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  • AS 2431-1981

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    Electrical equipment for explosive atmospheres - Encapsulated apparatus - Type of protection m

    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    Superseded date:  30-06-2017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:  01-01-1981

    Publisher:  Standards Australia

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

    1 - AS 2431-1981 ELECTRICAL EQUIPMENT FOR EXPLOSIVE ATMOSPHERES - ENCAPSULATED APPARATUS - TYPE OF PROTECTION m
    4 - PREFACE
    5 - CONTENTS
    6 - FOREWORD
    7 - SECTION 1. SCOPE AND GENERAL
    7 - 1.1 SCOPE.
    7 - 1.2 DEFINITIONS
    7 - 1.2.1 Encapsulation
    7 - 1.2.2 Encapsulated apparatus
    7 - 1.2.3 Encapsulating material
    7 - 1.2.4 Encased apparatus
    7 - 1.2.5 Ignition temperature
    7 - 1.2.6 Maximum surface temperature
    7 - 1.2.7 Mould
    7 - 1.2.8 Moulding
    7 - 1.3 GROUPING.
    7 - 1.4 TEMPERATURE CLASSIFICATION.
    8 - SECTION 2. DESIGN AND CONSTRUCTION
    8 - 2.1 ENCAPSULATED APPARATUS.
    8 - 2.2 EARTHING.
    8 - 2.3 ENCAPSULATING MATERIAL.
    8 - 2.4 CASING.
    8 - 2.5 THREADED JOINTS.
    8 - 2.6 MEANS FOR CONNECTION OF EXTERNAL CIRCUIT CONDUCTORS.
    8 - 2.7 WINDINGS.
    8 - 2.8 MARKING.
    9 - SECTION 3. TESTS
    9 - 3.1 GENERAL.
    9 - 3.2 DIMENSIONAL TESTS.
    9 - 3.3 ENCAPSULATING MATERIAL TESTS.
    9 - 3.3.1 General.
    9 - 3.3.2 Electric Strength.
    9 - 3.3.3 Withstand Value.
    9 - 3.3.4 Water Absorption.
    9 - 3.3.5 Igni tability and Combustion Propagation.
    9 - 3.4 IMPACT TESTS.
    9 - 3.5 FAULT LEVEL TEST.
    9 - 3.6 COMPLIANCE WITH AS C100.
    9 - 3.7 TEMPERATURE RISE TEST.
    10 - APPENDIX A - INFORMATION TO BE CONTAINED IN DRAWINGS OF ENCAPSULATED ELECTRICAL APPARATUS
    10 - A1 CONSTRUCTION.
    10 - A2 HOLES.
    10 - A3 CONDUCTORS.
    10 - A4 MATERIALS.
    11 - APPENDIX B - METHOD FOR THE DETERMINATION OF ELECTRIC STRENGTH
    11 - B1 SCOPE.
    11 - B2 FORM OF TEST SPECIMEN.
    11 - B3 NUMBER OF TEST SPECIMENS.
    11 - B4 ELECTRODES.
    11 - B5 TEST VOLTAGE.
    11 - B6 TRANSFORMER.
    11 - B7 PROCEDURE.
    12 - B8 REPORT.
    12 - B9 NOTE ON PROOF TESTING (MINUTE VALUE).
    13 - APPENDIX C - METHOD FOR THE DETERMINATION OF WATER ABSORPTION
    13 - C1 SCOPE.
    13 - C2 FORM OF TEST SPECIMEN.
    13 - C3 NUMBER OF TEST SPECIMENS.
    13 - C4 PROCEDURE.
    13 - C5 CALCULATION.
    13 - C6 REPORT.

    Abstract - (Show below) - (Hide below)

    Specifies requirements for electrical equipment which uses encapsulation as the means for ensuring suitability for use in a hazardous location. Covers design requirements and test procedures.

    Scope - (Show below) - (Hide below)

    This standard specifies requirements for encapsulated electrical apparatus or parts of encapsulated electrical apparatus, and for those features of design and construction that are considered to be essential to the securing ofreliability of the apparatus in service and for use in defined hazardous areas.

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

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

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

    AS 1874-2000 Aluminium and aluminium alloys - Ingots and castings (Reconfirmed 2018)
    AS 2430.1-1987 Classification of hazardous areas - Explosive gas atmospheres
    AS 1896-1976 Method of test for ignition temperature of gases and vapours
    AS 2341.18-1992 Methods of testing bituminous and related roadmaking products - Determination of softening point (ring and ball method)
    AS/NZS 1194.2:1996 Winding wires Enamelled rectangular copper winding wires
    AS/NZS 1194.4:1996 Winding wires Enamelled rectangular aluminium winding wires
    AS/NZS 1194.1:1996 Winding wires Enamelled round copper winding wires
    AS 2380.1-1989 Electrical equipment for explosive atmospheres - Explosion-protection techniques General requirements (Reconfirmed 2013)
    AS 1767-1975 Insulating oil for transformers and switchgear
    AS 2480-1986 Electrical equipment for explosive atmospheres- Flameproof enclosure - Type of protection d
    AS 1683.15-1976 Methods of test for elastomers - Indentation hardness of rubber and plastics by means of a durometer
    AS 2420-1987 Fire test methods for solid insulating materials and non-metallic enclosures used in electrical equipment
    AS/NZS 1194.5:1996 Winding wires Test methods
    AS/NZS 1194.3:1996 Winding wires Enamelled round aluminium winding wires

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

    AS 2290.2-1993 Electrical equipment for coal mines - Maintenance and overhaul - Overhaul and repair of electrical equipment for hazardous areas
    AS 2381.1-1991 Electrical equipment for explosive atmospheres - Selection, installation and maintenance - General requirements
    AS 2381.10-1995 Electrical equipment for explosive atmospheres - Selection, installation and maintenance - Equipment in combustible dust (Class II) areas
    AS/NZS 61241.14:2005 Electrical apparatus for use in the presence of combustible dust Selection and installation (IEC 61241-14, Ed.1.0(2004) MOD)
    AS/NZS 3800:2005 Electrical equipment for explosive atmospheres - Repair and overhaul
    AS/NZS 2381.1:2005 Electrical equipment for explosive gas atmospheres - Selection, installation and maintenance - General requirements
    HB 13-2000 Electrical equipment for hazardous areas
    MP 69-1993 Explosion-protected electrical equipment - Certification scheme - Policy
    SAA HB37.2-1993 Handbook of Australian fire Standards Electrical equipment (Reconfirmed 2016)
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