ELPT 1429 RESIDENTIAL WIRING

Transcription

1 SYLLABUS ELPT 1429 RESIDENTIAL WIRING INDUSTRIAL AND COMMERCIAL ELECTRICITY BRAZOSPORT COLLEGE LAKE JACKSON TEXAS PREPARED BY: Larry Grable DATE: September 13, 2005 INSTRUCTOR RECOMMENDED BY: RECOMMENDED BY: DATE: DIVISION CHAIRMAN DATE: DEAN The Brazosport College District shall not discriminate against, or exclude from participation in any benefits or activities either on the staff or in the student body, any person on the grounds of sex, race, color, religion, national origin, age or handicap. 1

2 Brazosport College 500 College Dr. Lake Jackson, Texas ELPT 1329 RESIDENTIAL WIRING COURSE DESCRIPTION: Instruction in wiring methods used for single family, two family, and multi-family dwellings. COURSE LEARNING OBJECTIVES: The student will compute the circuit sizes needed for the installation of branch circuits, feeders, and service entrance conductors; explain the proper installation of wiring devices according to electrical codes; demonstrate grounding methods; install ground fault circuits; and identify residential wiring methods. TEXT AND REFERENCES Contren Learning Series, Electrical Level One Published: 1992, Revised: 2005 National Electric Code, 2005 published by National Fire Protection Association COURSE GOALS The following list of course goals will be addressed in the course. These goals are directly related to the performance objectives (Addendum A). (* designates a CRUCIAL goal) 1. Explain the purpose and history of the National Electrical Code (NEC ). 2. Describe the layout of the NEC. 3. Explain how to navigate the NEC. 4. Describe the purpose of the National Electrical Manufacturers' Association (NEMA) and the National Fire Protection Association (NFPA). 5. Explain the role of testing laboratories. 2

3 6. Describe various types of cable trays and raceways. 7. Identify and select various types and sizes of raceways. 8. Identify and select various types and sizes of cable trays. 9. Identify and select various types of raceway fittings. 10. Identify various methods used to install raceways. 11. Demonstrate knowledge of NEC raceway requirements. 12. Describe procedures for installing raceways and boxes on masonry surfaces,concrete surfaces and in a metal stud environment. 13. Describe procedures for installing raceways and boxes in a wood frame environment and drywall surfaces. 14. Recognize safety precautions that must be followed when working with boxes and raceways. 15. Explain the various sizes and gauges of wire in accordance with American Wire Gauge standards. 16. Identify insulation and jacket types according to conditions and applications. 17. Describe voltage ratings of conductors and cables. 18. Read and identify markings on conductors and cables. 19. Use the tables in the NEC to determine the ampacity of a conductor. 20. State the purpose of stranded wire. 21. State the purpose of compressed conductors. 22. Describe the different materials from which conductors are made. 23. Describe the different types of conductor insulation. 24. Describe the color coding of insulation. 25. Describe instrumentation control wiring. 26. Describe the equipment required for pulling wire through conduit. 27. Describe the procedure for pulling wire through conduit. 28. Install conductors in conduit. 29. Pull conductors in a conduit system. 30. Explain the basic layout of a blueprint. 31. Describe the information included in the title block of a blueprint. 32. Identify the types of lines used on blueprints. 33. Identify common symbols used on blueprints. 34. Understand the use of architect's and engineer's scales. 35. Interpret electrical drawings, including site plans, floor plans, and detail drawings. 36. Read equipment schedules found on electrical blueprints. 37. Describe the type of information included in electrical specifications. 38. Identify and state the functions and ratings of single-pole, double-pole, three-way, four-way, dimmer, special, and safety switches. 39. Explain NEMA classifications as they relate to switches and enclosures. 40. Explain the NEC requirements concerning wiring devices. 41. Identify and state the functions and ratings of straight blade, twist lock, and pin and sleeve receptacles. 42. Identify and define receptacle terminals and disconnects. 3

4 43. Identify and define ground fault circuit interrupters. 44. Explain the box mounting requirements in the NEC. 45. Use a wire stripper to strip insulation from a wire. 46. Use a solderless connector to splice wires together. 47. Identify and state the functions of limit switches and relays. 48. Identify and state the function of switchgear. 49. Describe how to determine electric service requirements for dwellings. 50. Explain the grounding requirements of a residential electric service. 51. Calculate and select service-entrance equipment. 52. Select the proper wiring methods for various types of residences. 53. Explain the role of the NEC in residential wiring. 54. Compute branch circuit loads and explain their installation requirements. 55. Explain the types and purposes of equipment grounding conductors. 56. Explain the purpose of ground fault circuit interrupters and tell where they must be installed. 57. Size outlet boxes and select the proper type for different wiring methods. 58. Describe rules for installing electric space heating and HVAC equipment. 59. Describe the installation rules for electrical systems around swimming pools, spas, and hot tubs. 60. Explain how wiring devices are selected and installed. 61. Describe the installation and control of lighting fixtures. STUDENT CONTRIBUTIONS Each student will spend at least 4 hours per week preparing for class. The student will have an opportunity to evaluate the instructor. COURSE EVALUATION Student grades will be assigned according to the following criteria: DRAWINGS 20% UNIT EXAMS 60% FINAL EXAM 20% Grades of a through f will be assigned according to college policy. COURSE SCHEDULE The class meets for 2 lecture hours and 2 lab hours per week. SCANS Competencies: 4

5 The Secretary's Commission on Achieving Necessary Skills (SCANS) identified competencies in the area of Resources, Interpersonal, Information, Systems, and Technology; and foundation skills in the area of Basic Skills, Thinking Skills, and Personal Qualities. This course is part of a program in which each of these competencies and skills in this course, see Addendum B. ADDENDUM A PERFORMANCE OBJECTIVES Under the supervision of the instructor, the trainee should be able to do the following: 1. Use NEC Article 90 to determine the scope of the NEC. State what is covered by the NEC and what is not. 2. Find the definition of the term feeder in the NEC. 3. Look up the NEC specifications that you would need to follow if you were installing an outlet near a swimming pool. 4. Find the minimum wire bending space required if two No. 1/0 AWG conductors were to be installed in a junction box or cabinet. 5. Identify fittings, boxes, and types of raceways. Reference the appropriate NEC section(s) for these items. 6. Make a conduit-to-box connection. 7. Perform a manual single cable pull: Select the proper pulling rope for the pull. Attach the pulling rope to the cable. Attach the pulling rope to the puller. Pull the cable through the conduit. 8. Perform the feed: Make a pulling head attachment. Apply lubricant to the cable as it is being pulled. Seal the end of the cable after the pull is complete. 9. Using Performance Profile Sheet 2, make a material takeoff of the lighting fixtures specified in Performance Profile Sheet 3. The takeoff requires that all lighting fixtures be counted, and where applicable, the total number of lamps for each fixture type must be calculated. 10. Draw single-pole, three-way, and four-way switches as they are connected in typical lighting circuits. 11. Based on a given set of environmental conditions, select the correct NEMA enclosure for use with a motor controller. 12. Use a wire stripper to safely remove insulation from a wire. 5

6 13. Use a solderless connector to splice two wires together. 14. For a residential dwelling of a given seize, and equipped with a given list of major appliances, demonstrate or explain how to: Compute the lighting, small appliance, and laundry loads. Compute the loads for large appliances. Determine the number of branch circuits required. Size and select the service-entrance equipment (conductors, panelboard, and protective devices). 15. Using an unlabeled diagram of a panelboard (Performance Profile Sheet 2), label the lettered components. 16. Select the proper type and size outlet box needed for a given set of wring conditions. 6