• CEI EN 62770 : 2014

    Current The latest, up-to-date edition.

    FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2014

    Publisher:  Comitato Elettrotecnico Italiano

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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 (normative) - Summary of the test
            method for evaluating oxidation
            stability of unused natural esters
    Annex B (informative) - Specifications of
            low-viscosity insulating fluids
            derived from natural esters
    Bibliography
    Annex ZA (normative) - Normative
             references to international
             publications with their
             corresponding European
             publications

    Abstract - (Show below) - (Hide below)

    Explains specifications and test methods for unused natural esters in transformers and similar oil-impregnated electrical equipment in which a liquid is required as an insulating and heat transfer medium.

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

    Committee CT 10
    Development Note Classificazione CEI 10-50. (02/2015)
    Document Type Standard
    Publisher Comitato Elettrotecnico Italiano
    Status Current

    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
    EN 60156:1995 Insulating liquids - Determination of the breakdown voltage at power frequency - Test method
    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 60050-212:2010 International Electrotechnical Vocabulary (IEV) - Part 212: Electrical insulating solids, liquids and gases
    EN 61125:1993/A1:2004 UNUSED HYDROCARBON-BASED INSULATING LIQUIDS - TEST METHODS FOR EVALUATING THE OXIDATION STABILITY
    EN 61619 : 1997 INSULATING LIQUIDS - CONTAMINATION BY POLYCHLORINATED BIPHENYLS (PCBS) - METHOD OF DETERMINATION BY CAPILLARY COLUMN GAS CHROMATOGRAPHY
    IEC 60076-14:2013 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
    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
    EN 61100 : 1992 CLASSIFICATION OF INSULATING LIQUIDS ACCORDING TO FIRE POINT AND NET CALORIFIC VALUE
    IEC 61100:1992 Classification of insulating liquids according to fire-point and net calorific value
    EN 61620 : 1999 INSULATING LIQUIDS - DETERMINATION OF THE DIELECTRIC DISSIPATION FACTOR BY MEASUREMENT OF THE CONDUCTANCE AND CAPACITANCE - TEST METHOD
    IEC 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
    IEC 61868:1998 Mineral insulating oils - Determination of kinematic viscosity at very low temperatures
    EN 61198 : 1994 MINERAL INSULATING OILS - METHODS FOR THE DETERMINATION OF 2-FURFURAL AND RELATED COMPOUNDS
    EN 60814 : 1997 INSULATING LIQUIDS - OIL-IMPREGNATED PAPER AND PRESSBOARD - DETERMINATION OF WATER BY AUTOMATIC COULOMETRIC KARL FISCHER TITRATION
    EN 62535 : 2009 INSULATING LIQUIDS - TEST METHOD FOR DETECTION OF POTENTIALLY CORROSIVE SULPHUR IN USED AND UNUSED INSULATING OIL
    ASTM D 1275 : 2015 Standard Test Method for Corrosive Sulfur in Electrical Insulating Liquids
    EN 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 62697-1:2012)
    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
    EN 60296:2012 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR (IEC 60296:2012)
    EN 62021-3 : 2014 INSULATING LIQUIDS - DETERMINATION OF ACIDITY - PART 3: TEST METHODS FOR NON MINERAL INSULATING OILS (IEC 62021-3:2014)
    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)
    EN 60247 : 2004 INSULATING LIQUIDS - MEASUREMENT OF RELATIVE PERMITTIVITY, DIELECTRIC DISSIPATION FACTOR (TAN DELTA) AND D.C. RESISTIVITY
    EN 60076-14 : 2013 POWER TRANSFORMERS - PART 14: LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
    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 ACCEPTANCE AND MAINTENANCE OF NATURAL ESTER FLUIDS IN TRANSFORMERS
    EN 60475 : 2011 Method of sampling insulating liquids
    IEC 62021-3:2014 Insulating liquids - Determination of acidity - Part 3: Test methods for non-mineral insulating oils
    EN 60666 : 2010 DETECTION AND DETERMINATION OF SPECIFIED ADDITIVES IN MINERAL INSULATING OILS
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