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  • AS/NZS 60079.1:2002

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 explosive gas atmospheres Flameproof enclosures ‘d’

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  30-06-2017

    Language(s):  English

    Published date:  11-03-2002

    Publisher:  Standards Australia

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

    1 - AS/NZS 60079.1:2002 ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - FLAMEPROOF ENCLOSURES 'd'
    4 - PREFACE
    5 - CONTENTS
    7 - 1 Scope
    7 - 2 Normative references
    8 - 3 Definitions
    8 - 3.1 flameproof enclosure ‘d’
    8 - 3.2 volume
    8 - 3.3 flameproof joint
    8 - 3.4 width of flameproof joint (L)
    9 - 3.5 distance (l)
    9 - 3.6 gap of flameproof joint (i)
    9 - 3.7 maximum experimental safe gap (MESG) (for an explosive mixture)
    9 - 3.8 shaft
    9 - 3.9 operating rod
    9 - 3.10 pressure-piling
    9 - 3.11 quick-acting door or cover
    9 - 3.12 door or cover fixed by threaded fasteners
    9 - 3.13 threaded door or cover
    9 - 3.14 breathing device
    10 - 3.15 draining device
    10 - 4 Apparatus grouping and temperature classification
    10 - 5 Flameproof joints
    10 - 5.1 General requirements
    10 - 5.2 Non-threaded joints
    10 - 5.2.1 Width of joints (L)
    10 - 5.2.2 Gap (i)
    11 - 5.2.3 Spigot joints
    12 - 5.2.4 Holes in joint surfaces
    14 - 5.2.5 Conical joints
    14 - 5.2.6 Joints with partial cylindrical surfaces (not permitted for Group IIC)
    14 - 5.2.7 Additional requirements for joints of electrical apparatus of Group IIC
    14 - 5.2.8 Serrated joints
    16 - 5.3 Threaded joints
    17 - 5.4 Gaskets (including O-rings)
    19 - 5.5 Apparatus using capillaries
    19 - 6 Cemented joints
    19 - 6.1 General
    19 - 6.2 Mechanical strength
    19 - 6.3 Width of cemented joints
    19 - 7 Operating rods
    19 - 8 Supplementary requirements for shafts and bearings
    19 - 8.1 Joints of shafts
    20 - 8.1.1 Cylindrical joints
    20 - 8.1.2 Labyrinth joints
    20 - 8.1.3 Joints with floating glands
    22 - 8.2 Bearings
    22 - 8.2.1 Sleeve bearings
    22 - 8.2.2 Rolling-element bearings
    22 - 9 Light-transmitting parts
    22 - 10 Breathing and draining devices which form part of a flameproof enclosure
    23 - 10.1 Openings for breathing or draining
    23 - 10.2 Composition limits
    23 - 10.3 Dimensions
    23 - 10.4 Elements with measurable paths
    23 - 10.5 Elements with non-measurable paths
    23 - 10.6 Removable devices
    24 - 10.7 Mounting arrangements of the elements
    24 - 10.8 Mechanical strength
    24 - 10.9 Breathing devices and draining devices when used as Ex components
    24 - 10.9.1 Mounting arrangements of the elements and components
    24 - 10.9.2 Type tests for breathing and draining devices used as Ex components
    27 - 10.9.3 Marking
    27 - 10.9.4 Component certificate
    27 - 11 Fasteners, associated holes and closing devices
    29 - 12 Materials and mechanical strength of enclosures; materials inside the enclosures
    30 - 13 Entries for flameproof enclosures
    30 - 13.1 Cable entries
    30 - 13.2 Conduit entries
    31 - 13.3 Plugs and sockets and cable couplers
    31 - 13.4 Bushings
    32 - 14 Verification and tests
    32 - 15 Type tests
    33 - 15.1 Tests of ability of the enclosure to withstand pressure
    33 - 15.1.1 General
    33 - 15.1.2 Determination of explosion pressure (reference pressure)
    34 - 15.1.3 Overpressure test
    35 - 15.2 Test for non-transmission of an internal ignition
    35 - 15.2.1 Electrical apparatus of Groups I, IIA and IIB
    36 - 15.2.2 Electrical apparatus of Group lIC
    37 - 15.3 Test for sealing of stopping boxes with setting compound
    38 - 15.4 Tests of flameproof enclosures with breathing and draining devices
    38 - 15.4.1 Tests of ability of the enclosure to withstand pressure
    39 - 15.4.2 Thermal tests
    39 - 15.4.3 Test for non- transmission of an internal ignition.
    40 - 16 Routine tests
    41 - 17 Switchgear for Group I
    41 - 17.1 Means of isolation
    42 - 17.2 Doors or covers
    42 - 17.2.1 Quick-acting doors or covers
    42 - 17.2.2 Doors or covers fixed by screws
    42 - 17.2.3 Threaded doors or covers
    42 - 18 Lampholders and Iampcaps
    42 - 18.1 Device preventing lamps working loose
    42 - 18.2 Holders and caps for lamps with cylindrical caps
    43 - 18.3 Holders for lamps with threaded caps
    43 - 19 Non-metallic enclosures and non-metallic parts of enclosures
    43 - 19.1 Permitted non-metallic enclosures
    43 - 19.2 Special constructional requirements
    43 - 19.2.1 Resistance to tracking and creepage distances on internal surfaces of the enclosure walls
    43 - 19.3 Supplementary requirements for type tests
    44 - 19.3.1 Tests for flameproofness
    44 - 19.3.2 Flammability
    46 - 19.4 Test report
    47 - Annex A - Additional requirements for crimped ribbon elements of breathing and draining devices
    48 - Annex B - Additional requirements for elements, with non-measurable paths, of breathing and draining devices
    48 - B.1 Sintered metal elements
    48 - B.2 Pressed metal wire elements
    49 - B.3 Metal foam elements
    50 - Annex C - Additional requirements for flameproof cable entries
    50 - C1
    50 - C2 Constructional requirements
    51 - C.3 Type tests

    Abstract - (Show below) - (Hide below)

    Specifies the requirements for the construction and testing of electrical apparatus with the type of protection flameproof enclosure 'd', intended for use in explosive gas atmospheres. This Standard is identical with and has been reproduced from IEC 60079-1:2001, including Corrigendum 1:2001.

    Scope - (Show below) - (Hide below)

    This part of IEC 60079 contains the specific requirements for the construction and testing of electrical apparatus with the type of protection flameproof enclosure d, intended for use in potentially explosive gas atmospheres.

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

    Committee EL-014
    Document Type Standard
    Publisher Standards Australia
    Status Superseded
    Superseded By
    Supersedes
    Under Revision

    History - (Show below) - (Hide below)

    First published as AS/NZS 60079.1:2002.

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

    AS 1939-1990 Degrees of protection provided by enclosures for electrical equipment (IP Code)
    AS/NZS 4695.112:1996 Fire hazard testing of electrotechnical products Method for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions
    AS/NZS 60079.0:2000 Electrical apparatus for explosive gas atmospheres General requirements
    AS/NZS 60079.11:2000 Electrical apparatus for explosive gas atmospheres Intrinsic safety 'i'

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

    AS 60849-2004 Sound systems for emergency purposes (IEC 60849:1998 MOD)
    AS/NZS 2290.1:2005 Electrical equipment for coal mines - Introduction and maintenance - For hazardous areas
    AS/NZS 3800:2005 Electrical equipment for explosive atmospheres - Repair and overhaul
    AS/NZS 60079.0:2005 Electrical apparatus for explosive gas atmospheres General requirements
    AS/NZS 4783.2:2002 Performance of electrical lighting equipment - Ballasts for fluorescent lamps Energy labelling and minimum energy performance standards requirements (Reconfirmed 2013)
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