Appendix A. Glossary - Snorkel MHP15HD Operator's Manual

aerial platform
a mobile device that has an adjustable position
platform, supported from ground level by a
structure.
ambient temperature
t h e a i r t e m p e r a t u r e o f t h e i m m e d i a t e
environment.
ammeter
an instrument for measuring the strength of an
electric current in amperes.
authorised 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, stabilisers).
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 arrest system
is the form of fall protection which involves the
safe stopping of a person already falling. The
system includes:
A - Anchorage - a fixed structure to which the
components of the system are rigged.
B - Body Wear - a full body harness worn by
the person (referred to as a "safety harness"
in this manual).
C - Con nec tor - a sub sys tem com po nent
con nect ing the har ness to the an chor age,
such as a lanyard.
D- Deceleration Device - a subsystem
component designed to dissipate the forces
associated with a fall arrest event.
fall restraint
is the form of personal fall protection which
prevents persons who are in a fall hazard area
from falling. The system includes:

Appendix A. Glossary

A - Anchorage - a fixed structure to which the
components of the system are rigged.
B - Body Wear - a full body har ness worn by
the per son (re ferred to as a "safety har ness"
in this man ual).
C - Con nec tor - a sub sys tem com po nent
con nect ing the har ness to the an chor age,
such as a lanyard. The lanyard is short
enough that the person can not reach the fall
hazard.
ground pressure
the maximum pressure, expressed in pounds
per square inch, a single wheel concentrates on
the floor or ground.
gradeability
he maximum slope that the aerial platform is
capable of travel.
ground fault circuit interrupter or
residual current detector
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 or
RCD. The GFCI/RCD is used to protect
personnel against a potential shock hazard from
defective electrical tools or wiring.
guardrail system
the primary fall protection system to eliminate
the fall hazard. The system includes Toe boards,
Midrail, Toprail and uprights.
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.
level sensor
a device that detects a preset degree of variation
from perfect level. The level sensor is used to
sound an alarm if operating on a slope greater
than the preset value. It may also (depending on
the machine) prevent the it from operating
further until it is brought back within the preset
parameters.
lower controls
the controls located at ground level for operating
some or all of the functions of the aerial platform.