Z259.11-05 (R2015) - Energy Absorbers and Lanyards




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This is the second edition of CSA Z259.11, Energy absorbers and lanyards. It supersedes the previous edition, published in 1992 under the title Shock Absorbers for Personal Fall Arrest Systems.

This Standard, along with the fourth edition of CSA Z259.1, Body belts and saddles for work positioning and travel restraint, also supersedes CSA Z259.3-M1978, Lineman's Body Belt and Lineman's Safety Strap, and CAN/CSA-Z259.1-95, Safety Belts and Lanyards. CSA Z259.11 now covers lanyards, straps, and energy absorbers; CSA Z259.1 now covers body belts and saddles.


1.1 General

This Standard specifies requirements for the performance, design, testing, marking, and instructions of energy absorbers and lanyards, including lineman's pole straps and integrally connected lanyards and energy absorbers.

1.2 Applications

Energy absorbers and lanyards are used as parts of complete fall arrest, travel restraint, fall restrict, or work positioning systems, as applicable. The scope of this Standard does not include information regarding the proper selection of components in order to assure the intended performance of these systems.

1.3 Exclusions

This Standard is not intended for lanyards that are used exclusively as anchorage connectors or used for recreational activities such as climbing or mountaineering.

1.4 Terminology

In CSA Standards, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; "may" is used to express an option or that which is permissible within the limits of the standard; and "can" is used to express possibility or capability.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.5 Units of measure

The values given in SI (metric) units are the standard. The values given in parentheses are approximate and are for information only.

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