8
KINETIC ENERGY, AND ASME A17.1 2000 FOR ELEVATOR DOOR SYSTEMS
Requirement 2.13.4.2.4 of ASME A17.1 2000 stipulates that a data tag must be attached to the
door operator or car crosshead. If you are in a jurisdiction that has adopted the 2000 code, you
need to read and understand this requirement, and all of the related requirements. (see
attached)
The data tag is required to show:
- The minimum closing code time for the door system that will result in average kinetic
energy of less than 7.37 foot-pounds.
- The minimum code closing time for the door system, when in nudging, that will result
in average kinetic energy of less than 2.5 foot-pounds.
The attached data tables are designed to give
GAL
customers the information necessary to
comply with these requirements. If you use all
GAL
equipment, and follow
GAL
instructions,
these sheets will give you the minimum closing code time for all of the normal door
configurations, sizes, and operator models available.
Notes:
Code Closing Distance / Time
On side opening, the code distance starts 2” from the jamb and goes to 2” from full close.
(opening size – 4”) On center opening, code distance starts 1” from the jamb and goes to 1”
from full close. (still opening size – 4”) Times shown are minimums for the code closing
distance
Average Kinetic Energy (7.37 ft lbs)
This is the requirement for which the times shown on the data tables were calculated. The
rotational inertia of the motor and operator is included in these calculations.
GAL
’s calculations
include equipment rigidly connected thereto and accommodate all hangers, rollers, clutches,
closers, releases, and any normal reopening devices
Actual (peak) Kinetic Energy (17 ft lbs)
Using
GAL
equipment and following
GAL
instructions, you will not exceed the requirement for
actual (peak) KE.
Nudging Kinetic Energy (2.5 ft lbs)
If taking the minimum closing code time for your application and doubling it, you will have a
safe time to use for the requirement under nudging. (Note – this is a very conservative time, if
you want to close your door more quickly while in nudging, call
GAL
for an absolute minimum)
Non Standard Systems
A non-standard application, like three speed doors, or panels that are so heavy or light that
they fall outside the range shown on the data tables, you can call
GAL
and we will calculate
closing code time for your job.
The following paragraphs are excerpted from ASME 17.1 2000. They are provided here for
your convenience only.
Summary of Contents for MOVFE 2500
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