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UL 1876:4ED 2015-06-25
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The latest, up-to-date edition.
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Isolating Signal and Feedback Transformers for Use in Electronic Equipment
Hardcopy
English
25-06-2015
FOREWORD
INTRODUCTION
1. Scope
2. General
3. Glossary
CONSTRUCTION
4. Housing
5. Resistance to Corrosion
6. Mechanical Assembly
7. Impregnation
8. Leads
9. Terminal Support
10. Transformer Insulation
11. Spacings
12. Double Protection
PERFORMANCE
13. General
14. Transformer Dielectric Voltage-Withstand Test
15. Strain Relief Test
16. Insulation Resistance Test
17. Thermoplastic Bobbin Temperature Stability Test
18. Insulating Materials Equivalence Test
19. Insulating System Tests
MANUFACTURING AND PRODUCTION TEST
20. Dielectric Voltage-Withstand Test
MARKINGS
21. General
APPENDIX A
Standards for Components
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