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| Re: Passenger Accounts Re: Stalled WMATA Green Line Train ''Self-Evacuated'' by Its Passengers (1165426) | |||
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Re: Passenger Accounts Re: Stalled WMATA Green Line Train ''Self-Evacuated'' by Its Passengers |
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Posted by RockParkMan on Sat Jul 7 14:04:02 2012, in response to Re: Passenger Accounts Re: Stalled WMATA Green Line Train ''Self-Evacuated'' by Its Passengers, posted by Sand Box John on Fri Jul 6 14:03:53 2012. "Unless WMATA has changed things, as I recall, the blue lights that mark the locations of the emergency trip station / phone box go out when the third rail is de-energized."Lamp indication is not considered positive indication of a dead third rail. Lamps can tell you that the rail is "hot" if they are on but if the lamps are out it may just be that a lamp is "burned out" thereby "killing" the other 4 lamps in the series string. 5 120 volt lamps in series equal a 625=volt lamp array. These lamps when lighted POSITIVELY tell you the track is "hot" but tell you NOTHING either way if they're "out". |
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