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EN 61025:2007

Current
Current

The latest, up-to-date edition.

Fault tree analysis (FTA)
Published date

04-03-2007

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 General
  5.1 Fault tree description and structure
  5.2 Objectives
  5.3 Applications
  5.4 Combinations with other reliability analysis techniques
6 Development and evaluation
  6.1 General considerations
  6.2 Required system information
  6.3 Fault tree graphical description and structure
7 Fault tree development and evaluation
  7.1 General
  7.2 Scope of analysis
  7.3 System familiarization
  7.4 Fault tree development
  7.5 Fault tree construction
  7.6 Failure rates in fault tree analysis
8 Identification and labelling in a fault tree
9 Report
Annex A (informative) Symbols
Annex B (informative) Detailed procedure for disjointing
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Bibliography

Describes fault tree analysis and provides guidance on its application to perform an analysis, identifies appropriate assumptions, events and failure modes, and provides identification rules and symbols.

Committee
CLC/SR 56
DevelopmentNote
Supersedes HD 617. (04/2007) Supersedes UNE 21925. (03/2010)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current
Supersedes

Standards Relationship
NF EN 61025 : 2007 Identical
IEC 61025:2006 Identical
NBN EN 61025 : 2007 Identical
NEN EN IEC 61025 : 2007 Identical
I.S. EN 61025:2007 Identical
PN EN 61025 : 2007 Identical
BS EN 61025:2007 Identical
CEI EN 61025 : 2007 Identical
DIN EN 61025:2007-08 Identical
UNE-EN 61025:2007 Identical

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CEI EN 61869-6 : 1ED 2017 INSTRUMENT TRANSFORMERS - PART 6: ADDITIONAL GENERAL REQUIREMENTS FOR LOW-POWER INSTRUMENT TRANSFORMERS
S.R. CLC/TS 62603-1:2014 INDUSTRIAL PROCESS CONTROL SYSTEMS - GUIDELINE FOR EVALUATING PROCESS CONTROL SYSTEMS - PART 1: SPECIFICATIONS
BS EN 50495:2010 Safety devices required for the safe functioning of equipment with respect to explosion risks
BS EN 62502:2011 Analysis techniques for dependability. Event tree analysis (ETA)
BS EN 61907:2010 Communication network dependability engineering
BS EN 60987:2015 Nuclear power plants. Instrumentation and control important to safety. Hardware design requirements for computer-based systems
BS EN 60300-3-15:2009 Dependability management Application guide. Engineering of system dependability
BS EN 61078:2016 Reliability block diagrams
CEI EN 50495 : 2011 SAFETY DEVICES REQUIRED FOR THE SAFE FUNCTIONING OF EQUIPMENT WITH RESPECT TO EXPLOSION RISKS
I.S. EN 61869-6:2016 INSTRUMENT TRANSFORMERS - PART 6: ADDITIONAL GENERAL REQUIREMENTS FOR LOW-POWER INSTRUMENT TRANSFORMERS
EN 62282-3-1 : 2007 FUEL CELL TECHNOLOGIES - PART 3-1: STATIONARY FUEL CELL POWER SYSTEMS - SAFETY
EN 60300-3-15 : 2009 DEPENDABILITY MANAGEMENT - PART 3-15: APPLICATION GUIDE - ENGINEERING OF SYSTEM DEPENDABILITY
EN 60300-3-4:2008 Dependability management - Part 3-4: Application guide - Guide to the specification of dependability requirements
EN 61869-6:2016 Instrument transformers - Part 6: Additional general requirements for low-power instrument transformers
EN 61907:2010 Communication network dependability engineering
EN 61882:2016 Hazard and operability studies (HAZOP studies) - Application guide
EN 50495:2010 Safety devices required for the safe functioning of equipment with respect to explosion risks
BS EN 62282-5-1:2012 Fuel cell technologies Portable fuel cell power systems. Safety
BS EN 61511-3:2017 Functional safety. Safety instrumented systems for the process industry sector Guidance for the determination of the required safety integrity levels
BS EN 61703:2016 Mathematical expressions for reliability, availability, maintainability and maintenance support terms
PD CLC/TS 62603-1:2014 Industrial process control systems. Guideline for evaluating process control systems Specifications
I.S. EN 62282-3-1:2007 FUEL CELL TECHNOLOGIES - PART 3-1: STATIONARY FUEL CELL POWER SYSTEMS - SAFETY
EN 50126-1:2017 Railway Applications - The Specification and Demonstration of Reliability, Availability, Maintainability and Safety (RAMS) - Part 1: Generic RAMS Process
BS EN 61496-1:2013 Safety of machinery. Electro-sensitive protective equipment General requirements and tests
EN 60987:2015 Nuclear power plants - Instrumentation and control important to safety - Hardware design requirements for computer-based systems
DIN EN 15233:2007-11 Methodology for functional safety assessment of protective systems for potentially explosive atmospheres
BS EN 15233:2007 Methodology for functional safety assessment of protective systems for potentially explosive atmospheres
VDI 4007:2012-06 Reliability goals - Determination, check, review, certificate
VDI 4002 Blatt 2:2011-09 Reliability Engineer - Requirements for qualification
I.S. EN 60987:2015 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY - HARDWARE DESIGN REQUIREMENTS FOR COMPUTER-BASED SYSTEMS
CEI EN 62502 : 2012 ANALYSIS TECHNIQUES FOR DEPENDABILITY - EVENT TREE ANALYSIS (ETA)
NF EN 50495 : 2010 SAFETY DEVICES REQUIRED FOR THE SAFE FUNCTIONING OF EQUIPMENT WITH RESPECT TO EXPLOSION RISKS
UNE-EN 62625-2:2017 Electronic railway equipment - On board driving data recording system - Part 2: Conformity testing
EN 61078 : 1991 RELIABILITY BLOCK DIAGRAMS (IEC 61078:2016)
I.S. EN 50495:2010 SAFETY DEVICES REQUIRED FOR THE SAFE FUNCTIONING OF EQUIPMENT WITH RESPECT TO EXPLOSION RISKS
I.S. EN 50159:2010 RAILWAY APPLICATIONS - COMMUNICATION, SIGNALLING AND PROCESSING SYSTEMS - SAFETY-RELATED COMMUNICATION IN TRANSMISSION SYSTEMS
UNE-EN 50159:2011 Railway applications - Communication, signalling and processing systems - Safety-related communication in transmission systems
DIN EN 15233 E : 2007 METHODOLOGY FOR FUNCTIONAL SAFETY ASSESSMENT OF PROTECTIVE SYSTEMS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES
CEI EN 50159 : 2012 RAILWAY APPLICATIONS - COMMUNICATION, SIGNALLING AND PROCESSING SYSTEMS - SAFETY-RELATED COMMUNICATION IN TRANSMISSION SYSTEMS
EN 61496-1:2013/AC:2015 SAFETY OF MACHINERY - ELECTRO-SENSITIVE PROTECTIVE EQUIPMENT - PART 1: GENERAL REQUIREMENTS AND TESTS (IEC 61496-1:2012)
16/30339594 DC : DRAFT DEC 2016 BS EN 50129 - RAILWAY APPLICATIONS - COMMUNICATION, SIGNALLING AND PROCESSING SYSTEMS - SAFETY RELATED ELECTRONIC SYSTEMS FOR SIGNALLING
I.S. EN 50126-1:2017 RAILWAY APPLICATIONS - THE SPECIFICATION AND DEMONSTRATION OF RELIABILITY, AVAILABILITY, MAINTAINABILITY AND SAFETY (RAMS) - PART 1: GENERIC RAMS PROCESS
UNE-EN 62282-3-1:2011 Fuel cell technologies - Part 3-1: Stationary fuel cell power systems - Safety
BS EN 61508-7:2010 Functional safety of electrical/electronic/ programmable electronic safety related systems Overview of techniques and measures
PREN 50126-1 : DRAFT 2015 RAILWAY APPLICATIONS - THE SPECIFICATION AND DEMONSTRATION OF RELIABILITY, AVAILABILITY, MAINTAINABILITY AND SAFETY (RAMS) - PART 1: GENERIC RAMS PROCESS
BS EN 62551:2012 Analysis techniques for dependability. Petri net techniques
UNE-EN 61882:2017 Hazard and operability studies (HAZOP studies) - Application guide
BS EN 61882:2016 Hazard and operability studies (HAZOP studies). Application guide
CEI EN 60300-3-4 : 2010 DEPENDABILITY MANAGEMENT - PART 3-4: APPLICATION GUIDE - GUIDE TO THE SPECIFICATION OF DEPENDABILITY REQUIREMENTS
EN 62619:2017 Secondary cells and batteries containing alkaline or other non-acid electrolytes - Safety requirements for secondary lithium cells and batteries, for use in industrial applications
PREN 17141 : DRAFT 2017 CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - BIOCONTAMINATION CONTROL
I.S. EN 62502:2010 ANALYSIS TECHNIQUES FOR DEPENDABILITY - EVENT TREE ANALYSIS (ETA)
EN 50159:2010 Railway applications - Communication, signalling and processing systems - Safety-related communication in transmission systems
EN 62502 : 2010 ANALYSIS TECHNIQUES FOR DEPENDABILITY - EVENT TREE ANALYSIS (ETA)
EN 15233:2007 Methodology for functional safety assessment of protective systems for potentially explosive atmospheres
BS EN 61869-6:2016 Instrument transformers Additional general requirements for low-power instrument transformers
UNE-EN 60300-3-4:2011 Dependability management -- Part 3-4: Application guide - Guide to the specification of dependability requirements
BS EN 50159:2010 Railway applications. Communication, signalling and processing systems. Safety-related communication in transmission systems
BS EN 62619:2017 Secondary cells and batteries containing alkaline or other non-acid electrolytes. Safety requirements for secondary lithium cells and batteries, for use in industrial applications
17/30329441 DC : 0 BS EN 17141 - CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS - BIOCONTAMINATION CONTROL
15/30330403 DC : 0 BS EN 50126-1 - RAILWAY APPLICATIONS - THE SPECIFICATION AND DEMONSTRATION OF RELIABILITY, AVAILABILITY, MAINTAINABILITY AND SAFETY (RAMS) - PART 1: GENERIC RAMS PROCESS
BS EN 60300-3-4:2008 Dependability management Application guide. Guide to the specification of dependability requirements
I.S. EN 60300-3-4:2008 DEPENDABILITY MANAGEMENT - PART 3-4: APPLICATION GUIDE - GUIDE TO THE SPECIFICATION OF DEPENDABILITY REQUIREMENTS
EN 62551 : 2012 ANALYSIS TECHNIQUES FOR DEPENDABILITY - PETRI NET TECHNIQUES (IEC 62551:2012)
EN 61511-3:2017 Functional safety - Safety instrumented systems for the process industry sector - Part 3: Guidance for the determination of the required safety integrity levels
EN 62282-5-1:2012 FUEL CELL TECHNOLOGIES - PART 5-1: PORTABLE FUEL CELL POWER SYSTEMS - SAFETY (IEC 62282-5-1:2012)
EN 61508-7:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 7: Overview of techniques and measures
EN 61427-2:2015 Secondary cells and batteries for renewable energy storage - General requirements and methods of test - Part 2: On-grid applications
EN 61703:2016 Mathematical expressions for reliability, availability, maintainability and maintenance support terms

EN 60812:2006 Analysis techniques for system reliability - Procedure for failure mode and effects analysis (FMEA)
IEC 60812:2006 Analysis techniques for system reliability - Procedure for failure mode and effects analysis (FMEA)
IEC 61078:2016 Reliability block diagrams
IEC 61165:2006 Application of Markov techniques
EN 60300-3-1:2004 Dependability management - Part 3-1: Application guide - Analysis techniques for dependability - Guide on methodology
EN 61078 : 1991 RELIABILITY BLOCK DIAGRAMS (IEC 61078:2016)
EN 61165:2006 Application of Markov techniques
IEC 60300-3-1:2003 Dependability management - Part 3-1: Application guide - Analysis techniques for dependability - Guide on methodology

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