A conducting connection between an electrical device and the
earth, or another conducting body that serves in place of the earth.
A mechanisms used to vertically position a platform.
An established elevation in relation to sea level or another point.
A view of a structure in a vertical plane.
A guardrail placed across the end of a scaffold platform or its extensions.
ENERGY ABSORBER See Shock Absorber.
SHOCK-ABSORBER - A component of a system that allows dissipation of energy by extending the deceleration distance.
An alternative design or features that will provide an equal factor of safety.
A device designed to expand and grip the inside of a tube. Used for
joining tubes end to end.
EXPOSED SIDES AND ENDS
allowable horizontal distance away from a sturdy, continuous vertical surface (such as a building
wall) or a sturdy, continuous surface (such as a floor). This is normally a distance of 14- to 16-
inches, but may be greater or lesser depending upon the type of work to be performed on the
platform and the particular safety standard under which the work is being performed.