Sentence 6.3.1.3.(1)

Intent 1:

To limit the probability that proprietary signalling systems will not be maintained at the level of performance originally intended, which could lead to the improper operation of such systems in a fire situation, which could lead to the inability of the systems to promptly notify persons in the building, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.

Intent 2:

To limit the probability that proprietary signalling systems will not be maintained at the level of performance originally intended, which could lead to the systems not operating properly in a fire situation, which could lead to the inability of the systems to promptly notify emergency responders, which could lead to delays in carrying out fire emergency response operations, which could lead to:

• delays in the evacuation or movement of persons to a safe place, or
• the spread of fire.

This is to limit the probability of harm to persons.