Summary of Topics s1993_6_sum.htmlSummary of Topics
This new Sixth Edition of ANSI/UL 1993 dated May 17, 2024 includes the following changes in requirements:
– Flammability rating of polymeric lamp bases– Additional instructions for Type A LED lamps– Revision to A8.8 Drop Impact Test–Alternate wattage limit for high-lumen lamps– Revisions to production line test conditions– Lamps for use in elevated ambient temperatures– Merging of duplicate rigidity after drop test methods– Protective functions during the temperature test– Wireless control circuits– LED Lamps – Current Cascade Abnormal– Edison screw base length– Correction of footnote b in Table 5.2– Corrections to various errors– Updates to ANCE references – 2.1– 4.5.1.2: Add the reference – NMX-J-198-ANCE-2015– 5.3.1: Add the publication year to the reference NMX-565/2-11-ANCE– 5.3.3: Add the reference NMX-J-565/3-ANCE-2006– Table 5.2 – Add a note; updates to footnote b and footnote c– 5.4.5: update reference to: NMX-J-024-ANCE-2018– 6.1.1, Delete all references to NMX-J-325-ANCE– 6.4.5: update reference to: NMX-J-578-ANCE-2006– B3.8 (b): add NMX-J-591/1-ANCE-2007 & NMX-J-591/2-6-ANCE-2020– C4.5.2: Add the reference NMX-J-295/2-ANCE-2010– Correction: Add reference to UL 2054, in Section 2, Reference Publications– Updates to E2 Reference Publications and E5 Markings and Instructions in Annex E for Special use lamps .