Test1

Guardrail System

A barrier erected to prevent employees from falling to lower levels

Competent Person

A person who knows the right standard, can identify hazards in the operation, and is designated by the employer, and has the authority to take appropriate actions.

Controlled Access Zone

Means an area in which certain work (overhand bricklaying) may take place without the use of guardrail systems, personal fall arrest systems, or safety net systems and access to the zone is controlled

Positioning Device System

a body belt or body harness system rigged to allow an employee to be supported on an elevated vertical surface, such as a wall, and work with both hands free while leaning

Lifeline

a component consisting of a flexible line for connection to an anchorage at one end to hang vertically, or for connection to anchorages at both ends to stretch horizontally, and which serves as a means for connecting other components of a personal fall arrest system to the anchorage

Snaphook

a connector comprised of a hook-shaped member with a normally closed keeper, or similar arrangement, which may be opened to permit the hook to receive an object and, when released, automatically closes to retain the object

Self-Retracting Lifeline/Lanyard

a deceleration device containing a drum-wound line which can be slowly extracted from, or retracted onto, the drum under slight tension during normal employee movement, and which, after onset of a fall, automatically locks the drum and arrests the fall

Rope Grab

a deceleration device which travels on a lifeline and automatically, by friction, engages the lifeline and locks so as to arrest the fall of an employee

Lanyard

a flexible line of rope, wire rope, or strap which generally has a connector at each end for connecting the body belt of body harness to a deceleration device, lifeline, or anchorage

Opening

a gap or void 30 inches or more high and 18 inches or more wide, in a wall or partition, through which employees can fall to a lower level

Toeboard

a low protective barrier that will prevent the fall of materials and equipment to lower levels and provide protection from falls for personnel

Steep Roof

a roof having a slope greater than 4 in 12

Low-Slope Roof

a roof having a slope less than or equal to 4 in 12

Safety-Monitoring System

a safety system in which a competent person is responsible for recognizing and warning employees of fall hazards

Personal Fall Arrest System

a system used to arrest an employee in a fall from a working level. It consists of an anchorage, connectors, a body belt of body harness and may include a lanyard, deceleration device, lifeline, or suitable combinations of these

Mechanical Equipment

all motor or human propelled wheeled equipment used for roofing work, except wheelbarrows and mopcarts

Unprotected Sides and Edges

any side or edge of a walking/working surface where there is no wall or guardrail system at least 39 inches

Connector

means a devce which is used to couple (connect) parts of the personal arrest system and positioning device systems together. It may be an independent compnent of the system, such as a carabiner, or it may be an integral component of part of the system (such as a buckle or dee-ring sewn into a body belt or body harness, or a snap-hook spliced sewn to a lanyard or self-retracting lanyard)

Hole

means a gap or void 2 inches or more in its least dimension, in a floor, roof, or other walking/working surface

Anchorage

means a secure point of attatchment for lifelines, lanyards or deceleration devices

Body Belt

means a strap with means both for securing it about the waist and for attatching it to the lanyard, lifeline, or deceleration device

Equivalent

means alternative designs, materials, or methods to protect against a hazard which the employer can demonstrate will provide an equal or greater degree of safety for employees that the methods, materials, or designs specified in the standard.

Buckle

means any device for holding the body belt or body harness closed around the employee's body

Deceleration Device

means any mechnaism, such as a rope grab, rip- stitch lanyard, specially-woven lanyard, tearing or deforming lanyards, automatic self-retracting lifelines/lanyards etc., which serves to dissipate a substantial amount of energy during a fall arrest, or otherwise limit the energy imposed on an employee during fall arrest.

Dangerous Equipment

means euipment (such as pickling or galvanizing tanks, degreasing units, machinery, electrical equipment, and other units) which as a result of form or function, may be hazardous to employee who fall onto or into such equipment

Failure

means load refusal, breakage, or seperation of component parts. Load refusal is the point where the ultimate strength is exceeded.

Body Harness

means straps which may be secured about the employees in a manner that will distribute the fall arrest forces over at least the thighs, pelvis, waist, chest, and shoulders with means for attatching it to other components of a fall arrest system.

Free Fall

means the act of falling before a personal fall arrest system begins to apply forces to arrest the fall.

Deceleration Distance

means the additional vertical distance a falling employee travels, excluding lifeline elongation and free fall distance, before stopping, from the point at which the decleration device begins to operate. It is measured as the distance at the distance between the location of an employee's body belt or body harness attatchment point at the moment of activation (at the onset of fall arrest forces) of the deceleration device during a fall, and the location of that attatchment point after the employee comes to a full stop.

Free Fall Distance

means the vertical displacement of the fall arrest attatchment point on the employee's body belt or body harness between onset of the fall and just before the system begins to apply forces to arrest the fall. THis distance excludes deceleration distance, and lifeline/lanyard elongation, but includes any deceleration device slide distance or self-retracting lifeline/lanyard extension before they operate and fall arrest forces occur.

Infeasible

meansd that it is impossible to perfom the construction work using a conventional fall protection system or that it is technologically impossible to use any one of these systems to provide fall protection.

Leading Edge

the edge of a floor, roof, or formwork for a floor or other walking/working surface which changes location as additional floor, roof, decking, or formwork sections are placed, formed or constructed

Roof

the exterior surface on the top of a building

Roofing Work

the hoisting, storage, application, and removal of roofing materials and equipment

Overhand Bricklaying and Related Work

the process of laying bricks and masonry units such that the surface of the wall to be jointed is on the opposite side of the wall from the mason, requiring the mason to lean over the wall to complete the work

Lower Levels

those areas or surfaces to which an employee can fall