Railway Procedure Flashcards
List the different railway systems operating in the London area
Network Rail London Underground limited Docklands Light Railway Heathrow Express Link Tranlink Post Office Railway
List the different features of a general railway track and identify the safe area
Embankment Slope Cess (safe) Sleeper Power Rail Running Rails Ballast Shoulder
List the types of railway engines that can be found
Diesel
Electric
Diesel electric
Pantograph Electric
What does the Overhead Line Equipment operate up to?
25kV AC
What are the two types of electrified track?
Third Rail System
Fourth Rail System
List the features of a Third Rail System
50-75mm higher than the Running Rails
Operate up to 1200V DC
List the features of a Fourth Rail System
Commonly found at London Underground Stations
Fourth Rail lies between the Running Rails
Negative current up to 250V DC
List the Hazards associated with Railways
Access & Location Electric power supplies Uneven surfaces & trip hazards Detonators Movement of trains HAZMAT's Railway Points
What is the safety distance for Detonators
30m
What is a Railway Point
These are moving rails allowing rail tracks to converge or diverge. Operated remotely
Additional hazards in tunnels or subsurface
Unpredictable & rapid spread of smoke/fire.
Rapid rise in temperature.
Undetected fire travel in voids and ducts.
Communication difficulties.
Long travel distances.
Restricted access & working space.
Large number of passengers in unfamiliar environment.
Physiological effects on firefighters.
What is the safety distance when operating in the vicinity of track before an ORA has been carried out?
3m
What are the four levels of control that can be applied to rail vehicles and traction current?
Inform infrastructure manager of an incident.
Request rail vehicles ‘run at caution’.
Request rail vehicles stopped.
Request power off.
What additional risk control measures are to be implemented if working within 3m of track?
Hi-Visibility clothing.
Lookouts placed either side of incident.
Evacuation routes determined.
Minimum staff deployed to complete task.
FF not enter tunnels until confirmed that trains have stopped.
Avoid stepping on conductor rails & assume power is live.
Not approach closer than 3m to OLE unless carrying out a rescue, then it’s 1m.
Withdraw immediately after op complete.
What should a FF do if they are on the track when a train is approaching?
Lie face down in the Cess, or between sets of tracks.
What should a lookout take with them?
Handheld radio, in contact with IC.
Acme Thunderer whistle.
Wolf lamp or hand lamp If dark.
Can the Safety Officer change their location without informing the IC
No
What is the minimum warning the safety officer should give crews?
30 seconds.
How should safety officers alert approaching trains of FF working on the line? (Day&Night)
Day - hold both arms straight above head
Night - waving bright light rapidly side to side.
What can be found at LUL stations to assist firefighters at an incident?
Fixed Installations. Intervention Points. Jubilee Line Extension. Leaky Feeder Systems. LFB Plans Boxes.
What kind of rail system do DLR trains operate on, and what voltage.
Third rail
750V DC
What is the safe working distance from DLR running rails?
2m
List Hazards at incidents in railway arches
Difficult access. Lack of openings - ventilation. Arduous working conditions. Complicated layout. Contents. Potential for serious disruption to the rail network.
What should be considered at a railway arch fire?
Use of FRU or USAR tac advisor to assist in access. Minimum 45mm weight of attack. Use of TIC to locate fire. Frequent crew rotation. Need for good communications.
