SECTION
1008 DOORS, GATES AND TURNSTILES
1008.1.8.6
Delayed egress locks. Approved, listed, delayed egress
locks shall be permitted to be installed on doors serving
any occupancy except Group A, E and H occupancies in buildings
that are equipped throughout with an automatic sprinkler system
in accordance with Section 903.3.1.1
or an approved automatic smoke or heat detection system installed
in accordance with Section 907, provided
that the doors unlock in accordance with Items 1 through 6
below. A building occupant shall not be required to pass through
more than one door equipped with a delayed egress lock before
entering an exit.
1.
The doors unlock upon actuation of the automatic sprinkler
system or automatic fire detection system.
2.
The doors unlock upon loss of power controlling the lock
or lock mechanism.
3.
The door locks shall have the capability of being unlocked
by a signal from the fire command center.
4.
The initiation of an irreversible process which will release
the latch in not more than 15 seconds when a force of not
more than 15 pounds (67 N) is applied for 1 second to the
release device. Initiation of the irreversible process shall
activate an audible signal in the vicinity of the door.
Once the door lock has been released by the application
of force to the releasing device, relocking shall be by
manual means only.
Exception:
Where approved, a delay of not more than 30 seconds is permitted.
5.
A sign shall be provided on the door located above and within
12 inches (305 mm) of the release device reading:
PUSH
UNTIL ALARM SOUNDS. DOOR CAN BE OPENED IN 15 [30] SECONDS.
6. Emergency lighting
shall be provided at the door.
Exceptions:
1.
Stairway discharge doors shall be openable from the egress
side and shall only be locked from the opposite side.
2.
This section shall not apply to doors arranged in accordance
with Section 403.12.
3.
In stairways serving not more than four stories, doors are
permitted to be locked from the side opposite the egress
side, provided they are openable from the egress side and
capable of being unlocked simultaneously without unlatching
upon a signal from the fire command center, if present,
or a signal by emergency personnel from a single location
inside the main entrance to the building.
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