Area Electrical Classification For Class I Locations

8 hours

This course provides training for personnel on the principles of area electrical classification for Class I locations (gases and vapors). It reviews the basic principles involved and explains the effect of ventilation, gas detection, doors, and numerous other common issues giving practical guidance. It is intended for both new and experienced personnel.

  1. Introduction
  2. Overall Definitions
  3. Class I Locations
  4. Code Examples
  5. Mitigating Conditions
  6. Division 1 vs. Division 2
  7. Group Determination
  8. T-Ratings
  9. IEC Zone Definitions
  10. Classes vs. Zones
  11. Class Examples
  12. Guidance Documents
    a. OSHA
    b. NFPA-497
    c. API-520
    d. IEC
  13. Classification Procedure
  14. Openings
  15. Ventilation
  16. Classification Probabilities
  17. References
  18. Open Q&A