ISO 13766-2:2018

INTERNATIONAL ISO
STANDARD 13766-2
First edition
2018-04
Earth-moving and building
construction machinery —
Electromagnetic compatibility (EMC)
of machines with internal electrical
power supply —
Part 2:
Additional EMC requirements for
functional safety
Engins de terrassement et machines pour la construction des
bâtiments — Compatibilité électromagnétique (CEM) des machines
équipées de réseaux électriques de distribution interne —
Partie 2: Exigences CEM supplémentaires pour les fonctions de
sécurité
Reference number
©
ISO 2018
© ISO 2018
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Published in Switzerland
ii © ISO 2018 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 2
4 General principles . 3
5 EMC phenomena . 3
5.1 General . 3
5.1.1 Performance criteria for complete machines. 4
5.1.2 Performance criteria for safety-relevant ESA . 4
5.2 Immunity of machinery . 4
5.2.1 Immunity of machinery to radiated electromagnetic fields from off-board
sources . 4
5.2.2 Immunity to radiated electromagnetic fields from on-board sources . 5
5.2.3 Immunity to electrical transients on supply and other lines of machinery . 5
5.2.4 Immunity of machinery exposed to ESD . 5
5.3 Immunity of ESA . 5
5.3.1 Immunity of ESA to radiated electromagnetic fields from off-board sources . 5
5.3.2 Immunity of ESA to radiated electromagnetic fields by on-board sources . 6
5.3.3 Immunity of ESA to electrical transients on lines . 6
5.3.4 Immunity of ESA exposed to ESD . 6
6 Test report . 6
Annex A (informative) Installation and maintenance aspects. 7
Bibliography . 8
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 further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www .iso .org/iso/foreword .html.
The committee responsible for this document is ISO/TC 127, Earth-moving machinery, Subcommittee
SC 2, Safety, ergonomics and general requirements.
This first edition of ISO 13766-2:2018, together with ISO 13766-1:2018, cancels and replaces
ISO 13766:2006, of which it constitutes a technical revision and contains the following changes:
— the scope has been extended to specify building construction machinery as well as earth-moving
machinery;
— the provisions have been brought up to date with technological change;
— normative references have been updated to the latest editions.
A list of all parts in the ISO 13766 series can be found on the ISO website.
iv © ISO 2018 – All rights reserved

Introduction
This document is a type-C standard as stated in ISO 12100:2010.
This document is of relevance, in particular, for the following stakeholder groups representing the
market players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organisations, market surveillance etc.)
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events
are covered are indicated in the Scope of this document.
When requirements of this type-C standard are different from those which are stated in type-A or
type-B standards, the requirements of this type-C standard take precedence over the requirements of
the other standards for machines that have been designed and built according to the requirements of
this type-C standard.
With the increasing use of electronic devices in areas where earth-moving and construction machinery
operates, there is a need to ensure that the machinery is provided with adequate immunity to
electromagnetic disturbances. As more machinery is fitted with electrical and electronic devices,
it is also necessary to ensure that the internal electromagnetic interference caused by emissions of
subsystems of the machinery itself (machine disturbance) does not exceed the immunity of the
respective subsystems.
The electrical and high-frequency disturbances covered by this document refer to electromagnetic
effects caused due to technical appliances (man-made effects). These effects generally can be considered
as singular ones and additionally are located and restricted to defined narrowly defined areas.
While these effects on machinery cannot be considered as being general, their consequences on
machinery still need to be taken into account. They might be generated within a large frequency range
with different electrical characteristics or by conduction or radiation, and then imparted to other
electrical/electronic devices and systems by conduction or radiation. Narrowband, and sometimes
broadband, signals generated by sources of interference inside or outside the machinery can also be
coupled in electrical/electronic systems and influence the normal function of electrical/electronic
devices.
Electrostatic discharges are relevant to the machinery because control elements can be positioned
outside the operator station where potential differences could emerge at contact points. Conducted
transients in power supply wiring must be considered because the machinery can contain open systems,
in which several devices or components can be combined to complement machine functionality.
This document provides information on the kind and the level of effects as presently known. Indicative
test methods and criteria can derive from these values, given that possible test levels acceptable for
the machinery and, in the case of testing conducted on a voluntary basis, considering the unique
characteristics and operating parameters of the machinery. However, the functions of the machinery
are not evaluated by testing alone. Functional safety with respect to EMC phenomena can also be
achieved by organizational measures on the job site where the machinery is located and in use.
Because the machinery has a number of systems that consist of components that can be used on a variety
of machine types, the approach of defining electrical/electronic sub-assemblies (ESA) or separate
ESAs for these components is applied for the immunity and emissions test methods. This allows these
components to be evaluated by the test method in existing laboratory facilities consisting of specially
equipped shielded rooms. When electrical/electronic sub-assembly tests are conducted, it is necessary
to consider any additional effects imparted by wiring systems used to connect the sub-assemblies into
the machinery. The tests can also be conducted on the machinery.
Programmable electronic systems (PES) as defined in ISO 13849-1:2015 and intended for use as
a safety-related part of a machine control system (SRP/CS) as defined in ISO 15998:2008 have a
specification of intended functionality. If a disturbed function will become dangerous or not is
sometimes unknown to the manufacturer of the PES because it depends on the future application in a
safety-related system of the whole machine.
Testing according to this document is required to be performed so that the behaviour of the PES in that
safety-related system can be demonstrated.
vi © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 13766-2:2018(E)
Earth-moving and building construction machinery —
Electromagnetic compatibility (EMC) of machines with
internal electrical power supply —
Part 2:
Additional EMC requirements for functional safety
1 Scope
This document provides test methods and acceptance criteria for the evaluation of the electromagnetic
compatibility (EMC) of earth-moving machinery, as defined in ISO 6165:2012, and of the following
building construction machinery as classified in ISO/TR 12603:2010:
— drilling and foundation equipment;
— equipment used for the preparation, conveyance and compaction of concrete, mortar and processing
reinforcement;
— road construction and maintenance machinery and equipment.
It deals with EMC requirements related to the functional safety of the machinery, its electrical/
electronic subassemblies (ESA) and of separate ESA.
This document is relevant only to the safety-related parts of control systems (SRP/CS) as defined in
ISO 13849-1:2015 using electrical/electronic components which meet design requirements equal to or
greater than safety-related performance level PL b as defined in ISO 13849-1:2015. It also deals with
electrical and electronic components or separate ESA intended to be fitted on
...