Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
Refer to the National Electrical Code or the working drawings when necessary. Where applicable, responses should be written in complete sentences. Complete the following table using the following circuits: 1. Eleven 120-volt duplex receptacles for general use. Receptacle loads are considered to be noncontinuous and are not subject to the 80% load limitation as applied for con- tinuous loads.

Refer to the National Electrical Code or the working drawings when necessary. Where applicable, responses should be written in complete sentences. Complete the following table using the following circuits: 1. Eleven 120-volt duplex receptacles for general use. Receptacle loads are considered to be noncontinuous and are not subject to the 80% load limitation as applied for con- tinuous loads.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
See similar textbooks
icon
Related questions
Question
100%
8:33 Refer to the National Electrical Code or the working drawings when necessary. Where applicable, responses should be written in complete sentences. Complete the following table using the following circuits: 1. Eleven 120-volt duplex receptacles for general use. Receptacle loads are considered to be noncontinuous and are not subject to the 80% load limitation as applied for con- tinuous loads, 2. Ten 120-volt fluorescent luminaires, rated at 150 volt-amperes each. 3. Eight 120-volt incandescent luminaires, rated at 200 watts each. 4. One 240-volt exhaust fan, rated at 5000 watts. 5. One 120/240-volt single-phase, 3-wire feeder, 40-kVA continuous load, originating in a room with an ambient temperature of 100°F (38°C). Row Circuit Number 1 3. 1 Calculated Load in Volt-Amperes Calculated-Load in Amperes 3 Load Type 4 Load Modifier 5 OCPD Selection Amperes 6 OCPD Ampere Rating 7. Minimum Conductor Ampacity 8. Minimum Conductor Size Type THHN/THWN 9. Ambient Temperature 10 Temperature Correction Factor 11 Number of Branch Circuits Required Number of Current-Carrying Conductors Raceway Fill Adjustment Factor Conductor Ampacity Before Correcting/ Adjusting 12 13 14 15 Conductor Ampacity After Correcting/ Adjusting Factors: • Circuits 1, 2, 3, and 4 are installed in the same raceway for a distance of 10 ft in an environment where the maximum ambient temperature will be 86°F (30°C). • Type THHN/THWN conductors shall be used for all circuits. • Minimum conductor size 12 AWG. Row 1: Calculated load in volt-amperes from problem statements. Row 2: Calculated load in amperes divided by voltage factor. Row 3: Load type: C = continuous; N = noncontinuous; M = motor; R = receptacle.
Transcribed Image Text:8:33 Refer to the National Electrical Code or the working drawings when necessary. Where applicable, responses should be written in complete sentences. Complete the following table using the following circuits: 1. Eleven 120-volt duplex receptacles for general use. Receptacle loads are considered to be noncontinuous and are not subject to the 80% load limitation as applied for con- tinuous loads, 2. Ten 120-volt fluorescent luminaires, rated at 150 volt-amperes each. 3. Eight 120-volt incandescent luminaires, rated at 200 watts each. 4. One 240-volt exhaust fan, rated at 5000 watts. 5. One 120/240-volt single-phase, 3-wire feeder, 40-kVA continuous load, originating in a room with an ambient temperature of 100°F (38°C). Row Circuit Number 1 3. 1 Calculated Load in Volt-Amperes Calculated-Load in Amperes 3 Load Type 4 Load Modifier 5 OCPD Selection Amperes 6 OCPD Ampere Rating 7. Minimum Conductor Ampacity 8. Minimum Conductor Size Type THHN/THWN 9. Ambient Temperature 10 Temperature Correction Factor 11 Number of Branch Circuits Required Number of Current-Carrying Conductors Raceway Fill Adjustment Factor Conductor Ampacity Before Correcting/ Adjusting 12 13 14 15 Conductor Ampacity After Correcting/ Adjusting Factors: • Circuits 1, 2, 3, and 4 are installed in the same raceway for a distance of 10 ft in an environment where the maximum ambient temperature will be 86°F (30°C). • Type THHN/THWN conductors shall be used for all circuits. • Minimum conductor size 12 AWG. Row 1: Calculated load in volt-amperes from problem statements. Row 2: Calculated load in amperes divided by voltage factor. Row 3: Load type: C = continuous; N = noncontinuous; M = motor; R = receptacle.
8:31 1 Search ul : O 88 CHAPTER 4 Branch Circuits Row 4: Load modifier, 1.25 for C and M load types, 1.0 for R and N load types. Row 5: Calculated load amperes (Row 2) multiplied by load modifier (Row 4). Row 6: OCPD rating equal to or next higher standard ampere rating than OCPD selection amperes (Row 5). Row 7: Ampacity of conductor equal to or greater than calculated load amperes (Row 2). Row 8: Conductor size with ampacity equal to or greater than calculated load amperes (Row 2). Select from Table 310.16 using the appropriate 60°C for circuits rated 100 amperes or less, and the 75°C column for loads over 100 amperes. Row 9: From problem statements. Row 10: From NEC Table 310.15(B)(1). Row 11: From load calculation. Row 12: From problem statements. Row 13: From NEC Table 310.15(C)(1). Row 14: From NEC 310.16 for conductor type specified in problem statement: (THHN/THWN). Row 15: Value from Row 13 multiplied by correction and/or adjustment factors. This value must be equal to or greater than the minimum conductor ampacity value in Row 7.
Transcribed Image Text:8:31 1 Search ul : O 88 CHAPTER 4 Branch Circuits Row 4: Load modifier, 1.25 for C and M load types, 1.0 for R and N load types. Row 5: Calculated load amperes (Row 2) multiplied by load modifier (Row 4). Row 6: OCPD rating equal to or next higher standard ampere rating than OCPD selection amperes (Row 5). Row 7: Ampacity of conductor equal to or greater than calculated load amperes (Row 2). Row 8: Conductor size with ampacity equal to or greater than calculated load amperes (Row 2). Select from Table 310.16 using the appropriate 60°C for circuits rated 100 amperes or less, and the 75°C column for loads over 100 amperes. Row 9: From problem statements. Row 10: From NEC Table 310.15(B)(1). Row 11: From load calculation. Row 12: From problem statements. Row 13: From NEC Table 310.15(C)(1). Row 14: From NEC 310.16 for conductor type specified in problem statement: (THHN/THWN). Row 15: Value from Row 13 multiplied by correction and/or adjustment factors. This value must be equal to or greater than the minimum conductor ampacity value in Row 7.
Expert Solution
Step 1

We are authorized to answer one question at a time, since you have not mentioned question you are looking for, so we are answering the first. Please repost your question separately for the remaining questions.

 

1.Eleven 120-volt duplex receptacles for general use. Receptacle loads are considered to be
noncontinuous and are not subject to the 80% load limitation as applied for continuous loads.

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 6 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Electric heating unit
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
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,
SEE MORE TEXTBOOKS