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BS EN 60641-2:2004

Current

Current

The latest, up-to-date edition.

Pressboard and presspaper for electrical purposes Methods of tests

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-11-2004

1 Scope
2 Normative references
3 Terms and definitions
4 General notes on tests
   4.1 Conditioning
   4.2 Drying
   4.3 Tolerances
   4.4 Results
5 Thickness
   5.1 Test apparatus
   5.2 Setting gauge
   5.3 Procedure
   5.4 Results
6 Apparent density
7 Tensile strength and elongation
   7.1 Principle
   7.2 Determination with non-folded test pieces
   7.3 Determination with folded test pieces
8 Internal tearing resistance
9 Edge tearing resistance
   9.1 Procedure
   9.2 Results
10 Compressibility
   10.1 Principle
   10.2 Test apparatus
   10.3 Test pieces
   10.4 Procedure
   10.5 Results
11 Shrinkage
   11.1 Test apparatus
   11.2 Test pieces
   11.3 Procedure
   11.4 Results
12 Plybond resistance
   12.1 Principle
   12.2 Test pieces
   12.3 Test apparatus
   12.4 Test method
   12.5 Results
13 Moisture content
14 Ash content
   15.1 Test apparatus
   15.2 Procedure
   15.3 Results
16 pH of aqueous extract
   16.1 Test apparatus
   16.2 Procedure
   16.3 Results
17 Oil absorption
   17.1 Test pieces
   17.2 Procedure
   17.3 Results
18 Conducting paths
19 Presence of metallic particles
   19.1 Chemical methods
   19.2 X-ray method
20 Electric strength
   20.1 Test apparatus
   20.2 Test pieces for test in air
   20.3 Test pieces for test in oil
   20.4 Test pieces for testing after folding
   20.5 Number of tests
   20.6 Procedure
   20.7 Results
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Bibliography

Describes the test methods to be used in testing pressboard and presspaper for electrical purposes to meet the requirements prescribed in the specification sheets of Part 3.

Applies to pressboard and presspaper for electrical purposes. The series does not apply to laminated material. This part specifies the test methods to be used in testing pressboard and presspaper for electrical purposes to meet the requirements prescribed in the specification sheets of Part 3. NOTE In this standard, reference is made in several places to ISO standards accompanied by a short description of the method used. It is to be understood that this short description is meant for identification purposes only and that all details should be taken from the ISO standard itself. The main changes with respect to the previous edition are listed below: The following test methods have been cancelled: - Flexibility - Conductivity of the organic extract - Contamination of liquid dielectrics The following test methods have been rewritten: - Compressibility - Conductivity of the aqueous extract - Cohesion between plies The following test method has introduced: - Determination of metallic particles with X-ray.

Committee
GEL/15
DevelopmentNote
Supersedes BS 5937-2(1980) and 01/203394 DC. (11/2004)
DocumentType
Standard
Pages
28
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
EN 60641-2:2004 Identical
I.S. EN 60641-2:2004 Identical
DIN EN 60641-2 : 2005 Identical
NBN EN 60641-2 : 2005 Identical
SN EN 60641-2 : 1995 Identical
NF EN 60641-2 : 2005 Identical
IEC 60641-2:2004 Identical
UNE-EN 60641-2:1996 Identical

BS EN 61629-1:1997 Aramid pressboard for electrical purposes Definitions, designations and general requirements
BS EN 61629-2:1997 Aramid pressboard for electrical purposes Methods of test

IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
ISO 1974:2012 Paper — Determination of tearing resistance — Elmendorf method
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 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
IEC 60554-2:2001 Cellulosic papers for electrical purposes - Part 2: Methods of test
ISO 2144:2015 Paper, board and pulps Determination of residue (ash) on ignition at 900 degrees C
ISO 186:2002 Paper and board — Sampling to determine average quality
ISO 1924-2:2008 Paper and board — Determination of tensile properties — Part 2: Constant rate of elongation method (20 mm/min)
ISO 287:2017 Paper and board — Determination of moisture content of a lot — Oven-drying method
ISO 534:2011 Paper and board — Determination of thickness, density and specific volume
IEC 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity

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