• EN 61125:1993/A1:2004

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    UNUSED HYDROCARBON-BASED INSULATING LIQUIDS - TEST METHODS FOR EVALUATING THE OXIDATION STABILITY

    Available format(s): 

    Superseded date:  01-03-2018

    Language(s): 

    Published date:  12-01-2013

    Publisher:  European Committee for Standards - Electrical

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

    Foreword
    Section 1 - General
    1.1 Scope
    1.2 Normative references
    1.3 General principle of the methods
    1.4 Equipment
    1.5 Reagents
    1.6 Cleaning of test vessels
    1.7 Catalyst
    1.8 Insulating liquid sample conditioning
    1.9 Determinations on the oxidized insulating liquid
    Section 2 - Method A
    2.1 Outline of the method
    2.2 Test conditions
    2.3 Procedure
    2.4 Determinations on the oxidized oil
    2.5 Report
    2.6 Precision
    Section 3 - Method B
    3.1 Outline of the method
    3.2 Test conditions
    3.3 Procedure
    3.4 Determinations on the oxidized oil (optional)
    3.5 Report
    3.6 Precision
    Section 4 - Method C
    4.1 Outline of the method
    4.2 Test conditions
    4.3 Procedure
    4.4 Determinations on the oxidized insulating liquid
    4.5 Report
    4.6 Precision
    Annex A (normative) Determination of maximum diameter
            of the pores of a fritted glass filter
    Annex B (normative) Thermometer specifications
    Annex ZA (normative) Other international publications
             quoted in this standard with the references
             of the relevant European publications
    Figures

    Abstract - (Show below) - (Hide below)

    Describes three test methods (using the same apparatus) for evaluating the oxidation stability of mineral insulating oils and of hydrocarbon-based insulating liquids. Coverage includes the following items common to the three methods; the cleaning of the glassware; the equipment and reagents; the determinations on the oxidized insulating liquid; the preparation of the catalyst and of the insulating liquid sample to be tested.

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

    Committee SR 10
    Development Note Supersedes HD 486. (05/2001) Redesignated as EN IEC 61125. (03/2018)
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By
    Supersedes

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

    S.R. CLC/TR 50503:2010 GUIDELINES FOR THE INVENTORY CONTROL, MANAGEMENT, DECONTAMINATION AND/OR DISPOSAL OF ELECTRICAL EQUIPMENT AND INSULATING LIQUIDS CONTAINING PCBS
    CEI EN 61099 : 2011 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES
    I.S. EN 62701:2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - RECYCLED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEARS
    I.S. EN 60296:2012 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR (IEC 60296:2012 (EQV))
    EN 62701 : 2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - RECYCLED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEARS (IEC 62701:2014)
    EN 61099:2010 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES
    BS EN 61099:2010 Insulating liquids. Specifications for unused synthetic organic esters for electrical purposes
    I.S. EN 60422:2013 MINERAL INSULATING OILS IN ELECTRICAL EQUIPMENT - SUPERVISION AND MAINTENANCE GUIDANCE (IEC 60422:2013 (EQV))
    CEI EN 60763-2 : 2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
    CEI EN 61065 : 1997 METHODS FOR EVALUATING THE LOW TEMPERATURE FLOW PROPERTIES OF MINERAL INSULATING OILS AFTER AGEING
    I.S. EN 61099:2010 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES
    I.S. EN 60763-2:2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
    CEI EN 62770 : 2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT
    BS EN 60422:2013 (published 2014-03) Mineral insulating oils in electrical equipment. Supervision and maintenance guidance
    BS EN 60296 : 2012 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR
    CEI EN 60296 : 2013 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR
    EN 60296:2012 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR (IEC 60296:2012)
    BS EN 62770:2014 Fluids for electrotechnical applications. Unused natural esters for transformers and similar electrical equipment
    06/30159746 DC : 0 BS EN 50503 - FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - STANDARD FOR THE INVENTORY CONTROL, MANAGEMENT, DECONTAMINATION AND/OR DISPOSAL OF ELECTRICAL EQUIPMENT AND INSULATING LIQUIDS CONTAINING PCBS
    BS EN 60079-6:2007 EXPLOSIVE ATMOSPHERES - PART 6: EQUIPMENT PROTECTION BY BY LIQUID IMMERSION 'O'
    I.S. EN 62770:2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT
    UNE-EN 60079-6:2016 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
    UNE-EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
    UNE-EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
    UNE-EN 62770:2014 Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment
    BS EN 60763-2 : 2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
    CEI EN 60079-6 : 2016 EXPLOSIVE ATMOSPHERES - PART 6: EQUIPMENT PROTECTION BY LIQUID IMMERSION 'O'
    CLC/TR 50503 : 2010 Guidelines for the inventory control, management, decontamination and/or disposal of electrical equipment and insulating liquids containing PCBs
    UNE-EN 61099:2011 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
    I.S. EN 60079-6:2015 EXPLOSIVE ATMOSPHERES - PART 6: EQUIPMENT PROTECTION BY LIQUID IMMERSION 'O'
    EN 62770 : 2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT (IEC 62770:2013)
    EN 60763-2:2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
    EN 60079-6:2015 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
    EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

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

    ISO 4793:1980 Laboratory sintered (fritted) filters — Porosity grading, classification and designation
    BS 1752(1983) : 1983 SPECIFICATION FOR LABORATORY SINTERED OR FRITTED FILTERS INCLUDING POROSITY GRADING
    BS 5737(1979) : 1979 METHOD OF THE MEASUREMENT OF RELATIVE PERMITTIVITY DIELECTRIC DISSIPATION FACTOR AND D.C. RESISTIVITY OF INSULATING LIQUIDS
    ISO 383:1976 Laboratory glassware — Interchangeable conical ground joints
    ISO 6344-1:1998 Coated abrasives Grain size analysis Part 1: Grain size distribution test
    IEC 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
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