Element 4 personal track Safety Flashcards
What is the Voltage in the Overhead Wires?
25,000 volts. (25 kv
What is the minimum safe distance that you should be from the Overhead Wire system?
9ft or cab floor level
What are the three main types of Overhead Wire structures?
Cantilever Portal & Wire Head Span
Which Overhead Wire Structure only spans one line
Cantilever
Which Overhead Wire Structures spans more than one line?
Portal and Wire Head Span
What is the Bottom Wire of the Overhead Wires known as?
Contact Wire
What is the Top Wire of the Overhead Wires known as
Catinery Wire
Which wire joins the Catinery to the Contact within the Overhead Wire System?
Dropper Wire
What is the name of the Wire that runs along the side of the OHL Structures?
Along track Conductor
Who controls the Overhead wire system?
Electrical Control Office
How would you contact the ECO in an emergency, from either a BR Telephone or via the NRN?
Dial 176 on a BR Telephone
What is the minimum position of safety where the line speed is 100 m.p.h. or less?
4ft
What is the minimum position of safety where the line speed is over 100 m.p.h.
6ft 6ins
When walking on or near the Running Line which direction should you walk?
Where possible it should be facing On Coming Traffic.
What information does the Individual Structure Plate give you in Overhead Lines area?
Route, Miles from source and individual structure no.
What does a Blue and White Chequered board denote?
No refuge at this location.
Describe a Limited Clearance Board.
It comprises of Red & White cheques with the words Warning (in the top left-hand corner) and Limited Clearance (in the bottom right hand corner).
How is a Lineside Telephone identified
On the telephone cabinet there will be a white plate with a black Saint Andrews cross.
In an area where there are four tracks what do we call the space between both sets of tracks?
10ft.
If you were caught in a area of Limited Clearance and you could not get to a position of safety what must you do?
Lie down in the 6ft, lower to the ground anything that you are carrying and tuck in any loose clothing.
In a Two-Track layout what is the space between the tracks known as?
6ft
What is the definition of on or near the Running Line?
Within 10ft (3 meters) of the nearest rail of any line or on the line itself.
What is the definition of on the lineside?
Within the area between the railway boundary fencing and the point that is called ‘on or near the line’.
If on the line side how would you acknowledge the audible warning from an approaching train?
Get to a position of safety and raise one arm above your head.
