Chapter 4 Elevator Extrication Flashcards
What are the two types of elevators?
Electric and hydraulic
Where should the equipment room be located for a hydraulic elevator?
Basement or lowest level of a building
What two types of doors are present on modern elevators?
Cab door and hoistway door
Generally, fire service controls are required on elevators constructed after what year?
1973
If the lobby key is activated in Phase 2 mode and turned to bypass, what should happen?
The bypass mode should override the control of any smoke or heat detectors and return the elevators to normal operation.
Freight elevators will normally service what floors of a building?
The entire building
If an elevator is inoperative, where should rescue personnel be positioned?
In the elevator equipment room and on the floor where the inoperative elevator is located
Elevator electrical relays can often be reset by turning the power off for at least how long?
30 seconds
What tool facilitates using a hoistway access opening to deactivate the locking mechanism, allowing the hoistway and cab doors to be opened?
Lunar key
Depending on the manufacturer and type of elevator, opening the hoistway doors can be simplified if the cab is positioned in what specific location?
The door lock zone, which is commonly defined as being a few inches above the landing
What components does a typical electric elevator consist of?
Hoistway Car Cables Counterweights Vertical tracks Emergency Safety brakes Electrical equipment
What are the two types of electrical elevators?
Drum-type
Traction-type
What type of electric elevator is used for higher lifts and greater speeds?
Traction-type
Where is the elevator equipment room located for traction-type elevators?
Roof penthouse of above the elevator shaft
What are the limitations to a drum-type elevator?
Limitations in the length and diameter of the winding drum restrict this type of elevator to 150-foot lifts and slow speeds
