Electrical Wiring: Residental - With Plans (Paperback) Package
18th Edition
ISBN: 9781305416376
Author: MULLIN
Publisher: Cengage
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Chapter 30, Problem 11R
To determine
Mention the height where the luminaires must be mounted above the swimming pool.
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In order to wire a post light, a homeowner purchased some single-conductor cable that was marked as suitable for direct burial in the ground. A separate equipment grounding conductor to the post light was not carried. Instead, the bottom of the metal post, buried 2 ft (0.6 m) into the ground, was used as a ground for the post light. The inspector “red tagged” (turned down) the installation. Who is right—the homeowner or the electrical inspector?
Explain.
If a recessed luminary without an integral junction boxes installed what extra wiring must be provided
8. Connect the Electronic VOM, set to the ammeter function on the 15mAdc range,between points A and D.9. Close switch S1. Measure current IAB.
IAB = 19.5 mAdc
10. Measure current IAD flowing through resistor R1.
IAD = 14.8 mAdcAre currents IAB and IAD entering or leaving point A? __________
Is the sum of currents IAB and IAD equal to total current IT? __________Is the current IAB entering or leaving a junction point B? __________
Chapter 30 Solutions
Electrical Wiring: Residental - With Plans (Paperback) Package
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- QUESTION 5 A duplex receptacle is installed on a 4-inch square raised metal cover and mounted on a 4-inch square metal box.If the grounding terminal of the receptacle is connected to the grounded metal box, which of the following requirements would also apply to the installation of the duplex receptacle? a It must be secured by at least two screws. b The single 6/32 screw holding it in the cover must be tight. c It must be secured directly to the 4 inch square box. d It is not permitted to be installed in raised covers.arrow_forwarda. The Code requires a minimum of two small-appliance circuits in a kitchen. Is it permitted to connect a receptacle in a dining room to one of the kitchen small-appliance circuits? _______________ What Code section applies to this situation? _______________ b. Are outdoor weatherproof receptacles permitted to be connected to a 20-ampere small-appliance circuit? _______________ c. Receptacles located above the countertops in the kitchen must be supplied by at least _______________ 20-ampere small-appliance circuits.arrow_forwardCOLUMN A COLUMN B A copper wiring containing 8 color-coded 1. conductors or 4 twisted pairs that offers greater bandwidth for local area networks. A. LEGEND 2. distribution device. A wiring pattern that connects to a central B. HOMERUN 3. Another term for an 8-pin modular jack. C. OVERCURRENT 4. A coaxial cable quad shielded with all copper center conductor used for cable TV. D. INSULATOR It is the maximum current that a conductor can 5. carry without exceeding its temperature rating. E. SHORT CIRCUIT 6. A wiring job where many cables enter a device or a junction box that is considered an unsafe practice in electrical wiring, F. CIRCUIT BREAKER 7. An electrical safety device designed to protect an electrical circuit from damage. G. ARC FLASH 8. unintended path with very low resistance. Occurs when an electrical current flows in an H. AMPACITY 9. amperage capacity of the circuit. Occurs when the current exceeds the rated I. UTP 10. A method of extending an electrical wire to the ground…arrow_forward
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