What is the maximum time delay for emergency lighting that has been interrupted from a primary power source?
A)45 seconds
B)10 seconds
C)60 seconds
D)Any other time under one minute as long as it is daylight hours
Answer(B) 10 Seconds
700.12 General Requirements
Current supply shall be such that, in the event of failure of the normal supply to, or within the building or group of buildings concerned, emergency lighting, emergency power, or both shall be available within the time required for the application but not to exceed 10 seconds.
Add comment
Comments