EBK PRINCIPLES OF ELECTRIC CIRCUITS
10th Edition
ISBN: 9780134880068
Author: Buchla
Publisher: VST
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For Questions 21, 22, and 23, two 3-in. raceways enter a pull box, one through a side and theother in the back. Four 500 kcmil, type THHN conductors will be installed in the raceway.No other raceways enter the box. What are the minimum dimensions of the pull box
21. Length ________________22. Width ________________23. Depth ________________
For Questions 24, 25, 26, and 27, determine the answers using the information shown in
the drawing.
Trade size 2 conduit
Trade size 2 conduit
Trade size 3 conduit
Trade size 3 conduit
Trade size 2 conduit
Trade size 2 conduit
24. Dimension a must be at least.
25. Dimension b must be at least
the same conductors).
inches.
inches (the raceways contain
inches.
26. Dimension c must be at least
27. Do you foresee any difficulties in installing the conductors in these raceways?
Explain.
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- For problems 1-4, select from the following list of raceway types. Check the letter(s) representing the correct response(s): a. electrical metallic tubing b. electrical nonmetallic tubing c. flexible metallic tubing d. rigid metal conduit e. intermediate metal conduit f. rigid nonmetallic conduit 1. Which raceway(s) may be used where cinder fill is present? ☐ a. ☐ b. ☐ c. ☐ d. ☐ e. 2. Which raceway(s) may be used in hazardous locations? ☐ a. b. ☐ c. ☐ d. 3. Which raceway(s) may be used in wet locations? ☐ a. ☐ b. ☐ c. ☐ d. ☐e. ☐ ☐ e. ☐ f. ☐ d. ☐ e. ☐ f. 4. Which raceway(s) may be used for service entrances? ☐ c. ☐ a. O b.arrow_forwardHANDWRITTEN SOLUTION NOT USING CHATGPT PLEASEarrow_forwardPEN & PAPER SOLUTION PLEASE NOT USING AIarrow_forward
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