The foundation of a personal fall arrest system
When working at heights you must follow directive 89/686/EEG, AFS 1996:7/2006:7 and the Work Environment Act SFS 1977:1160.
We have categorized the main components in items 1, 2, 3 and 4
Items 1, 2, 3 and 4 collectively form a personal fall arrest and can, if used correctly, cushion or prevent injuries following a fall. However, this is only applicable if all 4 points are implemented according to current standards and used collectively.
1. Anchoring point
The anchoring point is standardized according to SS-EN 795, regarding personal fall arrest equipment and its anchoring. An anchoring point could be a beam, scaffolding, welded construction, temporary horizontal wire rope or equal. According to this standard the anchoring point must manage to sustain a static load of at least 12 kN during a time of 3 minutes.The anchoring point should be placed as high as possible to minimize risk in case of a fall, and as vertical as possible in relation to the work position. This is to avoid oscillating effects and contact with underlying levels in case of a fall.
2. Coupling device
A coupling device binds the anchoring point to the fall arrest equipment and harness. A coupling device could be a webbing sling, a steel wire rope or a carabiner. The essential aspect is that the coupling device meets the requirements of SS-EN 362 and manages to sustain at least 15 kN during a time of 3 minutes.
3. Energy absorber and block
The energy absorber equipment is the link between the coupling device and the fall arrest harness. It limits the fall for the user and assures that the body is not exposed to loads greater than 6 kN. The equipment can consist of, for example, energy absorber lanyard, energy absorber or anchor line with block or rope grab. It is important to calculate the potential fall height in order to choose the right equipment. Energy absorbing units must meet requirements according to EN 355.
4. Fall arrest harness
The fall arrest harness is a part of the personal fall arrest system carried by the user. The choice of harness depends on area of usage, environment and type of work, but only a complete harness is approved as fall arrest. It is crucial that the harness is worn in a way that secures the user without any risk of slipping out of it. The fall arrest harness must meet requirements according to EN 361.