Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 20.2, Problem 16R
To determine
Find the correct option for the permissible of receptacle to be connected to the same circuit.
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Part 2: Analysis and selection of the Wind Turbine. The team decides at install a 30 MW wind farm. The turbine that has been selected by the local contractor is an Enercon wind turbine. The specifications of all the available Enercon wind turbine is shown in the attached datasheet.
1. Decide on the required number of wind turbines needed. 2. In your own words, explain what the Betz limit for wind turbines means.
Four electricians are discussing wiring under raised floors in information technology equipment rooms. Electrician A says that wiring under the raised floor requires fire-resistant walls, floors, and ceilings between other occupancies. Electrician B says that wiring under the raised floor requires fire resistant halfway up the walls and floors between other occupancies. Electrician C says that the room must employ a disconnecting means that removes half of the power to all equipment in the room. Electrician D says that a disconnecting means isn't necessary for the room. Which of the following statements is correct?
A. Electrician B is correct.
B. Electrician D is correct.
C. Electrician A is correct.
D. Electrician C is correct.
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Electrical Wiring Residential
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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.arrow_forward2. Imagine that you're asked to install an auxiliary grounding electrode at the base of a lighting pole in aparking lot. This auxiliary grounding electrode will be connected to theA. lighting pole's electrical service equipment grounding conductor.B. electrical service's grounding electrode conductor.C. next lighting pole's auxiliary grounding electrode.D. lighting pole's neutral conductor.arrow_forwardAn isolator is used to: Select one: a. To be mounted on towers for insulation purpose b. All of the above c. to disconnect part of the system for maintenance from live circuit d. Insulate the wires to avoid electrocution and short circuits Clear my choicearrow_forward
- Can you finish the Background including a synopsis of the relevant information of this this example "electrical maintenance and repair" And please cite an article or paraphrase of author. Thank you! The electrical wiring and electrical devices in the houses that are installed may have failure so the inspection is designed to definitely perform the clear capabilities. These electrical devices are...arrow_forwardQUESTION 9 When a ground wire is connected to an interior gas piping system and the underground portion of the gas pipe into the building is plastic, which of the following is (or are) true? a A.This would be approved by code as the gas pipe is only being bonded to the electrical system. b B.This installation would be approved by code, as the gas pipe is not a grounding electrode. c C.Both A and B d D.Neither A nor Barrow_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_forward
- 1)Aluminum piping is permitted to be used as a grounding electrode only if other electrodes specified in 250.52(A) are not available for use. a) True b) False 2)The Code requires that more than one grounding electrode be installed to form a system of installed electrodes when none are present. a) True b) Falsearrow_forwardGive me about ten examples of electrical code violations in maintenance and repair. Hopefully the explanation is detailed and better if there is a picture with references.arrow_forwardThe minimum number of outdoor receptacles for a residence is __________, NEC __________. State the location. __________arrow_forward
- 2. Task: Simple Wiring Connection Layout of your House a) Make a simple wiring connection layout of your own house like the image shown below. The layout will be according to your house and the equipment used in your house. Mention the total load and current drawn by each room/spaces and the recommended size of cables to be used beside the cable lines. The following image is just an example and it is not complete. You may use standard symbols of the equipment or draw with appropriate label, i.e. fan, light, switchboard, MCB ete. b) Add images of equipment used in your house with this question.arrow_forwardThe NEC requires that a ____________ means be provided for standby power systems. In the case of portable gen sets, this might be as simple as pulling out the plug on the extension cord that is plugged into the receptacle on the gen set. For permanently installed standby power generators, this might be on the gen set and/or separately provided inside or outside of the home.arrow_forward(c) Sketch a circuit diagram of a complete power conversion circuit that would be used to connect a solar PV array to the grid. Briefly describe its operation, including mention of the types of power electronic switches that might be used along with their voltage/current ratings. Please solve this with in 1 hourarrow_forward
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