Intent 1:
To limit the probability of direct exposure of the
elevator door interlock mechanism to fire, which could lead to the
failure of the interlock mechanism and the opening or partial opening
of the elevator doors during the time required to achieve occupant
safety and for emergency responders to perform their duties, which
could lead to:
- harm to persons, including emergency responders, and
- the failure of the elevator operating mechanism, which
could lead to the elevators not operating as intended, which could
lead to delays or inefficiencies in fire emergency response operations,
which could lead to:
- delays in evacuation or moving to a safe place, which
could lead to harm to persons, including emergency responders, and
- the spread of fire to other parts of the building, which
could lead to harm to persons, including emergency responders.