Railway applications - Communication, signalling and processing systems - Application Guide for EN 50129 - Part 2: Safety assurance

This document is a Technical Report about the basic standard. It is applicable to the same systems and addresses the same audience as the standard itself. It enhances information on specific items on the application of EN 50129. The following items are covered, within the scope of this Application Guideline of EN 50129, as follows:  Clause 4 deals with identification and mitigation of failures in the concept, specification and design phases. It is mainly dedicated to designers and verifiers and product safety engineers;  Clause 5 deals with the preparation of a safety case, enhancing points providing the required evidence for safety assessment and approval. It is mainly dedicated to verifiers, validators, safety managers, quality managers and safety engineers;  Clause 6 deals with the activities an Independent Safety Assessor has to carry out. It is mainly dedicated to safety assessors, safety authorities, safety managers and safety approvals. In drafting this guidance, it is assumed that the reader is familiar with the basic structure of the standard. This document does not claim to be exhaustive. It is not a complete compilation of best practices, but only the translation of the knowledge of all the experts of the Working Group in charge of composition of this Application Guideline.

Železniške naprave - Komunikacijski, signalni in procesni sistemi - Vodilo za uporabo EN 50129 - 2. del: Zagotavljanje varnosti

Ta dokument je tehnično poročilo o osnovnem standardu. Velja za iste sisteme in je namenjen istim naslovnikom kot sam standard. Krepi obveščanje o določenih točkah uporabe EN 50129. V okviru tega vodila za uporabo EN 50129 so zajete naslednje točke: Klavzula 4 obravnava identifikacijo in zmanjševanje napak v idejni, specifikacijski in snovalni fazi. V glavnem je namenjena načrtovalcem in preveriteljem ter proizvodnim varnostnim inženirjem; Klavzula 5 obravnava pripravo varnostne analize in izpostavlja točke za zagotavljanje potrebnih dokazov za oceno varnosti in odobritev. V glavnem je namenjena preveriteljem, validatorjem, vodjem varnosti, vodjem kakovosti in varnostnim inženirjem; Klavzula 6 obravnava dejavnosti, ki jih mora opraviti neodvisni ocenjevalec varnosti. V glavnem je namenjena ocenjevalcem varnosti, varnostnim organom, vodjem varnosti in varnostnim odobritvam. Pri sestavljanju tega vodila se je domnevalo, da je bralec seznanjen z osnovno strukturo standarda. Ta dokument ni izčrpen. Ni popolna kompilacija dobrih praks, pač pa le prevod znanja vseh strokovnjakov delovne skupine, pristojne za sestavo tega vodila za uporabo.

General Information

Status
Withdrawn
Publication Date
15-Dec-2009
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
24-Oct-2018

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SLOVENSKI STANDARD
SIST-TP CLC/TR 50506-2:2010
01-februar-2010
Železniške naprave - Komunikacijski, signalni in procesni sistemi - Vodilo za
uporabo EN 50129 - 2. del: Zagotavljanje varnosti
Railway applications - Communication, signalling and processing systems - Application
Guide for EN 50129 - Part 2: Safety assurance
Ta slovenski standard je istoveten z: CLC/TR 50506-2:2009
ICS:
35.240.60 Uporabniške rešitve IT v IT applications in transport
transportu in trgovini and trade
45.020 Železniška tehnika na Railway engineering in
splošno general
SIST-TP CLC/TR 50506-2:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CLC/TR 50506-2:2010

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SIST-TP CLC/TR 50506-2:2010

TECHNICAL REPORT
CLC/TR 50506-2

RAPPORT TECHNIQUE
December 2009
TECHNISCHER BERICHT

ICS 93.100


English version


Railway applications -
Communication, signalling and processing systems -
Application Guide for EN 50129 -
Part 2: Safety assurance











This Technical Report was approved by CENELEC on 2009-07-17.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.





CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels


© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TR 50506-2:2009 E

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SIST-TP CLC/TR 50506-2:2010
CLC/TR 50506-2:2009 – 2 –
Foreword
This Technical Report was prepared by SC 9XA, Communication, signalling and processing systems, of
Technical Committee CENELEC TC 9X, Electrical and electronic applications for railways.
The text of the draft was submitted to vote in accordance with the Internal Regulations, Part 2,
Subclause 11.4.3.3 (simple majority) and was approved by CENELEC as CLC/TR 50506-2 on 2009-07-17.
__________

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SIST-TP CLC/TR 50506-2:2010
– 3 – CLC/TR 50506-2:2009
Contents
Page
Introduction . 5
1 Scope . 6
2 References . 6
3 Terms, definitions, symbols and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Symbols and abbreviated terms . 8
4 Safety design for signalling subsystems . 10
4.1 Safety principles . 10
4.2 Components development guideline . 19
4.3 Specific implementation examples . 25
5 Safety case structure in relation with associated documents and activities . 28
5.1 Introduction . 28
5.2 Safety Case for Signalling Systems . 28
5.3 Recommendations regarding the fulfilment of the requirements of tables in EN 50129:2003,
Annex E . 62
6 Safety assessment and approval . 68
6.1 Guidance on the concept of Safety assessment .
...

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