wheelervm5579 wheelervm5579
  • 03-09-2020
  • Social Studies
contestada

Secondary power supplies must supply power to protected-premises fire alarm systems for a minimum of ?

Respuesta :

Vickiee Vickiee
  • 08-09-2020

Answer: 24 hours of standby followed by 5 minutes of alarm

Explanation:

Fire alarm and other security alarm devices would always need power supply to function, depriving or shortening the sippy of power would make them not functional for those moments which they lacked the power, a 24hours supply is a must for effectiveness of the fire alarm system.

Answer Link

Otras preguntas

Following a vote on a bill in the Arizona State Senate, each of the following scenarios could be true, EXCEPT: A. The bill passes in the Senate and moves to the
what are 2 possible reasons why the atmosphere on mars is so thin
President Wilson's Fourteen Points outlined a few general principles, some specific demands about national borders, and most importantly, _____.
The probablilty that andreas train is late is 0.05 work out the probablilty that her train isnt late?
what does dominance refer to in genetics
A crack or fracture in the earths surface
how to use the word benefit and expertise
Original price:____ Discount:5% Sale price:$68.40
Why do you think rates are usually written as unit rates?
It takes Juwan exactly 35 minutes by car to get to his grandmother's the nearest parking area is 4 minute walk from her apartment. One week, he realized that