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The ET practice Jouneymans test. The ET practice Jouneymans test.
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Old 07-03-2009, 09:52 AM   #181
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You are right about the EMT being longer. The others are 10 feet long with the coupling on.

Where are you getting the allowing 6 inches on each side of the luminaire from?
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Old 07-03-2009, 12:01 PM   #182
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Quote:
Originally Posted by ralpha494 View Post
You are right about the EMT being longer. The others are 10 feet long with the coupling on.

Where are you getting the allowing 6 inches on each side of the luminaire from?
You must keep fluorescents 6" clear of any shelf measured vertically to the ceiling. Thus, if you have a twelve inch shelf you would plumb straight to the ceiling and at that point you need to leave 6" . That is from the two art. I stated earlier.
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Old 08-03-2009, 05:25 PM   #183
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OK. You've had a month to ask a question.

What is the maximum number of # 10 THHN stranded conductors that are permitted in a 10 inch long piece of 1 inch EMT between a panel and a pull box?
A. 16
B. 24
C. 25
D. 26
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Old 08-03-2009, 05:37 PM   #184
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OK. You've had a month to ask a question.

What is the maximum number of # 10 THHN stranded conductors that are permitted in a 10 inch long piece of 1 inch EMT between a panel and a pull box?
A. 16
B. 24
C. 25
D. 26
Answer: B

#10 thhhn- .0211.... Table 5

Using Note 4 to Table 4 we can fill 60%

Table 4 area of 1" emt at 60%= .519

divide .519/.0211= 24.6
Last edited by Dennis Alwon; 08-03-2009 at 05:39 PM.
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Old 08-18-2009, 05:25 PM   #185
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C'mon Dennis. What's your question?
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Old 08-18-2009, 06:31 PM   #186
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What size GEC to a water pipe is needed for a 100 amp service?
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Old 10-27-2009, 07:38 PM   #187
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2nd year working from 05 code book sheephishly answers: 310.16 says 100 amp service requires #3, so 250.66 says #3 ungrounded service conductors require at least a #8 copper GEC. That is my final answer.

edit: flipped back a page and found 310.15(B)(6) which (I think) states #4's are adequate for 100 amp service. Answer remains the same, however.
Last edited by electric mike; 10-27-2009 at 08:04 PM.
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