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.
- Introduction
- Overall Definitions
- Class I Locations
- Code Examples
- Mitigating Conditions
- Division 1 vs. Division 2
- Group Determination
- T-Ratings
- IEC Zone Definitions
- Classes vs. Zones
- Class Examples
- Guidance Documents
a. OSHA
b. NFPA-497
c. API-520
d. IEC - Classification Procedure
- Openings
- Ventilation
- Classification Probabilities
- References
- Open Q&A
