To limit the probability that fire alarm and voice communication systems will not operate properly in a fire situation, which could lead to persons and emergency responders not being promptly notified of the fire situation, which could lead to inappropriate action, which could lead to delays in evacuation or moving to a safe place, which could lead to harm to persons.
To limit the probability that fire alarm and voice communication systems will not operate properly in a fire situation, which could lead to emergency responders being unaware or misinformed, which could lead to delays or ineffectiveness in carrying out fire emergency response operations, which could lead to the spread of fire, which could lead to harm to persons.