Space systems - Safety requirements - Part 1: System safety (ISO 14620-1:2002)

ISO 14620-1:2002 defines the safety programme and the technical safety requirements that are implemented in order to comply with the safety policy as defined in ISO 14300-2. It is intended to protect flight and ground personnel, the launch vehicle, associated payloads, ground support equipment, the general public, public and private property, and the environment from hazards associated with space systems. Launch site operations are described by ISO 14620-2.
The safety policy is applied by implementing a system safety programme, supported by risk assessment, which can be summarized as follows: hazardous characteristics (system and environmental hazards) and functions with potentially hazardous failure effects are identified and progressively evaluated by iteratively performing systematic safety analyses; the potential hazardous consequences associated with the system characteristics and functional failures are subjected to a hazard reduction sequence whereby hazards are eliminated from the system design and operations, hazards are minimized, and hazard controls are applied and verified; the risks that remain after the application of a hazard elimination and reduction process are progressively assessed and subjected to risk assessment, in order to show compliance with safety targets, support design trades, identify and rank risk contributors, support apportionment of project resources for risk reduction, assess risk reduction progress, and support the safety and project decision-making process (e.g. waiver approval, residual risk acceptance); the adequacy of the hazard and risk control measures applied are formally verified in order to support safety validation and risk acceptance; safety compliance is assessed by the project and safety approval obtained from the relevant authorities.
ISO 14620-1:2002 is applicable to all space projects where during any project phase there exists the potential for hazards to personnel or the general public, space flight systems, ground support equipment, facilities, public or private property, or the environment.
The imposition of these requirements on the project suppliers' activities requires that the customer's project product assurance and safety organization also respond to these requirements in a manner which is commensurate with the project's safety criticality.
When viewed from the perspective of a specific programme or project context, the requirements defined in ISO 14620-1:2002 should be tailored to match the genuine requirements of a particular profile and circumstances of a programme or project.

Raumfahrtsysteme - Sicherheitsanforderungen - Teil 1: Systemsicherheit (ISO 14620-1:2002)

1.1   Allgemein
Diese Europäische Norm legt das Sicherheitsprogramm und die sicherheitstechnischen Anforderungen fest, die in Übereinstimmung mit der in ISO 14300 2 festgelegten Sicherheitsleitlinien umzusetzen sind, um Flug- und Bodenpersonal, Träger, zugehörige Nutzlasten, Bodendienstgeräte, die allgemeine Öffentlichkeit, öffentliches und privates Eigentum sowie die Umwelt vor Gefährdungen im Zusammenhang mit europäischen Raumfahrtsystemen zu schützen. Abschussbasisoperationen sind in ISO 14620 2 beschrieben.
Die Sicherheitsleitlinien werden durch Umsetzung eines Sicherheitsprogramms, unterstützt durch eine Risikobewertung, verwirklicht, das sich wie folgt zusammenfassen lässt:
a)   Gefährdungsmerkmale (System- und Umweltgefährdungen) und Funktionen mit potentiell gefährdenden Ausfall-/Fehlerauswirkungen werden identifiziert und schrittweise durch iterative Durchführung systematischer, deterministischer Sicherheitsanalysen bewertet;
b)   potentielle Gefährdungsfolgen im Zusammenhang mit den Merkmalen und Funktionsausfällen/-fehlern des Systems werden einer Gefährdungsreduzierungssequenz unterzogen, wobei:
1)   Gefährdungen aus dem Systemdesign und -betrieb beseitigt;
2)   Gefährdungen minimiert;
3)   Gefährdungskontrollmaßnahmen angewandt und verifiziert werden.
c)   Die nach Durchführung des Gefährdungsbeseitigungs- und -reduzierungsprozesses verbleibenden Risiken werden schrittweise bewertet und einer Risikobewertung unterzogen, um:
1)   die Übereinstimmung mit den Sicherheitszielen aufzuzeigen;
2)   vergleichende Designbewertungen zu unterstützen;
3)   Risikoverursacher festzustellen und einzustufen;
4)   die Zuteilung von Projektmitteln zur Risikoreduzierung zu unterstützen;
5)   den Fortschritt der Risikoreduzierung zu beurteilen;
6)   den Prozess von Sicherheits- und Projektentscheidungsfindungen (z. B. Sonderfreigaben, Restrisikobilligung) zu unterstützen.
d)   Die Angemessenheit der Gefährdungs- und Risikokontrollmaßnahmen wird formal verifiziert, um die Beglaubigung d

Systèmes spatiaux - Exigences de sécurité - Partie 1: Sécurité système (ISO 14620-1:2002)

1.1 Généralités
La présente Norme européenne définit le programme de sécurité et les exigences techniques  de sécurité mises en �uvre pour se conformer à la politique de sécurité définie dans la norme ISO 14300-2. Elle vise à protéger le personnel de vol et le personnel au sol, le lanceur, les charges utiles associées, les équipements de support au sol, le grand public, les biens publics et privés et l'environnement contre les dangers associés aux systèmes spatiaux. Les opérations sur la base de lancement sont décrites dans la norme ISO 14620-2.
La politique de sécurité est appliquée par la mise en �uvre d'un programme de sécurité système, reposant sur une évaluation des risques, qui peut être résumé comme suit :
a) les caractéristiques dangereuses (dangers liés au système et à l'environnement) et les fonctions présentant des effets potentiellement dangereux liés à des défaillances sont identifiées et progressivement évaluées en effectuant de manière itérative des analyses systématiques de sécurité ;
b) les conséquences potentiellement dangereuses associées aux caractéristiques du système et aux défaillances fonctionnelles sont soumises à une séquence de réduction des dangers aux termes de laquelle :
1) des dangers sont supprimés par la conception du système et par sa mise en �uvre opérationnelle ;
2) des dangers sont minimisés ;
3) des opérations de maîtrise des dangers sont appliquées et vérifiées.
c) les risques qui subsistent après application du processus d'élimination et de réduction des dangers sont soumis à une évaluation progressive des risques, dans le but :
1) d'assurer la conformité avec les objectifs de sécurité ;
2) de prendre en compte des comparaisons de conception ;
3) d'identifier et de classer les facteurs contribuant aux risques ;
4) de considérer une répartition des ressources du projet pour réduire les risques ;
5) d'évaluer l'état d'avancement de la réduction des risques ;
6) de consolider le processus de prise de décision du pr

Space systems - Safety requirements - Part 1: System safety (ISO 14620-1:2002)

General Information

Status
Withdrawn
Publication Date
30-Nov-2002
Withdrawal Date
17-Apr-2018
Technical Committee
Drafting Committee
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
18-Apr-2018

RELATIONS

Effective Date
25-Apr-2018

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SLOVENSKI STANDARD
SIST EN ISO 14620-1:2004
01-maj-2004
Space systems - Safety requirements - Part 1: System safety (ISO 14620-1:2002)
Space systems - Safety requirements - Part 1: System safety (ISO 14620-1:2002)

Raumfahrtsysteme - Sicherheitsanforderungen - Teil 1: Systemsicherheit (ISO 14620-

1:2002)

Systemes spatiaux - Exigences de sécurité - Partie 1: Sécurité systeme (ISO 14620-

1:2002)
Ta slovenski standard je istoveten z: EN ISO 14620-1:2002
ICS:
49.140 Vesoljski sistemi in operacije Space systems and
operations
SIST EN ISO 14620-1:2004 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 14620-1:2004
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SIST EN ISO 14620-1:2004
EUROPEAN STANDARD
EN ISO 14620-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2002
ICS 49.140
English version
Space systems - Safety requirements - Part 1: System safety
(ISO 14620-1:2002)

Systèmes spatiaux - Exigences de sécurité - Partie 1: Raumfahrtsysteme - Sicherheitsanforderungen - Teil 1:

Sécurité système (ISO 14620-1:2002) Systemsicherheit (ISO 14620-1:2002)
This European Standard was approved by CEN on 24 June 2002.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official

versions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,

Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14620-1:2002 E

worldwide for CEN national Members.
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SIST EN ISO 14620-1:2004
EN ISO 14620-1:2002 (E)
Contents
page

Foreword......................................................................................................................................................................5

Introduction .................................................................................................................................................................6

1 Scope ..............................................................................................................................................................6

1.1 General............................................................................................................................................................6

1.2 Field of application ........................................................................................................................................7

1.3 Tailoring..........................................................................................................................................................7

2 Normative references ....................................................................................................................................7

3 Terms, definitions and abbreviated terms ..................................................................................................7

3.1 Terms and definitions....................................................................................................................................7

3.2 Abbreviated terms .......................................................................................................................................12

4 System safety programme..........................................................................................................................12

4.1 Scope ............................................................................................................................................................12

4.2 Safety organization......................................................................................................................................13

4.2.1 General..........................................................................................................................................................13

4.2.2 Safety representative...................................................................................................................................13

4.2.3 Reporting lines.............................................................................................................................................13

4.2.4 Safety integration.........................................................................................................................................13

4.2.5 Coordination with others ............................................................................................................................13

4.3 Safety representative access and authority..............................................................................................13

4.3.1 Access...........................................................................................................................................................13

4.3.2 Delegated authority to reject - stop work..................................................................................................13

4.3.3 Delegated authority to interrupt operations..............................................................................................13

4.3.4 Conformance................................................................................................................................................13

4.3.5 Approval of reports......................................................................................................................................14

4.3.6 Review...........................................................................................................................................................14

4.3.7 Representation on boards ..........................................................................................................................14

4.4 Safety risk management..............................................................................................................................14

4.4.1 Risks..............................................................................................................................................................14

4.4.2 Hazard assessment .....................................................................................................................................14

4.4.3 Preferred measures .....................................................................................................................................14

4.5 Project phases and safety review cycle ....................................................................................................14

4.5.1 Progress meetings.......................................................................................................................................14

4.5.2 Project reviews.............................................................................................................................................15

4.5.3 Safety programme review ...........................................................................................................................17

4.5.4 Safety data package ....................................................................................................................................17

4.6 Safety programme plan ...............................................................................................................................17

4.6.1 Implementation.............................................................................................................................................17

4.6.2 Safety activities............................................................................................................................................17

4.6.3 Definition.......................................................................................................................................................17

4.6.4 Description ...................................................................................................................................................18

4.6.5 Safety and project engineering activities..................................................................................................18

4.6.6 Supplier and sub-supplier premises..........................................................................................................18

4.6.7 Conformance................................................................................................................................................18

4.7 Safety certification.......................................................................................................................................18

4.8 Safety training ..............................................................................................................................................18

4.8.1 Overall training.............................................................................................................................................18

4.8.2 Participation .................................................................................................................................................19

4.8.3 Detailed technical training ..........................................................................................................................19

4.8.4 Product specific training.............................................................................................................................19

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SIST EN ISO 14620-1:2004
EN ISO 14620-1:2002 (E)

4.8.5 Records.........................................................................................................................................................19

4.8.6 Identification.................................................................................................................................................19

4.9 Accident/incident reporting and investigation .........................................................................................19

4.10 Safety documentation .................................................................................................................................19

4.10.1 General..........................................................................................................................................................19

4.10.2 Customer access .........................................................................................................................................19

4.10.3 Supplier review ............................................................................................................................................19

4.10.4 Documentation.............................................................................................................................................20

4.10.5 Safety data package ....................................................................................................................................20

4.10.6 Safety deviations and waivers....................................................................................................................20

4.10.7 Verification tracking log..............................................................................................................................21

4.10.8 Lessons-learned file ....................................................................................................................................21

5 Safety engineering.......................................................................................................................................21

5.1 Safety engineering policy ...........................................................................................................................21

5.1.1 General..........................................................................................................................................................21

5.1.2 Elements.......................................................................................................................................................21

5.1.3 Lessons learned...........................................................................................................................................22

5.2 Safety design principles .............................................................................................................................22

5.2.1 Human life consideration............................................................................................................................22

5.2.2 Design selection ..........................................................................................................................................22

5.2.3 System safety order of precedence...........................................................................................................22

5.2.4 Environmental compatibility.......................................................................................................................23

5.2.5 Safe without services ..................................................................................................................................23

5.2.6 Fail safe design............................................................................................................................................23

5.2.7 Hazard detection - Signalling and safing ..................................................................................................23

5.2.8 Access ..........................................................................................................................................................24

5.3 Safety risk reduction and control...............................................................................................................24

5.3.1 Severity .........................................................................................................................................................24

5.3.2 Failure tolerance requirements ..................................................................................................................26

5.3.3 Design for minimum risk.............................................................................................................................27

5.3.4 Probabilistic safety targets.........................................................................................................................27

5.4 Identification and control of safety critical functions..............................................................................28

5.4.1 Identification.................................................................................................................................................28

5.4.2 Inadvertent operation ..................................................................................................................................28

5.4.3 Provisions.....................................................................................................................................................28

5.4.4 Safe shutdown and failure tolerance requirements.................................................................................28

5.4.5 Electronic, electrical, electromechanical ..................................................................................................28

6 Safety analysis requirements and techniques .........................................................................................29

6.1 General..........................................................................................................................................................29

6.2 Assessment and allocation of requirements ............................................................................................29

6.2.1 Safety requirements ....................................................................................................................................29

6.2.2 Additional safety requirements..................................................................................................................29

6.2.3 Define safety requirements - functions .....................................................................................................29

6.2.4 Define safety requirements - subsystems ................................................................................................29

6.2.5 Justification..................................................................................................................................................29

6.2.6 Functional and subsystem specification ..................................................................................................30

6.3 Safety analysis.............................................................................................................................................30

6.3.1 General..........................................................................................................................................................30

6.3.2 Mission analysis ..........................................................................................................................................30

6.3.3 Feasibility .....................................................................................................................................................30

6.3.4 Preliminary definition ..................................................................................................................................30

6.3.5 Detailed definition, production and qualification .....................................................................................30

6.3.6 Utilization......................................................................................................................................................30

6.3.7 Disposal ........................................................................................................................................................30

6.4 Specific safety analysis ..............................................................................................................................30

6.4.1 General..........................................................................................................................................................30

6.4.2 Hazard analysis............................................................................................................................................31

6.4.3 Safety risk assessment ...............................................................................................................................31

6.4.4 Safety analysis for hardware-software systems ......................................................................................32

6.5 Supporting assessment and analysis .......................................................................................................32

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SIST EN ISO 14620-1:2004
EN ISO 14620-1:2002 (E)

6.5.1 General..........................................................................................................................................................32

6.5.2 Warning time analysis .................................................................................................................................32

6.5.3 Caution and warning analysis ....................................................................................................................33

6.5.4 Common cause and common mode failure analysis...............................................................................33

6.5.5 Fault tree analysis........................................................................................................................................34

6.5.6 Human dependability analysis ...................................................................................................................34

6.5.7 Failure modes, effects and criticality analysis .........................................................................................34

6.5.8 Sneak analysis .............................................................................................................................................34

6.5.9 Zonal analysis ..............................................................................................................................................35

6.5.10 Energy trace analysis ..................................................................................................................................35

7 Safety verification ........................................................................................................................................35

7.1 General..........................................................................................................................................................35

7.2 Tracking of hazards .....................................................................................................................................36

7.2.1 Hazard reporting system.............................................................................................................................36

7.2.2 Status ............................................................................................................................................................36

7.2.3 Safety progress meeting.............................................................................................................................36

7.2.4 Review and disposition...............................................................................................................................36

7.2.5 Documentation.............................................................................................................................................36

7.2.6 Mandatory inspection points......................................................................................................................36

7.3 Safety verification methods........................................................................................................................36

7.3.1 Verification engineering and planning ......................................................................................................36

7.3.2 Methods and reports ...................................................................................................................................36

7.3.3 Verification requirements............................................................................................................................37

7.3.4 Analysis ........................................................................................................................................................37

7.3.5 Inspections ...................................................................................................................................................37

7.3.6 Tests..............................................................................................................................................................37

7.3.7 Verification and approval............................................................................................................................37

7.4 Qualification of safety critical functions ...................................................................................................37

7.4.1 Validation......................................................................................................................................................37

7.4.2 Qualification .................................................................................................................................................37

7.4.3 Failure tests..................................................................................................................................................38

7.4.4 Verification of design or operational characteristics...............................................................................38

7.4.5 Safety verification testing ...........................................................................................................................38

7.5 Hazard close-out ..........................................................................................................................................38

7.5.1 Safety assurance verification .....................................................................................................................38

7.5.2 Safety approval authority............................................................................................................................38

7.6 Residual risk reduction ...............................................................................................................................38

8 Operational safety........................................................................................................................................39

8.1 Basic requirements......................................................................................................................................39

8.2 Flight operations and mission control ......................................................................................................39

8.2.1 Launcher operations ...................................................................................................................................39

8.2.2 Contamination..............................................................................................................................................39

8.2.3 Flight rules....................................................................................................................................................39

8.2.4 Hazardous commanding control................................................................................................................39

8.2.5 Mission operation change control .............................................................................................................40

8.2.6 Safety surveillance and anomaly control ..................................................................................................40

8.3 Ground operations.......................................................................................................................................40

8.3.1 Applicability..................................................................................................................................................40

8.3.2 Initiation ........................................................................................................................................................40

8.3.3 Review and inspection ................................................................................................................................40

8.3.4 Hazardous operations .................................................................................................................................40

8.3.5 Launch and landing site requirements......................................................................................................41

8.3.6 GSE requirements........................................................................................................................................41

Bibliography ..............................................................................................................................................................42

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SIST EN ISO 14620-1:2004
EN ISO 14620-1:2002 (E)
Foreword

This document EN ISO 14620-1:2002 has been prepared by Technical Committee CEN/SS T02 "Aerospace", the

secretariat of which is held by CMC, in collaboration with Technical Committee ISO/TC 20 "Aircraft and space

vehicles".

This European Standard shall be given the status of a national standard, either by publication of an identical text or

by endorsement, at the latest by June 2003, and conflicting national standards shall be withdrawn at the latest by

June 2003.

The European Standard EN ISO 14620-1 was prepared by the European Cooperation for Space Standardization

(ECSS) Product Assurance Working Group for CEN in close collaboration with ISO Technical Committee

ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 14, Space systems and operations, WG 5, Program

management.

EN ISO 14620 consists of the following parts, under the general title Space systems — Safety requirements:

 Part 1: System safety
 Part 2: Launch site operations

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

coun
...

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