Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 33, Problem 7R
When is a metallic raceway required for photovoltaic source circuits? ____________
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Which of the following statements about equipment grounding conductors (EGCs) is true?A. The National Electrical Code permits the EGC to also perform as a grounding electrode conductor.B. More than one EGC must be used if multiple circuits are installed in a single raceway, cable, or cable tray.C. No current should be present in the EGC during normal operation.D. EGCs are required to be decreased in size to address voltage drop.
The frames of ranges, wall-mounted ovens, counter-mounted cooking units, and clothes dryers under the conditions permitted for existing installations, ___ permitted to be connected to the grounded circuit conductor.
Select one:
a. shall not be
b. can not
c. may be
d. shall be
Question no 1:
Discuss the basic requirement to consider while selecting a suitable location for placement of the wind turbin?
Chapter 33 Solutions
Electrical Wiring Residential
Ch. 33 - Prob. 1RCh. 33 - Prob. 2RCh. 33 - Name four electrical hazards associated with...Ch. 33 - Name five components of a utility-interactive...Ch. 33 - Which conductor types are permitted to be...Ch. 33 - To size conductors and overcurrent devices for...Ch. 33 - When is a metallic raceway required for...Ch. 33 - Photovoltaic modules that also serve as an outer...Ch. 33 - Grounding electrode system requirements for a...Ch. 33 - The two methods permitted for connection of a...
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- How and where is the grounding electrode conductor attached to the water pipe?arrow_forwarda. What is the minimum power demand allowed by the Code for an electric dryer if no actual rating is available for the purpose of calculating feeder and service-entrance conductor sizing? ______________ b. What is the current draw? _____________________arrow_forwardWhat are the steps for plotting points on microstation uisng offset, station, side and elevation?arrow_forward
- Assuming that an outlet box for the entry ceiling has a fixture stud but has external cable clamps, what size box could be installed? Show calculations for both metal and nonmetallic boxes. ___________arrow_forwardWhat are Diagram,Construction, Operation, Advantages and Disadvantages of Air Circuit Breaker Please include the reference link for all parts.arrow_forwardThe minimum burial depth for a Type UF cable feeding a pole light in a residential application is ______ inches. Assume the circuit wiring is installed under a lawn, is rated 20 amperes, and is not GFCI protected.arrow_forward
- 10.a. Which of the following is a condition of the exception that allows the grounded conductor of feeders tobe used for grounding at separate buildings or structures?A. There are common electrically continuous metallic paths between the feeder source and the destination at the structure served.B. There are common electrically continuous nonmetallic paths between the equipment grounding conductor and the destinationat the structure served.C. An equipment grounding conductor isn't included with the supply circuit to the separate structure.D. Ground-fault protection of equipment is provided on the supply side of the feeder.10.b. A service disconnection means must be installed adjacent to, within sight of, and no more than_______ feet from a mobile home.A. 20B. 30C. 10D. 50arrow_forwardWhat section of the Code prohibits supporting fire alarm conductors from raceways that contain light or power conductors? NEC ______.arrow_forwardThe white wire of a cable may be used to connect to a "hot" ungrounded circuit conductor only if ?arrow_forward
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