prEN 12841
(Main)Personal fall protection equipment - Rope access systems - Rope adjustment devices
Personal fall protection equipment - Rope access systems - Rope adjustment devices
This European Standard applies to rope adjustment devices intended for use in rope access systems. It specifies the requirements, test methods, marking and manufacturer’s instructions and information.
Persönliche Absturzschutzausrüstung - Systeme für seilunterstützten Zugang - Seileinstellvorrichtungen
Dieses Dokument gilt für Seileinstellvorrichtungen, die für den Gebrauch in Systemen für seilunterstütztes Arbeiten vorgesehen sind. Es legt die Anforderungen, Prüfverfahren, Kennzeichnung sowie Anweisungen und Informationen des Herstellers fest.
Équipements de protection individuelle pour la prévention des chutes de hauteur - Systèmes d'accès par corde - Dispositif de réglage de corde pour maintien au poste de travail
Le présent document s'applique aux dispositifs de réglage de corde destinés à être utilisés dans les systèmes d'accès par corde. Il spécifie les exigences, les méthodes d'essai, le marquage et les instructions. et informations du fabricant.
Osebna oprema za varovanje pred padci z višine - Vrvni dostopni sistemi - Naprave za nastavitev vrvi
General Information
RELATIONS
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN 12841:2020
01-november-2020
Osebna oprema za varovanje pred padci z višine - Vrvni dostopni sistemi -
Naprave za nastavitev vrvi
Personal fall protection equipment - Rope access systems - Rope adjustment devices
Persönliche Absturzschutzausrüstung - Systeme für seilunterstützten Zugang -Seileinstellvorrichtungen
Équipements de protection individuelle pour la prévention des chutes de hauteur -
Systèmes d'accès par corde - Dispositif de réglage de corde pour maintien au poste de
travailTa slovenski standard je istoveten z: prEN 12841
ICS:
13.340.60 Zaščita pred padci in zdrsi Protection against falling and
slipping
oSIST prEN 12841:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------oSIST prEN 12841:2020
---------------------- Page: 2 ----------------------
oSIST prEN 12841:2020
DRAFT
EUROPEAN STANDARD
prEN 12841
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2020
ICS 13.340.60 Will supersede EN 12841:2006
English Version
Personal fall protection equipment - Rope access systems -
Rope adjustment devices
Équipements de protection individuelle pour la Persönliche Absturzschutzausrüstung - Systeme für
prévention des chutes de hauteur - Systèmes d'accès seilunterstützten Zugang - Seileinstellvorrichtungen
par corde - Dispositif de réglage de corde pourmaintien au poste de travail
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 160.If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12841:2020 E
worldwide for CEN national Members.---------------------- Page: 3 ----------------------
oSIST prEN 12841:2020
prEN 12841:2020 (E)
Contents Page
European foreword ....................................................................................................................................................... 4
Introduction .................................................................................................................................................................... 5
1 Scope .................................................................................................................................................................... 6
2 Normative references .................................................................................................................................... 6
3 Terms and definitions ................................................................................................................................... 6
4 Requirements ................................................................................................................................................... 9
4.1 General requirements for all Types ......................................................................................................... 9
4.1.1 Compatibility .................................................................................................................................................... 9
4.1.2 Edge design ........................................................................................................................................................ 9
4.1.3 Corrosion resistance ...................................................................................................................................... 9
4.1.4 Marking and information ............................................................................................................................. 9
4.2 Specific requirements for Type A rope adjustment devices ............................................................ 9
4.2.1 Connecting elements ...................................................................................................................................... 9
4.2.2 Free movement ................................................................................................................................................ 9
4.2.3 Static strength .................................................................................................................................................. 9
4.2.4 Dynamic performance ................................................................................................................................ 10
4.2.5 Dynamic strength and residual strength ............................................................................................. 10
4.3 Specific requirements for Type B rope adjustment devices ......................................................... 10
4.3.1 Free movement ............................................................................................................................................. 10
4.3.2 Release prevention function .................................................................................................................... 10
4.3.3 Minimum working strength ..................................................................................................................... 10
4.3.4 Dynamic strength and residual strength ............................................................................................. 10
4.4 Specific requirements for Type C rope adjustment devices ......................................................... 11
4.4.1 Hands-free locking element ..................................................................................................................... 11
4.4.2 Minimum working strength ..................................................................................................................... 11
4.4.3 Static strength ............................................................................................................................................... 11
4.4.4 Dynamic strength and residual strength ............................................................................................. 11
4.4.5 Descent velocity and panic locking ........................................................................................................ 12
4.4.6 Temperature rise ......................................................................................................................................... 12
5 Test methods ................................................................................................................................................. 12
5.1 Test apparatus............................................................................................................................................... 12
5.2 Conditioning and setup before testing ................................................................................................. 12
5.2.1 General conditioning .................................................................................................................................. 12
5.2.2 Conditioning to heat .................................................................................................................................... 13
5.2.3 Conditioning to wet ..................................................................................................................................... 13
5.2.4 Conditioning to very cold .......................................................................................................................... 13
5.2.5 Conditioning to wet and cold ................................................................................................................... 13
5.3 General tests .................................................................................................................................................. 13
5.3.1 Test samples .................................................................................................................................................. 13
5.3.2 Compatibility ................................................................................................................................................. 13
5.3.3 Edge design ..................................................................................................................................................... 14
5.3.4 Corrosion resistance ................................................................................................................................... 14
5.4 Specific tests ................................................................................................................................................... 14
5.4.1 Length of connecting elements ................................................................................................................ 14
5.4.2 Movement test ............................................................................................................................................... 14
5.4.3 Release prevention test for Type B rope adjustment devices...................................................... 15
---------------------- Page: 4 ----------------------oSIST prEN 12841:2020
prEN 12841:2020 (E)
5.5 Static tests ....................................................................................................................................................... 16
5.5.1 Test samples ................................................................................................................................................... 16
5.5.2 Minimum working strength test for Type B and Type C rope adjustment devices............... 16
5.5.3 Static strength test for Type A and Type C rope adjustment devices ......................................... 17
5.6 Dynamic tests ................................................................................................................................................. 18
5.6.1 Test samples ................................................................................................................................................... 18
5.6.2 Dynamic performance for Type A rope adjustment devices ......................................................... 18
5.6.3 Dynamic strength and residual strength for Type A rope adjustment devices ..................... 19
5.6.4 Dynamic strength and residual strength for Type B and Type C rope adjustment
devices .............................................................................................................................................................. 21
5.7 Descent test for Type C rope adjustment devices ............................................................................. 23
5.7.1 General ............................................................................................................................................................. 23
5.7.2 Test samples ................................................................................................................................................... 24
5.7.3 Test arrangement ......................................................................................................................................... 24
5.7.4 Velocity, locking and temperature rise ................................................................................................ 24
6 Marking ............................................................................................................................................................ 25
7 Manufacturer’s instructions and information ................................................................................... 25
Annex A (informative) List of useful information .......................................................................................... 27
A.1 General ............................................................................................................................................................. 27
A.2 Maintenance of rope adjustment devices within the user’s reach ............................................. 27
A.3 Anticipation of emergency situations ................................................................................................... 27
A.4 Care when selecting anchor lines ........................................................................................................... 28
Annex B (informative) Background and rationale about the changes between thisdocument and EN 12841:2006................................................................................................................. 29
Annex C (informative) Significant changes between this document and EN 12841:2006 .............. 32
Annex D (informative) Overview about the range of requirements for rope adjustment
devices according to EN 12841 ................................................................................................................ 36
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Regulation 2016/425 aimed to be covered ....................................................... 38
Bibliography ................................................................................................................................................................. 40
---------------------- Page: 5 ----------------------oSIST prEN 12841:2020
prEN 12841:2020 (E)
European foreword
This document (prEN 12841:2020) has been prepared by Technical Committee CEN/TC 160
“Protection against falls from height including working belts”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.This document will supersede EN 12841:2006.
This document has been prepared under a standardization request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of
EU Regulation(s).For relationship with EU Regulation(s), see informative Annex ZA, which is an integral part of this
document.---------------------- Page: 6 ----------------------
oSIST prEN 12841:2020
prEN 12841:2020 (E)
Introduction
In rope access systems, rope adjustment devices are used in combination with anchor lines, which could
be a working line or a safety line, normally made of ropes conforming to Type A of EN 1891. Rope
adjustment devices are intended to be used to link sit harnesses (in accordance with EN 813) or full
body harnesses (in accordance with EN 361) to a working line and a safety line to allow access, egress
and changes in the work position, to give support and to protect against falls.Attention is drawn to the limitations of rope adjustment devices. Type A rope adjustment devices are
for use on safety lines to prevent a fall in the event of failure of the working line or its components.
However, in extreme circumstances, such as failure of the working line or its components during
improper use of the system, Type A rope adjustment devices may be called upon to prevent or arrest a
limited fall. This is reflected in the test requirements. Type B and C rope adjustment devices are for
ascending and descending a working line respectively, but also have a fall prevention function. The
design of each type may be incorporated into another when, in every case, they should meet the higher
requirements of any common or similar test.In a rope access system, the worker should always be protected by a Type A rope adjustment device
connected to a safety line and a Type B or C rope adjustment device connected to a working line. The
two rope adjustment devices with their respective anchor line are all components of the protective
system. It is fundamental for the safe use of a rope access system that the worker is always connected to
both anchor lines, and that any slack in the anchor lines and connecting lanyards is avoided.
---------------------- Page: 7 ----------------------oSIST prEN 12841:2020
prEN 12841:2020 (E)
1 Scope
This document applies to rope adjustment devices intended for use in rope access systems. It specifies
the requirements, test methods, marking and manufacturer’s instructions and information.
2 Normative referencesThe 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.
EN 362, Personal protective equipment against falls from a height - ConnectorsEN 363, Personal fall protection equipment - Personal fall protection systems
EN 364:1992, Personal protective equipment against falls from a height - Test methods
EN 365, Personal protective equipment against falls from a height - General requirements for instructions
for use, maintenance, periodic examination, repair, marking and packagingEN 892:2012+A1:2016, Mountaineering equipment - Dynamic mountaineering ropes - Safety
requirements and test methodsEN ISO 9227:2017, Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2017)
3 Terms and definitionsFor the purposes of this document, the terms and definitions given in EN 363 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http://www.iso.org/obp— IEC Electropedia: available at http://www.electropedia.org/
3.1
rope adjustment device
component which, when fitted to an anchor line of appropriate diameter and type, will enable the user
to vary his or her position along itNote 1 to entry: to entry: Rope adjustment devices are sub-divided into Types A, B and C. The same rope
adjustment device may conform to more than one type.3.2
anchor line
flexible line connected at least at one end to an anchor point, to provide a means of support or
safeguard for a personNOTE 1 to entry: An anchor line can be a working line or a safety line.
3.3
safety line
anchor line provided as a safeguard
---------------------- Page: 8 ----------------------
oSIST prEN 12841:2020
prEN 12841:2020 (E)
3.4
working line
anchor line used primarily for support during access, egress and work positioning
3.5Type A rope adjustment device: safety line adjustment device
rope adjustment device for a safety line which accompanies the user during changes of position and/or
allows adjustment of the safety line, and which locks automatically to the safety line under static or
dynamic loading3.6
Type B rope adjustment device: working line ascender
manually operated rope adjustment device which, when attached to a working line, locks under load in
one direction and slides freely in the opposite directionNOTE 1 to entry: Type B rope adjustment devices are intended always to be used in conjunction with a Type A
rope adjustment device connected to a safety line.3.7
Type C rope adjustment device: working line descender
manually operated, friction inducing rope adjustment device which allows the user to achieve a
controlled downward motion and a stop, with hands off, anywhere on the working line
NOTE 1 to entry: Type C rope adjustment devices are intended always to be used in conjunction with a Type A
rope adjustment device connected to a safety line.3.8
attachment point
primary point of connection to the rope adjustment device, as described by the manufacturer in the
manufacturer’s instructions and information3.9
release prevention
mechanism or method to prevent the rope adjustment device from accidentally releasing the anchor
line3.10
connecting element
element or combination of elements, which forms the link between a Type A rope adjustment device
and the fall arrest attachment point of the full body harness conforming to EN 361
Note 1 to entry: to entry: Examples of a connecting element are a connector, a lanyard and/or energy
dissipating element.3.11
arrest distance
vertical distance measured between the initial and final positions of the test mass in the dynamic
performance test of the Type A rope adjustment deviceNOTE 1 to entry: The arrest distance is expressed in metres.
---------------------- Page: 9 ----------------------
oSIST prEN 12841:2020
prEN 12841:2020 (E)
3.12
braking force
max
maximum force measured at the anchor point during the braking period of the dynamic performance
test of the Type A rope adjustment deviceNOTE 1 to entry: The braking force is expressed in kilonewtons.
3.13
locking distance
vertical distance measured between the initial and final positions of the rope adjustment device in the
dynamic strength testNote 1 to entry: to entry: The locking distance is expressed in metres.
3.14
descent control element
integral element of the Type C rope adjustment device, normally operated by hand, used to control the
velocity of descent down the descent line3.15
hands-free locking element
integral part or function of the descent control element of a Type C rope adjustment device which
completely stops the descent and thereby prevents an uncontrolled descent or a fall if the user fails to
engage the rope adjustment device3.16
panic-locking element
integral part or function of the descent control element of a Type C rope adjustment device which
completely stops the descent and thereby prevents an uncontrolled descent or a fall if the user panics
and operates the rope adjustment device beyond its intended descent control parameters
3.17maximum rated load
maximum mass of the person, including tools and equipment carried, as specified by the manufacturer
Note 1 to entry: to entry: Maximum rated load is expressed in kilograms.[SOURCE: EN 353-1:2014, 3.11]
3.18
minimum rated load
minimum mass of the person, excluding tools and equipment carried, as specified by the manufacturer
Note 1 to entry: to entry: Minimum rated load is expressed in kilograms.[SOURCE: EN 353-1:2014, 3.12]
---------------------- Page: 10 ----------------------
oSIST prEN 12841:2020
prEN 12841:2020 (E)
4 Requirements
4.1 General requirements for all Types
4.1.1 Compatibility
4.1.1.1 Release prevention
The rope adjustment device shall be designed so that the rope adjustment device can only be detached
from or attached to each anchor line as listed in the manufacturer’s instructions and information by at
least two consecutive deliberate manual actions, when tested in accordance with 5.3.2.1.
4.1.1.2 PlacementWhen tested in accordance with 5.3.2.2, the rope adjustment device shall not unintentionally slide more
than 300 mm along each anchor line as listed in the manufacturer’s instructions and information.
4.1.2 Edge designWhen checked in accordance with 5.3.3, the rope adjustment device shall not have sharp or rough edges
that can cause injury to the user.4.1.3 Corrosion resistance
After testing in accordance with 5.3.4, metal parts of the rope adjustment device shall show no evidence
of corrosion of the base metal which could affect its function, e.g. the correct operation of moving
elements and locking function. White scaling or tarnishing is acceptable if the function is not impaired.
NOTE Conformity to this requirement does not imply suitability for use in highly corrosive environments, e.g.
offshore, chemical plants.4.1.4 Marking and information
Marking of the rope adjustment device shall be in accordance with Clause 6.
Instructions and information shall be supplied with the rope adjustment device in accordance with
Clause 7.4.2 Specific requirements for Type A rope adjustment devices
4.2.1 Connecting elements
The length of the connecting element for Type A rope adjustment devices shall not exceed 1 m, when
measured in accordance with 5.4.1, and shall be within ± 5 % of the length given in the manufacturer’s
instructions and information, see Clause 7 c).4.2.2 Free movement
Type A rope adjustment devices shall allow intentional movement in both directions on each anchor
line as listed in the manufacturer’s instructions and information when tested in accordance with 5.4.2.1
and 5.4.2.2.4.2.3 Static strength
Type A rope adjustment devices shall withstand a force of 15 kN for 3 min, when tested on an anchor
line in accordance with 5.5.3.For Type A rope adjustment devices that have more than one attachment point specified by the
manufacturer, each attachment point shall be tested.---------------------- Page: 11 ----------------------
oSIST prEN 12841:2020
prEN 12841:2020 (E)
The rope adjustment device shall be tested on each anchor line as listed in the manufacturer’s
instructions and information.4.2.4 Dynamic performance
When tested in accordance with 5.6.2, with a rigid steel mass of 100 kg or a mass equivalent to the
maximum rated load, whichever is the greater, and with a rigid steel mass equivalent to the minimum
rated load, the maximum braking force F shall not exceed 6 kN and the arrest distance H shall
max ADnot exceed 2 L+1 m, with L = length of the connecting element of the rope adjustment device.
The rope adjustment device shall be tested on each anchor line as listed in the manufacturer’s
instructions and information.4.2.5 Dynamic strength and residual strength
When tested in accordance with 5.6.3, with a rigid steel mass of 100 kg or a mass equivalent to the
maximum rated load, whichever is the greater, the Type A rope adjustment device shall not release the
initial test mass and shall hold a residual load of 3 kN. The locking distance H shall not exceed 2 m.
The rope adjustment device shall be tested on each anchor line as listed in the manufacturer’s
instructions and information.4.3 Specific requirements for Type B rope adjustment devices
4.3.1 Free movement
Type B rope adjustment devices shall allow intentional movement along each anchor line as listed in the
manufacturer’s instructions and information when tested in accordance with 5.4.2.1 and 5.4.2.3.
4.3.2 Release prevention functionWhen the rope adjustment device is tested in accordance with 5.4.3.2 at a load of 400 N, the anchor line
shall not become detached from the rope adjustment device. The requirement shall be fulfilled for each
anchor line as listed in the manufacturer’s instructions and informationWhen the rope adjustment device is tested in accordance with 5.4.3.3 at a load of 2 000 N, the anchor
line shall not become detached from the rope adjustment device. The requirement shall be fulfilled for
each anchor line as listed in the manufacturer’s instructions and information4.3.3 Minimum working strength
Type B rope adjustment devices shall withstand a force of 4 kN for 3 min with a maximum slippage of
100 mm when tested on an anchor line in accordance with 5.5.2.No part of the Type B rope adjustment device shall show any signs of permanent deformation that
would affect its function, and the anchor line shall not show any signs of tearing or breaking.
For Type B rope adjustment devices that have more than one attachment point specified by the
manufacturer, each attachment point shall be tested to this requirement.The rope adjustment device shall be tested on each anchor line as listed in the manufacturer’s
instructions and information.4.3.4 Dynamic strength and residual strength
When tested in accordance with 5.6.4, with a rigid steel mass of 100 kg or a mass equivalent to the
maximum rated load, whichever is the greater, the Type B rope adjustment device shall not release the
initial test mass and shall hold a residual load of 3 kN. The locking distance H shall not exceed 2 m.
---------------------- Page: 12 ----------------------oSIST prEN 12841:2020
prEN 12841:2020 (E)
The rope adjustment device shall be tested on each anchor line as listed in the manufacturer’s
instructions and information.4.4 Specific requirements for Type C rope adjustment devices
4.4.1 Hands-free locking element
Type C rope adjustment devices shall incorporate a hands-free locking element which enables the user
to stop, hands-off, anywhere on the anchor line, when tested in accordance with 5.7.4.1 and 5.7.4.2.
4.4.2 Minimum working strengthType C r
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.