08-30189610-DC.pdf
a Date: 25 November 2008 Origin: European Latest date for receipt of comments: 28 February 2009 Project no.: 2008/02935 Responsible committee: ISE/26 Steel wire Interested committees: Title: Draft BS EN 10223-4 Steel wire and wire products for fences Part 4: Steel wire welded mesh fencing Supersession information: If this document is published as a standard, the UK implementation of it will supersede BSEN10223-4 : 1998 and partially supersede. NONE If you are aware of a current national standard which may be affected, please notify the secretary (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 acknowledgement will normally be sent. See overleaf for information on commenting. 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Direct tel: 020 8996 7009 Responsible Committee Secretary: Committee Service Centre (BSI) E-mail: cscbsigroup.com 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 Version 8.0 DPC: 08/30189610 DC Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:08, 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 assist 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 the official English Language text unchanged as a British Standard and to withdraw any conflicting standard. 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Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:08, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM DRAFT prEN 10223-4 November 2008 ICS 77.140.65 English Version Steel wire and wire products for fences - Part 4: Steel wire welded mesh fencing Fils et produits tréfilés en acier pour clôtures - Partie 4: Grillage en acier soudé Stahldraht und Erzeugnisse aus Stahldraht für Zäune - Teil 4: Geschweißte Gitter aus Stahldraht für Zäune 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 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, 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 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 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 10223-4:2008: E Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:08, Uncontrolled Copy, (c) BSI prEN 10223-4:2008 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 Information to be supplied by the purchaser .6 5 Manufacture6 5.1 Base metal6 5.2 Fabrication6 5.2.1 Rolls 6 5.2.2 Panels .7 5.3 Welding.7 6 Requirements.7 6.1 Tensile strength.7 6.2 Tolerance on wire diameters 7 6.3 Coatings7 6.3.1 Zinc and zinc/alloy coatings.7 6.3.2 Organic material coatings.8 6.4 Tolerance on mesh dimensions.8 6.5 Weld shear strength 8 7 Sampling and testing 8 8 Inspection documentation8 9 Methods of test 9 9.1 Tensile test.9 9.2 Wire dimension9 9.3 Weld shear strength 9 9.4 Coating tests9 9.4.1 Zinc or zinc alloy coating of wire before welding.9 9.4.2 Welded mesh which is zinc or zinc alloy coated after welding 9 9.4.3 Hot dip zinc or zinc alloy coating by a batch process (panels)9 9.4.4 Coated with organic material after fabrication .9 10 Packaging.9 Annex A (normative) Weld shear strength test method (welded mesh)10 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:08, Uncontrolled Copy, (c) BSI prEN 10223-4:2008 (E) 3 Foreword This document (prEN 10223-4:2008) 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 10223-4:1998. The Standard will comprise the following parts: Part 1: Zinc and zinc alloy coated steel barbed wire Part 2: Hexagonal steel wire netting for agricultural, insulation and fencing purposes Part 3: Hexagonal steel wire mesh products for engineering purposes Part 4: Steel wire welded mesh fencing Part 5: Steel wire woven hinged joint and knotted mesh fencing Part 6: Steel wire chain link fencing Part 7: Steel wire welded panels for fencing Part 8: Welded mesh gabion products Annex A is normative. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:08, Uncontrolled Copy, (c) BSI prEN 10223-4:2008 (E) 4 1 Scope This Part of this European Standard specifies requirements for steel wire welded mesh fencing of which there are many types for a variety of applications. It specifies the general characteristics of welded mesh fencing supplied as rolls or panels and coatings, properties and tolerances. The standard covers only orthogonal welded mesh i.e. wire welded at right angles to one another. For welded mesh fencing made from panels the specification covers only panels made from wires not greater than 10 mm. 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 ISO 1461, Hot dip galvanized coatings on fabricated iron or steel articles Specifications and test methods (ISO 1461:1999). 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 General 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 on steel wire Part 2: Zinc and zinc alloy coatings. EN 10245-1, Steel wire and wire products Organic coatings on wire Part 1: General rules. EN 10245-2, Steel wire and wire products Organic coatings on wire Part 2: PVC finished wire. EN 10245-3, Steel wire and wire products Organic coatings on wire Part 3: PE coated wire. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 welded mesh fencing fencing made by electrical resistance welding either: a) zinc-coated or zinc alloy coated wires; or b) bright wires which are subsequently coated after welding either with zinc or zinc alloy. In both cases, the wire may or may not be crimped. The welded mesh may or may not be subsequently coated with an organic material. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:08, Uncontrolled Copy, (c) BSI prEN 10223-4:2008 (E) 5 3.2 spacing distance measured between leading edge and leading edge of wires (see Figure 1) 3.3 mesh size spacing of line wires followed by the spacing of cross wire e.g. for 50 mm line wire spacing and 25 mm cross wire spacing the mesh size is 50 x 25 3.4 line wires wires running in the longitudinal direction parallel with the length of the roll or panel (See Figure 1) 3.5 cross wires wires running in the transverse direction (See Figure 1) NOTE On erection of the fence, the cross wires become vertical. 3.6 panel welded mesh produced in flat form to specified dimensions or cut from rolls of welded mesh. Panels are produced either with overhanging edges or with flush cut edges Key 1 Cross wires 2 Line wire spacing 3 Cross wire spring 4 Line wires Figure 1 Example of mesh Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:08, Uncontrolled Copy, (c) BSI prEN 10223-4:2008 (E) 6 4 Information to be supplied by the purchaser The following information shall be supplied by the purchaser at the time of enquiry and order: a) number of this European Standard; b) quantity and packaging; c) if for agricultural use or not; d) roll or panel; e) mesh size(s); f) diameters of line and cross wires; g) length and width of rolls or size of panels; h) the class of zinc or zinc/alloy coating and whether applied before or after manufacture and if required, the adherence and assessment of adherence (wrap specification); i) whether an organic material coating is required and, if so, the type and colour; j) tensile strength of line wires and cross wires if different from each other; k) whether or not crimping is required in line or cross wires; l) if applicable, the number of apertures required; m) in the case of panels, whether to be produced with overhangs or cut flush; n) inspection documentation requirements; o) agreed quality characteristics for testing (see clause 7). 5 Manufacture 5.1 Base metal The base metal of the welded mesh fencing shall be low carbon steel. 5.2 Fabrication 5.2.1 Rolls The welded mesh fencing in roll shall be fabricated by electrical resistance welding either from: a) bright wires which subsequently after welding are either zinc or zinc alloy coated to EN 10244-1 and EN 10244-2 class A; or b) zinc or zinc alloy wire coated to EN 10244-1 and EN 10244-2 class A, unless otherwise agreed at the time of enquiry and order. Where requested by the purchaser the welded mesh fencing shall be subsequently coated with an organic material to EN 10245-1 and EN 10245-2 or EN 10245-3. The type and colour and any other criteria shall be given on the order. Licensed Copy: London South Bank University, South Bank University, 31/01/2009 04:08, Uncontrolled Copy, (c) BSI prEN 10223-4:2008 (E) 7 5.2.2 Panels Panels shall be produced by either: a) cutting from zinc or zinc alloy coated rolls; or b) by electrical resistance welded bright wires and subsequently zinc or zinc alloy coated to EN ISO 1461. No bare patches shall be permitted. When requested by the purchaser the welded mesh fencing shall be subsequently coated with an organic material to EN 10245-1 and EN 10245-2 or EN 10245-3. The type and colour and any other criteria shall be given on the order. 5.3 Welding The mesh shall be produced by electrical resistance welding at every line wire/cross wire intersection. NOTE 1 The line and/or cross wires may be crimped. NOTE 2 Depending on the application, the mesh spacing throughout the fencing may be the same, as in 50 x 50 security mesh or varying as in the welded mesh fencing for agricultural or general use i.e. decreasing mesh size from the top downwards. The diameter of line wires may be different from the diameter of cross wires. 6 Requirements 6.1 Tensile str
