ISO-17657-4-2005.pdf
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1、 Reference number ISO 17657-4:2005(E) ISO 2005 INTERNATIONAL STANDARD ISO 17657-4 First edition 2005-09-15 Resistance welding Welding current measurement for resistance welding Part 4: Calibration system Soudage par rsistance Mesurage des courants en soudage par rsistance Partie 4: Systme dtalonnage
2、 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:31:55 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 17657-4:2005(E) PDF disclaimer This PDF fi
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5、reation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2005 All rights reserved. Un
6、less otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO
7、 copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2005 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=N
8、ASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:31:55 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 17657-4:2005(E) ISO 2005 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and definitio
9、ns. 1 4 Construction of calibration system 2 4.1 Reference welding current measuring system 2 4.2 Test set-up. 2 4.3 Basic feature for calibration of welding current measuring system. 2 4.4 Basic feature for calibration of current sensor . 4 4.5 Basic feature for calibration of welding current meter
10、 without sensor 5 5 Physical environment and operating conditions 6 6 Calibration requirements . 6 6.1 Reference welding current measuring system 6 6.2 Reference current sensor 6 6.3 Data acquisition device 7 6.4 Test stage and power sources 7 7 Test report . 7 7.1 Test report for calibration of wel
11、ding current measuring systems. 7 7.2 Test report for calibration of current sensors . 8 7.3 Test report for calibration of welding current meters without sensors 8 8 Test procedure 9 8.1 General. 9 8.2 Calibration of welding current measuring system 9 8.3 Calibration of current sensor 10 8.4 Calibr
12、ation of welding current meter without sensor. 10 8.5 Special calibration cases. 10 Annex A (informative) Measuring set-up . 12 Annex B (informative) Items to be recorded or filed as reference documentation for calibration 17 Annex C (informative) Examples of the test report in accordance with this
13、part of ISO 17657. 19 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:31:55 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 17657-4:2005(E) iv IS
14、O 2005 All rights reserved Foreword ISO (the International Organization 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
15、 in a subject for which a technical committee has been established 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 Comm
16、ission (IEC) on all matters of electrotechnical standardization. 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 technic
17、al committees are circulated to the member bodies for voting. 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 sha
18、ll not be held responsible for identifying any or all such patent rights. ISO 17657-4 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 curr
19、ent measurement for resistance welding: Part 1: Guidelines for 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 Copyright International Organization for Standardization
20、 Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:31:55 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 17657-4:2005(E) ISO 2005 All rights reserved v Introduction Requests for official interpretations o
21、f 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. Copyright International Organization for Standardization Provided by IHS under license with ISO Licen
22、see=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:31:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not f
23、or Resale, 04/12/2007 22:31:55 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 17657-4:2005(E) ISO 2005 All rights reserved 1 Resistance welding Welding current measurement for resistance welding Part 4: Calibration system 1 Scope This part of ISO
24、 17657 specifies calibration systems and calibration procedures for welding current measuring systems, current sensors, welding current meters and monitoring devices with current sensor used for measuring welding current in resistance welding with alternating current of 50 Hz or 60 Hz, or with direc
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