TB 140 - Elevator Ops At Highrise Incidents Flashcards
Firefighters wearing PPE and carrying equipment require approximately how long to ascend one floor in a stairwell?
-One minute
(fire doubles in size every minute it burns unchecked)
Elevator Emergency Service is divided into what two phases?
-Phase I, “Recall Phase”
-Phase 2, “Override Phase”
Which Elevator Emergency Service phase refers to the manual or automatic recall of elevators to the lobby or designated recall level of the building?
Phase I
•manual recall: “Emergency Service” key switch in the lobby or fire control room
•automatic recall: activation of an elevator lobby smoke detector.
Phase I operation:
When the emergency operation switch is turned to the “ON” position, all elevator cars in the bank are recalled to the lobby (or designated recall floor) automatically.
All elevators recalled and will remain there with their doors _______. The key should be REMOVED to prevent the system from being inadvertently turned off.
Open
Phase I Recall:
Some older emergency operation switches in the lobby have a ______ position which is used to place the elevator in operation on a temporary basis when the entire building has been deemed safe for normal use, BUT there is still enough residual SMOKE to actuate the detectors or the detectors are malfunctioning.
Bypass position
*The elevator key is NOT REMOVABLE when the switch is in the bypass position.
Older lobby key switches for Phase I Recall have “On,” “Off,” and possibly “Bypass.”
The 2008 Elevator Code requires a three position “Recall” key switch with the positions marked as?
-RESET
-OFF
-ON
(With this system, there is no means to “bypass” the alarm system when a fire protection device cannot be reset)
Which Elevator Emergency Service phase refers to the fire service controls within the elevator car itself which allows firefighters to manually control the elevator from inside the car only?
Phase II, Override Phase
Phase II Override:
An Emergency Service switch is provided in each elevator car with Phase II capability. This switch is “normally” a three-position key switch.
What are the three positions?
-On
-Off
-Hold
Turning both Phase I and Phase II switches to the “ON” position operates the ______ Phase.
Override phase
Elevator Recall:
Older elevator systems may have “fireman service” or “______” labels, as opposed to “On” and “Off.”
•“Normal”
Phase II Override:
When operating elevators in the “Emergency Service” mode, what two things are rendered inoperable?
automatic door open feature
photo-electric device
Phase II Override:
Open elevator car doors are closed by continuous pressure on the “Door Closed” button. If a “Door Closed” button is not provided, continuous pressure on the _____ button will serve to close the doors.
If either of these buttons are released before the doors reach the fully closed position, the doors will automatically reopen.
-the desired floor button
Phase II Override:
Continuous pressure on the “Door Open” button causes the elevator doors to open. If the button is released prior to the doors reaching the fully opened position, the doors will automatically close.
What is the only exception to this feature?
Elevator car doors may automatically open upon return to the lobby.
Phase II override:
The “HOLD” elevator panel key position is used in order to MAINTAIN the elevator car on the FLOOR where the elevator is currently located as well as maintaining the DOORS in the OPEN position.
Should the service key be removable from the panel when placed in the “HOLD” position?
Yes.
Elevator remains in “HOLD” position until key is reinserted and “ON” is selected.
Elevator ascent during investigations or firefighting operations shall only be used when the reported location is above the _____ floor.
6th floor
The Company Officer, before using an elevator, should attempt to accurately determine the location of the fire or alarm.
This can be accomplished by:
-inspection of the alarm panel
-security closed circuit video
-actual observation (fire indicated from an exterior window)
-information received from building security, building maintenance or occupants.