1. Determine and Design the Best ALT Fred Schenkelberg, Consultant January 23 rd thru 26 th, 2012 RAMS Session 13C

2. Selection Criteria

3. Meaningful Results

4. Selection Criteria Meaningful Results Measures

5. Threshold Unrelated Surrogate Direct Meaningful Results: Measures

6. Meaningful Results Measures Cost Selection Criteria

7. Threshold Prohibitive Budget Inexpensive Cost

8. Meaningful Results Measures Cost Precision Duration Samples Selection Criteria

9. ALT APPROACHES Consider the alternative ways to conduct the testing

10. Example Case Capacitor 24/7 operation High voltage load Outdoor environment Insulation breakdown failure mechanism Let’s consider some ALT options

11. Time Compression

12. Build a Model

13. Given a Model Peck’s Relationship

14. Step Stress

15. Degradation

16. Example Case Capacitor 24/7 operation High voltage load Outdoor environment Insulation breakdown failure mechanism 3 viable ALT options

17. Select Assume a Model ALT Selection

18. Questions?