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Published on: December 11, 2014
Dynamic strength tests for low elongation lanyards
1Department of Personal Protective Equipment, Central Institute for Labour Protection - National Research Institute, Łódź, Poland. krbas@ciop.lodz.pl
Abstract:
Lanyards are still important and common components of personal systems protecting against falls from a height. Experience with dynamic strength tests of lanyards indicates that test methods based on EN and ISO standards do not make objective assessment possible. This paper presents the results of theoretical and laboratory investigations of the performance of adjustable lanyards during fall arrest. The obtained results indicate that methods of testing and assessment based on those standards demonstrate considerable shortcomings when applied to low elongation lanyards. The assumptions for improved requirements and test methods of lanyards made of, e.g., steel wire and aramid ropes are also presented.
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