Elevator Rescue Flashcards
The 1.0 purpose of 3.3.13 Elevator Rescue
To establish procedures for employees to follow during elevator rescue incidents.
3.0 General
Following these guidelines personnel should be able to execute uniform, safe and orderly removal of trapped occupants from elevators
4.0 Definitions
Inner (car) door
The doors that are attached to the elevator car to keep occupants safely in the car
4.0 Definitions
Outer (Hoistway) door
Doors that are installed to protect an open hoistway when the car is not at that landing
4.0 Definitions
Hydraulic elevators
-Old instillations use
-Newer instillations use
-Generally limited to
-Less modern that travel over six use
-Equipment room are normally located at
-Old instillations use water
-Newer instillations use oil
-Generally limited to six stories
-Less modern that travel over six use cables and counterweights
-Equipment room are normally located at a lower level floor but can be found at any floor level 50 to 100 ft away from the elevator shaft
-
4.0 Definitions
Hydraulic elevators
Equipment rooms contain what main components
2
-Controller or relay panel (electronics necessary to run the elevator)
-Hydraulic power unit (contains a revivor for the oil supply , a hydraulic pump, and valves to raise and lower the car)
4.0 Definitions
Traction elevators
-Usually fond in buildings greater than
-Components of
6
-Usually fond in buildings greater than 6 floors
- A car
-Counterweight
-Traction sheave
-Electric motor
-Wire hoisting ropes
-Counterweight
4.0 Definitions
Traction elevators
Car speed is dependent on
The size of the traction sheave and the speed of the electric motor
4.0 Definitions
Traction elevators
Equipment room location
contents
-usually above the hoistway
-Main power
-Electrical shut off for drive motor 600V
-Electrical shut off for car 110V
Hydraulic elevators
At the bottom of the shaft you will find
Two car buffers
Hydraulic elevators
The in ground cylinder depth is equal to
The height of elevator travel
Hydraulic elevators
Cab guide rails are
Anchored by guiderail brackets to shaft, floors, and/or supplemental supports
Traction elevators
Additionally (drawing) you will find, in the equipment room
-A governor
-Equipment restraints
Traction elevators
Hoisting ropes (cables) connect
Cab to counterweights
Traction elevators
The hoisting sheave is also listed as (drawing)
Geared machine (hoisting sheave)
Traction elevators (drawing)
The door operator is located
At the top of the cab door side
Traction elevators (drawing)
The cab is guided by
The counterweight is guided by
-Cab roller guides
-Counterweight roller guides
Traction elevators (drawing)
Elevator guiderail is secured by
-Guiderail brackets anchored to the shaft, floors, and/or supplemental supports
-Counterweight guiderail (
Traction elevators (drawing)
At the bottom of the car near the elevator guiderail is a
Car safety device
Traction elevators (drawing)
Two cables hanging from the bottom of the car to the counterweights are labeled as
-Compensation ropes
-Traveling cable
Traction elevators (drawing)
Under counterweight it states
Provide positive attachment or encapsulate to prevent weights from falling
At the bottom of the shaft between the guiderails there is a
2
-Counterweight buffer
-Car buffer
Procedure
A. assignment
1 suppression unit
Procedure
B. The first arriving unit
The first six steps
-Scene size up convey to dispatch
-Determine if rescue exists
-Additional resources (SQ73)
-Determine car location
-Reassure, calm occupants
-Determine if medical needs are present
Procedure B.
- rule out ____ button engaged, this should be suspected if
-Stop button
-Alarm is audible from the elevator
Procedure B.
- Secure power to elevator via the main breaker
a.
b.
c.
-This will de-energize the elevator motor (440V breaker)
-The car light and fan are on a separate (120V breaker)
-One crew member shall remain at the main breaker with a radio to assure the power remains secure
Procedure B.
9.
10.
-Report to floor where car is located
-Attempt to reset the elevator by cycling the power (waiting 30 seconds in between)
Procedure B.
- If cycling the power is unsuccessful
a.
b.
-Fireman’s service key should be used to attempt recall
a. Turn the key to the on position (phase I), this should recall the elevator to the first floor
b. Return the car to normal operation, (turn the key to reset then off position)
If procedure B. does not work proceed to
-Procedure D. elevator door operations
Procedure C.
Does not exist