DC Electrical Safety - Fundamentals DC Equipment | DC Systems | Data Centers
Online Class Agenda - 2 PDHs / 0.2 CEUs

- 2 PDHs | 0.2 CEUs
- 9 Video Modules
- Learn about DC electrical safety
- DC Equipment, Systems and Data Centers
- Final Quiz – Minimum Passing Score of 70% Required for Continuing Education Credit
- Take the quiz as many times as you need
- Certificate of Completion with PDH/CEU Credit
- No Time Limit
- Program does NOT expire
- Store this program in your personal library for future reference
Groups of 4 or more receive discounts of 25% off!
Groups of 10 or more receive discounts beginning at 30% off.
Corporate Licensing: Contact us about corporate licensing for large groups.
Questions? Call us at 800-874-8883 (US) or email us at info@brainfiller.com for details about group/corporate rates.
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This 2 hour On-Demand class by Jim Phillips addresses many important DC electrical safety topics for DC systems and
DC electrical equipment.
Module 1: Introduction to DC Systems
- AC vs. DC
- DC Sources and DC Equipment
- Photovoltaic
- Wind
- Rectifiers
- Battery Systems
- Inverters
- Typical DC Voltages
- Negative 48 V DC
Module 2: Codes and Standards
- References for DC Electrical Safety
- OSHA
- NFPA 70E
- NFPA 70 National Electrical Code
- IEEE 1584
- Department of Energy
- ASTM
Module 3: DC Electrical Hazards
- Thermal
- Shock Hazard
- AC vs. DC physiological response
- Arc Flash Hazard
- Chemical Hazards – Batteries
- Working Distance
- Arc Flash Boundary
- Chemical Hazard – Electrolyte from Batteries
Module 4: 50 Volts DC
- 50 V Threshold NFPA 70E and OSHA
- Electrically Safe Work Condition
- Float Voltage
- 100 Vdc – NFPA 70E Article 320
- Article 320 Energy Thresholds
Module 5: Electrical Safety – NFPA 70E
- Qualified Person
- Hazard and Risk
- Hierarchy of Risk Control
- Risk Assessment Procedure
- Shock Risk Assessment
- DC Shock Protection Boundaries
- Arc Flash Risk Assessment
- Likelihood and Severity – DC Tasks
- DC PPE Categories
- DC Tables – 2 Second Duration
- Use of Insulated Tools
Module 6: DC Systems and Components
- DC Electrical Systems
- Anatomy of a Data Center
- Rectifiers
- Inverters
- DC Power Distribution
- Battery Distribution Circuit Breaker Bay (BDCBB)
- AC Hazards Still Exist
Module 7: NFPA 70E – Batteries
- Safety Requirements Relate to Batteries
- Battery Terminology
- Series and Parallel Connections
- Battery Room/Enclosure Requirements
- Battery Monitoring
- Warning Signs
Module 8: Battery Risk Assessment
- Risk Assessment Flow Charts
- Chemical Risk Assessment
- Thermal Risk Assessment
- Shock Risk Assessment
- Arc Flash Risk Assessment
Module 9: DC Arc Flash
- DC Incident Energy Calculations Overview
- DC Incident Energy Examples
- Effect of Arc Duration
- Open Air vs. Enclosure