Quote:
Originally Posted by Deathbyteacup
So can I assume that if the live wire does fall onto the train itself, that the train is designed to act as a sort of faraday cage to protect the people inside, even DMU's / Diesels?
And the power would have to be confirmed off also before evacuation?
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Generally yes, but there may be cases when this is not possible, it is best for the driver/guard to weigh up the options and make a choice.
I doubt they are designed as faraday cages, but in all likelyhood would act as one.
Anything that would not normally come in contact with the OLE could potentially bring it down, the bonnet of a car on a passing freight train for example.
Also, the ADD on 319s is far simpler than you might think. The pantograph is raised by air pressure in a pipe that runs through the pantograph itself. The ADD device is simply a break in the air pipe, should the pantograph rise to far, thereby releasing air pressure and dropping the pantograph. The only other way a pan on a 319 will drop automatically is if the carbon strips on the pantograph are damaged or dislodged, releasing air pressure from the conduit that runs underneath.
Bedford to Harlington on the MML has a speed restriction for Electrics during high winds because of the sway it causes.