Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 28, Problem 1R
What is the minimum size service for a one-family dwelling? ____________________
Expert Solution & Answer
To determine
Find the minimum rating of service size for a one-family dwelling.
Answer to Problem 1R
The minimum rating of service size for a one-family dwelling is
Explanation of Solution
Discussion:
The National Electrical Code committee develops NEC – the standard electrical code, and the main objective for the origin of the code is to protect and safeguard people and elements from electrical hazards. The codes that explain the rating of service disconnecting means are defined in an article NEC 230.79.
According to an article NEC 230.79 (C), for a one-family dwelling, the rating of the service disconnecting means should not be less than
Conclusion:
Thus, the minimum rating of service size for a one-family dwelling is
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Athree phase a.c. distributor AB has:
A
B
C
The distance from A to B is 500 m. The distance from A to C is 800 m.
The impedance of each section is (6+j 8) /km.
The voltage at the far end is maintained at 250 volt.
Find: sending voltage, sending current, supply power factor and
80A
60 A
total voltage drop.
0.8 lag. P.f
0.6 lead. p.f
engineering electromagnetics Subject
a
ADI ADI
b
Co
ADDS D
Fig.(2)
2-For resistive load, measure le output voltage by using oscilloscope; then sketch this
wave.
3- Measure the average values ::f V₁ and IL:
4- Repeat steps 2 & 3 but for PL load.
Chapter 28 Solutions
Electrical Wiring Residential
Ch. 28 - What is the minimum size service for a one-family...Ch. 28 - Prob. 2RCh. 28 - Prob. 3RCh. 28 - Prob. 4RCh. 28 - Prob. 5RCh. 28 - Prob. 6RCh. 28 - Prob. 7RCh. 28 - List the standard sizes of fuses and circuit...Ch. 28 - Prob. 9RCh. 28 - Using the method shown in this unit, what is the...
Ch. 28 - State four possible combinations of service...Ch. 28 - Which Code section states that all overcurrent...Ch. 28 - All electrical components have some sort of...Ch. 28 - Arc-fault damage is closely related to the value...Ch. 28 - The utility company has provided a letter to the...Ch. 28 - While working on the main panelboard that is...Ch. 28 - Repeat problem 16 for a main service panel that...Ch. 28 - NEC ______________________________ generally...Ch. 28 - Prob. 19RCh. 28 - Prob. 20RCh. 28 - Overcurrent devices must be accessible. (True)...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
What is an uninitialized variable?
Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
How is the hydrodynamic entry length defined for flow in a pipe? Is the entry length longer in laminar or turbu...
Fluid Mechanics: Fundamentals and Applications
CONCEPT QUESTIONS
15.CQ3 The ball rolls without slipping on the fixed surface as shown. What is the direction ...
Vector Mechanics for Engineers: Statics and Dynamics
This optional Google account security feature sends you a message with a code that you must enter, in addition ...
SURVEY OF OPERATING SYSTEMS
The solid steel shaft AC has a diameter of 25 mm and is supported by smooth bearings at D and E. It is coupled ...
Mechanics of Materials (10th Edition)
Convert each of the following binary representations to its equivalent base ten form: a. 101010 b. 100001 c. 10...
Computer Science: An Overview (13th Edition) (What's New in Computer Science)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Determine the type of media In a certain medium with µ = o, & = 40 H = 12ely sin(x x 10% - By) a, A/m A plane wave propagating through a medium with ɛ, = 8, μ, = 2 has E = 0.5 3sin(10°t - Bz) a, V/m. Determine In a certain medium - E = 10 cos (2 x 10't ẞx)(a, + a.) V/m If μ == 50μo, & = 2ɛ, and o = 0, In a medium, -0.05x E=16e sin (2 x 10% -2x) a₂ V/marrow_forward"How can I know if it's lossless or lossy? Is there an easy way?" A plane wave propagating through a medium with &,,-8 μr = 2 nas: E = 0.5 ej0.33z sin (10' t - ẞz) ax V/m. A plane wave in non- · (Mr=1) has: magnetic medium E. 50 sin (10st + 27 ) ay v/m =arrow_forwarda A DI AD: AD, b C ADDS AD Fig.(2) LOIT 4-Draw the waveform for the c:t. shown in fig.(2) but after replaced Di and D3 by thyristors with a 30° and a2 #90°.arrow_forward
- a b C ADDS D Fig.(2) L O 5- Draw the waveform for the cct. shown in fig.(2) but after replace the 6-diodes by 6- thyristor.arrow_forwardThe magnetic field component of an EM wave propagating through a nonmagnetic medium (po) is = Determine: H=25 sin (2 x 10't + 6x) a, mA/m (a) The direction of wave propagation. (b) The permittivity of the medium. (c) The electric field intensity.arrow_forwardIn a certain medium with μo, & = H 12e 480 y sin (x x 10% By) a, A/m find: (a) the wave period T, (b) the wavelength A, (c) the electric field E, (d) the phase difference between E and H.arrow_forward
- A plane wave propagating through a medium with ɛ, = 8, μ, 2 has E = 0.5 e-3 sin(108tẞz) a, V/m. Determine (a) B (b) The loss tangent (c) Wave impedance (d) Wave velocity (e) H field Answer: (a) 1.374 rad/m, (b) 0.5154, (c) 177.72 /13.63° 2, (d) 7.278 × 107 m/s, (e) 2.817e3sin(108 - Bz - 13.63°)a, mA/m.arrow_forwardIn a nonmagnetic medium, E = 50 cos (10% - 8x) a, + 40 sin (10't - 8x) a, V/m find the dielectric constant &, and the corresponding H.arrow_forwardA uniform plane wave in air with E = 8 cos (wt 4x - 3z) a, V/m is incident on a dielectric slab (z0) with pr = 1.0, 8, = 2.5, σ = 0. Find (a) The polarization of the wave (b) The angle of incidence (c) The reflected E field (d) The transmitted H fieldarrow_forward
- A plane wave in a nonmagnetic medium has E = 50 sin (10% + 2z) a, V/m. Find (a) The direction of wave propagation (b) λ, f, and ε, (c) H Answer: (a) along -z direction, (b) 3.142 m, 15.92 MHz, 36, (c) 0.7958 sin(10% + 2z) a A/m.arrow_forwardThe magnetic field component of a plane wave in a lossless dielectric is = (a) If μ, 1, find ε,. H = 30 sin (2 × 10 - 5x) a, mA/m (b) Calculate the wavelength and wave velocity. (c) Determine the wave impedance. (d) Determine the polarization of the wave. (e) Find the corresponding electric field component. (f) Find the displacement current density.arrow_forwardMedium characterized by, σ = 0,μ = 2μ。 and e = 56 .If H = 2 cos(wt-3y) azcalculateE, warrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK ELECTRICAL WIRING RESIDENTIALElectrical EngineeringISBN:9781337516549Author:SimmonsPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK ELECTRICAL WIRING RESIDENTIAL
Electrical Engineering
ISBN:9781337516549
Author:Simmons
Publisher:CENGAGE LEARNING - CONSIGNMENT
What is an electric furnace and how does it work?; Author: Fire & Ice Heating and Air Conditioning Inc;https://www.youtube.com/watch?v=wjAWecPGi0M;License: Standard Youtube License