Question 10008 of 871 · Maryland Journeyperson Electrician Exam
The disconnecting means for crane runway conductors must be of what type?
Exactly one answer is correct.
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Correct answer to question 10008
- C: Readily accessible, operable from the ground or floor, and lockable open
Explanation
A disconnecting means for runway conductors must be readily accessible and operable from the ground or floor level, open all ungrounded conductors, and be lockable open. This lets personnel de-energize the crane before working on it.
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