General Information on Track Circuits - RGS Online
General Information on Track Circuits - RGS Online
General Information on Track Circuits - RGS Online
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<str<strong>on</strong>g>General</str<strong>on</strong>g> <str<strong>on</strong>g>Informati<strong>on</strong></str<strong>on</strong>g> <strong>on</strong> <strong>Track</strong> <strong>Circuits</strong><br />
C<strong>on</strong>tents<br />
Railway Group Approved Code of Practice<br />
GK/RC0752<br />
Issue Two<br />
Date December 1998<br />
Page 1 of 2<br />
Secti<strong>on</strong> Descripti<strong>on</strong> Page<br />
Part A<br />
Withdrawn Document<br />
Unc<strong>on</strong>trolled When Printed<br />
Issue Record A1<br />
Distribtui<strong>on</strong> A1<br />
Health and Safety Resp<strong>on</strong>sibilities A1<br />
Supply A1<br />
Part B<br />
1 Purpose B1<br />
2 Scope B1<br />
3 Glossary of Terms B1<br />
4 Limitati<strong>on</strong>s B5<br />
5 Introducti<strong>on</strong> B6<br />
6 Electrical Behaviour of Railway track B7<br />
7 Operati<strong>on</strong> and Adjustment of the Simple <strong>Track</strong> Circuit B9<br />
8 Train Shunt Imperfecti<strong>on</strong> B10<br />
9 Detecti<strong>on</strong> of “Lightweight” Vehicles B12<br />
10 <strong>Track</strong> Circuit Insulati<strong>on</strong>s B13<br />
11 B<strong>on</strong>ding B16<br />
12 Mutual Interference Between <strong>Track</strong> <strong>Circuits</strong> B18<br />
13 Detecti<strong>on</strong> of Rail Breaks B19<br />
14 Jointless <strong>Track</strong> <strong>Circuits</strong> B20<br />
15 <strong>Track</strong> <strong>Circuits</strong> and Electric Tracti<strong>on</strong> B21<br />
16 The Impedance B<strong>on</strong>ds B24<br />
Part C Schematic Symbols<br />
1 Introducti<strong>on</strong> C1<br />
2 Drawing Symbols <strong>on</strong> B<strong>on</strong>ding Plans C1<br />
3 Tracti<strong>on</strong> Return B<strong>on</strong>ding Symbols C8<br />
4 Civil Engineer’s Scale Diagrams C10<br />
Part D Planning and Design<br />
1 Introducti<strong>on</strong> D1<br />
2 Resp<strong>on</strong>sibilities for B<strong>on</strong>ding Design D1<br />
3 <strong>Track</strong> Circuit Nomenclature D2<br />
4 Choice of <strong>Track</strong> Circuit Type D3<br />
5 Cut Secti<strong>on</strong>s D5<br />
6 Operating Times D6<br />
7 <strong>Track</strong> Circuit Interrupters D8<br />
8 Length of <strong>Track</strong> <strong>Circuits</strong> D8<br />
9 <strong>Track</strong> Circuit Gaps and Staggered IRJs D9<br />
10 Selective Operati<strong>on</strong> of <strong>Track</strong> <strong>Circuits</strong> D9<br />
11 Bad Rail Surface D9<br />
12 Emergency Cross–overs D10<br />
13 Insulated Rail Joints and B<strong>on</strong>ding D10<br />
14 <strong>Track</strong> Circuit Equipment Positi<strong>on</strong>ing D19<br />
15 Layout and Wiring of Lineside Apparatus Housing D19<br />
16 Duplicate Rail C<strong>on</strong>necti<strong>on</strong>s D20<br />
17 Communicati<strong>on</strong>s D21<br />
RAILTRACK 1
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