Fall Injury Prevention
A Fall Injury Prevention system is designed to prevent a person falling from one level to another level. This includes edge protection, Fall Prevention and Fall Arrest systems.
In Western Australia, there is a requirement within the OS&H Regulations 1996 to provide edge protection if there is a risk of 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.
A Fall Arrest System is required when there is a risk of a Limited Free Fall or a Free Fall.
A Limited Free Fall is a fall up to 600mm.
For example if a person was climbing a vertical line ladder with a traveler they are using a 12kn fall arrest system with a Limited Free Fall.
Likewise a person wearing a safety harness and connected up to anchor points walking across a roof that is under 15 degrees and who are not within 2m of an edge are also at risk of only a limited free fall.
A Free Fall is described as a fall over 600mm.
A Fall Arrest system 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 that is attached between the anchor and harness is required to have a compliant energy absorbing devise. In the event of a person falling, the anchor point and the energy absorbing lanyard absorbs the initial force and then restrains the person’s fall.
A Fall Restraint system limits a person’s horizontal movement to restrict them from reaching a position where limited free fall is possible. This is where a person wearing a safety harness is connected to an fixed length lanyard attached to an anchor point, or a horizontal life line or rail system. A Fall Restraint system becomes a fall arrest system when the surface is over 15 degrees.
A Fall Zone is an area where a free fall could be possible. The fall zone could be close to an edge of a structure or on a slope over 15 degrees.
Types of Safety Roof Anchor Points
A Single Safety Anchor Point, or a series of single anchor points. This is where a person wearing a safety harness can attach their energy absorbing life line or lanyard. 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.
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 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