The following changes in requirements to the Standard for Surge Protective Devices, UL 1449, are being proposed:
1. Glossary Revisions
2. Addition of SPD Type Designation
3. Additional Requirements for the Grounding Wire and Grounding Path
4. Clarification for Grounding Requirement Where a Hinged Cover is Employed
5. Clarification of Switch Rating
6. Addition of Line-Neutral (L-N) Reversal During Component Failure Analysis and Limited Energy Evaluation
7. Expansion and Clarification of Test Method for Capacitors
8. Addition of Primary Circuit Communication Protectors Employed within Type 1 SPDs
9. Revisions to the Test Methods for Surge Testing, Section 37
10. Clarification of Testing in Operational Voltage Test, Section 38
11. Revisions to the Test Methods for Current Testing, Section 39
12. Addition of Optional Test Method to Decrease High Current Lab Time
13. Addition of Section 59C, Capacitor Discharge
14. Addition of Component Standard References to Appendix A (Component List of Standards) and Affected Paragraphs
15. Editorial Corrections
16. Flowchart Clarifications