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  • CEI EN 50495 : 2011

    Current The latest, up-to-date edition.

    SAFETY DEVICES REQUIRED FOR THE SAFE FUNCTIONING OF EQUIPMENT WITH RESPECT TO EXPLOSION RISKS

    Available format(s):  Hardcopy, PDF

    Language(s):  English - Italian

    Published date:  01-01-2011

    Publisher:  Comitato Elettrotecnico Italiano

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    Table of Contents - (Show below) - (Hide below)

    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Ignition prevention by safety devices
    5 Functional requirements for a safety device
    6 Tests
    7 Marking
    8 Safety instructions
    Annex A (informative) - Example of an assessment procedure
            for a simple safety device
    Annex B (informative) - Example of an assessment procedure
            for the hardware safety integrity of a safety device
    Annex C (informative) - Example of determining the hardware
            safety integrity level
    Annex D (informative) - Examples for safety devices
    Annex E (informative) - Basic concept for safety devices
    Annex ZZ (informative) - Coverage of Essential Requirements
             of EC Directives
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines the requirements of electrical safety devices, which are used to avoid potential ignition sources of equipment in explosive atmospheres.

    General Product Information - (Show below) - (Hide below)

    Committee CT 31
    Development Note Classificazione CEI 31-94. (07/2011)
    Document Type Standard
    Publisher Comitato Elettrotecnico Italiano
    Status Current

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 61025:2006 Fault tree analysis (FTA)
    EN 60812:2006 Analysis techniques for system reliability - Procedure for failure mode and effects analysis (FMEA)
    EN 61508-3:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 3: Software requirements
    EN 61508-1:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 1: General requirements
    EN 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
    IEC 60079-30-2:2007 Explosive atmospheres - Part 30-2: Electrical resistance trace heating - Application guide for design, installation and maintenance
    EN 61508-7:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 7: Overview of techniques and measures
    IEC 61511-1:2016+AMD1:2017 CSV Functional safety - Safety instrumented systems for the process industry sector - Part 1: Framework, definitions, system, hardware and application programming requirements
    IEC 60812:2006 Analysis techniques for system reliability - Procedure for failure mode and effects analysis (FMEA)
    EN 60079-0:2012/A11:2013 EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS (IEC 60079-0:2011, MODIFIED)
    IEC 61165:2006 Application of Markov techniques
    IEC 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
    IEC 61508-4:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 4: Definitions and abbreviations (see Functional Safety and IEC 61508)
    IEC 61241-0:2004 Electrical apparatus for use in the presence of combustible dust - Part 0: General requirements
    EN 13237:2012 Potentially explosive atmospheres - Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres
    IEC 61508-3:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 3: Software requirements (see Functional Safety and IEC 61508)
    EN 13463-6:2005 Non-electrical equipment for use in potentially explosive atmospheres - Part 6: Protection by control of ignition source 'b'
    EN 50402:2017 Electrical apparatus for the detection and measurement of combustible or toxic gases or vapours or of oxygen - Requirements on the functional safety of gas detection systems
    EN 61165:2006 Application of Markov techniques
    EN 60079-30-1:2017 Explosive atmospheres - Part 30-1: Electrical resistance trace heating - General and testing requirements
    EN 61508-2:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems
    EN 61496-1:2013/AC:2015 SAFETY OF MACHINERY - ELECTRO-SENSITIVE PROTECTIVE EQUIPMENT - PART 1: GENERAL REQUIREMENTS AND TESTS (IEC 61496-1:2012)
    EN 61025:2007 Fault tree analysis (FTA)
    EN 62061:2005/A2:2015 SAFETY OF MACHINERY - FUNCTIONAL SAFETY OF SAFETY-RELATED ELECTRICAL, ELECTRONIC AND PROGRAMMABLE ELECTRONIC CONTROL SYSTEMS (IEC 62061:2005/A2:2015)
    EN 50271:2010 Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen - Requirements and tests for apparatus using software and/or digital technologies
    ISO 13849-2:2012 Safety of machinery — Safety-related parts of control systems — Part 2: Validation
    IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
    IEC 61709 : 3.0 ELECTRIC COMPONENTS - RELIABILITY - REFERENCE CONDITIONS FOR FAILURE RATES AND STRESS MODELS FOR CONVERSION
    EN 61241-0:2006 Electrical apparatus for use in the presence of combustible dust - Part 0: General requirements
    IEC 61496-1:2012 Safety of machinery - Electro-sensitive protective equipment - Part 1: General requirements and tests
    EN ISO 13849-2:2012 Safety of machinery - Safety-related parts of control systems - Part 2: Validation (ISO 13849-2:2012)
    EN ISO 13849-1:2015 Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2015)
    IEC 60079-30-1:2007 Explosive atmospheres - Part 30-1: Electrical resistance trace heating - General and testing requirements
    EN 61709:2017 Electric components - Reliability - Reference conditions for failure rates and stress models for conversion
    EN 61010-1:2010 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements
    IEC 61508-1:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 1: General requirements (see Functional Safety and IEC 61508)
    IEC 62061:2005+AMD1:2012+AMD2:2015 CSV Safety of machinery - Functional safety of safety-related electrical, electronic and programmable electronic control systems
    EN 60079-30-2:2017 Explosive atmospheres - Part 30-2: Electrical resistance trace heating - Application guide for design, installation and maintenance
    IEC 61508-7:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 7: Overview of techniques and measures (see Functional Safety and IEC 61508)
    IEEE 352-1987 IEEE Guide for General Principles of Reliability Analysis of Nuclear Power Generating Station Safety Systems
    IEC 61010-1:2010+AMD1:2016 CSV Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements
    ISO 13849-1:2015 Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design
    IEC 61508-2:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems (see Functional Safety and IEC 61508)
    1994/9/EC : 1994 DIRECTIVE 94/9/EC OF THE EUROPEAN PARLIAMENT AND THE COUNCIL OF 23 MARCH 1994 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES CONCERNING EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
    EN 61508-4:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 4: Definitions and abbreviations
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