AC Electrified Lines Flashcards
If you told of damaged, loose or malfunctioning APCO
balise, or a missing sign associated with power changeover locations, and the defect or damage will affect the safe operation of bi-mode trains. What must you do? AC 4.3 (1)
You must make sure that all drivers of bi-mode trains are told about this before they pass over the balise.
What is the minimum distance you must remain or keep any tools and materials away from live OHL? AC 4.1
2.75 metres (9 feet) in any other direction from live
OLE.
What types of incident must you immediately contact the ECO (or arrange for this to be done) if you become aware of? 6.1.1 (5)
• a derailment
• a lineside fire
• a fire on a vehicle or train
• a person in contact with or in danger of coming into contact with
the OLE
• an incident or other emergency requiring, or likely to require, the electricity supply to be switched off.
If you receive a message from another person about an emergency,you must pass on all this information to the ECO.
When may you authorise the movement of an electric train or a bi-mode train operating in electric mode if it becomes necessary, and what must be sure of? 11.1 (3)
- go beyond the signal or block marker protecting an isolated section or sub-section towards the limiting point as shown in isolation instructions
- make an unsignalled movement towards the limiting point as shown in isolation instructions.
However, you must be sure that the approach to the isolated section is protected by a possession limit board (PLB) and three detonators, 20 metres (approximately 20 yards) apart at the limiting point.
If the ECO tells you that sequential tripping or tripping has taken place, what must you do? 13.1 (1)
Stop the train involved (or arrange for this to be
done if the train is no longer in your area of control).
What must you do if you receive a report of a line light going out, the ADD operating or possible damage to the OLE? 13.1 (1)
You must protect any line that may be
affected, as shown in the train signalling regulations.
If examining the train or OLE, what must you find out about how the driver can provide information about the cause of the incident? 13.2 (1)
If the driver can provide the information without leaving the train.
What must you find out from the driver or anyone else who is going to carry out an examination in regards to the conditions? 13.2 (1)
You must find out whether they consider the conditions at the location of the train to be darkness or whether it would be difficult to get a clear view of the pantograph or OLE owing to conditions such as fog or bright sunlight.
When examining the train or OLE, what must you ask the drier of a train passing on an adjacent line? 13.2 (1)
You must ask the driver of a train passing on an adjacent line to tell you if they can see any damage to the OLE at the location where the train is standing.
When examining the train or OLE, you must not tell the driver to leave the train, or allow anyone else to
carry out the examination until the OLE has been switched off, unless at least one of what applies? 13.2 (2)
- It is daylight and the person who is to carry out the examination considers that it will not be difficult to get a clear view of the pantograph or OLE.
- It has been confirmed that there is no damage to the OLE at the location where the train is standing.
When examining the train or OLE, who must tell the driver when they can leave the train to examine the
train for damage to the OLE, a pantograph or the train. If the examination is to be carried out by anyone else, then who must tell that person when the examination can start. 13.2 (1)
The signaller.
