Question 11003 of 790 · California General Electrician Exam
Which type of alternate power system has no NEC-specified maximum time for power to be restored?
Exactly one answer is correct.
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Correct answer to question 11003
- B: Optional standby system
Explanation
Optional standby systems under Article 702 protect property or business operations and are not legally required. The NEC sets no restoration time limit for them, unlike the 10 second and 60 second limits for emergency and legally required systems.
More questions: Emergency, Limited Energy and Communications
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