Subject 1993
Bulletin Dated: December 29, 2017
SUMMARY OF TOPICS
The following changes in requirements to the Standard for Self-Ballasted Lamps and Lamp Adapters, UL 1993, are being proposed for preliminary review and comment only:
1. For Preliminary Review Only: Proposed copper-alloy screw bases and moist ammonia air stress cracking test option for copper alloys.
2. For Preliminary Review Only: Proposed maximum conductive length of edison screw bases
3. For Preliminary Review Only: Proposed evaluation of tack-soldered electrical connections.
4. For Preliminary Review Only: Proposed drop impact test determination for severely damaged lamps.
5. For Preliminary Review Only: Proposed thickness of metal G5 and G13 lamp bases.
6. For Preliminary Review Only: Proposed lamps with movable joints.
7. For Preliminary Review Only: Proposed revision to Type A lamps - Revisions to HF test source.
8. For Preliminary Review Only: Proposed requirements for evaluating LED lamps as direct replacements for specific high intensity discharge (HID) lamps.
9. For Preliminary Review Only: Proposed Type A/B tube lamp markings.
10. For Preliminary Review Only: Proposed requirements for Linear LED lamps.
11. For Preliminary Review Only: Proposed Revision of thermal testing requirements for Self-Ballasted lamps intended for use in enclosed luminaires (partially and fully enclosed) suitable for Type IC, recessed- luminaire applications.
12. For Preliminary Review Only: Proposed Revision of Labeling and marking of physically small LED replacement lamps.
13. For Preliminary Review Only: Proposed requirements for Temperature Test - LED Lamps.
14. For Preliminary Review Only: Proposed modification to re-lamping test method to reflect risks associated with LEDs.
15. For Preliminary Review Only: Proposed addition of Supplement SE - Special Use Lamps.
16. For Preliminary Review Only: Proposed suggestion to remove "DC component" requirement for Type A lamp.
17. For Preliminary Review Only: Proposed New Test, Construction, and Marking requirements for LED Lamps with Integral Rechargeable Batteries.