Question 11018 of 749 · Maryland Journeyperson Electrician Exam
A portable generator is connected to a dwelling's premises wiring as an optional standby source. What is required?
Exactly one answer is correct.
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Correct answer to question 11018
- D: Transfer equipment that prevents inadvertent interconnection of normal and standby sources
Explanation
Optional standby systems connected to premises wiring require transfer equipment designed to prevent inadvertent interconnection of the normal and alternate sources. A back-feed cord is dangerous and not permitted.
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