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BS 5737:1979

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Method for the measurement of relative permittivity, dielectric dissipation factor and d.c. resistivity of insulating liquids
Available format(s)

Hardcopy , PDF

Superseded date

26-04-2004

Language(s)

English

Published date

31-08-1979

National foreword
Cooperating organizations
1 Scope
2 Definitions
3 General considerations
4 Apparatus
5 Cleaning solvents
6 Cleaning the test cell
7 Sampling
8 Conditioning and preparation of specimens
9 Filling the test cell
10 Test temperature
11 Measurement of dissipation factor
12 Measurement of relative permittivity
13 Measurement of d.c. resistivity
Appendix
A Alternative procedures for routine testing of
    dielectric dissipation factor and resistivity of
    insulating liquids
Figures
1 Example of a three-terminal cell for measurements on
    liquids
1a Example of screening for the cell of Figure 1
2 Example of a two-terminal cell for measurements on
    liquids

Reference tests for determining the principal electrical characteristics of hydrocarbon insulating oils and askarels (applicable to unused oils and oils in service). Also gives simplified procedure for routine testing.

Committee
GEL/10
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

BS EN 61125:1993 Unused hydrocarbon-based insulating liquids. Test methods for evaluating the oxidation stability
BS 148:1998 Specification for unused and reclaimed mineral insulating oils for transformers and switchgear
EN 61125:1993/A1:2004 UNUSED HYDROCARBON-BASED INSULATING LIQUIDS - TEST METHODS FOR EVALUATING THE OXIDATION STABILITY
BS EN 60465:1992 Specification for unused insulating mineral oils for cables with oil ducts
BS 5730:2001 Monitoring and maintenance guide for mineral insulating oils in electrical equipment
BS 3573:1990 Specification for polyolefin copper-conductor telecommunication cables
BS 7704:1993 Specifications for silicone liquids for electrical purposes
BS 7506-2:1996 Methods for measurement in electrostatics Test methods
BS EN 60867:1994 Insulating liquids. Specifications for unused liquids based on synthetic aromatic hydrocarbons
BS 148:1997 Specification for unused and reclaimed mineral insulating oils for transformers and switchgear

IEC 60093:1980 Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials

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