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Scope
This course is
designed to provide an overview of proper wiring practices as presented in the National Electrical Code® . The terminal
objective for the course is for the participant to develop or enhance their working knowledge of the NEC by learning how to
find and understand the information presented in the code. | | Learning Outcomes | At the conclusion of the course the participant should be
able to: - Understand the layout of the 2008 National Electrical
Code.
- Understand the relationship between the National Electrical
Code and the National Electrical Safety Code.
- Differentiate
between NEC and OSHA examination, installation and use requirements.
- Understand the proper locations for electrical equipment to provide for proper working clearances and free space
requirements.
- Determine proper methods of identification
for grounded conductors, grounding conductors, and multiwire branch circuits.
- Understand installation requirements for services.
- Understand
bonding and grounding requirements for services, feeders, branch circuits, and utilization equipment.
- Select the proper size and location of overcurrent protection for various types
of utilization equipment.
- Be knowledgeable of requirements
for temporary wiring and GFCI applications.
- Be knowledgeable
of acceptable wiring methods and materials including recent changes in acceptable industrial wiring methods and materials.
- Select the proper size of raceway, fitting, and boxes. including
wire bending space, component sizing and conductor identification.
- Size motor circuits and required components according to recent code changes.
- Understand transformer installations including various types of delta and wye connections.
- Understand acceptable wiring methods for hazardous (classified) locations.
| | Outline | The course content varies with the time permitted. One day up-date
courses provide just enough time to quickly hit the high points of the most recent code changes. Longer classes provide the
time necessary to discuss in detail various areas of the NEC with time for various types of practice problems. With over six
hundred pages of code I've never run out of either material or student questions before class had to be dismissed. Upon
request, Training Technology can provide you with check lists to assist you in your selection of NEC topics that need to be
discussed during training. - Relationships Between the National
Electrical Safety Code and the National Electrical Code
- Determining
Proper Working Clearances and Free Space Requirements
- Services,
Feeders and Branch Circuits
- Sizing
- How to determine branch circuit loads for receptacle outlets, multi-outlet assemblies,
motors resistance-type ovens, AC welders and lighting fixtures
- How
to determine ampacity and minimum size requirements for feeder conductors
- How to determine ampacity and minimum size requirements for distribution panels and services
- How to determine minimum clearances for conductors
- How to apply rules for more than one service per building
- How to determine maximum numbers of disconnecting means
- Rules
and Calculations for Overcurrent Protection
- Determining
conductor ampacities
- Tap conductor requirements
- Grounding and Bonding
- How to identify DC and AC wiring systems that require grounding
- How to compute minimum sizes for bonding jumper and grounding electrode conductors
- New requirements on structural steel and separately derived systems
- How to ground conductors for supply-side/load-side equipment
- Special grounding requirements for Data Processing and electronic equipment
- Acceptable Industrial Wiring Methods
- General
Wiring Methods
- Temporary Wiring
- GFCI Requirements
- Cable Tray
- Rigid Metal Conduit
- Liquidtight
Flexible Metal Conduit
- Boxes, Fittings, etc.
- Equipment for General Use
- Luminaires and Receptacles
- Fixed Electric Heating
Equipment for Pipelines and Vessels
- Calculate motor loads,
conductor and raceway sizing, disconnecting means and motor controller size
- Calculations for overload protection, ground-fault/short circuit protection, motor control circuit protection
- Transformers - how to calculate overcurrent protection for transformers
- Hazardous (Classified) Locations
- Location and General Requirements
- Special Precaution
- Area Classification
- Approval
for Class and Properties
- Marking
- Temperature
- How
to identify Class I, II, and III locations
- Protecting hazardous
locations from electrical ignition sources
- Class I, II, and
III wiring methods
- How to apply requirements for intrinsically
safe circuits and equipment
- How to apply requirements for
purging and pressurizing enclosures
- Class I, Zone 0, Zone
1, and Zone 2 alternate area classification methods
- Approved
Wiring Methods for Hazardous Locations
- Sealing and Drainage
- Switches, Circuit Breakers, Motor Controllers, and Fuses
- Motors and Generators
- Lighting Fixtures
- Utilization Equipment
- Flexible
Cords
- Receptacles and Attachment Plugs
- Conductor Insulation
- Signaling,
Alarm, Remote-Control, and Communications Systems
- Live Parts
- Grounding
- Surge
Protection
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