Overview of UL's 2006 Changes to UL508A for Short Circuit Current Ratings (07-01-2008)
This PDF file (788 KB) is based on the PowerPoint slides used during the Lunch 'n Learn Seminar held on Feb.12, 2008. The presentation includes:
- how the changes are manifested in the NEC
- definitions and methods to determine SCCR of components and panels
- how to achieve significantly higher SCCR's for panels through use of tested component combinations
- a survey of available fault levels at 300 industrial installations
- NEC & UL508A marking requirements
- information on current limiting with breakers and fuses
This presentation was rated "Excellent" (75%) or "Good" (25%) by attendees. Encore presentations were held for three other companies (one included its other locations via webcast). Comments from attendees: "Very informative", "Put this in a more complete perspective", " Great! Thank you!", "Very Good Presentation", "Excellent! Very Informative, quality info."
Contact Don Lavrenz at 262-820-9900 for a presentation to your group.