DAY ONE
MODULE 1: INTRODUCTION TO NFPA 79
• Machine history
• The need for training and developed standards
• NFPA 79-1 and Article 670
• Major changes in 2021
MODULE 2: MODERN MACHINE TOOL ELECTRICAL EQUIPMENT
• NFPA 79 compared to NFPA 70, 70B and NEC
• Evolution of machinery and NFPA 79
MODULE 3: DEFINITIONS
• NFPA official definitions
• Determination of ordinarily accepted meaning
• Referencing terms
MODULE 4: GENERAL REQUIREMENTS AND OPERATING CONDITIONS
• Electrical supply voltage
• Continuous allowed variation
• Limits for temperature, humidity, and altitude
MODULE 5: DISCONNECTING MEANS
• Machine supply circuit conductor and termination requirements
• Machine upply circuit disconnecting device requirements
• Handle requirements
MODULE 6: PROTECTION FROM ELECTRICAL HAZARDS
• Basic Protection
• Fault Protection
• PELV control panels
• Residual voltage
MODULE 7: PROTECTION OF EQUIPMENT AND GROUNDING
• Overcurrent protection of control devices and equipment
• Fuse and wire sizing
• Equipment grounding
MODULE 8: CONTROL CIRCUITS AND CONTROL FUNCTIONS, OPERATOR INTERFACE AND CONTROL DEVICES
• Control circuit and control function requirements
• Operating device arrangement and color
• Control panel arrangement
DAY TWO
MODULE 9: CONTROL EQUIPMENT LOCATION, MOUNTING AND ENCLOSURES
• Enclosure construction compliance
• Subpanel mounting
• Cabinet working space depths and prohibitions
MODULE 10: CONDUCTORS, CABLES, AND FLEXIBLE CORDS
• Sizing
• Correction factors
• Protection
MODULE 11: WIRING PRACTICES
• Color codes
• Material and sizing of rigid metal conduit
MODULE 12: ELECTRIC MOTORS
• Motor Installation
• Motor Protection
MODULE 13: LIGHTING AND ACCESSORIES
• Accessory requirements
• Lighting installation and protection
MODULE 14: MARKING AND SAFETY SIGNS
• Required Marking
• Safety Sign Placement
MODULE 15: TECHNICAL DOCUMENTATION
• Documentation Types
• Required Documentation
MODULE 16: TESTING AND VERIFICATION
• Types of testing
• Testing requirements
MODULE 17: SERVO DRIVES AND MOTORS
• Protection for Servo Drives and Motors
MODULE 18: QUESTIONS, REVIEW & ANSWERS