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Concept explainers
List the proper trade size of electrical metallic tubing for the following. Assume that THHN insulated conductors are used. See Chapter 9, Table C1, NEC.
- a. Three 14 AWG ___________________
- b. Four 14 AWG ___________________
- c. Five 14 AWG ___________________
- d. Six 14 AWG ___________________
- e. Three 12 AWG ___________________
- f. Four 12 AWG ___________________
- g. Five 12 AWG ___________________
- h. Six 12 AWG ___________________
- i. Six 10 AWG ___________________
- j. Four 8 AWG ___________________
(a)
![Check Mark](/static/check-mark.png)
Find the trade size EMT that is required for three 14 AWG THHN conductors.
Answer to Problem 18R
The trade size
Explanation of Solution
Discussion:
Refer to Table C1, Annex C of the NEC shows that three 14 AWG THHN conductors require trade size
Conclusion:
Thus, the trade size
(b)
![Check Mark](/static/check-mark.png)
Find the trade size EMT that is required for four 14 AWG THHN conductors.
Answer to Problem 18R
The trade size
Explanation of Solution
Discussion:
Refer to Table C1, Annex C of the NEC shows that four 14 AWG THHN conductors require trade size
Conclusion:
Thus, the trade size
(c)
![Check Mark](/static/check-mark.png)
Find the trade size EMT that is required for five 14 AWG THHN conductors.
Answer to Problem 18R
The trade size
Explanation of Solution
Discussion:
Refer to Table C1, Annex C of the NEC shows that five 14 AWG THHN conductors require trade size
Conclusion:
Thus, the trade size
(d)
![Check Mark](/static/check-mark.png)
Find the trade size EMT is required for six 14 AWG THHN conductors.
Answer to Problem 18R
The trade size
Explanation of Solution
Discussion:
Refer to Table C1, Annex C of the NEC shows that six 14 AWG THHN conductors require trade size
Conclusion:
Thus, the trade size
(e)
![Check Mark](/static/check-mark.png)
Find the trade size EMT is required for three 12 AWG THHN conductors.
Answer to Problem 18R
The trade size
Explanation of Solution
Discussion:
Refer to Table C1, Annex C of the NEC shows that three 12 AWG THHN conductors require trade size
Conclusion:
Thus, the trade size
(f)
![Check Mark](/static/check-mark.png)
Find the trade size EMT that is required for four 12 AWG THHN conductors.
Answer to Problem 18R
The trade size
Explanation of Solution
Discussion:
Refer to Table C1, Annex C of the NEC shows that four 12 AWG THHN conductors require trade size
Conclusion:
Thus, the trade size
(g)
![Check Mark](/static/check-mark.png)
Find the trade size EMT that is required for five 12 AWG THHN conductors.
Answer to Problem 18R
The trade size
Explanation of Solution
Discussion:
Refer to Table C1, Annex C of the NEC shows that five 12 AWG THHN conductors require trade size
Conclusion:
Thus, the trade size
(h)
![Check Mark](/static/check-mark.png)
Find the trade size EMT that is required for six 12 AWG THHN conductors.
Answer to Problem 18R
The trade size
Explanation of Solution
Discussion:
Refer to Table C1, Annex C of the NEC shows that six 12 AWG THHN conductors require trade size
Conclusion:
Thus, the trade size
(i)
![Check Mark](/static/check-mark.png)
Find the trade size EMT that is required for six 10 AWG THHN conductors.
Answer to Problem 18R
The trade size
Explanation of Solution
Discussion:
Refer to Table C1, Annex C of the NEC shows that six 10 AWG THHN conductors require trade size
Conclusion:
Thus, the trade size
(j)
![Check Mark](/static/check-mark.png)
Find the trade size EMT that is required for four 8 AWG THHN conductors.
Answer to Problem 18R
The trade size
Explanation of Solution
Discussion:
Refer to Table C1, Annex C of the NEC shows that four 8 AWG THHN conductors require trade size
Conclusion:
Thus, the trade size
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- EBK ELECTRICAL WIRING RESIDENTIALElectrical EngineeringISBN:9781337516549Author:SimmonsPublisher:CENGAGE LEARNING - CONSIGNMENT
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