SIST EN 13411-6:2004
(Main)Terminations for steel wire ropes - Safety - Part 6: Asymmetric wedge socket
Terminations for steel wire ropes - Safety - Part 6: Asymmetric wedge socket
This European Standard specifies the minimum requirements, for asymmetrical wedge socket terminations for stranded steel wire ropes.
Steel asymmetric wedge sockets conforming to this standard are suitable for use at environment temperature.
Cast iron asymmetric wedge sockets conforming to this standard are suitable for use at environment temperature.
Examples of the construction and sizes of two separate designs of asymmetric wedge sockets are given in informative annexes A and B.
The informative annex C gives recommendations for safe use and inspection.
This European Sstandard deals with all significant hazards, hazardous situations and events relevant to asymmetric wedge sockets for terminations for steel wire ropes, when used as intended and under conditions of misuse which are reasonable foreseeable by the manufacturer.
This standard applies to terminations of steel wire ropes with asymmetrical wedge sockets which are manufactured after the date of its publication.
This standard does not cover rope fatigue.
Endverbindungen für Drahtseile aus Stahldraht - Sicherheit - Teil 6: Asymmetrische Seilschlösser
Diese Europäische Norm legt die Mindestanforderungen an asymmetrische Seilschlösser für Endverbindungen an Litzenseilen aus Stahldraht fest.
Beispiele für Konstruktion und Nenngrößen für zwei verschiedene Ausführungen von asymmetrischen Seilschlössern sind in den informativen Anhängen A und B angegeben.
Anhang C gibt Empfehlungen für den sicheren Gebrauch und die Prüfung.
Diese Europäische Norm behandelt alle für asymmetrische Seilschlösser für Seilendverbindungen bedeutsamen Gefährdungen, gefährlichen Situationen und Ereignisse, wenn diese wie vorgesehen verwendet werden und wenn sie unter falschen Bedingungen eingesetzt werden, soweit dies vom Hersteller vernünftigerweise vorhersehbar ist.
Diese Norm gilt für Seilendverbindungen mit asymmetrischen Seilschlössern, die nach dem Datum der Veröffentlichung hergestellt wurden.
Die Dauerfestigkeit von Seilen ist nicht Gegenstand dieser Norm.
Terminaisons pour câbles en acier - Sécurité - Partie 6: Boîte a coin asymétrique
La présente Norme européenne spécifie les prescriptions minimales de sécurité des terminaisons pour boîte a coin asymétrique destinées aux câbles en acier toronnés.
Des exemples de construction et de dimensions de deux modeles distincts de boîtes a coin asymétriques sont donnés dans les Annexes informatives A et B.
L'Annexe informative C donne des recommandations relatives a la sécurité d'emploi et au contrôle.
La présente Norme européenne traite de tous les phénomenes, situations et événements dangereux significatifs relatifs aux boîtes a coin asymétriques pour terminaisons de câbles en acier utilisables dans les conditions prévues ainsi que dans des conditions de mauvais usage raisonnablement prévisibles par le fabricant.
La présente norme est applicable aux terminaisons de câbles en acier a boîte a coin asymétrique fabriquées apres sa date de publication.
La présente norme ne traite pas de la fatigue des câbles.
Zaključki jeklenih žičnih vrvi - Varnost - 6. del: Asimetrični zagozdni spoji
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 13411-6:2004
01-november-2004
=DNOMXþNLMHNOHQLKåLþQLKYUYL9DUQRVWGHO $VLPHWULþQL]DJR]GQLVSRML
Terminations for steel wire ropes - Safety - Part 6: Asymmetric wedge socket
Endverbindungen für Drahtseile aus Stahldraht - Sicherheit - Teil 6: Asymmetrische
Seilschlösser
Terminaisons pour câbles en acier - Sécurité - Partie 6: Boîte a coin asymétrique
Ta slovenski standard je istoveten z: EN 13411-6:2004
ICS:
53.020.30 Pribor za dvigalno opremo Accessories for lifting
equipment
77.140.99 Drugi železni in jekleni izdelki Other iron and steel products
SIST EN 13411-6:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 13411-6:2004
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SIST EN 13411-6:2004
EUROPEAN STANDARD
EN 13411-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2004
ICS 53.020.30; 77.140.99
English version
Terminations for steel wire ropes - Safety - Part 6: Asymmetric
wedge socket
Terminaisons pour câbles en acier - Sécurité - Partie 6: Endverbindungen für Drahtseile aus Stahldraht - Sicherheit
Boîte à coin asymétrique - Teil 6: Asymmetrische Seilschlösser
This European Standard was approved by CEN on 24 March 2004.
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. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13411-6:2004: E
worldwide for CEN national Members.
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SIST EN 13411-6:2004
EN 13411-6:2004 (E)
Contents page
Foreword.3
Introduction .4
1 Scope.5
2 Normative references.5
3 Terms and definitions .5
4 List of significant hazards .6
5 Safety requirements and/or measures .7
6 Verification of safety requirements.9
7 Information for use .12
Annex A (informative) Asymmetric wedge socket with cast socket body – Design 1 .13
Annex B (informative) Asymmetric wedge socket with cast socket body – Design 2 .16
Annex C (informative) Recommendations for safe use and inspection .19
Annex ZA (informative) Relationship of this document with EC Directives.22
Bibliography .23
2
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SIST EN 13411-6:2004
EN 13411-6:2004 (E)
Foreword
This document (EN 13411-6:2004) has been prepared by Technical Committee CEN/TC 168 “Chains, ropes,
webbing, slings and accessories - Safety”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by December 2004, and conflicting national standards shall be withdrawn at the latest
by December 2004.
This document has been prepared under a mandate given to CEN by the European Commission and the European
Free Trade Association, and supports essential requirements of EC Directive(s).
For relationship with EC Directive(s), see informative annex ZA, which is an integral part of this document.
Annexes A, B and C are informative.
This document includes a Bibliography.
EN 13411 with the general title Terminations for steel wire ropes – Safety, consists of the following parts:
Part 1: Thimbles for steel wire rope slings
Part 2: Splicing of eyes for wire rope slings
Part 3: Ferrules and ferrule-securing
Part 4: Metal and resin socketing
Part 5: U-bolt wire rope grips
Part 6: Asymmeteric wedge socket
Part 7: Symmetric wedge socket
This is the first edition of this Part of this European Standard.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries
are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
3
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SIST EN 13411-6:2004
EN 13411-6:2004 (E)
Introduction
This European Standard is a Type C Standard as stated in EN 1070.
This European Standard has been prepared to provide a means of conforming with the essential requirements of
the Machinery Directive and associated EFTA regulations.
Purchasers ordering to this standard are advised to specify in their purchasing contract that the supplier operates
an independently verified quality assurance system to ensure themselves that products claimed to comply
consistently achieve the required level of quality.
The wedge sockets concerned and the extent to which hazards, hazardous situations and events are covered are
indicated in the scope of this document.
When provisions of this Type C standard are different from those which are stated in Type A or B standards, the
provisions of this Type C standard take precedence over the provisions of the other standards, for asymmetric
wedge sockets that have been designed and produced according to the provisions of this Type C standard.
4
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SIST EN 13411-6:2004
EN 13411-6:2004 (E)
1 Scope
This European Standard specifies the minimum requirements, for asymmetrical wedge socket terminations for
stranded steel wire ropes.
Examples of the construction and sizes of two separate designs of asymmetric wedge sockets are given in
informative annexes A and B.
The informative annex C gives recommendations for safe use and inspection.
This European Standard deals with all significant hazards, hazardous situations and events relevant to asymmetric
wedge sockets for terminations for steel wire ropes, when used as intended and under conditions of misuse which
are reasonably foreseeable by the manufacturer.
This standard applies to terminations of steel wire ropes with asymmetrical wedge sockets which are manufactured
after the date of its publication.
This standard does not cover rope fatigue.
2 Normative references
The following referenced documents are indispensable for the application 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 1050:1996, Safety of machinery – Principles for risk assessment.
EN 1369: 1996, Founding - Magnetic particle inspection.
EN 1371-1:1997, Founding – Liquid penetrant inspection – Part 1: Sand, gravity die and low pressure die
castings.
EN 10045-1, Metallic materials - Charpy impact test – Part 1: Test method.
EN 12385-2:2002, Steel wire ropes - Safety - Part 2: Definitions, designation and classification.
EN 45012, General requirements for bodies operating assessment and certification/registration of quality systems
(ISO/IEC Guide 62:1996).
EN ISO 7500-1, Metallic materials - Verification of static uniaxial testing machines - Part 1: Tension/compression
testing machines (ISO 7500-1:1999).
EN ISO 12100-2:2003, Safety of machinery – Basic concepts, general principles for design – Part 2: Technical
principles and specifications (ISO 12100-2:2003).
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 12385-2:2002 and the following
apply.
3.1
asymmetric wedge socket
assembly consisting of a socket body, wedge, and pin; when assembled the centre line of the pin is directly in line
with the longitudinal axis of the live portion of the rope
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SIST EN 13411-6:2004
EN 13411-6:2004 (E)
3.2
socket body
principal component of a wedge socket termination having an internal tapered form (see Figure 1) suitable for receiving
a wedge (see 3.3) and the rope with which the wedge is associated
3.3
wedge
flat tapered component with peripheral groove, suitable for fitting into a tapered socket body to accommodate a rope of
matching nominal diameter, see Figure 1
3.4
pin
removable component intended to facilitate connection of the socket body to its anchorage point
3.5
lot
number of asymmetric wedge sockets from which samples are selected for testing purposes which are of the same
type and dimension, each of their constituent components manufactured during the same production run from material
of the same cast and subjected to the same heat treatment process
4 List of significant hazards
This standard contains all the significant hazards, hazardous situations and events, as far as they have been dealt
with in this standard, identified by risk assessment as significant for this type of steel wire rope termination which
require action to eliminate or reduce the risk.
In particular hazards caused by accidental release of a load, or release of a load due to failure of an asymmetric
wedge socket puts at risk, either directly or indirectly, the safety or health of those persons within the hazard zone.
Errors in the fitting of accessories can also lead to premature failure and this standard contains dimensional
requirements to allow correct fit.
Table 1 contains those hazards that require action to reduce risk identified by risk assessment as being specific and
significant for asymmetric wedge sockets.
Table 1 — Hazards and associated requirements
Hazards identified in annex A of Relevant clause of annex A of Relevant clause/ subclause of
EN 1050:1996 EN ISO 12100-2:2003 this Part of EN .
1.1.5 Mechanical hazard due to 1.3.1 5
inadequacy of strength 4.1.2.3 5
4.1.2.4 5
4.2.4 7
4.3.2 7
1.3 Cutting or severing hazard 1.3.4 7
15 Errors of fitting 4.3.2 7
6
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r
SIST EN 13411-6:2004
EN 13411-6:2004 (E)
5 Safety requirements and/or measures
5.1 Geometry of wedge and socket body
Asymmetric wedge socket termination’s for ropes shall conform to the following geometrical criteria (see Figure 1):
-The longitudinal axis of the live portion of the rope shall be perpendicular to the longitudinal axis of the pin.
-The difference between the wedge angle (α) and the socket angle (β) shall be not greater than 2°.
-The internal side surfaces of the socket body and the wedge in contact with the rope shall be straight.
-The clamping length between socket body and the wedge in contact with the live portion of the rope shall
be a minimum length (P) equal to 4,3 times the nominal rope diameter.
-The rope groove in the socket body and the wedge shall not exhibit protrusions, marks or casting joints
that would affect the intimate contact with the rope.
2
β
1
Key
1 Socket body
2 Wedge
Figure 1 – Functional dimensions (pin and securing means not shown)
7
α
Ρ
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SIST EN 13411-6:2004
EN 13411-6:2004 (E)
5.2 Security of the pin
The pin shall be provided with a means for securing it in position when in operation.
5.3 Mechanical properties
5.3.1 Termination and wedge security
When tested in accordance with 6.2.2 the assembled and loaded termination, after initial settlement, shall during
the noted two minute period exhibit no further movement between the rope and the termination, monitored either as
movement of the tail of the rope, or as relative movement between the rope and the wedge.
After release of the specified load when tested in accordance with 6.2.2 no relative movement shall occur between
the wedge and socket body.
5.3.2 Manufacturing proof force and deformation test
When tested in accordance with 6.2.3 and 6.3.1, the socket body arms and pin shall show no sign of permanent
deformation.
5.3.3 Fatigue behaviour of the socket body and pin
When tested in accordance with 6.2.4 the socket body and pin shall not exhibit any indications of cracks after
75000 load cycles.
The socket shall also exhibit no sign of local permanent deformation in the pin eye holes.
5.3.4 Termination efficiency
When tested in accordance with 6.2.5 the efficiency of the assembled termination shall be at least 80% of the
minimum breaking force of the rope.
5.3.5 Low temperature properties
The materials of the socket, body and pin when tested in accordance with 6.2.6 shall posses minimum low
temperature ductility and toughness qualities at –20°C as follows:
Steel socket body and/or pin:
Minimum average Charpy impact value of 27 J, with no individual value less than 18 J.
Spheroidal graphite cast iron and any other cast irons: socket body:
Minimum average Charpy impact value of 12 J, with no individual value less than 9 J.
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SIST EN 13411-6:2004
EN 13411-6:2004 (E)
6 Verification of safety requirements
6.1 Qualifications of personnel
All testing and examination shall be carried out by a competent person.
6.2 Type testing
6.2.1 General
Two type tests shall be carried out for each requirement, in accordance with 6.2.2 to 6.2.5, on assembled
terminations of each design, material and method of manufacture, using the highest minimum breaking force of
rope for which the socket is designed.
If the four requirements tests are carried out using the same socket body, wedge and pin, they shall be conducted
in the order of termination and wedge security, deformation, fatigue and tensile efficiency testing, renewing the rope
as necessary.
The testing machine shall conform to the requirements of EN ISO 7500-1.
If the dimensional criteria or the chemical composition, or heat treatment of the socket body and pin are
subsequently varied outside the usual manufacturing tolerances, the type tests shall be repeated.
6.2.2 Termination and wedge security test
Subject the assembled termination to a load of 20% of the minimum breaking force of the rope, sustain this load for
an initial period to allow settlement of the termination, then continue to sustain for a further 2 min before removing
the load.
6.2.3 Deformation test
The termination shall be further loaded until this load reaches a value equal to 40% of the minimum breaking force
of the rope. The load shall then be removed, the termination dismantled and the socket body and pin examined for
permanent deformation.
6.2.4 Fatigue test
The test shall be carried out on an in-line tensile fatigue machine. The termination shall be prevented from rotating
and the test shall consist of the application of the cycle force from 15% to 30% of the minimum breaking force of
the rope along the rope axis for 75000 cycles.
The frequency of the force shall not exceed 5 Hz.
The component parts shall be submitted to either dye penetrant or magnetic particle inspection in accordance with
EN 1369 or EN 1371-1 both before and after the fatigue test to enable any crack initiation and propagation as a
result of fatigue to be readily identified.
NOTE More than one rope may be required to enable the socket body to achieve 75000 cycles.
6.2.5 Tensile efficiency test
Subject the assembled termination to an initial load of 60% of the minimum breaking force of the rope, then
increasing this load at a rate of not more than 0,5% of the breaking force per second. The test shall be continued
until either rope slip or breakage occurs.
If terminations are tested in pairs, the distance between the inner faces of the socket bodies shall be at least 30 d.
9
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SIST EN 13411-6:2004
EN 13411-6:2004 (E)
6.2.6 Charpy impact test
Charpy V-notch impact tests shall be carried out in accordance with EN 10045-1 on materials of socket bodies and
pins of all sizes.
Three samples shall be tested at a temperature of -20 °C.
For tests where the size of socket body is too small to provide a suitable test piece, tests may be carried out on
sample material which shall be of the same specification and heat treatment.
6.2.7 Acceptance criteria for type testing
6.2.7.1 Termination and wedge security, deformation, fatigue and efficiency tests
Should one sample fail these tests, and on examination it is found to be due to a material defect in the socket body
or pin, the manufacturing process shall be re-examined and amended to eliminate such defects. After which a
further two terminations of the same size, design and material content shall be tested. If these pass, then the
termination shall be deemed to have passed the type test.
If one or both fail the re-test, or one or both terminations fail the original tests due to its design, the terminations
shall be deemed to have failed the type test.
6.2.7.2 Charpy impact tests
If the average of the three test values and the three individual test values are equal to or greater than the values
specified in 5.3.5 the wedge socket of the size submitted for type testing shall be deemed to conform to this
European Standard.
If one sample fails to meet the specified individual value or if the average of the three individual values fails to meet
the specified average value, two further samples shall be taken and both shall pass the individual value test and
the average of the five samples shall pass the average test in order for the respective component of the size
submitted for type testing to be deemed to conform to this European Standard.
If two or three samples fail to meet the specified individual value, the respective component of the size submitted
for type testing shall be deemed not to conform to this European Standard.
6.3 Manufacturing tests
6.3.1 Manufacturing proof test
The socket body and pin shall be subjected to the manufacturing proof force equal to a
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