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  • DEFSTAN 22-48/3(2010) : 2010

    Current The latest, up-to-date edition.

    SPECIFICATION FOR POSITIVE TEMPERATURE COEFFICIENT THERMISTORS FOR THERMAL PROTECTION OF ELECTRIC MOTORS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  28-05-2010

    Publisher:  UK Ministry of Defence Standards

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

    Foreword
    Introduction
    1 Scope
    2 Warning
    3 Normative References
    4 Definitions
    5 Abbreviations
    6 Performance Specification
    7 Military Standards/Requirements
    8 Construction

    Abstract - (Show below) - (Hide below)

    Specifies the requirements for Positive Temperature Coefficient Thermistors (PTCT) for the thermal protection of electric motors up to 450 V operating voltage.

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

    Development Note Supersedes DEFSTAN 22-48/2(2001). (06/2010) This standard is obsolescent because it is no longer required for procurement of new equipment but is retained for maintenance purposes in support of existing in-service equipment. (07/2015)
    Document Type Standard
    Publisher UK Ministry of Defence Standards
    Status Current
    Supersedes

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

    BS EN 60068-2-6:2008 Environmental testing Tests. Test Fc. Vibration (sinusoidal)
    IEC 60738-1:2006+AMD1:2009 CSV Thermistors - Directly heated positive temperature coefficient -Part 1: Generic specification
    BS EN 60068-2-21:2006 Environmental testing Tests. Test U: Robustness of terminations and integral mounting devices
    BS EN 60068-2-58 : 2015 ENVIRONMENTAL TESTING - PART 2-58: TESTS - TEST TD: TEST METHODS FOR SOLDERABILITY, RESISTANCE TO DISSOLUTION OF METALLIZATION AND TO SOLDERING HEAT OF SURFACE MOUNTING DEVICES (SMD)
    IEC 60410:1973 Sampling plans and procedures for inspection by attributes
    BS EN 60068-2-1:2007 Environmental testing Tests. Test A. Cold
    BS EN 60068-2-78:2013 Environmental testing Tests. Test Cab: Damp heat, steady state
    BS EN 60068-2-30:2005 Environmental testing Tests. Test Db and guidance: Damp heat, cyclic (12 h + 12 h cycle)
    IEC 60738-1-1:2008 Thermistors - Directly heated positive step-function temperature coefficient - Part 1-1: Blank detail specification - Current limiting application - Assessment level EZ
    BS EN 60068-2-2:2007 Environmental testing Tests. Test B. Dry heat
    BS EN 60068-2-14:2009 Environmental testing Tests. Test N. Change of temperature
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