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  • Japanese train stopped fpr six hours by snow.

    From Larry Sheldon@1:2320/100 to All on Mon Dec 15 23:26:24 2014

    From: lfsheldon@gmail.com

    http://iceagenow.info/2014/12/power-outage-caused-snow-halts-bullet-train-6-hours/

    Snow blocked pantographs. Really? I'm no expert but that seems
    predictable and avoidable.
    --
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  • From Nick Sandru@1:2320/100 to Larry Sheldon on Sun Dec 21 09:53:46 2014

    From: nick+mtr@nicksandru.com

    On 12/16/2014 12:26 AM, Larry Sheldon wrote:
    http://iceagenow.info/2014/12/power-outage-caused-snow-halts-bullet-train-6-hours/


    Snow blocked pantographs. Really? I'm no expert but that seems
    predictable and avoidable.

    In the right conditions wet snow freezes on the contact wire and on
    rooftop gear on the trains, making operation impossible (unless you want
    to tear down the catenary of course...).

    --
    Nick Sandru
    Somerville NJ

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  • From Larry Sheldon@1:2320/100 to Nick Sandru on Sun Dec 21 16:25:18 2014

    From: lfsheldon@gmail.com

    On 12/21/2014 08:53, Nick Sandru wrote:
    On 12/16/2014 12:26 AM, Larry Sheldon wrote:
    http://iceagenow.info/2014/12/power-outage-caused-snow-halts-bullet-train-6-hours/

    Snow blocked pantographs. Really? I'm no expert but that seems
    predictable and avoidable.

    In the right conditions wet snow freezes on the contact wire and on
    rooftop gear on the trains, making operation impossible (unless you want
    to tear down the catenary of course...).

    Article said "snow" I think--I can see ice on the wire being a problem I
    guess but it seems like the pan could be heated to keep it clear and a
    sharp edge would "clean" the wire if you could ever get started.

    Might not be worth doing.

    --
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    The fact that they are infallible; and,

    The fact that they learn from their mistakes.


    Quis custodiet ipsos custodes

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  • From Glen Labah@1:2320/100 to Larry Sheldon on Sun Jan 4 22:41:28 2015

    From: gl4317@yahoo.com

    In article <cfovmeF4gfjU1@mid.individual.net>,
    Larry Sheldon <lfsheldon@gmail.com> wrote:

    Article said "snow" I think--I can see ice on the wire being a problem I guess but it seems like the pan could be heated to keep it clear and a
    sharp edge would "clean" the wire if you could ever get started.

    Might not be worth doing.


    On certain nights here in Portland they keep MAX running all night to
    help keep the contact wire clear of ice. They have a special ice
    breaking edge they put on the pantographs to help break off the ice but
    it can't deal with extremely heavy ice, so they have to run the trains
    over it regularly.

    If this type of weather happened more often here they would probably
    have a special heater on the contact wire like this one:

    http://www.rtrtechnologies.com/products/cat-heat/index.html

    --
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