Snorkel SP22 - Manual (Page 67)

Appendix A. Glossary
aerial platform—a mobile device that has an
adjustable position platform, supported from
ground level by a structure.
authorized personnel—personnel approved as
assigned to perform specific duties at a specific
location.
base—the relevant contact points of the aerial
platform that form the stability support (e.g. wheels,
casters, outriggers, stabilizers).
boom—a movable cantilever beam which
supports the platform.
center of gravity—the point in the aerial platform
around which its weight is evenly balanced.
chassis—the integral part of the aerial platform
that provides mobility and support for the booms.
fall restraint—a system that is used while working
on a boom lift within the boundaries of platform
guardrails to provide restraint from being projected
upward from the platform. This system includes a
harness or belt, lanyard, and a lanyard anchor.
Federal OSHA, ANSI, and Snorkel require the use
of additional fall protection beyond the platform
guardrails on boom supported aerial platforms.
gradeability—the maximum slope that the aerial
platform is capable of travel.
ground fault circuit interrupter—a fast-acting
circuit breaker that opens to stop electrical circuit
flow if it senses a very small current leakage to
ground. Also called GFCI. The GFCI is used to
protect personnel against a potential shock hazard
from defective electrical tools or wiring.
guardrail system—a vertical barrier around the
platform to prevent personnel from falling.
hazardous location—any location that contains,
or has the potential to contain, an explosive or
flammable atmosphere as defined by ANSI/NFPA
505.
jib boom—a boom assembly located between the
main boom and the platform.
lower controls—the controls located at ground
level for operating some or all of the functions of the
aerial platform.
main boom—a boom assembly located between
the turntable and the platform or jib boom. The
main boom includes the base, intermediate, and tip
boom.
maximum travel height—the maximum platform
height or the most adverse configuration(s) with
respect to stability in which travel is permitted by
the manufacturer.
Minimum Safe Approach Distance—the
minimum safe distance that electrical conductors
may be approached when using the aerial
platform. Also called MST
personal fall arrest system—a fall protection
system that is used while working on an
unprotected edge (such as a roof top with no
guardrail). This system includes a harness, lanyard
or other connecting device, a fall arrestor, an
energy absorber or decelerator, an anchorage
connector, and a secure anchorage such as a
building beam, girders or columns. An aerial
platform is not a fall arrest anchorage.
platform—the portion of an aerial platform
intended to be occupied by personnel with their
tools and materials.
platform height—the vertical distance measured
from the floor of the platform to the surface upon
which the chassis is being supported.
qualified person—a person, who by reason of
knowledge, experience, or training is familiar with
the operation to be performed and the hazards
involved.
rated work load—the designed carrying capacity
of the aerial platform as specified by the
manufacturer.
stow—to place a component, such as the platform,
in its rest position.
turntable—the structure above the rotation
bearing which supports the main boom. The
turntable rotates about the centerline of rotation.
unrestricted rated work load—the maximum
designed carrying capacity of the aerial platform
allowed by the manufacturer in all operating
configurations.
upper controls—the controls located on or beside
the platform used for operating some or all of the
functions of the aerial platform.
working envelope—the area defined by the
horizontal and vertical limits of boom travel that the
platform may be positioned in.
SP20/SP22 – 11890A