Description:

This is an introductory course on the use and interpretation of the current National Electrical Code. Students should develop a working knowledge of the code that will permit them to apply it to everyday applications. Upon successful completion of this course, the student should be able to use the code to design service entrances, feeders and branch circuits and discern between wiring methods used in difference occupancies. 4 hrs. lecture /wk.

Supplies: Refer to the instructor's course syllabus for details about any supplies that may be required.

Prerequisites: NONE

Textbook(s): For information see - http://bookstore.jccc.net

Course Fees: NONE

Course Objectives:

Upon successful completion of this course the student should be able to:

1. Explain the terms that are important for the proper application of the Code.
2. Describe basic safety requirements for electrical installations.
3. Generalize the use and identification of grounded conductors.
4. Define the rules that apply to branch circuits.
5. Describe the rules that apply to feeder circuits.
6. Use the rules for outside branch circuit, feeder and service calculations.
7. Apply the rules for overcurrent protection, grounding and bonding.
8. Discern between the different types of wiring methods and the rules for temporary wiring.
9. Describe the rules for the use of conductors in flat conductor cable, electrical nonmetallic tubing (ENT), and armor cable (type AC).
10. Apply the rules for metal-clad cable (type MC), nonmetallic sheath cable (types NM and NMC), service entrance cable (type SE and USE) and underground feeder and branch circuit cable (type UF).
11. Explain the use of intermediate metal conduit, rigid metal conduit, rigid nonmetallic conduit and electrical metallic tubing.
12. Describe the use of flexible metal conduit, liquidtight flexible metal conduit, liquidtight flexible nonmetallic conduit and surface raceways.
13. Describe the use of multi-outlet assemblies and metallic or nonmetallic wireways.
14. Describe the use of outlet, device, pull and junction boxes, conduit bodies and fittings.
15. Apply the rules for the use of cabinets, cutout boxes, auxiliary gutters, switches, switchboards and panelboards.
16. Describe the use of flexible cords, flexible cables, fixture wires, lighting fixtures, lampholders, lamps and receptacles.
17. Summarize the use of appliances, fixed electric space heating equipment, motors, motor circuits and controllers.
18. Apply the NEC rules for air conditioning, refrigeration equipment and transformer overcurrent protection

Content Outline & Competencies:

I. General terms of the National Electrical Code
   A. Explain the history of NEC.
   B. Differentiate code changes from previous codes.
   C. Explain terms and layout of NEC.
   D. Use the NEC to find information.
   E. Explain what professionals use the NEC.
   F. Define the purpose of the NEC.
   G. Distinguish different interpretations of the NEC.
   H. Explain code arrangement and enforcement.
   I. Distinguish between mandatory and explanatory material.
   J. Describe safety and wiring planning.

II. Chapter 1 General
   A. Interpret definitions of the NEC using Article 100.
   B. Summarize the NEC requirements for electrical installations.
      1. Explain the approval of equipment by the authority having
jurisdiction.
      2. Describe the identification, installation and use of equipment.
      3. Explain nominal voltages and conductor methods.
      4. Distinguish different conductor insulation and wiring methods.
      5. Explain interrupting rating.
      6. Explain deteriorating agents and mechanical execution of work.
      7. Describe the mounting of cooling equipment.
      8. Explain electrical conductor termination.
      9. Define access and working space.
      10. Define guarding and manufacturer's markings.

III. Wiring and Protection
   A. Generalize the use of Article 200 for identification of grounded
conductors.
      1. Explain the connection to grounded system.
      2. Describe the use of the grounded conductor.
      3. Explain the use of white or gray conductors.
      4. Describe terminal identification and polarity.
   B. Article 210, Branch Circuits
      1. Explain scope and definitions.
      2. Describe branch circuit classification.
      3. Explain multiwire branch circuits.
      4. Explain color code for branch circuits.
      5. Explain voltage limitations and use of receptacles.
      6. Describe GFCI receptacle protection.
      7. Explain conductor ampacity and overcurrent protection.
      8. Calculate outlet device rating and maximum branch circuit Loads.
      9. Calculate permissible loads and multioutlet branch circuit.
      10. Justify the number of dwelling unit receptacle outlets.
      11. Explain the requirements of rooftop, attic and crawl space
receptacles.
      12. Calculate lighting outlet requirements.
   C. Article 215,  Feeder Conductors
      1. Describe the scope and minimum rating and size of feeders.
      2. Calculate overcurrent protection.
      3. Describe feeder conductor grounding means.
      4. Identify feeder high leg.
      5. Explain ground-fault protection of equipment.
   D. Article 220, Branch Circuit, Feeder and Service Demands
      1. Explain the scope and definitions of section 220.
      2. Explain voltages and computations of loads.
      3. Calculate branch circuit requirements.
      4. Calculate general lighting demands.
      5. Describe commercial receptacle demand factors.
      6. Describe motors and fixed electric space heating requirements.
      7. Complete a dwelling unit small appliance and laundry load.
      8. Calculate a dwelling unit appliance demand.
      9. Calculate a dwelling unit electric clothes dryer demand.
      10. Calculate a dwelling unit electric range demand.
      11. Explain a commercial unit electric range demand.
      12. Explain a non-coincident load.
      13. Size a feeder neutral load.
      14. Verify an optional calculation for a dwelling unit.
   E. Article 225, Outside Branch Circuits and Feeders
      1. Explain the scope and definitions of section 225.
      2. Calculate the loads of an outside branch circuit.
      3. Describe conductor covering and minimum size conductors.
      4. Explain the use of lighting equipment installed outdoors.
      5. Interpret the requirements for more than one building or other
structure.
      6. Explain the wiring requirements on buildings.
      7. Identify the point of attachment and clearances from a building.
      8. Describe mechanical protection.
      9. Explain raintight raceways and arranged to drain.
      10. Describe underground circuits and use of trees for support.
   F. Article 230, Service Installations
      1. Explain the scope and definitions of section 230.
      2. Explain the rules for sizing a service.
      3. Explain the number of services allowed on a building.
      4. Identify the rules for single building or structure not to be
supplied through another building.
      5. Identify conductors considered outside a building.
      6. Explain service conductors separate from other conductors.
      7. Describe raceway seals and clearance from building openings.
      8. Calculate overhead conductors size and rating.
      9. Identify clearance requirements and points of attachment.
      10. Identify the use of service masts as supports for the point of
attachment.
      11. Describe underground service size and rating.
   G. Overcurrent Protection
      1. Explain the scope of Article 240
      2. Locate the section on standard ampere ratings.
      3. Describe supplementary overcurrent protection.
      4. Explain ground fault protection of equipment.
      5. Describe the rules for underground conductors.
      6. Differentiate between damp and wet location.
      7. List the rules for Edison base fuses.
      8. List the rules for type S fuses.
      9. Describe the use of a circuit breaker.
      10. Define series rated equipment.
   H. Grounding and Bonding
      1. Explain the purpose of grounding.
      2. Differentiate between grounding and bonding.
      3. Define the term objectionable currents.
      4. Explain the rules for service system grounding.
      5. Define separately derived system.
      6. Explain the term made and other electrodes.
      7. List the rules for supplemental grounding electrodes.
      8. Define maximum resistance to ground.
      9. List the requirements for grounding and bonding on the line side
of the service.
      10. List the requirements for grounding and bonding on the load side
of the service.
      11. Define hazardous locations.
      12. Describe equipment bonding jumpers.
      13. List the rules for bonding of piping and building steel.
      14. Define a lightning protection system.
      15. Describe grounding of ranges and clothes dryers.
      16. Explain the rules for bonding receptacles and boxes.

IV. Wiring Methods and Materials
   A. Article 300, Wiring Methods
      1. Define voltage and temperature limitations.
      2. Describe the rules for underground installations.
      3. List the rules for securing and supporting.
      4. Describe the danger of multiwire branch circuits.
      5. Explain length of free conductors.
      6. Calculate the number and size of conductors allowed in a
raceway.
      7. Explain Induced currents in metal parts.
   B. Article 527, Temporary Wiring
      1. Explain time constraints.
      2. List the rules for ground-fault protection of personnel.
   C. Article 310, Conductors for General Wiring
      1. Differentiate between stranded and solid conductors.
      2. Define the rules for conductors in parallel.
      3. Explain insulation temperature limitation.
      4. Calculate conductor ampacity using temperature and bundling
adjustment factors.
   D. Surface Raceways
      1. Define flat conductor cable (FCC).
      2. List the uses and limitations of FCC.
      3. Describe the branch circuit ratings of FCC.
      4. Define electrical nonmetallic tubing (ENT).
      5. Describe the uses and limitations of type AC cable, MC cable, NM
cable, SE and USE cable, UF cable.
      6. List the installation requirements for intermediate metal conduit
and rigid metal conduit, rigid nonmetallic conduit, and electrical metallic
tubing.
      7. Describe the use of flexible metal conduit, liquidtight flexible
metal conduit and liquidtight nonmetallic flexible conduit.
      8. Describe the use of a multi-outlet assembly.
      9. Define wireway.
   E. Outlet, Device, Pull and Junction Boxes.
      1. Differentiate between nonmetallic and metal boxes.
      2. Define classified location for box installation.
      3. Calculate the number of conductors allowed in a box.
      4. Size a junction box.
      5. Calculate the size of a pull box when making an angle pull and a
straight pull.
      6. Explain auxiliary gutters.
   F. Switchboards and Panelboards
      1. Define working clearance.
      2. Distinguish between a lighting panelboard and appliance branch
circuit panelboard.
      3. Describe overcurrent protection of a panelboard.
      4. Explain grounding of panelboards.

V. Article 400, Equipment
   A. Flexible cords and Fixture wire
      1. Describe types of flexible cords.
      2. Define fixture wire.
      3. Identify allowable ampacities of fixture wire.
      4. List the rules for overcurrent protection.
   B. Light Fixtures, Lamps and Receptacles
      1. Describe specified fixture locations.
      2. Explain fixture supports.
      3. Describe a receptacle installation.
      4. Explain the protection of recessed fixtures.
      5. Describe electric discharge lighting.
   C. Appliances
      1. Identify the branch circuit requirements for an appliance.
      2. Describe overcurrent protection.
      3. Explain disconnecting means.
      4. Describe the rules for baseboard heaters.
   D. Motors, Motor Circuits and Controllers
      1. Size a conductor for a motor.
      2. Size an overload for a motor.
      3. Identify a motor overload.
      4. Calculate the size of a branch circuit short-circuit and ground
fault protective device.
      5. Size a feeder conductor for a group of motors.
      6. Calculate the overcurrent protection for the feeder.
      7. Explain disconnecting means.
      8. Describe locked rotor current.
      9. Distinguish between FLC and FLA.
   E. Article 450, Transformers
      1. List the rules for overcurrent protection on a transformer.
      2. Explain ventilation requirements.
      3. Size the conductors for the primary side of a transformer.
      4. Size the conductors for the secondary side of a transformer.

Methods of Evaluation of Competencies:

Evaluation of student mastery of course competencies will be accomplished using the following methods:

Chapter Test         40% of grade
Homework             30% of grade
Class Participation  10% of grade
Final Exam           20% of grade
                     100%

Caveats: NONE

Disabilities:

If you are a student with a disability, and if you will be requesting accommodations, it is your responsibility to contact Access Services. Access Services will recommend any appropriate accommodations to your professor and his/her director. The professor and director will identify for you which accommodations will be arranged.

JCCC provides a range of services to allow persons with disabilities to participate in educational programs and activities. If you desire support services, contact the office of Access Services for Students With Disabilities (913) 469-8500, ext. 3521 or TDD (913) 469-3885. The Access Services office is located in the Success Center on the second floor of the Student Center.