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    AS 60068.2.2-2003

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    Environmental testing Tests - Test B: Dry heat (Reconfirmed 2018)

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

    Superseded date:  09-05-2023

    Language(s):  English

    Published date:  20-03-2003

    Publisher:  Standards Australia

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

    1 - AS 60068.2.2-2003 ENVIRONMENTAL TESTING - TESTS-TESTS B: DRY HEAT
    4 - PREFACE
    5 - CONTENTS
    7 - INTRODUCTION
    7 - 1 General
    8 - 2 Application of tests for non heat-dissipating specimens versus tests for heat-dissipating specimens
    8 - 3 For non heat-dissipating specimens: Application of tests with sudden change of temperature versus tests with gradual change of temperature
    8 - 4 Testing of heat-dissipating specimens with and without forced air circulation
    8 - 5 Diagrammatic representations
    11 - SECTION ONE – TEST Ba: DRY HEAT FOR NON HEAT-DISSIPATING SPECIMEN WITH SUDDEN CHANGE OF TEMPERATURE
    11 - 1 Scope
    11 - 2 General description
    11 - 3 Description of test apparatus
    12 - 4 Severities
    12 - 4.1 Temperature
    12 - 4.2 Duration
    12 - 5 Preconditioning
    12 - 6 Initial measurements
    13 - 7 Conditioning
    13 - 8 Intermediate measurements
    14 - 9 Recovery
    14 - 10 Final measurements
    14 - 11 Information to be given in the relevant specification
    15 - SECTION TWO – TEST Bb: DRY HEAT FOR NON HEAT-DISSIPATING SPECIMEN WITH GRADUAL CHANGE OF TEMPERATURE
    15 - 12 Scope
    15 - 13 General description
    15 - 14 Description of test apparatus
    16 - 15 Severities
    16 - 15.1 Temperature
    16 - 15.2 Duration
    16 - 16 Preconditioning
    16 - 17 Initial measurements
    17 - 18 Conditioning
    18 - 19 Intermediate measurements
    18 - 20 Recovery
    18 - 21 Final measurements
    18 - 22 Information to be given in the relevant specification
    19 - SECTION THREE – TEST Bc: DRY HEAT FOR HEAT-DISSIPATING SPECIMEN WITH SUDDEN CHANGE OF TEMPERATURE
    19 - 23 Scope
    19 - 24 General description
    19 - 25 Description of test apparatus
    19 - 25.1 Testing chamber
    20 - 25.2 Mounting
    20 - 26 Severities
    21 - 26.1 Temperature
    21 - 26.2 Duration
    21 - 27 Preconditioning
    21 - 28 Initial measurements
    21 - 29 Conditioning
    21 - 29.1 Specimen without artificial cooling
    21 - 29.1.1 Testing with no forced air circulation
    22 - 29.1.2 Testing with forced air circulation
    24 - 29.2 Specimen with artificial cooling
    24 - 29.2.1 Cooling system “isolated” from the chamber
    24 - 29.2.2 Cooling system “not isolated” from the chamber
    24 - 30 Intermediate measurements
    24 - 31 Recovery
    25 - 32 Final measurements
    25 - 33 Information to be given in the relevant specification
    26 - SECTION FOUR – TEST Bd: DRY HEAT FOR HEAT-DISSIPATING SPECIMEN WITH GRADUAL CHANGE OF TEMPERATURE
    26 - 34 Scope
    26 - 35 General description
    26 - 36 Description of test apparatus
    26 - 36.1 Testing chamber
    27 - 36.2 Mounting
    27 - 37 Severities
    28 - 37.1 Temperature
    28 - 37.2 Duration
    28 - 38 Preconditioning
    28 - 39 Initial measurements
    28 - 40 Conditioning
    28 - 40.1 Specimen without artificial cooling
    28 - 40.1.1 Testing with no forced air circulation
    29 - 40.1.2 Testing with forced air circulation
    32 - 40.2 Specimen with artificial cooling
    32 - 40.2.1 Cooling system “isolated” from the chamber
    32 - 40.2.2 Cooling system “not isolated” from the chamber
    32 - 41 Intermediate measurements
    32 - 42 Recovery
    33 - 43 Final measurements
    33 - 44 Information to be given in the relevant specification
    34 - Annex A - Volume of test specimen
    35 - Annex B - Nomogram for correction for ambient temperature
    36 - Annex C - Diagrammatic representation of test with forced air circulation for Method A of Test Bd
    37 - Annex D - Diagrammatic representation of test with forced air circulation for test Bc and for Method B of Test Bd
    38 - Annex E - Flow diagrammatic representation of outline of Method A of Test Bd (40.1.2)
    39 - Annex F - Flow diagrammatic representation of outline of the method described for Test Bc (29.1.2) and Method B of Test Bd (4

    Abstract - (Show below) - (Hide below)

    The objective of this Standards is to provide a standard test procedure to determine the suitability of non heat-dissipating components, equipment or other articles for use and/or storage under conditions of high temperature and for which the subjection to a sudden change of temperature has no detrimental effect. This procedure is for specimens which are subjected to an elevated temperature for a time long enough for the specimen to achieve temperature stability.

    Scope - (Show below) - (Hide below)

    To provide a standard test procedure to determine the suitability of non heat-dissipating components, equipment or other articles for use and/or storage under conditions of high temperature and for which the subjection to a sudden change of temperature has no detrimental effect. This procedure is for specimens which are subjected to an elevated temperature for a time long enough for the specimen to achieve temperature stability. In this procedure, the test duration is normally measured from the time when the specimen achieves temperature stability. For cases where this does not apply, see clause 1 of the introduction.

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

    Committee EL-026
    Document Type Standard
    Product Note Reconfirmed 14/09/2018.
    This standard has been reconfirmed in Australia in 2018 and remains current in New Zealand. Reconfirmation Notice 14/09/2018
    Publisher Standards Australia
    Status Superseded
    Superseded By
    Supersedes

    History - (Show below) - (Hide below)

    First published as AS 60068.2.2-2003.
    Reconfirmed 2018. First published as AS 60068.2.2-2003.

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

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    AS 2067-2008 Substations and high voltage installations exceeding 1 kV a.c.
    AS 60947.5.4-2004 Low-voltage switchgear and controlgear Control circuit devices and switching elements - Methods of assessing the performance of low-energy contacts - Special tests
    AS 5062-2006 Fire protection for mobile and transportable equipment
    AS 61204.1-2003 Low-voltage power supply devices, d.c. output Performance characteristics (Reconfirmed 2014)
    AS 7240.11-2008 Fire detection and alarm systems Manual call points (ISO 7240-11:2005, MOD)
    ATS 4747.2-2008 Meters for non-urban water supply Specification for closed conduit meters fully charged
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    AS 2650-2005 Common specifications for high-voltage switchgear and controlgear standards (IEC 60694 Ed.2.2(2002) MOD)
    AS 62271.1-2012 High-voltage switchgear and controlgear - Common specifications
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