Question 6017 of 749 · Maryland Journeyperson Electrician Exam
Where ungrounded conductors 4 AWG or larger enter an enclosure through a raceway, what is required at the entry?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 6017
- A: An identified insulating bushing or equivalent protection
Explanation
Conductors 4 AWG and larger entering a cabinet, box, or enclosure from a raceway must be protected by an identified fitting with a smoothly rounded insulating surface. See 300.4 in NEC 2020 and 2023 (300.6 in NEC 2026).
More questions: Wiring Methods, Conductors and Boxes
- 6019EMT must be securely fastened within what distance of each outlet box, junction box, or termination?
- 6020What is the maximum distance between supports for EMT under the general rule?
- 6021Rigid metal conduit must generally be secured within what distance of each box or termination?
- 6022Trade size 1 rigid PVC conduit must be supported at intervals not exceeding
- 6023Expansion fittings are required in a run of PVC conduit where the expected length change due to temperature is at least
- 6024NM cable must be secured at intervals not exceeding