EN ISO 10656:2021

SLOVENSKI STANDARD
01-marec-2021
Oprema za uporovno varjenje - Transformatorji - Integrirani transformatorji za
varilne klešče (ISO 10656:2016)
Resistance welding Equipment - Transformers - Integrated transformers for welding guns
(ISO 10656:2016)
Widerstandsschweißeinrichtungen - Transformatoren - Integrierte Transformatoren für
Schweißzangen (ISO 10656:2016)
Matériel de soudage par résistance - Transformateurs - Transformateurs incorporés pour
pinces à souder (ISO 10656:2016)
Ta slovenski standard je istoveten z: EN ISO 10656:2021
ICS:
25.160.30 Varilna oprema Welding equipment
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 10656
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2021
EUROPÄISCHE NORM
ICS 25.160.30; 29.180
English Version
Resistance welding equipment - Transformers - Integrated
transformers for welding guns (ISO 10656:2016)
Matériel de soudage par résistance - Transformateurs - Widerstandsschweißeinrichtungen - Transformatoren
Transformateurs incorporés pour pinces à souder (ISO - Integrierte Transformatoren für Schweißzangen (ISO
10656:2016) 10656:2016)
This European Standard was approved by CEN on 6 December 2020.

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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10656:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 10656:2016 has been prepared by Technical Committee ISO/TC 44 "Welding and allied
processes” of the International Organization for Standardization (ISO) and has been taken over as
of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by July 2021, and conflicting national standards shall be
withdrawn at the latest by July 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 10656:2016 has been approved by CEN as EN ISO 10656:2021 without any modification.

INTERNATIONAL ISO
STANDARD 10656
Second edition
2016-05-01
Corrected version
2016-08-15
Resistance welding equipment —
Transformers — Integrated
transformers for welding guns
Matériel de soudage par résistance — Transformateurs —
Transformateurs incorporés pour pinces à souder
Reference number
ISO 10656:2016(E)
©
ISO 2016
ISO 10656:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
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ii © ISO 2016 – All rights reserved

ISO 10656:2016(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Dimensions and characteristics of transformers . 1
4 Additional equipment . 6
4.1 Grounding provision . 6
4.2 Thermal protection . 6
4.3 Output current sensing coil . 6
5 Marking . 7
5.1 General . 7
5.2 Rating plate . 7
5.3 Colour of exterior finish . 7
6 Designation . 8
7 Test conditions . 8
7.1 Type tests . 8
7.1.1 Mechanical strength . 8
7.1.2 Dynamic behaviour of the output terminals . 8
7.2 Thermal test (type test) . 9
Annex A (informative) Secondary current and duty cycle .10
Bibliography .11
ISO 10656:2016(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 technical committees. Each member body interested 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 Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its fur
...