I.S. EN 60247:2004
Current
The latest, up-to-date edition.
INSULATING LIQUIDS - MEASUREMENT OF RELATIVE PERMITTIVITY, DIELECTRIC DISSIPATION FACTOR (TAN DELTA) AND D.C. RESISTIVITY
Hardcopy , PDF
English
01-01-2004
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FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 Permittivity and dielectric dissipation factor
(tan delta)
4.2 Resistivity
4.3 Sequence of determinations
4.4 Factors leading to erroneous results
5 Apparatus
5.1 Test cell
5.2 Test equipment
5.3 Glassware
5.4 Measuring instrument for permittivity and tan
delta
5.5 Measuring instrument for d.c. resistivity
5.6 Time-measuring device
5.7 Safety
6 Cleaning solvent
7 Cleaning the test cell
7.1 Trisodium phosphate cleaning procedure
7.2 Storage of cell
8 Sampling
9 Preparation of samples
10 Conditioning and filling the test cell
10.1 Cell conditioning
10.2 Filling the cell
11 Test temperature
12 Measurement of dissipation factor (tan delta)
12.1 Test voltage
12.2 Measurement
12.3 Report
13 Measurement of relative permittivity
13.1 Measurement
13.2 Report
14 Measurement of d.c. resistivity
14.1 Test voltage
14.2 Time of electrification
14.3 Measurement
14.4 Report
Annex A (informative) Example of an alternative procedure
for cleaning the test cell - Ultrasonic procedure
Annex B (informative) Example of a simplified cleaning
procedure for a test cell
Annex C (informative) Alternative procedures for routine
testing of dielectric dissipation factor and
resistivity of insulating liquids
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Defines methods for the determination of the dielectric dissipation factor (tan delta), relative permittivity and d.c. resistivity of any insulating liquid material at the test temperature. The methods are primarily intended for making reference tests on unused liquids.
| 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
|
| ISBN |
2-8318-7402-5
|
| Pages |
68
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| BS EN 60247:2004 | Identical |
| EN 60247:2004 | Identical |
| DIN EN 60247 : 2005 | Identical |
| NF EN 60247 : 2004 | Identical |
| IEC 60247:2004 | Identical |
| NBN EN 60247 : 2005 | Identical |
| UNE-EN 60247:2004 | Identical |
| IEC 60250:1969 | Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths |
| IEC 60475:2011 | Method of sampling insulating liquids |
| EN 61620:1999 | Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method |
| HD 429 : 200S1 | METHODS OF TEST FOR VOLUME RESISTIVITY AND SURFACE RESISTIVITY OF SOLID ELECTRICAL INSULATING MATERIALS |
| IEC 60093:1980 | Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials |
| IEC 61620:1998 | Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method |
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