Introduction to Isolation Standards and Certifications

This video from the TI Precision Labs - Isolation training series  [1]will
answer the following questions about the relationship between industry safety
standards and isolation component specifications:

 1) What are functional, basic and reinforced isolation ratings?
 2) Who defines safety standards?
 3) What are system vs component level certifications?
 4) How are devices tested for high voltage safety?
 5) How do I know my device meets industry standards?