Fall Injury Prevention
A Fall Injury Prevention System is designed to prevent a person from falling at height on a work site. This includes edge protection, fall restraint and fall arrest systems.
In Western Australia, there is a requirement within the OS&H Regulations 1996 to address the risk a fall 2m or above. This refers to a scaffold, fixed stairs, formwork, landing or a suspended slab.
The regulations also states, if the risk of a fall at a workplace is 3m or above then it is a requirement to provide a Fall Injury Protection System.
Fall Arrest Systems are required when there is a risk of a limited free fall or a free fall from a height of 3m or above, and or if the surface is over 15 degrees.
Limited Free Fall is a fall up to 600mm.
For example if a person is climbing a vertical line ladder using a harness and traveller they are using a 12Kn Limited Free Fall system.
Free Fall is described as a fall over 600mm.
Fall Arrest systems uses a safety harness attached to a secure anchor point complying with AS/NZS 1891. The anchor or line will be capable of withstanding a minimum 12 Kn force for a limited free fall and 15 Kn force for free fall.
The life line or lanyard is the connection between your harness and point of anchor. It is required to have a compliant energy absorbing devise that is attached between the line and the harness. In the event of a person falling the energy absorbing lanyard absorbs the initial force and then anchor restrains the person’s fall.
Fall Restraint systems limits a person’s horizontal movement to restrict them from reaching a position where limited free fall is possible. This is achieved by the user wearing a safety harness that is connected to an fixed length lanyard attached to an anchor point, or a horizontal life line or rail system. The surface must be under 15 degrees, otherwise you are in fall arrest.
A Fall Zone is an area where a free fall could be possible. The fall zone can be within 2m of an edge of a structure or on a slope over 15 degrees.
Types of Safety Roof Anchor Points
Single Anchor Point, or a series of single anchor points. Allows a person wearing a safety harness to attach their life line or lanyard too so that they can safely move into and work in the fall zone. The person is essentially attached to a single anchor point at any one time.
Static Lines are fixed horizontal cable, where a person wearing a safety harness, can attach to, via an energy absorbing life line or lanyard and traverse up and down the line.
A Rail System is an overhead rail that a person wearing a safety harness can attach to via an energy absorbing lanyard or inertia reel. In the event of a fall, this system will activate and arrest a 600mm limited free fall.
All Roof Access WA installs comply with
- AS/NZ 1891-1, 2, 3 & 4 – Fall Arrest Systems
- AS 1657-2018- Fixed Platforms, Walkways, Stairways and Ladders
- AS/NZS 4488 Parts 1 & 2: Industrial Rope Access Systems
- AS/NZS 1319 Safety Signs for Occupational Environment
- Worksafe – Code of Practice – Safe Design of Buildings and Structures