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AS 1085.21 Railway Track Material Part 21: Turnouts, Switches and Crossings Draft for Public Comment

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AS 1085.21 Railway Track Material Part 21: Turnouts, Switches and Crossings Draft for Public Comment AS 1085.21:2020 Railway track material Part 21: Turnouts, switches and crossings crossings and Infrastructure Standard switches Please note this is a RISSB Australian Standard® draft Document content exists for RISSB product development1085.21 purposes onlyComment and should not be relied upon or considered as final published content. Turnouts, AS 21: Any questions in relation to this document or RISSB’s accredited development process should be referred to RISSB. Public Part for RISSB Office Phone: Email: Web: (07) 3724 0000 Draftinfo@ri ssb.com.au www.rissb.com.au Overseas: +61 7 3724 0000 material AS 1085.21 Assigned Standard Development Manager Name:track Phone: Email: Risharda Robertson 0438 879 916 [email protected] Railway AS 1085.21:2020 Railway track material Part 21: Turnouts, switches and crossings Notice to users This RISSB product has been developed using input from rail experts from across the rail industry and represents good practice for the industry. The reliance upon or manner of use of this RISSB product is the sole responsibility of the user who is to assess whether it meets their organisation’s operational environment and risk profile. AS 1085.21:2020 Railway track material Part 21: Turnouts, switches and crossings crossings Draft history (Draft history applies only during development) and Draft version Draft date Notes PC Draft 20/12/2019 Draft for Public Comment Copyright switches © RISSB All rights are reserved. No part of this work can be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of RISSB, unless otherwise permitted under the Copyright Act 1968. 1085.21 Comment Turnouts, Objective AS 21: The objective of this Standard is to provide information and requirements for the design and manufacture of turnouts, switches and crossings, and their components. Public Turnout switches and crossings are vital trackPart components that allow and control the safe diversion of rail vehicles from one track to another or to cross other tracks. for Compliance Draft There are two types of control contained within Australian Standards developed by RISSB: 1. Requirements.material 2. Recommendations. Requirements – it is mandatory to follow all requirements to claim full compliance with the Standard. Requirementstrack are identified within the text by the term ‘shall’. Recommendations – do not mention or exclude other possibilities but do offer the one that is preferred. Recommendations are identified within the text by the term ‘should’. Recommendations recognise that there could be limitations to the universal application of the control, i.e. the identified control is not able to be applied or other controls are more appropriate or better. For compliance purposes, where a recommended control is not applied as written in the standard it could be Railwayincumbent on the adopter of the standard to demonstrate their actual method of controlling the risk as part of their WHS or Rail Safety National Law obligations. Similarly, it could also be incumbent on an adopter of the standard to demonstrate their method of controlling the risk to contracting entities, or interfacing organisations where the risk may be shared. Controls in RISSB standards address known railway hazards are addressed in a Appendix A. RISSB ABN 58 105 001 465 Page 1 Accredited Standards Development Organisation AS 1085.21:2020 Railway track material Part 21: Turnouts, switches and crossings Contents 1 Scope and general ....................................................................................................... 4 1.1 Scope ............................................................................................................. 4 1.2 Referenced documents ................................................................................... 4 1.3 Definitions ....................................................................................................... 5 2 Turnout design ............................................................................................................. 7 2.1 General ........................................................................................................... 7 2.2 Design parameters .......................................................................................... 7 2.3 Tangential ..................................................................................................... 15 2.4 Secant .......................................................................................................... 20 3 Interfaces .................................................................................................................. 23 3.1 General ......................................................................................................... 23 3.2 Operating equipment .................................................................................... 23 3.3 Insulation ...................................................................................................... 24 3.4 Installation .................................................................................................... 24 3.5 Track and structure interfaces ....................................................................... 24 4 Manufacture ............................................................................................................... 25 4.1 Materials, tests and standards ...................................................................... 25 4.2 Rails, fishplates and sleeper plates ............................................................... 25 4.3 Castings ........................................................................................................ 25 4.4 Steel and iron castingsAS ................................ 1085.21 .................................................. 26 4.5 Manganese steel castings ............................................................................. 26 4.6 Fastening ...................................................................................................... 30 4.7 Flame cutting ................................................................................................ 31 4.8 Welding ......................................................................................................... 31 4.9 Hardening ..................................................................................................... 31 4.10 Rail drilling .................................................................................................... 32 4.11 Sawing and machiningDraft ................................ for Public................................ Comment .................. 32 4.12 Riveting ......................................................................................................... 32 4.13 Fitting ............................................................................................................ 32 4.14 Forgings ........................................................................................................ 32 4.15 Cast iron blocks ............................................................................................ 32 4.16 Cast steel blocks ........................................................................................... 32 4.17 Special heel bolt ferrules ............................................................................... 33 4.18 Nylon bushes ................................................................................................ 33 Railway4.19 track Epoxy material gluing of cro Partssings ................................21: Turnouts,................................ switches and............. crossings 33 4.20 Switch assembly ........................................................................................... 33 4.21 Crossing assembly ........................................................................................ 33 4.22 Tolerances .................................................................................................... 34 4.23 Stamping ...................................................................................................... 36 4.24 Match marking .............................................................................................. 37 4.26 Final assembly and inspection ...................................................................... 37 RISSB ABN 58 105 001 465 Page 2 Accredited Standards Development Organisation AS 1085.21:2020 Railway track material Part 21: Turnouts, switches and crossings 4.27 Preparation for dispatch ................................................................................ 37 5 Product acceptance .................................................................................................... 38 5.1 General ......................................................................................................... 38 5.2 Type approval ............................................................................................... 38 5.3 Certificate of compliance ............................................................................... 38 5.4 Trial assembly ............................................................................................... 38 5.5 Assembly maintenance manuals and drawings ............................................. 38 crossings Appendix Contents Appendix A Hazard register ...........................................................................................and 39 Appendix
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