SIST EN IEC 61111:2026

SLOVENSKI STANDARD
01-december-2026
Nadomešča:
SIST EN 61111:2009
Delo pod napetostjo - Podloge iz izolacijskega materiala za uporabo v
elektrotehniki (IEC 61111:2026)
Live working - Electrical insulating matting (IEC 61111:2026)
Arbeiten unter Spannung - Elektrisch isolierende Matten (IEC 61111:2026)
Travaux sous tension - Tapis isolants électriques (IEC 61111:2026)
Ta slovenski standard je istoveten z: EN IEC 61111:2026
ICS:
13.260 Varstvo pred električnim Protection against electric
udarom. Delo pod napetostjo shock. Live working
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61111

NORME EUROPÉENNE
EUROPÄISCHE NORM October 2026
ICS 13.260; 29.240.20; 29.260.99 Supersedes EN 61111:2009
English Version
Live working - Electrical insulating matting
(IEC 61111:2026)
Travaux sous tension - Tapis isolants électriques Arbeiten unter Spannung - Elektrisch isolierende Matten
(IEC 61111:2026) (IEC 61111:2026)
This European Standard was approved by CENELEC on 2026-10-09. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61111:2026 E
European foreword
The text of document 78/1559/FDIS, future edition 3 of IEC 61111, prepared by TC 78 "Live working"
was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-10-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-10-31
document have to be withdrawn
This document supersedes EN 61111:2009 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61111:2026 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60743 NOTE Approved as EN 60743
IEC 61112 NOTE Approved as EN 61112
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60060-1 - High-voltage test techniques - Part 1: EN IEC 60060-1 -
General terminology and test requirements
IEC 60060-2 - High-voltage test techniques - Part 2: EN IEC 60060-2 -
Measuring systems
IEC 60068-1 - Environmental testing - Part 1: General EN 60068-1 -
and guidance
IEC 60212 - Standard conditions for use prior to and EN 60212 -
during the testing of solid electrical
insulating materials
IEC 61318 - Live working - Methods for assessment of EN IEC 61318 -
defects and verification of performance
applicable to tools, devices and equipment
IEC 61477 - Live working - Minimum requirements for EN 61477 -
the utilization of tools, devices and
equipment
ISO 2592 - Petroleum products - Determination of EN ISO 2592 -
flash and fire points - Cleveland open cup
method
ISO 2977 - Petroleum products and hydrocarbon - -
solvents_- Determination of aniline point
and mixed aniline point
ISO 3104 - Petroleum products - Transparent and EN ISO 3104 -
opaque liquids - Determination of kinematic
viscosity and calculation of dynamic
viscosity
ISO 4649 2017 Rubber, vulcanized or thermoplastic - - -
Determination of abrasion resistance using
a rotating cylindrical drum device
ISO 23529 - Rubber - General procedures for preparing - -
and conditioning test pieces for physical
test methods
IEC 61111 ®
Edition 3.0 2026-09
INTERNATIONAL
STANDARD
Live working - Electrical insulating matting

ICS 13.260; 29.240.20; 29.260.99 ISBN 978-2-8327-1470-6

IEC 61111:2026-09(en)
IEC 61111:2026 © IEC 2026
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Requirements . 9
4.1 General . 9
4.2 Electrical classification . 10
4.3 Physical requirements . 10
4.3.1 Composition . 10
4.3.2 Shape . 10
4.3.3 Dimensions and tolerances . 10
4.3.4 Temperature . 11
4.3.5 Workmanship and finish . 11
4.4 Mechanical, climatic and environmental requirements . 12
4.5 Dielectric requirements . 12
4.6 Marking . 12
4.7 Packaging . 13
4.8 Instructions for use . 13
5 Type tests . 13
5.1 General . 13
5.2 Visual inspection and measurements . 14
5.2.1 General . 14
5.2.2 Classification . 14
5.2.3 Composition . 14
5.2.4 Dimensions, workmanship and finish . 14
5.2.5 Thickness . 14
5.3 Marking . 14
5.3.1 Visual inspection and measurement . 14
5.3.2 Durability of marking . 15
5.4 Packaging and instructions for use . 15
5.5 Mechanical tests . 15
5.5.1 General . 15
5.5.2 Mechanical puncture resistance . 15
5.5.3 Test for slip resistance . 16
5.6 Dielectric tests . 18
5.6.1 General . 18
5.6.2 Electrodes . 19
5.6.3 Test equipment . 20
5.6.4 Electrical test procedure . 20
5.7 Ageing test . 22
5.8 Thermal tests . 22
5.8.1 Flame retardance test . 22
5.8.2 Low temperature folding test (except for matting of category C) . 23
5.8.3 Extremely low temperature folding test for matting of category C only. 23
5.9 Acid resistance . 24
IEC 61111:2026 © IEC 2026
5.10 Oil resistance . 24
6 Method of assessment of defects and verification of performance applicable to
electrical insulating matting having completed the production phase . 25
6.1 General . 25
6.2 Routine test . 25
6.3 Sampling test . 26
7 Modifications . 26
Annex A (informative) Guidelines for the selection of the class of electrical insulating
matting in relation to nominal voltage of a system . 27
Annex B (normative) Suitable for live working, double triangle
(IEC 60417-5216:2002-10) . 28
Annex C (informative)  In-service care and testing . 29
C.1 General . 29
C.2 Storage . 29
C.3 Marking on matting of small dimensions cut from rolls . 29
C.4 Examination before use . 29
C.5 Temperature . 29
C.6 Precautions in use . 30
C.7 Periodic inspection and testing . 30
C.7.1 General . 30
C.7.2 Check-in . 31
C.7.3 Cleaning . 31
C.7.4 Preliminary visual inspection . 31
C.7.5 Electrical test . 31
C.7.6 Final visual inspection. . 32
C.7.7 Record-keeping and marking or stamping . 32
C.7.8 Packing for storage or shipment . 32
Annex D (normative) General type test procedure . 33
D.1 General . 33
D.2 Group size requirements . 34
D.2.1 Group 1 . 34
D.2.2 Group 2 . 34
D.2.3 Group 3 . 34
D.2.4 Group 4 . 34
D.2.5 Group 5 . 34
Annex E (normative) Oil for tests for oil resistance . 35
E.1 Particularities of liquid 102 . 35
E.2 Characteristics of oil no. 1 . 35
Annex F (normative) Classification of defects and tests to be allocated . 36
Annex G (informative) Rationale for the classification of defects . 37
Bibliography . 38

Figure 1 – Test plates and needle for resistance to mechanical puncture . 16
Figure 2 – Test for slip resistance . 18
Figure 3 – Test set-up for voltage proof test of electrical insulating matting with
standard type of electrodes . 19
Figure 4 – Test set-up for voltage withstand test . 20
Figure 5 – Test set-up for low and extremely low temperature folding tests . 23
IEC 61111:2026 © IEC 2026
Figure 6 – Example of test set-up for testing the entire length of each roll . 25

Table 1 – Classes and maximum use voltages for electrical insulating matting . 10
Table 2 – Maximum thickness for electrical insulating matting . 11
Table 3 – Maximum electrode clearance for proof tests. 19
Table 4 – Test voltages . 21
Table 5 – Sampling plan . 26
Table C.1 – Guide for periodic inspection and testing of matting . 30
Table C.2 – Voltage values for periodic testing . 32
Table D.1 – List and chronological order of type tests . 33
Table E.1 – Characteristics of oil no. 1 . 35
Table F.1 – Classification of defects and associated requirements and tests. 36
Table G.1 – Justification for the type of defect . 37

IEC 61111:2026 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Live working -
Electrical insulating matting
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 61111 has been prepared by IEC technical committee 78: Live Working. It is an
International Standard.
This third edition cancels and replaces the second edition published in 2009. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) review of the scope;
b) introduction of AC/DC use and AC use only;
c) verification of dated referenced standards;
d) improvement of the marking;
e) rewriting of the test for slip resistance;
f) updating the use of IEC 61318;
IEC 61111:2026 © IEC 2026
g) creation of an alternative test;
h) revision and updating of Annexes A, B, C, D, F, G.
The text of this International Standard is based on the following documents:
Draft Report on voting
78/1559/FDIS 78/1584/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
IEC 61111:2026 © IEC 2026
INTRODUCTION
This document has been prepared according to the requirements of IEC 61477 where
applicable.
The product covered by this document can have an impact on the environment during some or
all stages of its life cycle. These impacts can range from slight to significant, be of short-term
or long-term, and occur at the global, regional or local level.
Except for a disposal statement in the instructions for use, this document does not include
requirements and test provisions for the manufacturers of the product, or recommendations to
the users of the product for environmental improvement. However, all parties intervening in its
design, manufacture, packaging, distribution, use, maintenance, repair, reuse, recovery and
disposal are invited to take account of environmental considerations.

IEC 61111:2026 © IEC 2026
1 Scope
This document is applicable to electrical insulating matting made of flexible insulating material
for use as a covering of the surface on which the worker is positioned and for worker´s electrical
protection on electrical installations up to 36 000 V AC for AC use or 36 000 V AC and
54 000 V DC for AC/DC use.
NOTE 1 The electric potential of the surface on which the worker is positioned is usually that of earth.
NOTE 2 See 4.2 for maximum use voltage.
NOTE 3 DC only rated matting is not specified in this document.
NOTE 4 This document does not cover the use of insulating blankets (see IEC 61112)
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60060-1, High-voltage test techniques - Part 1: General terminology and test requirements
IEC 60060-2, High-voltage test techniques - Part 2: Measuring systems
IEC 60068-1, Environmental testing - Part 1: General and guidance
IEC 60212, Standard conditions for use prior to and during the testing of solid electrical
insulating materials
IEC 61318, Live Working - Methods for assessment of defects and verification of performance
applicable to tools, devices and equipment
IEC 61477, Live working - Minimum requirements for the utilization of tools, devices and
equipment
ISO 2592, Petroleum and related products - Determination of flash and fire points - Cleveland
open cup method
ISO 2977, Petroleum products and hydrocarbon solvents - Determination of aniline point and
mixed aniline point
ISO 3104, Petroleum products - Transparent and opaque liquids - Determination of kinematic
viscosity and calculation of dynamic viscosity
ISO 4649:2017, Rubber, vulcanized or thermoplastic - Determination of abrasion resistance
using a rotating cylindrical drum device
ISO 23529, Rubber - General procedures for preparing and conditioning test pieces for physical
test methods
IEC 61111:2026 © IEC 2026
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61318 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
– ISO Online browsing platform: available at https://www.iso.org/obp
– IEC Electropedia: available at http://www.electropedia.org/
3.1
disruptive discharge
passage of an electric arc following electric breakdown
Note 1 to entry: The term “sparkover” is used when a disruptive discharge occurs in a gaseous or liquid dielectric.
Note 2 to entry: The term “flashover” is used when a disruptive discharge occurs at least partly along the surface
of a solid dielectric surrounded by a gaseous or liquid medium.
Note 3 to entry: The term “puncture” is used when a disruptive discharge occurs through a solid dielectric producing
permanent damage.
[SOURCE: IEC 60050-212:2010, 212-11-46, modified – Note to entry deleted and replaced by
notes to entry 1,2 and 3]
3.2
elastomer
macromolecular material which returns after substantial deformation by a weak stress and
release of the stress rapidly to approximately its initial dimensions and shape
Note 1 to entry: The definition applies to room temperature test conditions.
Note 2 to entry: Elastomer is a generic term that includes rubber, latex and elastomeric compounds that may be
natural or synthetic or a mixture or a combination of both. It also includes thermoplastic elastomer (TPE) material.
[SOURCE: IEC 60050-212:2010, 212-14-05, modified – Note 2 to entry has been added.]
3.3
electrical insulating matting
flat protective cover made of flexible insulating material, used to provide electrical insulation
between the feet of the worker and the surface on which the worker is standing
Note 1 to entry: The electric potential of the surface on which the worker is standing is usually that of earth.
[SOURCE: IEC 60050-651:2014, 651-22-13, modified – Note 2 to entry has been deleted]
3.4
international rubber hardness degree
IRHD
measure of hardness, the magnitude of which is derived from the depth of penetration of a
specified indentor into a test piece under specified conditions
Note 1 to entry: The IRHD scale is such that 0 degrees represents a material showing no measurable resistance
to indentation and 100 degrees represents a material showing no measurable indentation. The scale is described
fully in ISO 48.
[SOURCE: ISO 1382:2020, 3.264]
IEC 61111:2026 © IEC 2026
3.5
nominal voltage of a system
suitable approximate value of voltage used to designate or identify a system
[SOURCE: IEC 60050-601:1985, 601-01-21]
3.6
proof test
test to demonstrate the safety of the equipment for work by evaluating the
capability of the insulating material or product under prescribed test conditions to conform with
applicable rating
Note 1 to entry: An AC proof test typically involves applying a voltage corresponding to a temporary overvoltage
higher than the equipment's nominal operating voltage for a specified period.
Note 2 to entry: A DC proof test typically involves applying a voltage value gain from long time in-service testing
experience corresponding to DC voltage level able to find harmful physical irregularities in insulating material with
sufficient safety margin.
3.7
proof test voltage
specified voltage that is applied to a device or test piece for the time defined under specified
conditions to assure that the electrical strength of the insulation is above the applicable rating
3.8
routine test
conformity test made on each individual item during or after manufacture
[SOURCE: IEC 60050-151:2001, 151-16-17]
3.9
withstand test
test on insulating material or product made by applying a high voltage
across the insulation to determine the adequacy of the dielectric strength
Note 1 to entry: The dielectric strength includes the material integrity.
Note 2 to entry: An AC withstand test typically involves applying a high voltage stress corresponding to a switching
overvoltage.
Note 3 to entry: The value of the DC withstand test is gain from the experience testing and the knowledge of the
insulating material quality and integrity.
3.10
withstand test voltage
voltage that a test piece is required to withstand without disruptive discharge or other electric
failure when voltage is applied under specified conditions
4 Requirements
4.1 General
Electrical insulating matting shall be designed and manufactured to contribute to the safety of
the users provided they are used by skilled persons, in accordance with safe methods of work
and the instructions for use.
IEC 61111:2026 © IEC 2026
4.2 Electrical classification
The electrical insulating matting covered by this document shall be designated as follows:
– by electrical class as given in Table 1
Table 1 – Classes and maximum use voltages for electrical insulating matting
Class Maximum use voltages for AC/DC used matting Maximum use voltage for AC only
used matting
0 1 000 V AC / 1 500 V DC 1 000 V
1 7 500 V AC / 11 250 V DC 7 500 V
2 17 000 V AC / 25 500 V DC 17 000 V
3 26 500 V AC / 39 750 V DC 26 500 V
4 36 000 V AC / 54 000 V DC 36 000 V

– by adding the suffix “C” to the class designation, in case of category C matting (resistance
to extremely low temperature).
Additional guidance for the selection of electrical class is given in Annex A.
4.3 Physical requirements
4.3.1 Composition
The electrical insulating matting shall be manufactured of flexible insulating material such as
elastomer.
Both sides of the electrical insulating matting shall be slip resistant. The slip resistance can be
achieved with surface such as corrugated or diamond design.
Any insert shall not adversely affect the dielectric characteristics of the electrical insulating
matting.
4.3.2 Shape
There is no requirement for the shape of the electrical insulating matting.
Electrical insulating matting can be supplied in either portable style or stationary style (in roll)
to be cut for individual applications.
4.3.3 Dimensions and tolerances
4.3.3.1 Length and width
Electrical insulating matting of class 0,1 and 2 shall not have length and width less than 600 mm.
Electrical insulating matting of class 3 and 4 shall not have length and width less than 914 mm.
Manufacturers shall provide the dimensions of the matting length and width. These dimensions
for each matting shall be within a tolerance up to ±2 % of the stated dimensions.
Portable matting shall have maximum dimensions of (width x length) less than or equal to
1 220 × 2 000 mm.
Stationary matting shall have longitudinal length above 2 000 mm.
IEC 61111:2026 © IEC 2026
4.3.3.2 Maximum thickness
The maximum thickness of matting shall be as given in Table 2 in order to obtain appropriate
flexibility.
Table 2 – Maximum thickness for electrical insulating matting
Class mm
0 6,0
1 6,0
2 8,0
3 11,0
4 14,0
When corrugations or diamonds are present, measurements shall be made over the
corrugations or diamonds. The corrugations shall not be more than 3 mm deep. The
corrugations of the matting on one side of the matting do not line up with corrugations on the
other surface of the matting. The diamonds shall not be higher than 2 mm.
4.3.3.3 Minimum thickness
The minimum thickness shall be determined only by the ability to pass the tests defined in
Clause 5.
4.3.4 Temperature
Standard electrical insulating matting shall be designed to be used in applications having
ambient temperatures between -25 °C and +55 °C and category C matting in ambient
temperatures between -40 °C and + 55 °C.
4.3.5 Workmanship and finish
Electrical insulating matting shall be free on both surfaces from harmful physical irregularities
that can be detected by thorough test or inspection.
Harmful physical irregularities are those defined as any feature that disrupts the uniform,
smooth surface contour, such as pinholes, cracks, blisters, cuts, conductive embedded foreign
matter, creases, pinch marks, voids (entrapped air). Prominent ripples and prominent molded
marks shall not be acceptable.
Non-harmful physical irregularities are those defined as surface irregularities present on either
surface of the matting due to imperfections on forms or molds or other imperfections inherent
to the manufacturing process. These irregularities may be considered acceptable provided that:
a) the thickness at any irregularity conforms to the thickness requirements. Surface design to
improve slip resistance shall not be considered as an irregularity;
b) the indentations, protuberances or mold marks blend into a smooth slope upon stretching
of the material mechanical, climatic and environmental requirements.
Any additions to the matting for marking or traceability e.g. identification tags or microchips can
be considered as non-harmful irregularities as long as the matting fulfils the dielectric and
mechanical requirements contained in subclauses 4.1 through 4.3.4, 4.4 and 4.5.
IEC 61111:2026 © IEC 2026
4.4 Mechanical, climatic and environmental requirements
Electrical insulating matting shall support the mechanical, climatic and environmental stresses
occurring during normal working conditions.
All electrical insulating matting shall be:
– resistant to puncture and verified by test of 5.5.2 and 5.7;
– flame retardant and verified by test of 5.8.1;
– resistant to acid and verified by test of 5.9;
– resistant to oil and verified by test of 5.10;
– resistant to low temperature and verified by test of 5.8.2 (except for category C).
Category C electrical insulating matting shall be resistant to extremely low temperature and
verified by test of 5.8.3.
4.5 Dielectric requirements
Electrical insulating matting shall be capable of withstanding the corresponding electrical
stresses according to its electrical class.
4.6 Marking
Electrical insulating matting complying with the requirements of this document shall be marked
on the product with the following items of marking:
– name, trademark or identification of the manufacturer;
– symbol IEC 60417-5216:2002-10 (Suitable for live working, double triangle), see Annex B;
NOTE The exact ratio of the height of the figure to the base of the triangle is 1,43. For the purpose of convenience,
this ratio can be between the values of 1,4 and 1,5.
– number of the relevant IEC standard immediately adjacent to the symbol, with year of
publication (4 digits);
– month and year of manufacture;
– category C if applicable;
– electrical class designation;
– AC/DC, or AC according to the expected use;
– in the case of matting in rolls, these items of marking shall appear at least every 0,6 meter.
Any additional item of marking shall be subject to agreement between the manufacturer and the
customer.
The marking shall be clearly identifiable by persons with normal or corrected sight without
further magnification; be clearly visible, durable and shall not impair the quality of the electrical
insulating matting.
When a colour code for labels or space is used, the marking shall correspond to the following
code:
Class 0: red,
Class 1: white,
Class 2: yellow,
Class 3: green,
Class 4: orange.
IEC 61111:2026 © IEC 2026
4.7 Packaging
Electrical insulating matting shall be supplied in suitable packaging for shipping and initial
storage to provide protection until it is opened for use.
The outside of the container or package shall be marked with at least the following information:
– product name and reference or catalog number for example;
– number of the relevant IEC standard immediately adjacent to the symbol with year of
publication (4 digits);
– electrical class designation;
– AC/DC or AC according to the expected use;
– dimensions (length and width) of the product.
4.8 Instructions for use
The manufacturer shall provide written instructions for use with each consignment of electrical
insulating matting covered by this document.
These instructions shall be prepared in accordance with the general provisions of IEC 61477.
The instructions for use shall include as a minimum, information such as storage, handling,
disposal and periodic testing.
The instructions for use shall inform the users about critical hazards the manufacturer is aware
of and offer relevant recommendations, but without intruding into the area of work procedures
(for example, recommendation in case of overlapping matting). Additional information is given
in Annex C.
5 Type tests
5.1 General
This document provides testing provisions to demonstrate compliance of the product to the
requirements of Clause 4. These testing provisions are primarily intended to be used as type
tests for validation of the design input.
The allocation of the electrical insulating matting into various test groups, the quantity required
and the order in which the type tests are carried out are given in Annex D.
The test location conditions shall be in accordance with IEC 60068-1:
− ambient temperature: 15 °C to 35 °C;
− relative humidity: 25 % to 75 %;
− atmospheric pressure: 86 kPa to 106 kPa.
For type tests, electrical insulating matting or test pieces shall be conditioned for a period of
2 h ± 0,5 h at a temperature of 23 °C ± 2 °C and relative humidity of 50 % ± 5 % according to
IEC 60212 standard atmosphere B, unless otherwise specified.
The tolerances for any measured value shall be ±5 %, unless otherwise specified.
IEC 61111:2026 © IEC 2026
5.2 Visual inspection and measurements
5.2.1 General
Visual inspection shall be carried out by people with normal or corrected sight without further
magnification.
5.2.2 Classification
The matting shall be checked by visual inspection to ensure that the requirements of 4.2 are
fulfilled.
5.2.3 Composition
The matting shall be checked by visual inspection to ensure that the requirements of 4.3.1 are
fulfilled.
5.2.4 Dimensions, workmanship and finish
The product length and width provided by the manufacturer shall be verified with the electrical
insulating matting in a flattened condition.
The test shall be considered as passed if the requirements of 4.3.3.1 are satisfied.
The workmanship and finish shall be verified by visual inspection. Where matting is supplied in
a roll, a length of 2 m shall be submitted for inspection.
The inspection shall be considered as passed if the requirements of 4.3.5 are satisfied.
5.2.5 Thickness
Thickness measurements shall be made at five points approximately uniformly distributed over
the total area of the electrical insulating matting. Where matting is supplied in a roll, a length of
2 m shall be submitted to test.
Measurements shall be made with a commercial device designed for use on flexible materials
and that measures the maximum thickness with an accuracy of 0,03 mm. Sufficient support
shall be given to the matting so that it will present an unstressed flat surface at the measurement
point.
According to ISO 23529, the pressure exerted by the presser foot of the measuring device shall
be 22 kPa ± 5 kPa for matting material having a hardness equal to or greater than 35 IRHD,
and 10 kPa ± 2 kPa for matting material having a hardness less than 35 IRHD.
The test shall be considered as passed if the requirements of 4.3.3.2 are satisfied.
5.3 Marking
5.3.1 Visual inspection and measurement
The marking requirements of 4.6 shall be verified by visual inspection. Where matting is
supplied in a roll, a length of 2 m shall be submitted to inspection.
IEC 61111:2026 © IEC 2026
5.3.2 Durability of marking
The durability of the items marked on the electrical insulating matting shall be checked by
rubbi
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