Appendix ANNEX G GAUGE
United Kingdom
505-1
505-1
- (a)
zone for equipment awqay from wheels
- (b)
zone for equipment in immeditate proximity of wheels
- (c)
zone for contact ramp brushes
- (d)
zone for wheels and other parts coming into contact with the rails
- (e)
zone occupied exclusively by the wheels
(1)
Limit for parts located outside the axle ends (guard irons, sanders, etc.) not to be exceeded for running over detonators. This limit may however be disregarded for parts located between the wheels, provided these parts remain within the wheel track.
(2)
Maximum theoretical width of the flange profile in the case of check-rails
(3)
Effective limit position of the outside surface of the wheel and of the parts associated with this wheel
(4)
When the vehicle is in any position whatsoever on a curve of radius R = 250 m (minimum radius for contact rampo installation) and a track width of 1 465 mm, no part of the vehicle likely to descend to less than 100 mm from the running surface, except for the contact brush, should be less than 125 mm from the track centre.
For parts located inside the bogles, this dimension is 150 mm.
(5)
Effective limit position of the internal surface of the wheel when the axle is against the opposite rail. This dimension varies with gauge widening.
GA, GB AND GC, KINEMATIC GAUGES
N.B.:
Up to a height of 3 250 mm, the reference profile of GA, GB and GC gauges is identical.
LOWER PARTS
Note:
On inclined connections with a radius R ≥ 500 m, the vertical measurements shown in diagrams A and B above mut be reduced by (R in m. If 625 ≥ R ≥ 500 m, the measurement 80 in diagram A is cancelled.
KINEMATIV GAUGE FOR THE LOWER PARTS IN THE AREA OF THE RAIL, THE AREA TAKEN UP BY TRACK BRAKES AND THE AREA OF THE CENTRE LINE OF THE TRACK
KINEMATIC GAUGE FOR THE LOWER PARTS
(1)
l = width of track.
(2)
On concave or convex inclined connections with a radius R ≥ 500 m, this dimension must be reduced by