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I.S. EN 61203:1995

Current
Current

The latest, up-to-date edition.

SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES - GUIDE FOR MAINTENANCE OF TRANSFORMER ESTERS IN EQUIPMENT
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-1995

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

FOREWORD
1 Scope
2 Normative references
3 Tests and their significance
  3.1 Colour and appearance
  3.2 Density
  3.3 Kinematic viscosity
  3.4 Flash point - Fire point
  3.5 Water content
  3.6 Neutralization value
  3.7 Breakdown voltage
  3.8 D.C. resistivity
  3.9 Dielectric dissipation factor
  3.10 Diagnosis by gas analysis (IEC 567 and IEC 599)
4 Frequency of examination of liquids in service
5 Sampling
6 Testing procedures
  6.1 Field screening tests
  6.2 Laboratory tests
7 Classification of esters in service
8 Treatment of ester liquids in group 2
  8.1 Vacuum treatment and filtration
  8.2 Molecular sieve and filtration
9 Materials used for maintenance equipment
ANNEX ZA (normative) OTHER INTERNATIONAL PUBLICATIONS
         QUOTED IN THIS STANDARD WITH THE REFERENCES OF THE
         RELEVANT EUROPEAN PUBLICATIONS

Assists the equipment operator in assessing the quality of the liquid during use in the equipment and maintaining it in a serviceable condition.

DevelopmentNote
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType
Standard
Pages
24
PublisherName
National Standards Authority of Ireland
Status
Current

Standards Relationship
UNE-EN 61203:1996 Identical
NBN EN 61203 : 1995 Identical
NF EN 61203 : 1994 Identical
SN EN 61203 : 1994 Identical
BS EN 61203:1995 Identical
DIN EN 61203 : 1995 Identical
EN 61203:1994 Identical
IEC 61203:1992 Identical

HD 397 : 200S1 INTERPRETATION OF THE ANALYSIS OF GASES IN TRANSFORMERS AND OTHER OIL-FILLED ELECTRICAL EQUIPMENT IN SERVICE
IEC 60599:2015 Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis
EN 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
IEC 60567:2011 Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance
IEC 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
EN 60567:2011 OIL-FILLED ELECTRICAL EQUIPMENT - SAMPLING OF GASES AND ANALYSIS OF FREE AND DISSOLVED GASES - GUIDANCE (IEC 60567:2011)

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