• BS EN 61241-0:2006 (published 2007-01)

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    Electrical apparatus for use in the presence of combustible dust General requirements

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  30-11-2009

    Language(s):  English

    Published date:  31-01-2007

    Publisher:  British Standards Institution

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

    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Construction
       4.1 General
       4.2 Void
       4.3 Opening enclosures
       4.4 Environmental conditions
       4.Z1 Mechanical strength of apparatus
    5 Temperatures
       5.1 Maximum surface temperature
       5.2 Maximum surface temperature with respect to
             dust layers above 50 mm
       5.3 Ambient temperature
    6 Enclosure materials
       6.1 Non-metallic enclosures and non-metallic parts of
             enclosures
       6.2 Enclosures containing light metals
    7 Fasteners
       7.1 Access to live parts
       7.2 Compatible material
    8 Interlocking devices
    9 Bushings
       9.1 Prevention of turning
       9.2 Torque tests
    10 Materials used for cementing
       10.1 Documentation
       10.2 Thermal stability
       10.3 Verification
    11 Ex components
       11.1 General
       11.2 Mounting
       11.3 Internal mounting
       11.4 External mounting
    12 Connection facilities and terminal compartments
       12.1 Attached cables
       12.2 Terminal access
       12.3 Creepage and clearance
    13 Connection facilities for earthing or bonding conductors
       13.1 Internal connection
       13.2 External connection
       13.3 Facility not required
       13.4 Effective connection
       13.5 Effective contact
       13.6 Environmental
       13.7 Use of light metal
    14 Cable and conduit entries
       14.1 Intended use
       14.2 Construction
       14.3 Integral part of the apparatus
       14.4 Prevention of twisting
       14.5 Method of attaching
       14.6 Blanking elements
       14.7 Branching point temperatures
    15 Radiating equipment
       15.1 Lasers and other continuous wave source
       15.2 Ultrasonic sources
    16 Supplementary requirements for specific
       electrical apparatus - Rotating electrical machines
       16.1 Ventilation openings for external fans
       16.2 Construction and mounting of the ventilating systems
       16.3 Clearances for the ventilating system
       16.4 Materials for external fans and fanhoods
    17 Switchgear
       17.1 Flammable dielectric
       17.2 Interlocking
       17.3 Indication of open position
       17.4 Openings
    18 Fuses
    19 Plugs and sockets
       19.1 Plugs and sockets construction
       19.2 Bolted plugs and sockets
       19.3 For Zone 21 and Zone 22
       19.4 Plugs remaining energized
    20 Luminaires
       20.1 Light transmitting covers
       20.2 Guards
       20.3 Mounting
       20.4 Covers
       20.5 Parts remaining energized
       20.6 Types of lamps
    21 Caplights, caplamps and handlamps
       21.1 Leakage
       21.2 Separate enclosures
    22 Apparatus incorporating cells and batteries
       22.1 General
       22.2 Connection of cells
       22.3 Characteristics
       22.4 Compatibility
       22.5 Limits
       22.6 Mixture of cells
       22.7 Interchangeability
       22.8 Re-charging
       22.9 Different cells
       22.10 Leakage
       22.11 Method of connection
       22.12 Orientation
       22.13 Identification of replacement
    23 Verification and tests
       23.1 General
       23.2 Verification of documents
       23.3 Compliance of prototype or sample with documents
       23.4 Type tests
    24 Routine verifications and tests
    25 Manufacturer's responsibility
    26 Verifications and tests on modified or repaired electrical
       apparatus
    27 Clamping tests of cable entries for non-armoured and braided
       cables
       27.1 Cable entries with clamping by the sealing ring
       27.2 Cable entries with clamping by filling compound
       27.3 Cable entries with clamping by means of a clamping device
       27.4 Tensile test
       27.5 Mechanical strength
    28 Clamping tests of cable entries for armoured cables
       28.1 Clamping tests where the armourings are clamped
             by a device within the gland
       28.2 Clamping tests where the armourings are not clamped by a
             device within the gland
    29 Marking
       29.1 General
       29.2 Marking of all electrical apparatus
       29.3 Multiple protection techniques
       29.4 Order of marking
       29.5 Reduced marking
    30 Examples of marking
       30.1 Apparatus type of protection "mD" for use in Zone 20
       30.2 Apparatus type of protection "iaD" for use in Zone 20
       30.3 Apparatus type of protection "pD" for use in Zone 21
       30.4 Apparatus type of protection "tD", Practice A; temperature
             tested under 500 mm dust layer, for use in Zone 21
       30.5 Apparatus type of protection "tD", Practice B for use in
             Zone 22
       30.6 Apparatus type of protection "tD", Practice A for use in
             Zone 22
    Annex ZA (informative) Classification of electrical apparatus into
             categories
    Annex ZB (normative) Normative references to international
             publications with their corresponding European publications
    Annex ZZ (informative) Coverage of Essential Requirements of EC
             Directives
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines general requirements for the design, construction, testing and marking of electrical apparatus protected by any recognized safeguard technique for use in areas where combustible dust may be present in quantities that could lead to a fire or explosion hazard.

    Scope - (Show below) - (Hide below)

    Specifies general requirements for the design, construction, testing and marking of electrical apparatus protected by any recognized safeguard technique for use in areas where combustible dust may be present in quantities that 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. The contents of the corrigendum of November 2005 have been included in this copy.

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

    Committee EXL/31
    Development Note Together with BS EN 61241-1, it supersedes BS EN 50281-1.1 which remains current and will be withdrawn on 01/10/2008. Together with BS EN 61241-1, BS EN 61241-14 and BS EN 61241-17, it supersedes BS 6467-1(1985) and BS 6467-2(1988). (01/2007) Supersedes 02/204778 DC (02/2007)
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn
    Superseded By
    Supersedes

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

    IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
    EN ISO 4027 : 2003 HEXAGON SOCKET SET SCREWS WITH CONE POINT
    EN 60192:2001 LOW PRESSURE SODIUM VAPOUR LAMPS - PERFORMANCE SPECIFICATIONS
    EN 20286-2 : 1993 ISO SYSTEM OF LIMITS AND FITS - TABLES OF STANDARD TOLERANCE GRADES AND LIMIT DEVIATIONS FOR HOLES AND SHAFTS
    EN 60216-1:2013 ELECTRICAL INSULATING MATERIALS - THERMAL ENDURANCE PROPERTIES - PART 1: AGEING PROCEDURES AND EVALUATION OF TEST RESULTS (IEC 60216-1:2013)
    EN ISO 4029 : 2003 HEXAGON SOCKET SET SCREWS WITH CUP POINT
    IEC 60662:2011 High-pressure sodium vapour lamps - Performance specifications
    IEC 60192:2001 Low-pressure sodium vapour lamps - Performance specifications
    EN 60623:2017 SECONDARY CELLS AND BATTERIES CONTAINING ALKALINE OR OTHER NON-ACID ELECTROLYTES - VENTED NICKEL-CADMIUM PRISMATIC RECHARGEABLE SINGLE CELLS
    EN 60079-0:2012/A11:2013 EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS (IEC 60079-0:2011, MODIFIED)
    ISO 4225:1994 Air quality General aspects Vocabulary
    IEC 60050-486:1991 International Electrotechnical Vocabulary (IEV) - Part 486: Secondary cells and batteries
    EN ISO 178:2010/A1:2013 PLASTICS - DETERMINATION OF FLEXURAL PROPERTIES (ISO 178:2010/AMD 1:2013)
    EN ISO 4026 : 2003 HEXAGON SOCKET SET SCREWS WITH FLAT POINT
    ISO 4017:2014 Fasteners Hexagon head screws Product grades A and B
    EN 61241-14 : 2004 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 14: SELECTION AND INSTALLATION
    EN ISO 4014:2011 Hexagon head bolts - Product grades A and B (ISO 4014:2011)
    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 60285:1994/A2:1999 ALKALINE SECONDARY CELLS AND BATTERIES - SEALED NICKEL-CADMIUM CYLINDRICAL RECHARGEABLE SINGLE CELLS
    ISO 4032:2012 Hexagon regular nuts (style 1) Product grades A and B
    IEC 60050-426:2008 International Electrotechnical Vocabulary (IEV) - Part 426: Equipment for explosive atmospheres
    EN 60947-3:2009/A2:2015 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 3: SWITCHES, DISCONNECTORS, SWITCH-DISCONNECTORS AND FUSE-COMBINATION UNITS (IEC 60947-3:2008/A2:2015)
    ISO 4762:2004 Hexagon socket head cap screws
    ISO 262:1998 ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts
    IEC 60079-11:2011 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
    EN ISO 4028 : 2003 Hexagon socket set screws with dog point (ISO 4028:2003)
    ISO 4027:2003 Hexagon socket set screws with cone point
    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)
    EN 60086-1:2015 PRIMARY BATTERIES - PART 1: GENERAL (IEC 60086-1:2015)
    ISO 4029:2003 Hexagon socket set screws with cup point
    IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
    IEC 60086-1:2015 Primary batteries - Part 1: General
    ISO 4026:2003 Hexagon socket set screws with flat point
    EN 60243-1:2013 ELECTRIC STRENGTH OF INSULATING MATERIALS - TEST METHODS - PART 1: TESTS AT POWER FREQUENCIES (IEC 60243-1:2013)
    EN ISO 4017:2014 Fasteners - Hexagon head screws - Product grades A and B (ISO 4017:2014)
    ISO 286-2:2010 Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
    ISO 273:1979 Fasteners Clearance holes for bolts and screws
    IEC 60947-3:2008+AMD1:2012+AMD2:2015 CSV Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
    EN ISO 4032 : 2012 HEXAGON REGULAR NUTS (STYLE 1) - PRODUCT GRADES A AND B (ISO 4032:2012)
    IEC 61241-2-1:1994 Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Section 1: Methods for determining the minimum ignition temperatures of dust
    ISO 4028:2003 Hexagon socket set screws with dog point
    EN 60662:2012 HIGH-PRESSURE SODIUM VAPOUR LAMPS - PERFORMANCE SPECIFICATIONS (IEC 60662:2011, MODIFIED)
    EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
    ISO 48:2010 Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD)
    IEC 60623:2017 Secondary cells and batteries containing alkaline or other non-acid electrolytes - Vented nickel-cadmium prismatic rechargeable single cells
    IEC 61150:1992 Alkaline secondary cells and batteries - Sealed nickel-cadmium rechargeable monobloc batteries in button cell design
    ISO 178:2010 Plastics Determination of flexural properties
    IEC 60216-1:2013 Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results
    IEC 60285:1993+AMD1:1995+AMD2:1998 CSV Alkaline secondary cells and batteries - Sealed nickel-cadmium cylindrical rechargeable single cells
    IEC 61241-14:2004 Electrical apparatus for use in the presence of combustible dust - Part 14: Selection and installation
    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
    EN ISO 4762 : 2004 HEXAGON SOCKET HEAD CAP SCREWS (ISO 4762:2004)
    EN 61150 : 1993 ALKALINE SECONDARY CELLS AND BATTERIES - SEALED NICKEL CADMIUM RECHARGEABLE MONOBLOC BATTERIES IN BUTTON CELL DESIGN
    ISO 4014:2011 Hexagon head bolts Product grades A and B
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