Equipment Marking and Identification
Many NEC requirements for equipment marking and identification directly relate to personnel safety and establishing electrically safe working conditions as addressed in NFPA 70E. It seems that requirements for “in sight from” equipment disconnects are often followed by exceptions that allow disconnects to be remote, but they must be lockable in the open position. Test your knowledge here.
1. Are lightning protection system installations not covered by the NEC?
Correct Answer: True
2. Which of the following is not an electrical device?
Correct Answer: Outlet
3. Flexible metal conduit is never permitted as an equipment grounding conductor.
Correct Answer: False
4. Where the Code rules include an “in sight from” phrase, what is the maximum visible distance?
Correct Answer: 50 feet
5. Which of the following does the NEC require removal of?
Correct Answer: All of the above
6. Panelboard circuit directories must meet which of the following for each branch circuit in the panelboard?
Correct Answer: All of the above
7. Do all transformers require working space as specified in Section 110.26?
Correct Answer: No
8. A grounding electrode conductor is required to be identified by which of the following?
Correct Answer: No identification requirement
9. Arc flash warning labels are required for feeder-supplied equipment at separate buildings or structures on the same premises.
Correct Answer: True
10. Slices or connections of conductors used in direct burial applications are required to be listed for that use.
Correct Answer: True
Score: