BS EN 355-2002 pdf download.Personal protective equipment against falls from a height-Energy absorbers.
This BS EN 355 specifies the requirements, test methods, marking, information supplied by the manufacturer and packaging for energy absorbers. Energy absorbers conforming to this European Standard are used as elements or components either integrated in a lanyard, an anchor line or a full body harness or in combination with one of them.
Combinations of an energy absorber and a lanyard are sub-systems constituting one of the fall arrest systems covered by EN 363, when combined with a full body harness specified in EN 361.
Fall arresters are specified in EN 353-1, EN 353-2 and EN 360.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies (including amendments).
EN 354:2002, Personal protective equipment against tails from a height — Lanyards.
EN 362. Personal protective equipment against (ails from a height — Connectors.
EN 363:2002, Personal protective equipment against fails from a height – Fall arrest systems.
EN 364:1992, Personal protective equipment against tails from a height – Test methods.
EN 365:1992, Personal protective equipment against falls from a height – General requirements for instructions for
use and for marking.
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
energy absorber
element or a component of a fall arrest system, which is designed to dissipate the kinetic energy developed during a
fall from a height [EN 363]
3.2
lanyard
connecting element or component of a fall arrest system. A lanyard may be of synthetic flb’e rope, wire rope, webbing or chain [EN 363]
3.5
arrest distance
vertical distance H in metres, measured at the mobile load bearing point of the connecting sub-system from the initial posihon (onset of the tree fall) to the final position (equilibrium after the arrest), excluding the displacements of the full body harness and its attachment element [EN 363]
4 Requirements
4.1 Design and ergonomics
The general requirements for the design and ergonomics are specified in 4.1 of EN 363:2002.
4.2 Materials and construction
If an energy absorber is incorporated in a lanyard (i.e. the energy absorber cannot be removed without mutilating the lanyard, or without the use of a special dedicated tool), the lanyard shall conform to 4.2 and 4.3 of EN 354:2002,
Connectors for energy absorbers shall conform to EN 362.
43 Static preloading
When tested as described in 5.1 the permanent extension caused by activation of the energy absorber after
preloading with 2 kN shall not be greater than 50 mm.
4.4 DynamIc pertormance
When tested as described in 5.2 with a rigid steel mass of 100 kg or a torso dummy of 100 kg mass, the braking force F shall not exceed 6 kN and the arrest distance H shall be H < 2 L + 1,75 m, depending on the total length L of the energy absorber including lanyard.
4.5 Static strength
When tested as described in 5.3 with a force of 15 kN, the fully developed energy absorber shall withstand the static
strength test without tearing or rupture.
4.6 Marking and Information
Marking of the energy absorber shall be in accordance with clause 6.
Information shall be supplied with the energy absorber in accordance with clause 7.
5 Test methods
5.1 Static preloading test
5.1.1 Apparatus
The static preloading test apparatus shall conform to 5.3.1 of EN 364:1992.
5.1.2 Method
The static preloading test shall be conducted as described in 5.3.2 of EN 364:1992. The permanent extension shall be
measured at the point of activation of the energy absorber.
5.2 DynamIc performance test
5.2.1 Apparatus
The dynamic performance test apparatus shall conform to 4.2, 4.4, 4.5 and 4.6 of EN 364:1992.
5.2.2 Method
5.2.2.1 Energy absorber as a component
If the energy absorber is a component, the dynamic performance test shall be conducted as specified in 5.3.4.1 of EN 364:1992 with a rigid steel mass of 100 kg.BS EN 355-2002 pdf download.