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4. Guide to the National Electrical Code for Field Use NFPA 70

This course trains you how to look up issues in the National Electrical Code quickly. After successful completion of the course, you will be able to determine working space, dedicated space and access issues. Specific rules and definitions are explained concerning how to apply services properly, feeders and branch circuits to real world applications. Basic identification requirements of grounding, panel board, switchgear, motor, motor control, transformers and circuitry are explored in this course along with proper connections and terminations, hazardous locations and specialty applications. You will gain knowledge of the basic principles of over-current protection, grounding, bonding, and shielding. By the time you finish this course, you should fully know how to use the National Electrical Code for any application as applied to electrical hazards and operation when finished with this course.

Volume 1

Topics include:

• How the NEC is developed
• Code Interpretation and Implementation
• NEC language and terms
• Rules of NEC application
• How exceptions are applied
• Overview of NEC structure
• General definitions
• Premise wiring system

Volume 2

Topics include:

• Grounding electrode definition
• Intersystem bonding
• Grounding definitions
• Grounding and bonding of communication systems
• Definition and application of neutrals
• Grounding of wye and delta transformers
• Short circuit rating, TVSS and SPD applications
• Enclosure types and applications
• Arc-flash protection label requirements
• OCPD coordination

Volume 3

Topics include:

• Identification requirements
• Working space requirements
• Dedicated space requirements
• Clearance from live
• Grounded and ungrounded parts
• Dead-front assemblies
• Entrance and exit requirements for electrical rooms
• Access requirements to substations & control rooms
• Illumination requirements in MCC’s and electrical rooms

Volume 4

Topics include:

• General identification requirements for branch circuits, feeders, panels, disconnects, neutrals, grounded conductors
• Identification of grounded and ungrounded conductors when intermixed with different voltage sources
• Problems with sharing neutrals
• Multi-wire branch circuits
• Color code requirements for neutrals, equipment grounds, grounded conductor and grounding conductor
• Connection requirements
• General termination requirements

Volume 5

Topics include:

Bonding connection requirements and split-bolt connection for panels and disconnects. Termination requirements for disconnects and panels. General splicing requirements.

Volume 6

Topics Include:

• Basics of over-current protection
• Over-current protection for service equipment and conductors
• Overload, over-current, ground-fault, short circuit, AFCI protection, HACR, SWD and Al/Cu requirements
• Temperature applications to over-current protection devices, equipment and conductors
• Ground fault relays, interrupting fault current, RMS, over-current protection times and current
• Understanding the internal operation of a circuit breaker and fuse
• Understanding the proper application of circuit breakers and fuses
• Application of information on circuit breakers and fuses

1. Understanding Basic Electricity for Electrical Safety
2. OSHA Electrical Requirements - CFR 1910 Subpart S., Below 600 Volts
3. Guide to Electrical Safety Work Practices - NFPA 70 E
4. Guide to the National Electrical Code for Field Use - NFPA 70
5. Grounding Bonding Shielding
6. Preventive and Predictive Maintenance Standard - NFPA 70 B
7. Industrial Machines - NFPA 79
8. OSHA Electrical Requirements – CFR 1910.269 Above 600 Volts

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