SPECIFICATION OF SOLVENTLESS POLYMERISABLE RESINOUS COMPOUNDS USED FOR ELECTRICAL INSULATION - METHODS OF TEST. TEST METHODS FOR COATING POWDERS FOR ELECTRICAL PURPOSES
International Electrotechnical Committee
FOREWORD
PREFACE
INTRODUCTION
Clause
Scope
SECTION ONE - TESTS FOR MATERIALS BEFORE CURE
1.1 Bulk density
1.2 Pourability
1.3 Panicle size distribution
1.4 Softening temperature
1.5 Gel time
1.6 Non-volatile matter content
SECTION TWO - TESTS FOR MATERIALS IN THE CURED FORM
2.1 Preparation of test specimens
2.2 Visual examination
2.3 Thickness
2.4 Porosity of coating (test for uniformity)
2.5 Scratch hardness
2.6 Cut-through resistance
2.7 Impact strength
2.8 Cupping test
2.9 Electric strength
2.10 Dissipation factor and permittivity
2.11 Volume resistivity after immersion in water
2.12 Resistance to tracking
2.13 Resistance to chemicals
2.14 Resistance to vapour of solvents
2.15 Thermal endurance
2.16 Edge coverage
2.17 Thermal shock resistance
FIGURES
Gives methods for tests for thermosetting coating powders as defined in Sub-clause 3.7 of Publication 455-1. These tests are included for material before cure and in cured form.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | SC 15C |
