Solutions Manual for Electrical Wiring Commercial 18th f f f f f f
f Edition by Phil Simmons A+ f f f f
Solution and Answer Guide f f f
SIMMONS/ODE, ELECTRICAL WIRING COMMERCIAL, 18E © 2024, 9780357767115; F F F F F F F
CHAPTER 1:COMMERCIAL BUILDING PLANS AND SPECIFICATIONS
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TABLE OF CONTENTS F F
Review .......................................................................................................................................................... 1
Note to instructor: It is recommended that students be required to respond, where
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appropriate, with answers that are complete sentences.
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REVIEW
Refer to the National Electrical Code or the working drawings when necessary. Where
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applicable, responses should be written in complete sentences.
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1. What section of a commercial building’s specification contains a list of contract
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documents?
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Answer: A list of the contract documents is contained in General Clauses and Conditions. A
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listing of the Commercial Building contract documents is presented in this chapter under the
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heading “Commercial Building Plans.” The instructor may wish to have the students check over
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this listing and compare it with the plans provided.
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2. The requirement for temporary light and power at the job site will be found in what
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portion of a commercial building’s specification?
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Answer: The Supplementary General Conditions specifies the job site requirements for
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temporary light and power. In some contracts, this electrical system becomes the responsibility of
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the general contractor; in other contracts, it is the electrical contractor’s responsibility to install
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and maintain the temporary electrical system. The instructor may wish to refer the student to NEC
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Article 590 and discuss the requirements in detail.
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3. The electrician uses the Schedule of Working Drawings for what purpose?
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Answer: The electrician uses the Schedule of Working Drawings to determine whether all of the
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drawings are at hand. The information on “the other sheets” may be very important, especially in
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coordinating with other contractors.
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4. Complete the following items by indicating the letter(s) designating the correct source(s)
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of information:
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No. Answer Item Information
4. Sections Ceiling height f Sections, Sheet A6 f f
5. Electrical Electrical receptacle f Electrical symbol schedule, Chapter f f f
symbol
f f style f 2,Figure 2–6 f
f schedule
6. Electrical Electrical outlet f Electrical layout drawings, Sheets f f f
layout
f f location f El,E2, and E3 f f
f drawing
s
7. Elevations Exterior wall finishes f f Elevations, Sheets A4 and A5 f f f f
8. Site plan f Grading elevations f Site plan, Sheet A4
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9. Electrical Panelboard schedules f Electrical layout drawings, Sheet E4 f f f f
layout
f
f drawing
s
10. Architectural Room width f Architectural floor plan, Sheets Al, f f f f
floor plan
f f A2,and A3
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11. Architectural Swing of door f f Architectural floor plan, Sheets Al, f f f f
floor plan
f f A2,and A3
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12. Sections View of interior wall
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Match the items on the left with those on the right by writing the letter
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f designation ofthe appropriate organization from the list on the right.
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13. NEC Electrical Code f National Electrical Code (NEC) f f f
14. IAEI Electrical inspectors f
International Association of f f
f ElectricalInspectors (IAEI) f
15. NFPA Fire codes f National Fire Protection Associationf f f
f (NFPA)
16. IESNA Lighting information f Illuminating Engineering f
f Society ofNorth America f f
f (IESNA)
17. UL Listing service f Underwriters Laboratories, Inc. f f
f (UL)
18. NEMA Manufacturers’ National Electrical f
f standards f ManufacturersAssociation
f (NEMA)
19. PE Seal Professional Engineer (PE) f f
Match the items on the left with those on the right by writing the letter
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f designation ofthe proper level of NEC interpretation from the list on the
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f right.
20. with Allowed by the Code f f f Shall be permitted, or Shall not
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special
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permissio
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n
21. with May be done f f Shall be permitted, or Shall not
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special berequired, NEC f
f permission
22. shall Must be done f f Shall, National Electrical Code f f f
23. shall Required by the Code f f f Shall, National Electrical Code f f f
24. never Up to the electrician f f f
Shall be permitted, or Shall not f f f f f
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25. Find NEC 250.52(A)(5) and record the first four words.
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Answer: The first four words of NEC 250.52(A)(5) are Rod and pipe electrodes. Show
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required conversion calculations for problem 26 and problem 27.
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26. Luminaire style F is four feet long. The length in SI units, as specified by the NEC, is
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Answer: The length in SI units is 1.22 m; 4 ft × 0.3048 m/ft = 1.2192 m. As will be discussed
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later, this luminaire is now called a 4 by 2 or the equivalent 1200 by 600 in metric terms. This
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question assumes that the luminaire is exactly 4 ft long.
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27. The gross area of the drugstore basement is 1395 square feet. The area in square meters is
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Answer: The area in SI units is 129.7 sq. m; 1395 sq. ft × 0.093 sq. m/sq. ft = 129.7 sq. m.
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To answer Questions 28–31, refer to the Plans included with this book. Determine the Following
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dimensions. Write the dimensions using unit names, not symbols (for example, 1 foot, not 1’), and
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indicate the source of the information.
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28. What is the inside clear distance of the interior stairway to the drugstore basement?
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Answer: The inside clear distance of the interior stairway to the Drugstore basement is 4 ft 0 in.
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(1.22 m), as scaled from Sheet A2.
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29. What is the gross square footage of each floor of the building?
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Answer: The gross area of each floor of the building is 60 ft × 43 ft = 2580 sq. ft (18.82 m × 13.1
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m = 246.5 sq. m), as taken from Sheets Al, A2, and A3.
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30. What is the distance in the drugstore from the exterior block wall to the block wall
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separating the drugstore from the bakery?
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