Question 9014 of 871 · Maryland Journeyperson Electrician Exam
A rigid metal conduit run leaves a Class I, Division 1 location and enters an unclassified area. Within what distance of the boundary must the boundary seal be installed?
Exactly one answer is correct.
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Correct answer to question 9014
- A: 10 ft on either side of the boundary
Explanation
A boundary seal is required where the conduit leaves the Division 1 location and may be placed on either side of the boundary within 10 ft. The raceway between the seal and the boundary must not contain any union, coupling, box, or fitting other than listed explosionproof reducers at the seal.
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