BS-ISO-17657-3-2005.pdf
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1、BRITISH STANDARD BS ISO 17657-3:2005 Resistance welding Welding current measurement for resistance welding Part 3: Current sensing coil ICS 25.160.10 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 17657-3:2005 This British Standard
2、 was published under the authority of the Standards Policy and Strategy Committee on 17 January 2006 BSI 17 January 2006 ISBN 0 580 47016 4 National foreword This British Standard reproduces verbatim ISO 17657-3:2005 and implements it as the UK national standard. The UK participation in its preparat
3、ion was entrusted to Technical Committee WEE/29, Resistance welding, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in th
4、is document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a co
5、ntract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals
6、 for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 17 and a back cover. The BSI
7、copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 17657-3:2005(E) INTERNATI
8、ONAL STANDARD ISO 17657-3 First edition 2005-09-15 Resistance welding Welding current measurement for resistance welding Part 3: Current sensing coil Soudage par rsistance Mesurage des courants en soudage par rsistance Partie 3: Tore de mesure de courant BS ISO 17657-3:2005 Licensed Copy: sheffieldu
9、n sheffieldun, na, Sun Nov 26 11:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions.
10、1 4 Physical environment and operating conditions 2 5 Classification of current sensing coils and designation of product. 2 5.1 Class of current sensing coils. 2 5.2 Standard values of the conversion coefficient 2 5.3 Designation of products. 3 6 Requirements for current sensing coils. 3 6.1 Current
11、 sensing coil and connecting lead. 3 6.2 Conversion coefficient. 3 6.3 Measuring accuracy . 4 6.4 Mechanical strength. 4 6.5 Setting position error . 4 6.6 Influence of ambient temperature. 4 6.7 Thermal property of cover materials 4 6.8 Test. 4 7 Test procedures 5 7.1 Conversion coefficient. 5 7.2
12、Measuring accuracy . 6 7.3 Mechanical tests. 6 7.4 Setting position error test 8 7.5 Thermal test. 8 7.6 Contact test . 8 8 Marking 8 Annex A (informative) Design of current sensing coils . 9 Annex B (informative) Governing parameters of the conversion coefficient 12 Annex C (informative) Type of cu
13、rrent sensing coils and their recommended specification range. 13 Annex D (informative) Frequency response of current sensing coils 17 BS ISO 17657-3:2005 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv Foreword ISO (the International Org
14、anization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been establi
15、shed has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardizatio
16、n. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
17、Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such pat
18、ent rights. ISO 17657-3 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 6, Resistance welding. ISO 17657 consists of the following parts, under the general title Resistance welding Welding current measurement for resistance welding: Part 1: Guidelines for
19、 measurement Part 2: Welding current meter with current sensing coil Part 3: Current sensing coil Part 4: Calibration system Part 5: Verification of welding current measuring system BS ISO 17657-3:2005 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:39:39 GMT+00:00 2006, Uncontrolled Copy,
20、 (c) BSI v Introduction Requests for official interpretations of any aspect of this part of ISO 17657 should be directed to the Secretariat of ISO/TC 44/SC 6 via your national standards body. A complete listing of these bodies can be found at http:/www.iso.org. BS ISO 17657-3:2005 Licensed Copy: she
21、ffieldun sheffieldun, na, Sun Nov 26 11:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Resistance welding Welding current measurement for resistance welding Part 3: Current sensing co
22、il 1 Scope This part of ISO 17657 specifies current sensing coils of the toroidal-coil type as a current sensor for welding current meters or a welding current measuring system used to monitor the welding current in resistance welding, and is applicable for both current types, i.e. alternating curre
23、nt of 50 Hz or 60 Hz and direct current. 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 amendm
24、ents) applies. ISO 669, Resistance welding Resistance welding equipment Mechanical and electrical requirements ISO 17657-4, Resistance welding Welding current measurement for resistance welding Part 4: Calibration system 3 Terms and definitions For the purposes of this document, the terms and defini
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