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  • 12/30257150 DC : 0

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    BS EN 62770 - FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS LIQUIDS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT

    Available format(s):  Hardcopy, PDF

    Superseded date:  30-04-2014

    Language(s):  English

    Published date: 

    Publisher:  British Standards Institution

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Properties, their significance and test methods
    5 Classification, identification, general delivery
      requirements and sampling
    Annex A (informative) - Summary of the test method
            for evaluating oxidation stability of unused
            natural esters
    Annex B (informative) - Low-viscosity insulating
            fluids based on natural esters
    Bibliography

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

    Comment Closes On
    Committee GEL/10
    Document Type Draft
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

    ISO 3016:1994 Petroleum products Determination of pour point
    ISO 2719:2016 Determination of flash point — Pensky-Martens closed cup method
    IEC 62021-1:2003 Insulating liquids - Determination of acidity - Part 1: Automatic potentiometric titration
    IEC 62021-2:2007 Insulating liquids - Determination of acidity - Part 2: Colourimetric titration
    IEC 61125:1992 Unused hydrocarbon based insulating liquids - Test methods for evaluating the oxidation stability
    ISO 3675:1998 Crude petroleum and liquid petroleum products Laboratory determination of density Hydrometer method
    IEC 61039:2008 Classification of insulating liquids
    IEC 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
    IEC 60156:1995 Insulating liquids - Determination of the breakdown voltage at power frequency - Test method
    IEC 62535:2008 Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil
    IEC 60475:2011 Method of sampling insulating liquids
    IEC 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
    ASTM D 1275 : 2015 Standard Test Method for Corrosive Sulfur in Electrical Insulating Liquids
    IEC 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
    ISO 12185:1996 Crude petroleum and petroleum products — Determination of density — Oscillating U-tube method
    IEC 60050-421:1990 International Electrotechnical Vocabulary (IEV) - Part 421: Power transformers and reactors
    IEC 62697-1:2012 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids - Part 1: Test method for quantitative determination of dibenzyldisulfide (DBDS)
    IEC 60666:2010 Detection and determination of specified additives in mineral insulating oils
    IEC 61620:1998 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method
    IEC 60814:1997 Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration
    IEC 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
    IEC 61619:1997 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography
    IEC 61198:1993 Mineral insulating oils - Methods for the determination of 2-furfural and related compounds
    IEEE C57.147-2008 IEEE Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers
    IEC 62021-3:2014 Insulating liquids - Determination of acidity - Part 3: Test methods for non-mineral insulating oils
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