EN ISO 28881:2013

SLOVENSKI STANDARD
01-november-2013
1DGRPHãþD
SIST EN 12957:2002+A1:2009
Obdelovalni stroji - Varnost - Elektroerozijski stroji (EDM) (ISO 28881:2013)
Machine tools - Safety - Electro discharge machines (ISO 28881:2013)
Werkzeugmaschinen - Sicherheit - Funkenerodiermaschinen (ISO 28881:2013)
Machines-outils - Sécurité - Machines d'électro-érosion (ISO 28881:2013)
Ta slovenski standard je istoveten z: EN ISO 28881:2013
ICS:
25.120.40 Elektrokemijski stroji Electrochemical machines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 28881
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2013
ICS 25.080.01 Supersedes EN 12957:2001+A1:2009
English Version
Machine tools - Safety - Electro-discharge machines (ISO
28881:2013)
Machines-outils - Sécurité - Machines d'électro-érosion Werkzeugmaschinen - Sicherheit -
(ISO 28881:2013) Funkenerodiermaschinen (ISO 28881:2013)
This European Standard was approved by CEN on 14 March 2013.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 28881:2013: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC .4

Foreword
This document (EN ISO 28881:2013) has been prepared by Technical Committee ISO/TC 39 "Machine tools"
in collaboration with Technical Committee CEN/TC 143 “Machine tools - Safety” the secretariat of which is
held by SNV.
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 February 2014, and conflicting national standards shall be withdrawn
at the latest by February 2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12957:2001+A1:2009.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 28881:2013 has been approved by CEN as EN ISO 28881:2013 without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC
This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association to provide a means of conforming to Essential Requirements of the
New Approach Directive 2006/42/EC on machinery.
Once this standard is cited in the Official Journal of the European Union under that Directive and has been
implemented as a national standard in at least one Member State, compliance with the normative clauses of
this standard confers, within the limits of the scope of this standard, a presumption of conformity with the
relevant Essential Requirements of that Directive and associated EFTA regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling
within the scope of this standard.

INTERNATIONAL ISO
STANDARD 28881
First edition
2013-08-01
Machine tools — Safety — Electro-
discharge machines
Machines-outils — Sécurité — Machines d’électro-érosion
Reference number
ISO 28881:2013(E)
©
ISO 2013
ISO 28881:2013(E)
© ISO 2013
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.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO 28881:2013(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 3
4 List of significant hazards . 7
5 Safety requirements and/or protective measures . 9
5.1 General requirements . 9
5.2 Safety-related parts of control systems for EDM equipment and EDM systems .10
5.3 Operating modes .11
5.4 Stop functions .13
5.5 Specific requirements .14
6 Information for use .22
6.1 General .22
6.2 Marking, signs and written warnings .22
6.3 Instruction handbook .22
Annex A (informative) Examples and schematic diagrams .28
Annex B (normative) Noise-emission measurements .37
Annex C (informative) Fire protection codes for special regional cases .38
Annex D (informative) Guidelines for risk assessment on EDM equipment and EDM systems to
identify the required performance level and, if necessary, category .48
Bibliography .51
ISO 28881:2013(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.
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.
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.
ISO 28881 was prepared by Technical Committee ISO/TC 39, Machine tools, Subcommittee SC 10, Safety.
iv © ISO 2013 – All rights reserved

ISO 28881:2013(E)
Introduction
This International Standard has been prepared to be a Harmonized Standard to provide one means of
conforming to the Essential Safety Requirements of the Machinery Directive of the European Union and
associated EFTA regulations.
This document is a type-C standard as defined in ISO 12100:2010.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered
are indicated in the Scope of this International Standard. In addition, electro-discharge machining (EDM)
equipment and EDM systems are intended to be designed according to the principles of ISO 12100 for
hazards which are not dealt with in this International Standard.
When requirements of this type-C standard are different from those which are stated in type-A or
-B standards, the requirements of this type-C standard take precedence over the requirements of
other standards for machines that have been designed and built according to the requirements of this
type-C standard.
This International Standard defines performance level and safety categories of the safety-related parts
of the control system for EDM equipment and EDM systems as defined in ISO 13849-1:2006.
The requirements of this International Standard concern designers, manufacturers, suppliers and
importers of machines described in the Scope.
This International Standard also includes a list of informative items intended to be provided by the
manufacturer to the user.
INTERNATIONAL STANDARD ISO 28881:2013(E)
Machine tools — Safety — Electro-discharge machines
1 Scope
This International Standard specifies safety requirements and/or protective measures, applicable to
EDM equipment and EDM systems, such as
— manually controlled EDM die sinking or EDM drilling machines,
— numerically controlled EDM die sinking or EDM drilling machines, and
— numerically controlled EDM wire cutting machin
...