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  • EN 61241-14:2004

    View superseded by
    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Electrical apparatus for use in the presence of combustible dust - Part 14: Selection and installation

    Available format(s): 

    Superseded date:  01-10-2011

    Language(s): 

    Published date:  24-09-2004

    Publisher:  European Committee for Standards - Electrical

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

    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 General requirements for all types of protection
       4.1 Access for inspection
       4.2 Associated equipment located in non-hazardous areas
       4.3 Segregation
       4.4 Electrical rating
       4.5 Protection from mechanical damage and environmental injury
       4.6 Documentation
       4.7 Qualifications of personnel
       4.8 Additional considerations
       4.9 Prevention of explosion
    5 Area classification
    6 Selection of electrical apparatus
       6.1 Permitted apparatus
       6.2 Selection according to dust characteristics and zones
       6.3 Selection according to temperature
       6.4 Selection of apparatus
    7 Protection from dangerous (incendive) sparking
       7.1 Danger from live parts
       7.2 Danger from exposed and extraneous conductive parts
       7.3 Potential equalization
       7.4 Static electricity
       7.5 Electromagnetic radiation
       7.6 Lightning protection
       7.7 Cathodically protected metallic parts
    8 Electrical protection
       8.1 General
       8.2 Location of protection and control equipment
       8.3 Resetting of short-circuit and earth-fault protection
            devices
       8.4 Protection of rotating electrical machinery
       8.5 Loss of supply phase
       8.6 Transformer protection
    9 Emergency switch-off and electrical isolation
       9.1 Emergency switch-off
       9.2 Electrical isolation
    10 Wiring systems
       10.1 General
       10.2 Entries for cable and conduit
       10.3 Accessories
       10.4 Course of wiring
       10.5 Barriers
       10.6 Flexible connection
       10.7 Cable entries
       10.8 Unauthorized methods
       10.9 Telecommunications circuits
       10.10 Unused openings
    11 Plugs and socket outlets
       11.1 General
       11.2 Mounting
       11.3 Location
    12 Additional requirements for type of protection "Ex tD"
       12.1 Practices A and B
       12.2 Practice A
       12.3 Practice B
       12.4 Motors supplied at varying frequency and voltages
    13 Additional requirements for type of protection "pD"
       13.1 Sources of protective gas
       13.2 Automatic switch-off
       13.3 Alarm
       13.4 Common source of protective gas
       13.5 Switching on electrical supply
       13.6 Motors supplied at varying frequency and voltages
    14 Additional requirements for type of protection "iD"
    15 Additional requirements for type of protection "mD"
    16 Inspection of installation
       16.1 General
       16.2 Testing
    Annex A (informative) Examples of dust layers of excessive
            thickness
    Annex B (normative) Frictional sparking risks with light
            metals and their alloys
    Annex ZA (normative) Normative references to international
             publications with their corresponding European
             publications
    Bibliography

    Abstract - (Show below) - (Hide below)

    Specifies general requirements, additional to those required for basic electrical safety, for the selection of electrical apparatus and instruments and associated equipment, and for the installation of electrical apparatus to ensure safe use in areas where combustible dust may be present in quantities which could lead to a fire or explosion hazard. The application of electrical apparatus in atmospheres which may contain explosive gas as well as combustible dust, whether simultaneously or separately, requires additional protective measures.

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

    Committee CLC/TC 31
    Development Note Together with EN 61241-17, it supersedes EN 50281-1-2 (05/2005)
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    UNI EN 13237 : 2012 POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
    BS EN 61241-17:2005 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 17: INSPECTION AND MAINTENANCE OF ELECTRICAL INSTALLATIONS IN HAZARDOUS AREAS (OTHER THAN MINES)
    BS EN 61241-0:2006 (published 2007-01) Electrical apparatus for use in the presence of combustible dust General requirements
    11/30239006 DC : 0 BS EN 13237 - POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
    BS EN 14677 : 2008 SAFETY OF MACHINERY - SECONDARY STEELMAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL
    UNE-EN 1127-1:2012 Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
    EN 1010-1:2004+A1:2010 Safety of machinery - Safety requirements for the design and construction of printing and paper converting machines - Part 1: Common requirements
    EN 13237:2012 Potentially explosive atmospheres - Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres
    EN 61241-17:2005 Electrical apparatus for use in the presence of combustible dust - Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines)
    EN 50174-2 : 2009 AMD 2 2014 INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
    I.S. EN 1127-1:2011 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    NF EN 1127-1 : 2011 EXPLOSIVES ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    DIN EN 1010-1:2011-06 Safety of machinery - Safety requirements for the design and construction of printing and paper converting machines - Part 1: Common requirements (includes Amendment A1:2010)
    I.S. EN 13237:2012 POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
    DIN EN 1127-1:2011-10 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    I.S. EN 1010-1:2005 SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF PRINTING AND PAPER CONVERTING MACHINES - PART 1: COMMON REQUIREMENTS
    07/30152812 DC : DRAFT AUG 2007 BS EN 50174-2 - INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
    I.S. EN 61241-17:2005 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 17: INSPECTION AND MAINTENANCE OF ELECTRICAL INSTALLATIONS IN HAZARDOUS AREAS (OTHER THAN MINES)
    BS EN 1127-1:2019 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology
    BS EN 1010-1 : 2004 SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF PRINTING AND PAPER CONVERTING MACHINES - PART 1: COMMON REQUIREMENTS
    UNI EN 14677 : 2008 SAFETY OF MACHINERY - SECONDARY STEELMAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL
    UNI EN 1010-1 : 2011 SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF PRINTING AND PAPER CONVERTING MACHINES - PART 1: COMMON REQUIREMENTS
    UNI EN 1127-1 : 2011 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
    I.S. EN 50174-2:2009 INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
    I.S. EN 61241-0:2006 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 0: GENERAL REQUIREMENTS
    BS EN 13237:2012 Potentially explosive atmospheres. Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres
    EN 61241-0:2006 Electrical apparatus for use in the presence of combustible dust - Part 0: General requirements
    EN 14677:2008 Safety of machinery - Secondary steelmaking - Machinery and equipment for treatment of liquid steel
    I.S. EN 14677:2008 SAFETY OF MACHINERY - SECONDARY STEELMAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL
    BS EN 1127-1:2011 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology
    DIN EN 13237:2013-01 POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
    BS EN 50174-2 : 2009 INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
    EN 1127-1:2011 Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology

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

    IEC 61024-1-1:1993 Protection of structures against lightning - Part 1: General principles - Section 1: Guide A: Selection of protection levels for lightning protection systems
    IEC 61024-1:1990 Protection of structures against lightning - Part 1: General principles
    IEC 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
    EN 61558-1:2005/A1:2009 SAFETY OF POWER TRANSFORMERS, POWER SUPPLIES, REACTORS AND SIMILAR PRODUCTS - PART 1: GENERAL REQUIREMENTS AND TESTS
    ISO 4225:1994 Air quality General aspects Vocabulary
    IEC 61241-0:2004 Electrical apparatus for use in the presence of combustible dust - Part 0: General requirements
    IEC 61241-11:2005 Electrical apparatus for use in the presence of combustible dust - Part 11: Protection by intrinsic safety 'iD'
    IEC 60050-426:2008 International Electrotechnical Vocabulary (IEV) - Part 426: Equipment for explosive atmospheres
    IEC 61241-17:2005 Electrical apparatus for use in the presence of combustible dust - Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines)
    IEC 61558-1:2017 Safety of transformers, reactors, power supply units and combinations thereof - Part 1: General requirements and tests
    EN 61241-1:2004/corrigendum Dec. 2006 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 1: PROTECTION BY ENCLOSURES "TD"
    IEC 61241-1:2004 Electrical apparatus for use in the presence of combustible dust - Part 1: Protection by enclosures "tD"
    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    IEC 61241-18:2004 Electrical apparatus for use in the presence of combustible dust - Part 18: Protection by encapsulation 'mD'
    IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
    EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
    EN 61241-10:2004 Electrical apparatus for use in the presence of combustible dust - Part 10: Classification of areas where combustible dusts are or may be present
    IEC 61241-10:2004 Electrical apparatus for use in the presence of combustible dust - Part 10: Classification of areas where combustible dusts are or may be present
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