ISO INTERNATIONAL STANDARD 17657-5 First edition 2005-09-15 Resistance welding Welding current measurement for resistance welding - Part 5: Verification of welding current measuring system Soudage par resistance-Mesurage des courants en soudage par resistance- Partie 5:Verificationdes systemes de mesuragedu courant de soudage Reference number ISO 17657-5:2005(E) @ISO2005 ISO17657-5:2005(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation @ISO2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, ISO's member body in the country of the requester. ISO copyright office Case postale 56: CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland !! IsO2005-All rightsreserved ISO 17657-5:2005(E) Contents Page Foreword Introduction 1 Scope 2 Normativereferences. 3 Termsand definitions 4 Test set-up... 5 Physicalenvironmentandoperatingconditions.. 6 Verificationreguirements 6.1 Masterweldingcurrentmeasuringsystem 6.2 Master (current sensing) coil.... 6.3 Weldingmachineusedforverification.. 7 Test report.. 8 Testprocedure AnnexA (informative)Items to be recorded or filed as reference documentation for verification... AnnexB (informative)Test reportforverificationof awelding currentmeasuringsystemin accordancewiththispartof Iso17657... ISO17657-5:2005(E) 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 International ElectrotechnicalCommission (IEC)onallmatters ofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 adopted by the technical 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 shall not be held responsible for identifying any or all such patent rights. ISO17657-5was prepared byTechnical CommitteeISO/TC44,Welding and alliedprocesses, Subcommittee SC 6, Resistance welding. IsO 17657 consists of the following parts, under the general title Resistance welding- Welding current measurementforresistance welding: Part1:Guidelinesformeasurement Part2:Weldingcurrentmeterwithcurrentsensingcoil Part 3:Current sensing coil Part 4:Calibration system Part5:Verificationofweldingcurrentmeasuringsystem ISO17657-5:2005(E) 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. ahts reserved INTERNATIONALSTANDARD ISO 17657-5:2005(E) Resistance welding Welding current measurement for resistance welding Part 5: Verification of welding current measuring system 1 Scope This part of IsO 17657 specifies a verification procedure for welding current meters and monitoring devices with current sensing coil, which are applied in measuring welding current in resistance welding using alternating current of 50 Hz or 60 Hz, or with direct current.