General Information on Track Circuits - RGS Online

<strong>General</strong> <strong>Information</strong> on Track Circuits
17 Aluminium Busbars
Withdrawn Document
Uncontrolled When Printed
400
Figure E36
Sleeper Drilled 18 on Centre Line X 95 Deep (Min) Metal
Anchor HSL M12/25 Hilti Code 6692 2 Off
M20 X 50 Long Hex. Hd. Screw
Sleeper Not To Be Drilled
Typical Arrangement if Impedance Bond
Fixing to Concrete Sleepers
Railway Group Approved Code of Practice
GK/RC0752
Issue Two
Date December 1998
Page E37 of 52
3 X 45 degree Chamfer
40 65
140
3 Fillet Weld
7.5 Radius
All Dimensions in mm
16.6 Safety Labelling
Warning labels as described in Section 14 should be fitted to the outside of the
auxiliary coil terminal box cover.
17.1 Introduction
The various layouts and installation arrangements of aluminium busbars are
shown on the drawings as described below:
Inter–track circuit connections are shown in Figure E37 and Figure E38. Details
of busbar lengths and Railway Catalogue Nos. are given in Figure E39, Figure
E40, Figure E41 and Figure E42.
Busbar drillings for connection to the bond and rail side leads are shown in
Figure E28, Figure E29 and Figure E39.
Style S impedance bonds are fitted with down–set busbars. Details can be found
in Figure E37, Figure E38, Figure E39 and Figure E40.
Installation details of the aluminium busbars are shown in Figure E26, Figure
E27, Figure E28, Figure E29 and Figure E43.
Installation of the busbar to earlier types of impedance bond is shown in Figure
E32, Figure E33, Figure E34 and Figure E35.
R A I L T R A C K E 37
Ø 16
18
30
12
"
40
"