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Post by programmes1 on Oct 20, 2007 8:04:44 GMT
In the control rooms at Coborg St & Earls Court there are no visuals in the diagram as per yellow perils, but when a release is taken does the release button light up when the release is effective?
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Tom
Administrator
Signalfel?
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Post by Tom on Oct 20, 2007 12:04:07 GMT
I believe it does.
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Post by railtechnician on Oct 20, 2007 13:08:38 GMT
I haven't worked at Cobourg since I changed out the controllers GRP desks and I think they've been done again since then.
At Earls Court I can say that the release visuals illuminated for all sites when I was a control room TO. If they didn't light at the end of a site test I would be investigating the problem, 99 times out of a hundred just a blown bulb.
Brian
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Post by c5 on Oct 20, 2007 23:37:32 GMT
Yes.
When the release lever in in the reverse position the release button will light up. It will then stay lit until "pulled up"/ de-selected.
At the more modern sites there is no release button, you simply pull up the signal and the release will automatically take.
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Post by railtechnician on Oct 21, 2007 0:02:06 GMT
Yes. When the release lever in in the reverse position the release button will light up. It will then stay lit until "pulled up"/ de-selected. At the more modern sites there is no release button, you simply pull up the signal and the release will automatically take. Yep those are the sites with 'deadlock' frames and auto release which has pros and cons, one of the cons being that it masks delta track circuit failures until traffic becomes heavy and then someone will notice signals are slow to clear! Brian |
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Deleted
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Post by Deleted on Oct 21, 2007 11:18:30 GMT
earls court control room deffo district line sites do have indeed a release visual when the lever goes to the reverse position except for high st ken where it is a automatic release this works by when it sees a lever in the mid position for longer then 4 1/2 secs it automatically calls for the release lever the signal op has no control of this at all
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Post by railtechnician on Oct 21, 2007 19:03:20 GMT
earls court control room deffo district line sites do have indeed a release visual when the lever goes to the reverse position except for high st ken where it is a automatic release this works by when it sees a lever in the mid position for longer then 4 1/2 secs it automatically calls for the release lever the signal op has no control of this at all Yep deadlock frames make frame testing easy. I think Hounslow Central was the best for that. Turn off air, normalise all levers, setup W-E reverse move, put air on for instant frame test! My favourite place for site testing was Ealing Common and least favourite was Arnos Grove. |
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Tom
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Post by Tom on Oct 21, 2007 21:22:51 GMT
My first night job after passing out was changing a pair of QN6 relays on a deadlock site. I wasn't in the mood for lifting locks whole testing so spent the whole night taking releases.
What's worse was the site was Baker Street (B'loo) so I ended up having to spend a lot of time on the phone to two signalmen... I don't think they liked me very much afterwards!
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