EN 12385-4 PDF

Heavy Pedestal Cranes Stranded ropes for general lifting applications C? Stranded ropes for general lifting applications includes Amendment A1: The minimum breaking force for ropes with independent wire rope cores IWRC shall be based on factor K2. Relationship een this European Standard and the Essential! Need more than one copy? Mesh and Mesh Constructions.

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English price group 14 www. Clause 5 of this standard includes safety requirements. Annexes A and B are normative. Annexes C and D are informative. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.

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 Management Centre has the same status as the official versions. Relationship between this European Standard and the Essential!

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of an identical text or by endorsement, at the latest by September , and conflicting national standards shall be withdrawn at the latest by September This document supersedes EN The start and finish of text introduced or altered by amendment is indicated in the text by tags!

The modifications of the related CEN Corrigendum have been implemented at the appropriate places in the text and are indicated by the tags? The other Parts of EN are: Part 1: General requirements Part 2: Definitions, designation and classification Part 3: Information for use and maintenance Part 5: Stranded ropes for lifts Part 6: Stranded ropes for mine shafts Part 7: Locked coil ropes for mine shafts Part 8: Stranded hauling and carrying-hauling ropes for cableway installations designed to carry persons Part 9: Locked coil carrying ropes for cableway installations designed to carry persons Part Spiral ropes for general structural applications Part 1 provides the general requirements of Parts 4 to For the purposes of the Certificate referred to in clause 7, this Part assumes a working load limit based on a safety factor of 5.

The safety factor and the required minimum breaking force of the rope for a given application is the responsibility of the manufacturer of the machine of which the rope forms a part.

During the preparation of this standard, it was assumed that a negotiation would take place between the purchaser and the manufacturer concerning the intended purpose of the rope. Although tables of breaking forces and masses are provided for a number of the more common classes, diameters and rope grades, this Part of this standard is not limited to those given, providing all of the other requirements are met.

Specifiers, purchasers and users should recognise that some ropes are specially designed by the manufacturer to meet particular lifting machinery requirements. The particular hazards covered by this Part are identified in Clause 4. This Part of this European Standard does not establish requirements for information for use other than those given in clause 7 of Part 1.

Neither does it cover the requirements for ropes fitted with terminations. Minimum breaking force values for the more common classes, sizes and grades of rope are provided in tables 5 to These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision.

For undated references the latest edition of the publication referred to applies including amendments. EN , Steel wire and wire products — Steel wire for ropes — Part 2: Cold drawn non-alloyed steel wire for ropes for general applications.

For those ropes where a rope grade is applicable, e. Tables 5 to 16, the tensile strength grades of the wires shall be subject to the limits given in Table 2. For those ropes where a rope grade is not applicable, e. NOTE Ropes larger than 60mm diameter may not have a rope grade. For ropes with diameters from 2 mm to 5 mm inclusive, the tolerance shall be rounded up to the nearest 0,05 mm.

The values of minimum breaking force for the more common classes and grades of ropes shall be not less than those given in Tables 5 to For intermediate rope diameters, the values shall be not less than those obtained using the formula in annex A with the factors given in annex B.

The values of minimum breaking force for large diameter ropes are given in Table For intermediate rope diameters, the values shall be not less than those obtained using the formula in annex A. NOTE Refer to the definitions given in EN for derivation of the formula for calculation of minimum breaking force. The values given in columns 5 and 7 are based on ropes with independent wire rope cores IWRC. The minimum breaking force for ropes with independent wire rope cores IWRC shall be based on factor K2.

Table B. EN ; b quantity and length; c nominal diameter; d rope class or construction; e core type; f rope grade; g wire finish; h lay direction and type; NOTE Single layer ropes are normally manufactured right hand ordinary lay unless otherwise stated by the purchaser.

The purchaser should specify any particular preformation requirements. The purchaser should specify any particular lubrication requirements. Once this standard is cited in the Official Journal of the European Communities under that Directive and has been implemented as a national standard in at least one Member State, compliance with the normative clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the relevant Essential Requirements of that Directive and associated EFTA regulations.

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