Summary of Topics m0508c_4_20170331_sum.htmlSubject 508C (61800-5-1, 61800-5-2)
Bulletin Dated: March 31, 2017
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 Power Conversion Equipment, UL 508C
2. 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
3. Update on the Standard for Adjustable Speed Electrical Power Drive Systems - Part 5-2: Safety Requirements - Functional, UL 61800-5-2
4. Update from the Servo Drive Amplifier Task Group
5. Update from the IGBT Task Group and discussion of the following proposal to serve as preliminary review: Use of thermistors to comply with 5.1.5DV
6. Update from the Multiple Motors Task Group and discussion of the following proposal to serve as preliminary review: CDM/BDM controlling multiple motors
7. Update from the Drives with Power and Control Cable Assemblies Task Group
8. Update from the Spacings Task Group and discussion of the following proposal to serve as preliminary review: Clarification of Spacings and Internal Wire Insulation for Rectified AC Voltages
9. Update from the DC Bus Connection Task Group
10. Update from the Drive Tap Conductor Protection Task Group
11. Update from the UL 61800-5-2 Task Group
12. Update from the Test Reduction Task Group
13. Discussion of the following proposal to serve as preliminary review: Revision to the requirements for across-the-line capacitors
14. Discussion of the following proposal to serve as preliminary review: Slash and Straight Voltage Ratings for Drives with a 3 Phase Input
15. Discussion of the following proposal to serve as preliminary review: Control Circuit Transformer Protection
16. Discussion of the following proposal to serve as preliminary review: Signal Words
17. Discussion of the following proposal to serve as preliminary review: Revision to the conductor temperature limit during the Temperature Test, Section 40
18. Discussion of the following proposal to serve as preliminary review: Component Analysis for Breakdown of Components Test
19. Discussion of the following proposal to serve as preliminary review: Dust test requirement for equipment rated other than Type 1, 2, 3R, and 3RX
20. Discussion of the following proposal to serve as preliminary review: Clarification of deflection test prior to clearance measurement
21. New business: UL 484, UL 1998, and IEC 60335
22. New business: UL 1066 Requirements