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  • EN 50021 : 99 COR 2000

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 POTENTIALLY EXPLOSIVE ATMOSPHERES - TYPE OF PROTECTION "N"

    Available format(s): 

    Superseded date:  01-09-2003

    Language(s): 

    Published date:  12-01-2013

    Publisher:  European Committee for Standards - Electrical

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

    Foreword
    Section One: General
    1 Scope
    2 Normative references
    3 Definitions
    4 General requirements
    Section Two: Requirements for all electrical apparatus
    5 General
    6 Construction
    7 Connection facilities and wiring
    8 Clearances, creepage distances and separations
    9 Electric strength
    Section Three: Supplementary requirements for non-sparking
    apparatus
    10 Rotating machines
    11 Fuses and fuse assemblies
    12 Luminaires
    13 Instruments and low-power apparatus
    14 Current transformers
    15 Plugs and sockets
    16 Cells and batteries
    Section Four: Supplementary requirements for apparatus
    producing arcs, sparks or hot surfaces
    17 General
    18 Enclosed-break devices and non-incendive components
    19 Hermetically sealed device
    20 Sealed device or encapsulated device
    21 Energy-limited apparatus and circuits
    22 Restricted-breathing enclosures
    23 Simplified pressurization
    Section Five: Verification and testing
    24 General
    25 Documents
    26 Type tests
    27 Routine verifications and tests
    Section Six: Marking and documentation
    28 Marking
    29 Documentation
    30 Manufacturer's responsibility
    Annex A (normative) Assessment of energy-limited
    apparatus and circuits by reference curves and tables

    Abstract - (Show below) - (Hide below)

    Defines requirements for construction, testing and marking of Group II electrical apparatus with type of protection "n", meant to be used solely in areas where explosive atmospheres of gas, vapour and mist are not likely to occur, or if they do, only infrequently or for a short time.

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

    Committee SC 31-5
    Development Note BS 4533:Section 102.51:1986 is proposed to be withdrawn on 30 June 2003, since BS 4533:Section 102.51:1986 conflicts with this EN standard. (03/2001) To be read in conjunction with EN 50014 (04/2001)
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By

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

    IEEE 303-2004 IEEE Recommended Practice for Auxiliary Devices for Rotating Electrical Machines in Class I, Division 2 and Zone 2 Locations
    03/107320 DC : DRAFT APR 2003 EN 14678-1 - LPG EQUIPMENT AND ACCESSORIES - CONSTRUCTION AND PERFORMANCE OF LPG EQUIPMENT FOR AUTOMOTIVE FILLING STATIONS - PART 1: DISPENSERS
    10/30227671 DC : 0 BS EN 14678-1 - LPG EQUIPMENT AND ACCESSORIES - CONSTRUCTION AND PERFORMANCE OF LPG EQUIPMENT FOR AUTOMOTIVE FILLING STATIONS - PART 1: DISPENSERS
    EN 50381 : 2004 COR 2005 TRANSPORTABLE VENTILATED ROOMS WITH OR WITHOUT AN INTERNAL SOURCE OF RELEASE
    UNI EN ISO 8230-3 : 2009 SAFETY REQUIREMENTS FOR DRY-CLEANING MACHINES - PART 3: MACHINES USING COMBUSTIBLE SOLVENTS
    CSA PLUS 2203 : 2001 HAZARDOUS LOCATIONS - GUIDE FOR THE DESIGN, TESTING, CONSTRUCTION, AND INSTALLATION OF EQUIPMENT IN EXPLOSIVE ATMOSPHERES
    BS EN 50381:2004 Transportable ventilated rooms with or without an internal source of release
    DIN EN 13636:2004-10 Cathodic protection of buried metallic tanks and related piping; German version EN 13636:2004
    DIN EN ISO 8230-3:2009-05 SAFETY REQUIREMENTS FOR DRY-CLEANING MACHINES - PART 3: MACHINES USING COMBUSTIBLE SOLVENTS
    CEI EN 50381 : 2006 TRANSPORTABLE VENTILATED ROOMS WITH OR WITHOUT AN INTERNAL SOURCE OF RELEASE
    EEMUA 186 : 2016 A PRACTITIONER'S HANDBOOK FOR POTENTIALLY EXPLOSIVE ATMOSPHERES
    PREN 14678-1 : DRAFT 2010 LPG EQUIPMENT AND ACCESSORIES - CONSTRUCTION AND PERFORMANCE OF LPG EQUIPMENT FOR AUTOMOTIVE FILLING STATIONS - PART 1: DISPENSERS
    I.S. EN 50381:2004 TRANSPORTABLE VENTILATED ROOMS WITH OR WITHOUT AN INTERNAL SOURCE OF RELEASE
    DD ENV 14236:2002 Ultrasonic domestic gas meters
    ISO 8230-3:2008 Safety requirements for dry-cleaning machines Part 3: Machines using combustible solvents
    BS EN 13636:2004 Cathodic protection of buried metallic tanks and related piping
    EN ISO 8230-3:2008 Safety requirements for dry-cleaning machines - Part 3: Machines using combustible solvents (ISO 8230-3:2008)
    EN 13636:2004 Cathodic protection of buried metallic tanks and related piping
    BS EN ISO 8230-3:2008 Safety requirements for dry-cleaning machines Machines using combustible solvents
    I.S. EN ISO 8230-3:2008 SAFETY REQUIREMENTS FOR DRY-CLEANING MACHINES - PART 3: MACHINES USING COMBUSTIBLE SOLVENTS

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

    IEC 60112:2003+AMD1:2009 CSV Method for the determination of the proof and the comparative tracking indices of solid insulating materials
    EN 60068-2-75:2014 Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests
    EN 60924:1991/A1:1994 SPECIFICATION FOR GENERAL AND SAFETY REQUIREMENTS FOR D.C. SUPPLIED ELECTRONIC BALLASTS FOR TUBULAR FLUORESCENT LAMPS
    EN 61048:2006/A1:2016 AUXILIARIES FOR LAMPS - CAPACITORS FOR USE IN TUBULAR FLUORESCENT AND OTHER DISCHARGE LAMP CIRCUITS - GENERAL AND SAFETY REQUIREMENTS (IEC 61048:2006/A1:2015)
    HD 214 : 200S2 RECOMMENDED METHOD FOR DETERMINING THE COMPARATIVE TRACKING INDEX OF SOLID INSULATING MATERIALS UNDER MOIST CONDITIONS
    EN 60238 : 2004 AMD 2 2011 EDISON SCREW LAMPHOLDERS (IEC 60238:2004/A2:2011)
    EN 60034-1:2010/corrigendum Oct. 2010 ROTATING ELECTRICAL MACHINES - PART 1: RATING AND PERFORMANCE
    EN 60920:1991/A11:2000 BALLAST FOR TUBULAR FLUORESCENT LAMPS - GENERAL AND SAFETY REQUIREMENTS
    EN 50020:2002 Electrical apparatus for potentially explosive atmospheres - Intrinsic safety 'i'
    ISO 4892:1981 Plastics Methods of exposure to laboratory light sources
    HD 625.1 : 200S1 INSULATION COORDINATION FOR EQUIPMENT WITHIN LOW-VOLTAGE SYSTEMS - PRINCIPLES, REQUIREMENTS AND TESTS
    EN 60400:2017 Lampholders for tubular fluorescent lamps and starterholders
    IEC 60216-2:2005 Electrical insulating materials - Thermal endurance properties - Part 2: Determination of thermal endurance properties of electrical insulating materials - Choice of test criteria
    EN 60947-1:2007/A2:2014 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: GENERAL RULES (IEC 60947-1:2007/A2:2014)
    HD 611.1 : 200S1 GUIDE FOR THE DETERMINATION OF THERMAL ENDURANCE PROPERTIES OF ELECTRICAL INSULATING MATERIALS - GENERAL GUIDELINES FOR AGEING PROCEDURES AND EVALUATION OF TEST RESULTS
    EN 60927:2007/A1:2013 AUXILIARIES FOR LAMPS - STARTING DEVICES (OTHER THAN GLOW STARTERS) - PERFORMANCE REQUIREMENTS (IEC 60927:2007/A1:2013 (34C/951/CDV))
    EN 60060-2:2011 High-voltage test techniques - Part 2: Measuring systems
    EN 60068-2-27:2009 Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock
    EN 60928:1995/A1:1999 AUXILIARIES FOR LAMPS - A.C. SUPPLIED ELECTRONIC BALLASTS FOR TUBULAR FLUORESCENT LAMPS - GENERAL AND SAFETY REQUIREMENTS
    EN 61049:1993 Capacitors for use in tubular fluorescent and other discharge lamp circuits - Performance requirements
    EN 60269-3:1995/A1:2003 LOW-VOLTAGE FUSES - PART 3: SUPPLEMENTARY REQUIREMENTS FOR FUSES FOR USE BY UNSKILLED PERSONS (FUSES MAINLY FOR HOUSEHOLD AND SIMILAR APPLICATIONS)
    EN 60926:1996/A1:1999 AUXILIARIES FOR LAMPS - STARTING DEVICES (OTHER THAN GLOW STARTERS) - GENERAL AND SAFETY REQUIREMENTS
    EN 60155:1995/A2:2007 GLOW-STARTERS FOR FLUORESCENT LAMPS
    EN 61184:2017 Bayonet lampholders
    ISO 179:1993 Plastics Determination of Charpy impact strength
    EN 60662:2012 High-pressure sodium vapour lamps - Performance specifications
    EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
    EN 60922:1997 Auxiliaries for lamps - Ballasts for discharge lamps (excluding tubular fluorescent lamps) - General and safety requirements
    HD 611.2 : 200S1 GUIDE FOR THE DETERMINATION OF THERMAL ENDURANCE PROPERTIES OF ELECTRICAL INSULATING MATERIALS - CHOICE OF TEST CRITERIA
    EN 50014:1997/A2:1999 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - GENERAL REQUIREMENTS
    IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
    IEC 60216-1:2013 Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results
    EN 60034-5:2001/A1:2007 ROTATING ELECTRICAL MACHINES - PART 5: DEGREES OF PROTECTION PROVIDED BY THE INTEGRAL DESIGN OF ROTATING ELECTRICAL MACHINES (IP CODE) - CLASSIFICATION
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