EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN: 9781337516549
Author: Simmons
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 30, Problem 12R
To determine
Choose the correct option from the given statement for the enclosures of transformers and GFCIs and junction boxes having one thing in common.
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In the conduit layout shown in picture attached, determine how many wires are contained in each conduit between each piece of equipment. Identify each wire with a proper terminal marking, as shown in the example, above the disconnect switch.
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Chapter 30 Solutions
EBK ELECTRICAL WIRING RESIDENTIAL
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A Type NM cable carries a branch circuit to the outside of a building, where it terminates in a metal weatherproof junction box. From this box, a short length of EMT is installed upward to another metal weatherproof junction box on which is attached a cluster of outdoor floodlights. The first box is located approximately 24 in. (600 mm) above the ground. To Meet Code, do the metal boxes and metal raceway have to be grounded? Yes _______________ No _______________ NEC _______________.
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A homeowner wants to add 12 general-purpose receptacle outlets to the electrical drawings before the house is built, what additional load, in volt-amperes will they add to the service load calculation?
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It is generally understood that grounding and bonding together all metal parts of an electrical system and the metal shield of the cable television cable to the same grounding reference point in a residence will keep both systems at the same voltage level should a surge, such as lightning, occur. Therefore, if the incoming cable that has been installed by the CATV cable company installer has the metal shield grounded to a driven ground rod, does this installation conform to the NEC? ___________
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Which of the following is a term missing from the National Electrical Code but used by manufacturers of equipment that's suitable for use as service equipment?
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True False Bonding must be accomplished around conduit connections whenever the fault current return path is suspect as well as when specifically required by the NEC
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What color are the faceplates in the bathrooms? Refer to the specifications. ________________
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_______ type receptacles must be installed on all 15- and 20-ampere branch circuits except for replacement receptacles as permitted by 406.4(D).
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