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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 10257-2:1998 The Eu
2、ropean Standard EN 10257-2:1998 has the status of a British Standard ICS 29.060.20; 77.140.65 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Zinc or zinc alloy coated non-alloy steel wire for armouring either power cables or telecommunication cables Part 2: Submarine cables L
3、icensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 03:52:59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 November 199
4、8 BSI 1998 ISBN 0 580 29849 3 BS EN 10257-2:1998 Amendments issued since publication Amd. No.DateText affected National foreword This British Standard is the English language version of EN 10257-2:1998. It supersedes BS 1441:1969, which is withdrawn. The UK participation in its preparation was entru
5、sted to Technical Committee ISE/26, Steel wire, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Eur
6、opean developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Stan
7、dards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for
8、their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover. Licensed Copy: sheffieldun sheffieldun, na, Thu Oc
9、t 26 03:52:59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved
10、worldwide for CEN national Members. Ref. No. EN 10257-2:1998 E EUROPEAN STANDARDEN 10257-2 NORME EUROPE ENNE EUROPA ISCHE NORM April 1998 ICS 77.140.65 Descriptors: wire, armatures, wire rope, ocean environments, galvanizing, zinc alloys, designation, base metal, mechanical properties, dimensions, d
11、imensional tolerances, inspection, tests English version Zinc or zinc alloy coated non-alloy steel wire for armouring either power cables or telecommunication cables Part 2: Submarine cables Files en acier non allie reve tu de zinc ou dalliage de zinc pour armure de ca bles destine s au transport de
12、 nergie ou aux te le communications Partie 2: Ca bles sous-marins Mit Zink oder Zinklegierung u berzogener unlegierter Stahldraht zur Bewehrung von Strom- und Fernmeldekabeln Teil 2: Unterseekabel This European Standard was approved by CEN on 25 March 1998. CEN members are bound to comply with the C
13、EN/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 t
14、o 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 version
15、s. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 0
16、3:52:59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 10257-2:1998 BSI 1998 Foreword This European Standard has been prepared by Technical Committee ECISS/TC 30, Steel wires, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, eith
17、er by publication of an identical text or by endorsement, at the latest by October 1998 and conflicting national standards shall be withdrawn at the latest by October 1998. This standard is in two parts. This Part 2 of the standard applies to wire for armouring submarine cables. Part 1 applies to wi
18、re for armouring land cables. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemb
19、ourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 4Information to be supplied by the purchaser3 5Designation3 6Manufacture4 7Requirements4 8Sampling and testing6 9Inspection and documentation6
20、10Methods of test6 11Packing and identification7 Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 03:52:59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 10257-2:1998 BSI 1998 1 Scope This part of this European Standard specifies requirements for the properties of non-alloy zinc or zinc
21、alloy coated steel wires used for the armouring of either submarine power or telecommunication cables in diameters ranging from 2,12 mm to 8,50 mm. The nominal wire diameters are specified in Tables 2, 3 and 4. 2 Normative references This European Standard incorporates by dated or undated reference,
22、 provisions from other publications. 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 i
23、n it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN 10016-1, Non-alloy steel rods for drawing and/or cold rolling Part 1: General requirements. EN 10016-2, Non-alloy steel rods for drawing and/or cold rolling Part 2: Specific requireme
24、nts for general purpose rod. EN 10016-3, Non-alloy steel rods for drawing and/or cold rolling Part 3: Specific requirements for rimmed or rimmed substitute low carbon steel rod. EN 10021, General technical delivery conditions for iron and steel products. EN 10204, Metallic products Types of inspecti
25、on documents. EN 10218-1, Steel wire and wire products General Part 1: Test methods. EN 10218-2, Steel wire and wire products General Part 2: Wire dimensions and tolerances. prEN 10244-1, Steel wire and wire products Non-ferrous metallic coatings on wire Part 1: General principles. prEN 10244-2, Ste
26、el wire and wire products Non-ferrous metallic coatings on wire Part 2: Zinc and zinc alloy coating. 3 Definitions For the purpose of this standard, the following definitions apply. 3.1 coil/reel/spool one continuous length of wire wound in approximately concentric rings 3.2 batch any quantity of fi
27、nished wire presented for examination and tested at any one time 4 Information to be supplied by the purchaser When ordering wire to this European Standard, the purchaser shall specify: a) the designation (see clause 5); b) if coating uniformity is to be measured; c) the quantity in appropriate unit
28、s; d) the unit weight of coils; e) instructions for strapping and packaging; f) if required, identity for traceability; g) surface condition (see clause 7.3); h) agreed quality characteristics (see clause 8); i) inspection document requirements. 5 Designation The steel wire for submarine cable shall
29、 be designated by: a) the number of this European Standard, i.e. EN 10257-2; b) the tensile strength grade; c) the nominal wire diameter; d) the wire coating type. EXAMPLE Wire for submarine cable to EN 10257-2, grade 85, 2,24 mm diameter, zinc coated to prEN 10244-2 class A: EN 10257-2 85 2,24 Zn p
30、rEN 10244-2 class A. Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 03:52:59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 10257-2:1998 BSI 1998 6 Manufacture 6.1 Non-alloy steel The steel wire shall be cold drawn from plain carbon steel rod produced to EN 10016-1, EN 10016-2 or EN 10
31、016-3 and be capable of achieving the physical properties required by this standard. The steel rod shall be capable of being satisfactorily butt welded. 6.2 Welds in coils For grades 34 and 65 only, one dressed weld per coil shall be allowed after drawing and before coating. Such a weld shall not be
32、 less than 100 m from either end of the coil. No weld shall be made after drawing on grades 85, 105, 125, 145 and 165. 7 Requirements 7.1 Mechanical properties 7.1.1 Tensile strength The tensile strength of the wires measured on the actual diameter shall be as given in Table 1 for the appropriate gr
33、ade. Table 1 Tensile strength of wire grades GradeTensile strength range N/mm2 34340 Rm# 540 65650 Rm# 850 85850 Rm# 1050 1051050 Rm# 1250 1251250 Rm# 1450 1451450 Rm# 1650 1651650 Rm# 1900 NOTE 1If other minima are ordered, a 200 N/mm2range shall apply. NOTE 2If tensile strength minima are ordered
34、other than those specified, and the tensile strength of the ordered grade is less than or equal to 100 N/mm2above the minimum tensile strength of the nearest lower specified grade, then the properties of that grade shall apply. If the minimum tensile strength of the required grade is more than 100 N
35、/mm2above the minimum tensile strength of the nearest lower specified grade, then the higher grade properties shall apply. 7.1.2 Elongation Elongation measured after fracture shall be not less than that given in Tables 2, 3 or 4 for the grade and diameter of wire being tested. 7.1.3 Torsion When tes
36、ted in accordance with 10.3.1, the wire shall withstand without breaking not less than the minimum number of turns given in Tables 2, 3 and 4 for the wire being tested. 7.1.4 Steel ductility wrap test When subjected to a steel ductility wrap test, test samples of grade 85, 105, 125, or 145 shall wit
37、hstand being closely wrapped by eight turns around their own diameter. A test sample of grade 165 shall withstand being closely wrapped around two times its own diameter. No sign of fracture of the base metal shall be evident. 7.2 Nominal diameters and tolerances The preferred nominal diameters of f
38、inished wire and the tolerances on diameter shall be as specified in Tables 2, 3 and 4, depending on the tensile grades. NOTEThe tolerances correspond to T1 of EN 10218-2 (Table 1). It is recognized that thick coatings, obtained in the hot dip process, may not be entirely free from surface irregular
39、ities, and, provided the latter do not go beyond the limits of good practice, (i.e. isolated and not of a repetitive nature), they shall not be a cause for rejection. Persistent lumpy galvanizing or bambooing shall be cause for rejection. Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 03:52:
40、59 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 10257-2:1998 BSI 1998 Table 2 Preferred nominal diameters, tolerances and mechanical properties of grade 34 steel wire Nominal wire diameterTolerance on diameterMinimum elongation on gauge length L0= 250 mm Torsion test minimum number of turns1
41、) mmmm% 3,35 0,07 1018 4,00 0,07 1015 4,25 0,08 1014 4,50 0,08 1013 4,75 0,08 1013 5,00 0,08 1012 5,30 0,09 1011 5,6 0,09 1011 6,0 0,09 1010 6,3 0,09 1010 6,7 0,10 109 7,1 0,10 108 7,5 0,10 108 8,0 0,10 108 8,5 0,12 107 1) Based on 40 turns in a length of 100 wire diameters. NOTE 1For intermediate s
42、izes, the properties to be achieved shall be those for the next larger size listed. NOTE 2Grade 34 steel wire may in time exhibit changes in mechanical properties after manufacture, particularly tensile strength and elongation. These changes result from a phenomenon known as strain ageing or strain
43、age hardening, and lead to an increase in tensile strength and a decrease in elongation, compared to the wire immediately after coating with zinc. It is customary to carry out tests immediately after manufacture. At ordinary temperatures, strain ageing may proceed slowly. Therefore, results of tests
44、 performed by the purchaser may be at variance with those reported by the supplier. Table 3 Preferred nominal diameters, tolerances and mechanical properties of grade 65 steel wire Nominal diameter Tolerance on diameter Minimum elongation on 250 mm gauge length Torsion test minimum number of turns1)
45、 mmmm% 2,65 0,06 512 3,35 0,07 610 4,25 0,08 68 5,00 0,08 67 1)Based on 23 turns in a length of 100 wire diameters. NOTEFor intermediate sizes, the properties to be achieved are those of the next larger size listed. Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 03:52:59 GMT+00:00 2006, Unco
46、ntrolled Copy, (c) BSI Page 6 EN 10257-2:1998 BSI 1998 Table 4 Preferred nominal diameters, tolerances and mechanical properties of grades 85, 105, 125, 145 and 165 steel wire Nominal wire diameter mm Tolerance on diameter mm Minimum elongation on 250 mm gauge length % Torsion test Grade Minimum num
47、ber of turns1) 85105125145165Grades 85 and 105 Grade 125Grade 145Grade 165 2,12 0,06 54,5432,516141210 2,24 0,06 54,5432,51513119 2,36 0,06 54,54,532,51513119 2,50 0,06 55532,51412108 2,65 0,06 5553,53131198 2,80 0,06 5553,53121197 3,15 0,07 5553,5311987 3,35 0,07 55543,510976 3,55 0,07 55543,510876
48、 4,00 0,08 555449764 5,00 0,08 555448654 5,30 0,09 557 6,00 0,09 556 1) Based on 23 turns in a length of 100 wire diameters for grades 85 and 105. Based on 20 turns in a length of 100 wire diameters for grade 125. Based on 17 turns in a length of 100 wire diameters for grade 145. Based on 14 turns i
49、n a length of 100 wire diameters for grade 165. NOTEFor intermediate sizes, the elongation value to be achieved shall be that of the next larger size listed. But the torsion values to be achieved shall be proportionally based on footnote 1) and rounded to the next lower figure. 7.3 Coating, adhesion and surface finish The wire shall be zinc or zinc alloy coated, either by the hot dip or the electrolytic process, in accordance with prEN 10244-2 (Table 1 and Table