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| London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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#1
March 31st 05, 12:40 AM
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Circle Line train amber lights
I was watiting at South Kensington at about 11pm and an outer rail
cirle line train arrived. A few minutes after it arrived, all the amber lights on the outside of the train went off and there was a loud hissing noise. Some staff wandered up the train and it went back to normal. Was this a case of someone pushing the emergency button? Why did *all* the amber lights go off while the doors were still open -- Chris |
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#2
March 31st 05, 01:41 AM
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Circle Line train amber lights
It sounds like the driver just shut the train down and removed his
keys. The hissing noise would be the air venting to atmosphere when the train is shut down, therefore locking the brakes on, and when the keys were removed (or switched off) it cuts off the electrical circuitry to the outside indicator lights. The driver is supposed to shut down his train in this manner every time he has to leave his cab for any reason. wrote: I was watiting at South Kensington at about 11pm and an outer rail cirle line train arrived. A few minutes after it arrived, all the amber lights on the outside of the train went off and there was a loud hissing noise. Some staff wandered up the train and it went back to normal. Was this a case of someone pushing the emergency button? Why did *all* the amber lights go off while the doors were still open -- Chris |
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#3
March 31st 05, 02:12 PM
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Circle Line train amber lights
keys. The hissing noise would be the air venting to atmosphere when
the train is shut down, therefore locking the brakes on, and when the If this locks the brakes on how are trains towed dead if they fail? B2003 |
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#4
March 31st 05, 03:39 PM
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Circle Line train amber lights
"Boltar" wrote in message ups.com... keys. The hissing noise would be the air venting to atmosphere when the train is shut down, therefore locking the brakes on, and when the If this locks the brakes on how are trains towed dead if they fail? Brake release valves. |
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#5
April 1st 05, 03:14 PM
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Circle Line train amber lights
In article ,
Robin Mayes wrote: "Boltar" wrote in message oups.com... keys. The hissing noise would be the air venting to atmosphere when the train is shut down, therefore locking the brakes on, and when the If this locks the brakes on how are trains towed dead if they fail? Brake release valves. Are those the inside cantrail BRV stickers ? I always assumed it was the Brake Reducing Valve for the EP brake, but yours sounds plausible. Nick -- http://www.leverton.org/ ... So express yourself |
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