BS EN ISO 21853:2020 pdf download.Kite boarding – Release system – Safety requirements and test methods.
1 Scope
This document specifies the minimum safety requirement and test methods for a release system that reduces the pulling force of the kite and disconnects the user from the kite.
This document is applicable for release systems which are operated intentionally by the user or another person, and are used for the sport of kite boarding.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 679, Cement — Test methods — Determination of strength
EN 12275, Mountaineering equipment — Connectors — Safety requirements and test methods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
4.4 Handling
.4.1 General It shall be possible to trigger the main release system by a first single action. It shall be possible to trigger the disconnecting release system it by a second single action. The action for triggering shall be ergonomically and kinematically suitable for the physiological movements of the user. It should be possible to trigger the main release system/disconnecting release system with garments, e.g. gloves.
4.4.2 Triggering force The force to perform the act of triggering shall be ≥20 N and ≤170 N. Test in accordance with 5.6.1 in relation to certain conditions (see 5.6.3.1, 5.6.3.2, 5.6.4, 5.6.5 and, if appropriate, 5.6.6). The release system shall not show signs of plastic deformation or of having been affected by the tests in any way that could provoke malfunction.
4.4.3 Release force It shall be possible to trigger the main release system and/or disconnecting release system with one hand only, without any load simulating the pulling force of the kite. Test in accordance with 5.5.2.
4.4.4 Duration of release The main release system and/or disconnecting release system shall be triggered in ≤2 s. Test in accordance with 5.6.1.
4.4.5 Reachability It shall be possible to trigger the main release system and/or disconnecting release system with either of the user's hands as described in the user's manual. The connection points should not be on the back of the user.
4.5 Behaviour during release All parts of the main release system and/or disconnecting release system designed to disengage as intended by the manufacturer, by the act of triggering, shall disengage (force generated by kite reduced or cancelled). The disconnecting release system shall further disconnect the user from the kite. Test in accordance with 5.6.BS EN ISO 21853 pdf download.