epping and Amersham were both affected, and are about 30 miles apart as the crow flies, and 44 miles apart by track kilometerage. I mentioned Uxbridge, not Epping. ... in the context of "power supply problems" - which may or may not have been caused by iced-up conductor rails. Which were reported all over the network: https://twitter.com/centralline/stat...41391773061120 https://twitter.com/metline/status/939783801387061248 https://twitter.com/northernline/sta...67343521550336 https://twitter.com/jubileeline/stat...91679812505601 I can't think of an explaination for the widespread disruption that /isn't/ ice-on-the-conductor rails - something like the national grid being unable to supply sufficent current to LUL due to their issues would have affected the victoria, circle and bakerloo too: and they didn't report power supply problems. What's a plausible alternative? Problems with substations? Aren't the substations on the deep lines just as exposed to the weather as the substations on the surface lines? Some may be, I think others are in shafts. But not all open lines were affected, either. For example, the District line was fine. The closure of the whole Met and Uxbridge branch of the Picc probably was a power supply problem; the later problem on just the Amersham branch was more likely to have been icing on the rails. |
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