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It's a good headline as it harks back to the days of British Rail complaining about points failure due to the wrong type of snow.  However, the chief executive has just been on Radio 4 explaining what actually happened in simplistic terms.  Sounds to me like snow dust got through gaps in the metalwork and caused condensation somewhere in the electronics when the humidity changed rapidly from outside to in the tunnel..
FM
Reference Daniel J* Today at 17:37:
It's a good headline as it harks back to the days of British Rail complaining about points failure due to the wrong type of snow. However, the chief executive has just been on Radio 4 explaining what actually happened in simplistic terms. Sounds to me like snow dust got through gaps in the metalwork and caused condensation somewhere in the electronics when the humidity changed rapidly from outside to in the tunnel.
Actually, the "wrong kind of snow" story was essentially a very similar problem. Very fine snow was being sucked-in through an air intake, and when it melted it shorted-out some of the electrics. It was a genuine design flaw, but BR's PR people hadn't really thought how silly blaming the snow would sound to the GBP...
Eugene's Lair

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