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1、a Date: 25 November 2008 Origin: European Latest date for receipt of comments: 28 February 2009 Project no.: 2008/02940 Responsible committee: ISE/26 Steel wire Interested committees: Title: Draft BS EN 10257-1 Zinc or zinc alloy coated non-alloy steel wire for armouring either power cables or telec
2、ommunication cables Part 1: Land cables Supersession information: If this document is published as a standard, the UK implementation of it will supersede BSEN10257-1 : 1998 and partially supersede. NONE If you are aware of a current national standard which may be affected, please notify the secretar
3、y (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 28 February 2009. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledge
4、ment will normally be sent. See overleaf for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating organization for briefing purposes. Electr
5、onic circulation is limited to dissemination by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email . British, International and foreign standards are also available from BSI Customer Ser
6、vices. Information on the co-operating organizations represented on the committees referenced above may be obtained from the responsible committee secretary. Cross-references The British Standards which implement International or European publications referred to in this draft may be found via the B
7、ritish Standards Online Service on the BSI web site http:/. Direct tel: 020 8996 7009 Responsible Committee Secretary: Committee Service Centre (BSI) E-mail: Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Versi
8、on 8.0 DPC: 08/30189625 DC Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:06, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on European discussions in which the UK has taken an active part. Your comments on this draft are welcome and will a
9、ssist in the preparation of the consequent British Standard. Comment is particularly welcome on national, legislative or similar deviations that may be necessary. Even if this draft standard is not approved by the UK, if it receives the necessary support in Europe, the UK will be obliged to publish
10、the official English Language text unchanged as a British Standard and to withdraw any conflicting standard. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft. Submission The guidance given below is intended to ensure that all
11、comments receive efficient and appropriate attention by the responsible BSI committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should
12、be compatible with Version 6.0 or Version 97 of Microsoft Word for Windows, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirements. All comments submitted should be presented as given in the exam
13、ple below. Further information on submitting comments and how to obtain a blank electronic version of a comment form are available from the BSI web site at: http:/ Template for comments and secretariat observations Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause
14、 No./ Annex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justification for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that th
15、e mains connector to which no connection . 6.4 Paragraph 2 te The use of the UV photometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a tradema
16、rk of Microsoft Corporation. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:06, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM DRAFT prEN 10257-1 November 2008 ICS 77.140.70Will supersede EN 10257-1:1998 English Version Zinc or zinc al
17、loy coated non-alloy steel wire for armouring either power cables or telecommunication cables - Part 1: Land cables Fils en acier non alli revtus de zinc ou dalliage de zinc pour larmure des cbles destins au transport dnergie ou aux tlcommunications - Partie 1: Cbles terrestres Mit Zink oder Zinkleg
18、ierung berzogener unlegierter Stahldraht zur Bewehrung von Strom- und Fernmeldekabeln- - Teil 1: Erdverlegte Kabel This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ECISS/TC 30. If this draft becomes a European Standard, CEN members
19、 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 versio
20、n 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. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denm
21、ark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Recipients of this draft are invited to submit, with their commen
22、ts, 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. E
23、UROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. prEN 10257-1:2008: E Licens
24、ed Copy: London South Bank University, South Bank University, 31/01/2009 04:06, Uncontrolled Copy, (c) BSI prEN 10257-1:2008 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 Information to be supplied by the purchaser .5 5 Designation 5 6 Manufacture5 7 Re
25、quirements.6 8 Sampling and testing 8 9 Inspection and documentation.8 10 Methods of tests 8 11 Packing and identification9 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:06, Uncontrolled Copy, (c) BSI prEN 10257-1:2008 (E) 3 Foreword This document (prEN 10257-1:20
26、08) has been prepared by Technical Committee ECISS/TC 30 “Steel wires”, the secretariat of which is held by AFNOR. This document is currently submitted to the CEN Enquiry. This document will supersede EN 10257-1:1998. The Standard will comprise the following parts: Part 1: Land cables Part 2: Submar
27、ine cables Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:06, Uncontrolled Copy, (c) BSI prEN 10257-1:2008 (E) 4 1 Scope This Part of this European Standard specifies requirements for the properties of non-alloy carbon zinc or zinc alloy coated steel wire used prim
28、arily for the armouring of either subterranean land power or telecommunication cables. 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
29、 the referenced document (including any amendments) applies. EN 10016-1, Non alloy steel rod for drawing and/or cold rolling Part 1: General requirements. EN 10016-2, Non-alloy steel rod for drawing and/or cold rolling Part 2: Specific requirements for general purposes rod. EN 10016-3, Non-alloy ste
30、el rods for drawing and/or cold rolling Part 3: Specific requirements for rimmed or rimmed substitute for low carbon steel rod. EN 10021, General technical delivery requirements for steel products. EN 10204, Metallic products Types of inspection documents. EN 10218-1, Steel wire and wire products Ge
31、neral Part 1: Test methods. EN 10218-2, Steel wire and wire products General Part 2: Wire dimensions and tolerances. EN 10244-1, Steel wire and wire products Non-ferrous metallic coatings on steel wire Part 1: General principles. EN 10244-2, Steel wire and wire products Non-ferrous metallic coatings
32、 on steel wire Part 2: Zinc or zinc alloy coatings. IEC 60468, Method of measurement of resistivity of metallic materials. IEC 60502-1, Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) Part 1: Cables for rated voltages of
33、 1 kV (Um = 1,2 kV) and 3 kV (Um = 3,6 kV). IEC 60502-2, Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) - Part 2: Cables for rated voltages from 6 kV (Um = 7,2 kV) up to 30 kV (Um = 36 kV). 3 Terms and definitions For t
34、he purposes of this document, the following terms and definitions apply. 3.1 coil/reel/spool one continuous length of wire wound in approximately concentric rings 3.2 batch any quantity of finished wire presented for examination and tested at any one time Licensed Copy: London South Bank University,
35、 South Bank University, 31/01/2009 04:06, Uncontrolled Copy, (c) BSI prEN 10257-1:2008 (E) 5 4 Information to be supplied by the purchaser When ordering wire to this European Standard, the purchaser shall specify: a) designation (see Clause 5); b) quantity in appropriate units; c) unit weight of coi
36、ls (kg); d) instructions for strapping and packaging; e) surface condition (see Clause 7.3); f) agreed quality characteristics (see Clause 8); g) inspection document requirements. And if required: h) coating uniformity; i) electrical resistance; j) identity for traceability; 5 Designation The steel
37、wire for land cable shall be designated by: a) number of this European Standard i.e. EN 10257-1; b) nominal wire diameter; c) wire coating type to EN 10244-2. EXAMPLE Steel wire for land cable to EN 10257-1, of nominal wire diameter of 0,45 mm, zinc coated to EN 10244-2 class A. EN 10257-1-0,45 - Zn
38、 - EN 10244-2 class A. 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 10016-3 and capable of achieving the physical properties required by this standard. The steel rod shall be capable of being satisfactorily
39、butt welded. 6.2 Welds in coils The coils as delivered, shall contain no joints other than properly dressed welds i.e. the original wire diameter shall be retained. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:06, Uncontrolled Copy, (c) BSI prEN 10257-1:2008 (E)
40、6 7 Requirements 7.1 Mechanical properties 7.1.1 Tensile strength and elongation The tensile strength and elongation of the wires shall be in accordance with Table 1. The variation within one batch shall not be more than 150 N/mm2. Table 1 Mechanical properties Nominal wire diameter Tensile strength
41、 Elongation after fracture mm N/mm2 % d 0,70 320 to 500 7,5 0,70 0,90 340 to 500 10,0 7.1.2 Torsion The wire shall withstand without breaking, not less than the minimum number of turns given in Table 2. These minima are based on 40 turns in a gauge length of 100 d, where d is greater than 0,71 and l
42、ess than or equal to 4,00 mm, and on 27 turns in 100 d for sizes equal or smaller than 0,71 mm where d is the wire diameter. Table 2 Minimum number of turns to fracture Nominal wire diameter Gauge length Minimum number of turns mm mm 0,30 50 45 0,45 75 45 0,71 75 42 0,90 75 33 1,25 75 24 1,60 150 37
43、 2,00 150 30 2,50 150 24 3,15 150 19 4,00 150 15 7.2 Nominal diameter and tolerances The preferred nominal diameters of finished wire and the tolerances on diameter are given in Table 3. Other diameters may be used, e.g. those specified in IEC 60502-1 or in IEC 60502-2. NOTE The tolerances correspon
44、d to T1 of EN 10218-2 (Table 1). Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:06, Uncontrolled Copy, (c) BSI prEN 10257-1:2008 (E) 7 It is recognised that thick coatings, obtained in the hot dip process, may not be entirely free from surface irregularities, and,
45、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. Table 3 Nominal diameters and tolerances Nominal wire diameter Tolerance o
46、n diameter mm mm 0,30 0,025 0,45 0,025 0,71 0,030 0,90 0,035 1,25 0,040 1,60 0,045 2,00 0,050 2,50 0,060 3,15 0,070 4,00 0,070 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 EN 10244-2 (Table
47、1 and Table 2), class A. The coating shall conform to the adherence test of EN 10244-1 and EN 10244-2. If required, the uniformity shall conform to EN 10244-2. NOTE 1 The finished wire should be free from any defects likely to cause breakages in subsequent manufacturing processes or service, or like
48、ly to adversely affect the finished cables. The wire is usually supplied as zinc or zinc alloy coated. Additionally further coatings with a special finish (e.g. wax or surface compatible with bitumen), may be supplied by agreement between manufacturer and customer. NOTE 2 Where the design of the cab
49、le allows, as specified in the relevant cable product standard, other zinc or zinc alloy classes may be specified. 7.4 Electrical resistance Where requested, the electrical resistance of the armour shall be determined. This result, expressed in ohm per kilometre of wire, shall not exceed the appropriate value given in Table 4. If the d.c. resistance of the coated wire is measured