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BS EN 61125:1993

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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

Hardcopy , PDF

Superseded date

04-30-2018

Language(s)

English

Published date

07-28-2004

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

Describes three test methods using same apparatus, both uninhibited and inhibited.

Committee
GEL/10
DevelopmentNote
Supersedes BS 2000-307(1983), 01/207368 DC and 80/22508 DC (08/2004)
DocumentType
Standard
Pages
32
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

08/30167496 DC : DRAFT FEB 2008 BS 148 - RECLAIMED MINERAL INSULATING OIL FOR TRANSFORMERS AND SWITCHGEAR - SPECIFICATION
BS 148:1998 Specification for unused and reclaimed mineral insulating oils for transformers and switchgear
BS 5730:2001 Monitoring and maintenance guide for mineral insulating oils in electrical equipment
BS 148:2009 Reclaimed mineral insulating oil for transformers and switchgear. Specification
BS 148:1997 Specification for unused and reclaimed mineral insulating oils for transformers and switchgear

ISO 4793:1980 Laboratory sintered (fritted) filters — Porosity grading, classification and designation
BS 1752:1983 Specification for laboratory sintered or fritted filters including porosity grading
BS 5737:1979 Method for 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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