Question 11002 of 844 · Washington 01 Journey Level Electrician Exam
Upon failure of the normal supply, a legally required standby system must have power available within what time?
Exactly one answer is correct.
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Correct answer to question 11002
- A: 60 seconds
Explanation
Legally required standby systems must have power available within the time required for the application, but not more than 60 seconds. Their loads are less critical to life safety than emergency loads.
More questions: Emergency, Limited Energy and Communications
- 11003Which type of alternate power system has no NEC-specified maximum time for power to be restored?
- 11004How must emergency system wiring generally be installed in relation to other wiring?
- 11005What type of transfer equipment is required for an emergency system?
- 11009How must emergency lighting systems be designed with respect to lamp failure?
- 11010Where on-site emergency power sources are installed, a sign must be placed where?
- 11011Which record must be kept for an emergency system?