ELTE 205 - Industrial Electrical Wiring

JOHNSON COUNTY COMMUNITY COLLEGE
BUSINESS AND TECHNOLOGY DIVISION
ELECTRICAL TECHNOLOGY
COURSE OUTLINE

 

Title: Industrial Electrical Wiring Effective Term: Spring 2005
Number: ELTE 205 Credit Hours: 4 Contact Hours: 6
Course Type: Career Lecture Hours: 3 Lab Hours: 3

Description:

This advanced course covers industrial wiring methods. Upon successful completion of this course, the student should be able to read industrial blueprints and apply the current National Electrical Code to industrial wiring systems. The student will gain working knowledge and hands-on experience with industrial wiring techniques. The student will be required to provide ANSI Z87 safety glasses and may be expected to provide other basic hand tools and/or equipment. 3 hrs. lecture, 3 hrs. lab/wk.

Associated Costs: These are additional (out-of-pocket) expense considerations that students should expect in addition to the course tuition, fees, and textbooks. $125 to $300.

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

Prerequisite: ELTE 122 National Electrical Code I
or
ELTE 125 Residential Wiring Methods
or
ELTE 200 Commercial Wiring Methods

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. Read site plans and select materials for underground wiring.
  2. Describe the components of a unit substation, the use of high voltage fuses, proper ground connections and making tap adjustments.
  3. Use various types of busways and busway components.
  4. Describe methods to determine the number and types of panelboards used in industrial applications.
  5. Describe the construction and the location of panelboards, how to supply power to them and adjust circuit breaker magnetic trips.
  6. Describe the installation of a three phase trolley busway, lighting trolley busway and strain relief cord drops.
  7. Calculate wire sizing, describe the different types of wire insulation, the use of correction factors, and the use of a Megger for testing insulation.
  8. Install a fire alarm system.
  9. Layout the motors, controllers and branch circuits used in an industrial building.
  10. Compute ampere rating, conductor size, overload size and breaker size for single and multi motor installations.
  11. Describe the use and propose of precipitation units.
  12. Define the concept of power factor and power factor correction.
  13. Define Arc-Flash and explain the NFPA guidelines for the use of Arc- Flash personal protection equipment.
  14. Define the use of circuit breakers, fuses and ground fault devices to protect the electrical system.
  15. Describe the requirements to protect a building from lightning.
  16. Apply lighting principles for use in industrial applications.
  17. Define the major components and operation of programmable logic controllers.
  18. Define hazardous locations and the use of electrical components used in different hazardous locations.
  19. Select and use safe work practices for each activity.

Content Outline & Competencies:

I. Reading plans and sitework plans.
   A. Explain construction plans.
   B. Identify plan symbols.
   C. Define sitework.
   D. Interpret the site plan.
   E. Demonstrate appropriate safety practices.

II. The Unit Substation
   A. Describe the high-voltage section.
   B. Explain the transformer section.
   C. Locate the low-voltage section.
   D. Explain the high-voltage metering equipment.

III. Feeder Bus System
   A. Install a feeder duct.
   B. Explain circuit breaker cubicles.
   C. Install a plug-in busway.
   D. Explain the use of bus plugs.

IV. Panelboards
   A. Describe a 600 volt panelboard.
   B. Calculate a branch-circuit protective device for a given load.
   C. Explain the need for a panelboard protective device.
   D. Differentiate between a power panelboard and a lighting panelboard.

V. Trolley Busways 
   A. Describe a three-phase trolley busway.
   B. Identify the trolley busway runs on the blueprint.
   C. Describe lighting in the manufacturing area.
   D. Describe lighting in the boiler room.

VI. Using Wiring Tables and Determining Conductor Sizes
   A. Calculate a conductor size.
   B. Describe insulation types.
   C. Explain correction factors.
   D. Calculate the ampacity of a conductor when more than three
conductors are in a raceway.
   E. Explain the use of underground conductors.
   F. Calculate a conductor size.
   G. Calculate voltage drop on long wire lengths.
   H. Compute the resistance of a conductor.
   I. Explain the rules for parallel conductors.
   J. Perform a resistance and voltage test on a wire installation.

VII. Signaling Systems
   A. Define the use of a master clock.
   B. Explain programmable system.
   C. Describe a paging system.
   D. List the components of a fire alarm system.
   E. Describe the function of a fire alarm components.

VIII. Motor and Controllers
   A. Describe the rules for using machines and their motors.
   B. Identify three types of three-phase motors.
   C. Describe the operation of a single-speed squirrel-cage induction
motor.
   D. Determine the direction of rotation for three-phase motors.
   E. Wire a dual-voltage three-phase motors.
   F. Wire a dual-voltage single-phase motors.
   G. Determine the direction of rotation for single-phase motors.
   H. Identify the terminals for a DC motor.
   I. Determine the direction of rotation on a DC motor.
   J. Explain DC power supplies.

IX. Motor Installation
   A. Identify the motor tables in Article 430 of the NEC.
   B. Find the FLC for a direct-current motor.
   C. Find the FLC for a single-phase AC motor.
   D. Explain the operation of a two-phase motor.
   E. Wire a three-phase magnetic motor starter.
   F. Compute the conductor size for a single motor.
   G. Size the overload for a three-phase motor.
   H. Explain locked rotor current.
   I. Select short-circuit protection for a three-phase motor.
   J. Calculate the feeder size for multiple motors.

X. Special Equipment
   A. Explain the purpose of a precipitation unit.
   B. Describe a fan assembly.
   C. Calculate the loading on air conditioning circuits.
   D. Calculate the power factor for a three-phase motor.
   E. Describe the function of synchronous condensers.
   F. Identify the tie-in on an air conditioning unit.
   G. Explain correcting power factor with capacitors.
   H. Explain the term power factor.
   I. Explain how to install a capacitor to a motor circuit.
   J. Test a capacitor.

XI. Arc-Flash Protection
   A. Define an arc-flash hazard
   B. Explain the different types of barriers used in arc-flash
protection
   C. Describe the different categories for arc-flash PPE

XII. System Protection
   A. Describe system protection.
   B. Describe three types of circuit breakers.
   C. Graph a circuit breaker time-current characteristic.
   D. Graph a fuse time-current characteristic.
   E. Explain a ground-fault protector time-current characteristics
chart.
   F. Describe non series rated coordination of an electrical system.

XIII. Lightning Protection
   A. Explain the basic atomic structure of elements.
   B. Explain how lightning is generated.
   C. Define the components of building protection.
   
XIV. Site Lighting
   A. Describe the lamp selection from the blueprint.
   B. Describe the illuminance selections.
   C. Define power limitation.
   D. Describe luminaire placement for the interior and exterior of a
building.
   E. List the components of an electrical installation.

XV. Hazardous Locations
   A. Explain who has authority for equipment approval.
   B. Describe intrinsically safe circuits and equipment.
   C. Explain the selection process for equipment.
   D. Explain the NEC requirements for seals.
   E. Describe a Division I, Class I circuit breaker panel.
   F. Describe a Division I, Class II lighting fixture.
   G. Explain the installation of explosion proof lighting fixtures.
   H. Describe explosion proof motor controls.
   I. Identify the NEC requirements for flexible cords and receptacles in
hazardous locations.
   J. List three types of hazardous areas.
   K. Describe the installation and maintenance of explosion-proof
equipment.

Methods of Evaluation of Competencies:

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

Chapter Tests                          30% of grade
Quizzes/Homework/Class Participation   25% of grade
Lab Assignments                        25% of grade
Final Exam                             20% of grade
TOTAL                                 100%

90% +		= A
80 - 89 %	= B
70 - 79 %	= C
60 - 69 % 	= D
Below 60 %	= F

Caveats:

  1. Safety Glasses: Safety glasses with side shields are required to be worn during lab activities associated with this course. This requirement complies with accepted eye protection practices and Kansas State Law (K.S.A. 72-5207). Safety glasses must meet American National Standards Institute Z87.1 specifications. Safety glasses brought to lab and worn will be part of the lab grade. Failure to bring safety glasses to lab will result in the students being dismissed from class until they have safety glasses.
  2. Note: Most prescription eyewear does not meet ANSI Z87.1. Students who wear prescription glasses must: 1) provide evidence that existing eyewear meets ANSI Z87.1, or 2) wear cover goggles (if allowable), or 3) purchase and wear ANSI Z87.1 prescription eyewear.

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.