Subject 508C (61800-5-1, 61800-5-2)

Bulletin Dated: April 4, 2018

SUMMARY OF TOPICS

The following topics were discussed at the meeting of the Standards Technical Panel for Power Conversion Equipment:

1. Update on current projects for the Standard for Adjustable Speed Electrical Power Drive Systems - Part 5-1: Safety Requirements - Electrical, Thermal and Energy, UL 61800-5-1

2. Update on the Standard for Adjustable Speed Electrical Power Drive Systems - Part 5-2: Safety Requirements - Functional, UL 61800-5-2

3. Update from the Drives with Power and Control Cable Assemblies Task Group

4. Update from the DC Bus Connection Task Group

5. Update from the Drive Tap Conductor Protection Task Group

6. Update from the Test Reduction Task Group

7. Update from the Servo Drive Amplifier Task Group

8. Update from the IGBT Task Group

9. Update from the Multiple Motors Task Group

10. Update from the Spacings Task Group

11. Update from the UL 61800-5-2 Task Group

12. National Electrical Code proposals

13. Discussion of the following proposal to serve as Preliminary review: Clarification of Clause DVD.2.1.3.6 and DVD.2.1.3.7

14. Discussion of the following proposal to serve as Preliminary review: Clarification of Scope Regarding DC Rated Drives

15. Discussion of the following proposal to serve as Preliminary review: Heat Cycling Test for Spring-loaded Bus Bar Joints

16. Discussion of the following proposal to serve as Preliminary review: Alternate means of supplying installation and operation manuals

17. Discussion of the following proposal to serve as Preliminary review: Editorial Correction to Section 5.2.3.6DV.1.1.4 & 5.2.3.6DV.1.3.1

18. Discussion of the following proposal to serve as Preliminary review: Editorial Correction to Section 5.2.3.6DV.1.6.2

19. Discussion of the following proposal to serve as Preliminary review: Test Configuration change in Section 5.2.3.6.2DV.2.1.1

20. New Business Item: UL Harmonization with IEC 61800-5-1 Edition 2.1