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UL 2097:4ED 2006-12-28
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The latest, up-to-date edition.
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Reference Standard for Double Insulation Systems for Use in Electronic Equipment
Hardcopy
English
28-12-2006
FOREWORD
PREFACE
1. Introduction
1.1 Scope
1.2 General
1.3 Glossary
1.4 General requirements
1.5 General conditions for tests
1.6 Markings
2. Fundamental construction requirements
2.1 Protection against electric shock
2.2 Insulation
2.3 SELV circuits and dead metal parts
2.4 Spacings (creepage distances and clearances)
2.5 Safety isolating transformers
3. Supply
3.1 Insulation
3.2 Power supply cords
4. Physical requirements
5. Thermal and electrical requirements
5.1 Leakage current test
5.2 Dielectric voltage-withstand tests
5.3 Overload conditioning of safety isolating
transformer insulation
Appendix A
Insulation typically required between parts of equipment
Appendix B
International electrical symbol
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