IEC 60641-2 : 2.0

PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TESTS

International Electrotechnical Committee

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FOREWORD
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 Conductivity of aqueous extract
   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
Bibliography
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Abstract

Defines 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.