Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Textbook Question
Chapter 5, Problem 19R
Is it always necessary to attach the bare equipment grounding conductor of a nonmetallic-sheathed cable to the green hexagon-shaped grounding screw on a receptacle? Explain.
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Finding crystallographic direction
Z
pt. 2
head
pt. 1:
៩
Example 2:
pt. 1 x₁ = a, y₁ = b/2, z₁ = 0
pt. 2 x2=-a, y₂ = b,
Z₂ = c
-a-a b-b/2
c-0
a
b c
tail
=> -2, 1/2, 1
Multiplying by 2 to eliminate the fraction
-4,1,2 => [412] where the overbar represents a
negative index
families of directions
Chapter 5 Solutions
Electrical Wiring Residential
Ch. 5 - The identified grounded circuit conductor must be...Ch. 5 - Explain how lighting switches are rated.Ch. 5 - Prob. 4RCh. 5 - Prob. 5RCh. 5 - To control a lighting load from one control point,...Ch. 5 - Prob. 7RCh. 5 - Complete the connections in the following...Ch. 5 - Complete the connections for the diagram....Ch. 5 - A three-way switch may be compared to a _____...Ch. 5 - Prob. 11R
Ch. 5 - Complete the connections in the following...Ch. 5 - When connecting 4-way switches, care must be taken...Ch. 5 - Show the connections for a ceiling outlet that is...Ch. 5 - Match the following switch types with the correct...Ch. 5 - When connecting single-pole, 3-way, and 4-way...Ch. 5 - What section of the Code emphasizes the fact that...Ch. 5 - If you had to install an underground 3-wire feeder...Ch. 5 - Is it always necessary to attach the bare...Ch. 5 - List the methods by which an equipment grounding...Ch. 5 - When two nonmetallic-sheathed cables (Type NM-B)...Ch. 5 - Define an equipment grounding conductor.Ch. 5 - When metal toggle switchplates are used with...Ch. 5 - Does the Code permit the ampacity of switch legs...Ch. 5 - Prob. 26RCh. 5 - Prob. 27R
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