IEC 60695-11-2:2017

IEC 60695-11-2 ®
Edition 3.0 2017-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
Fire hazard testing –
Part 11-2: Test flames – 1 kW nominal pre-mixed flame – Apparatus,
confirmatory test arrangement and guidance

Essais relatifs aux risques du feu –
Partie 11-2: Flammes d’essai – Flamme à prémélange de 1 kW nominal –
Appareillage, configuration pour l’essai de vérification et préconisations
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IEC 60695-11-2 ®
Edition 3.0 2017-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ

Fire hazard testing –
Part 11-2: Test flames – 1 kW nominal pre-mixed flame – Apparatus,

confirmatory test arrangement and guidance

Essais relatifs aux risques du feu –

Partie 11-2: Flammes d’essai – Flamme à prémélange de 1 kW nominal –

Appareillage, configuration pour l’essai de vérification et préconisations

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.220.40 ISBN 978-2-8322-4313-8

– 2 – IEC 60695-11-2:2017 © IEC 2017
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Burner/supply arrangement. 7
4.1 Requirements . 7
4.2 Apparatus and fuel . 7
4.2.1 Burner . 7
4.2.2 Flow control . 7
4.2.3 Copper block . 8
4.2.4 Thermocouple . 8
4.2.5 Temperature/time indicating/recording devices . 8
4.2.6 Laboratory fumehood/chamber . 8
5 Production of the test flame . 8
5.1 Selection of the method . 8
5.2 Method A . 9
5.3 Method B (alternative) . 9
6 Confirmation of the test flame . 9
6.1 Principle . 9
6.2 Frequency of confirmatory tests . 9
6.3 Procedure . 10
7 Recommended arrangements for use of the test flame . 10
Annex A (normative) Burner details, arrangements and confirmatory test . 12
A.1 Burner construction . 12
A.2 Gas supply arrangement . 17
A.3 The copper block . 18
A.4 Confirmatory test . 18
Bibliography . 20

Figure 1 – Flame dimensions . 11
Figure A.1 – General assembly . 13
Figure A.2 – Burner details (1) . 13
Figure A.3 – Burner details (2) . 14
Figure A.4 – Burner details (3) . 15
Figure A.5 – Burner details (4) . 16
Figure A.6 – Example of supply arrangement for burner . 17
Figure A.7 – Copper block . 18
Figure A.8 – Confirmatory test arrangement . 19

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIRE HAZARD TESTING –
Part 11-2: Test flames – 1 kW nominal pre-mixed flame –
Apparatus, confirmatory test arrangement and guidance

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
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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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
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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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60695-11-2 has been prepared by IEC technical committee 89:
Fire hazard testing.
The text of this International Standard is based on the following documents:
CDV Report on voting
89/1327/CDV 89/1354/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 60695-11-2:2017 © IEC 2017
This third edition of IEC 60695-11-2 cancels and replaces the second edition published in
2013. It constitutes a technical revision.
It has the status of a basic safety publication in accordance with IEC Guide 104 and
ISO/IEC Guide 51.
This edition includes the following significant technical changes with respect to the previous
edition:
• addition of an alternative production of the test flame;
• deletion of Annex B.
In this standard, the following print types are used:
• terms defined within Clause 3: in bold type
A list of all the parts in the IEC 60695 series, under the general title Fire hazard testing can
be found on the IEC web site.
Part 11 consists of the following parts:
Part 11-2: Test flames – 1 kW nominal pre-mixed flame – Apparatus, confirmatory test
arrangement and guidance
Part 11-3: Test flames – 500 W flames – Apparatus and confirmational test methods
Part 11-4: Test flames – 50 W flame – Apparatus and confirmational test method
Part 11-5: Test flames – Needle-flame test method – Apparatus, confirmatory test
arrangement and guidance
Part 11-10: Test flames – 50 W horizontal and vertical flame test methods
Part 11-11: Test flames – Determination of the characteristic heat flux for ignition from a
non-contacting flame source
Part 11-20: Test flames – 500 W flame test methods
Part 11-30: Test flames – History and development from 1979 to 1999
Part 11-40: Test flames – Confirmatory tests – Guidance
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this publication using a colour printer.

INTRODUCTION
In the design of any electrotechnical product, the risk of fire and the potential hazards
associated with fire need to be considered. In this respect the objective of component, circuit,
and product design, as well as the choice of materials, is to reduce to acceptable levels the
potential risks of fire during normal operating conditions, reasonable foreseeable abnormal
use, malfunction, and/or failure. The IEC has developed IEC 60695-1-10 [1] , together with its
companion, IEC 60695-1-11 [2], to provide guidance on how this is to be accomplished.
The primary aims of IEC 60695-1-10 and IEC 60695-1-11 are to provide guidance on how:
a) to prevent ignition caused by an electrically energized component part, and
b) to confine any resulting fire within the bounds of the enclosure of the electrotechnical
product in the event of ignition.
Secondary aims of these documents include the minimization of any flame spread beyond the
product’s enclosure and the minimization of harmful effects of fire effluents such as heat,
smoke, toxicity and/or corrosivity.
Fires involving electrotechnical products can also be initiated from external non-electrical
sources. Considerations of this nature should be dealt with in the overall fire risk assessment.
IEC 60695-11-2 provides a description of the apparatus required to produce a 1 kW test
flame, and provides a description of the principle of a confirmation procedure to check that
the effective power output of the flame is as intended. Guidance on confirmatory tests for test
flames is given in IEC TS 60695-11-40 [3].
This part of IEC 60695 may involve hazardous materials, operations, and equipment. It does
not purport to address all of the safety problems associated with its use. It is the responsibility
of the user of this international standard to establish appropriate safety and health practices
and determine the applicability of regulatory limitations prior to use.
___________
Numbers in square brackets refer to the bibliography.

– 6 – IEC 60695-11-2:2017 © IEC 2017
FIRE HAZARD TESTING –
Part 11-2: Test flames – 1 kW nominal pre-mixed flame –
Apparatus, confirmatory test arrangement and guidance

1 Scope
This part of IEC 60695 gives the requirements for the production and confirmation of a
nominal 1 kW propane/air pre-mixed flame for use in fire hazard testing.
This basic safety publication is intended for use by technical committees in the preparation of
standards in accordance with the principles laid down in IEC Guide 104 [4] and
ISO/IEC Guide 51 [5].
One of the responsibilities of a technical committee is, wherever applicable, to make use of
basic safety publications in the preparation of its publications.
The requirements, test methods or test conditions of this basic safety publication will not
apply unless specifically referred to or included in the relevant publications.
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 60584-1, Thermocouples - Part 1: EMF specifications and tolerances
ISO/IEC 13943:2008, Fire safety – Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 13943:2008,
some of which are reproduced below for the user’s convenience, as well as the following
apply.
3.1
combustion
exothermic reaction of a substance with an oxidizing agent
Note 1 to entry Combustion generally emits fire effluent accompanied by flames and/or glowing.
[SOURCE: ISO 13943:2008, definition 4.46]
3.2
draught-free environment
space in which the results of experiments are not significantly affected by the local air speed
Note 1 to entry A qualitative example is a space in which a wax candle flame remains essentially undisturbed.
-1 -1
Quantitative examples are small-scale fire tests in which a maximum air speed of 0,1 m × s or 0,2 m × s
sometimes specified.
[SOURCE: ISO 13943:2008, definition 4.70]
3.3
flame, noun
rapid, self-sustaining, sub-sonic propagation of combustion in a gaseous medium, usually
with emission of light
[SOURCE: ISO 13943:2008, definition 4.133]
3.4
pre-mixed flame
flame in which combustion occurs in an intimate mixture of fuel and oxidizing agent
[SOURCE: ISO 13943:2008, definition 4.259]
3.5
standardized 1 kW test flame
test flame conforming to this international standard and meeting all of the requirements given
in Clauses 4 to 6
4 Burner/supply arrangement
4.1 Requirements
A standardized 1 kW test flame, according to this method, is one that is produced
• using hardware according to Figure A.1 to Figure A.1,
• supplied with propane gas of purity not less than 95 %,
• supplied with air essentially free of oil and water.
The flame shall be symmetrical, stable and give a result of 46 s ± 6 s in the confirmatory test
described in Clause 6.
The confirmatory test arrangement shown in Figure A.8 shall be used.
4.2 Apparatus and fuel
4.2.1 Burner
The burner shall be in accordance with Figure A.1 to Figure A.5 inclusive.
NOTE The gas injector and flame stabilizer are removable for cleaning purposes.
4.2.2 Flow control
Flow controllers shall be used and shall be capable of:
• the measurement and control of a propane gas flow rate of about 650 cm /min at 23 °C
and 0,1 MPa, with an adequate accuracy to measure within the tolerance specified in the
relevant test method (see Clause 5),
• the measurement and control of an air flow rate of about 10 dm /min at 23 °C and
0,1 MPa, with an adequate accuracy to measure within the tolerance specified in the
relevant test method (see Clause 5).
NOTE Mass flow controllers have been found to be suitable to meet the requirements of Clause 5.

– 8 – IEC 60695-11-2:2017 © IEC 2017
4.2.3 Copper block
A copper block 9 mm in diameter, with a mass of 10,00 g ± 0,05 g in the fully machined but
undrilled state, as described in Figure A.7, shall be made from electrolytic tough pitch copper
Cu-ETP USN C11000 [6].
4.2.4 Thermocouple
A mineral-insulated, metal-sheathed fine-wire thermocouple with an insulated junction, shall
be used for measuring the temperature of the copper block. It shall have an overall nominal
diameter of 0,5 mm and wires of, for example, NiCr and NiAl (type K), in accordance with
IEC 60584-1, with the welded point located inside the sheath. The sheath shall consist of a
metal resistant to continuous operation at a temperature of at least 1 050 °C. Thermocouple
tolerances shall be in accordance with IEC 60584-1, class 1.
NOTE A sheath made from a nickel-based, heat resistant alloy (such as Inconel 600 ) will satisfy the above
requirements.
The preferred method of fastening the thermocouple to the copper block is by first ensuring
that the thermocouple is inserted to the full depth of the hole and then by compressing the
copper around the thermocouple as shown in Figure A.8.
4.2.5 Temperature/time indicating/recording devices
The temperature/time indicating/recording devices shall be appropriate for the measurement
of the time for the copper block to heat up from 100 °C ± 5 °C to 700 °C ± 3 °C with a
tolerance on the measured time of ± 0,5 s.
4.2.6 Laboratory fumehood/chamber
The laboratory fume hood/chamber shall have an inside volume of at least 1,0 m . The
chamber shall provide a draught-free environment, whilst allowing normal thermal
circulation of air around the test specimen. The chamber shall permit observation of tests in
progress. Unless otherwise stated in the relevant specification, the inside surfaces of the
chamber shall be of a dark colour. When a lux meter, facing towards the rear of the chamber,
is positioned in place of the test specimen, the recorded light level shall be less than 20 lx.
For safety and convenience, this enclosure (which can be completely closed) should be fitted
with an extraction device, such as an exhaust fan, to remove products of combustion which
could be toxic. If fitted, the extraction device shall be turned off during the test and turned on
immediately after the test to remove the fire effluents. A positive closing damper may be
needed.
NOTE 1 The amount of oxygen available to support combustion of the test specimen is important for the conduct
of this flame test. For tests conducted by this method when burning times are prolonged, chambers having an
inside volume of 1,0 m may not be sufficient to produce accurate results.
NOTE 2 Placing a mirror in the chamber, to provide a rear view of the test specimen, has been found to be useful.
5 Production of the test flame
5.1 Selection of the method
Unless otherwise specified in the relevant standard, method A shall be used.
___________
This information is given for the convenience of users of this international standard and does not constitute an
endorsement by the IEC of the product named. Equivalent products may be used if they can be shown to lead
to the same results.
5.2 Method A
Set up the burner supply arrangement according to Figure A.6 ensuring leak-free connections
and place the burner in the laboratory fume hood/chamber.
Ignite the gas and adjust the gas and air flow rates to the following values.
3 3
The volume flow rate of propane gas shall be equivalent to 650 cm /min ± 10 cm /min when
measured at 23 °C and 0,1 MPa.
3 3
The volume flow rate of air shall be equivalent to 10,0 dm /min ± 0,3 dm /min when measured
at 23 °C and 0,1 MPa.
NOTE These volume flow rates correspond to mass flow rates of 1,184 g/min ± 0,018 g/min for propane gas
(density at 23 °C and 0,1 MPa = 1,821 g/dm ), and 11,64 g/min ± 0,35 g/min for air (density at 23 °C and 0,1 MPa
= 1,1764 g/dm ).
The flame shall appear stable and symmetrical on examination.
5.3 Method B (alternative)
Set up the burner supply arrangement according to Figure A.6 ensuring leak-free connections
and place the burner in the laboratory fume hood/chamber.
Ignite the gas and adjust the gas and air flow rates to the following values.
3 3
The volume flow rate of propane gas shall be equivalent to 650 cm /min ± 30 cm /min when
measured at 23 °C and 0,1 MPa.
3 3
The volume flow rate of air shall be equivalent to 10,0 dm /min ± 0,5 dm /min when measured
at 23 °C and 0,1 MPa.
NOTE These volume flow rates correspond to mass flow rates of 1,184 g/min ± 0,054 g/min for propane gas
(density at 23 °C and 0,1 MPa = 1,821 g/dm³), and 11,64 g/min ± 0,58 g/min for air (density at 23 °C and 0,1 MPa =
1,1764 g/dm³).
The flame shall appear stable and symmetrical on examination.
6 Confirmation of the test flame
6.1 Principle
The time for the temperature of the copper block, described in Figure A.6, to increase from
100 °C ± 5 °C to 700 °C ± 3 °C shall be 46 s ± 6 s when the flame test arrangement of Figure
A.8 is used.
6.2 Frequency of confirmatory tests
The confirmatory test shall be done;
a) when the gas supply is changed, or test equipment is replaced, or when data are
questioned;
and either
b) before use of the test flame if the period between use exceeds one month;
or
c) at least once a month if the period between use is less than or equal to one month.

– 10 – IEC 60695-11-2:2017 © IEC 2017
6.3 Procedure
Set up the burner supply and confirmatory test arrangement according to Figure A.8 in the
laboratory fume hood/chamber, ensuring leak-free gas connections.
Temporarily remove the burner away from the copper block to ensure there is no influence of
the flame on the copper block during the preliminary adjustment of gas and air flow rates.
Ignite the gas and adjust the gas and air flow rates to the values specified in Clause 5.
Ensure that the flame is symmetrical. The approximate dimensions of the flame (see Figure
1), when measured in the laboratory fume hood/chamber and viewed in subdued light, are as
follows:
• blue cone height: 46 mm to 78 mm;
• overall flame height: 148 mm to 208 mm.
Wait for a period of at least 5 min to allow the burner conditions to reach equilibrium.
With the temperature/time indicating/recording devices operational, re-position the burner
under the copper block.
Determine the time for the temperature of the block to increase from 100 °C ± 5 °C to
700 °C ± 3 °C. If the time is 46 s ± 6 s, record the gas and air flow rates and repeat the
procedure two additional times until three successive determinations are each 46 s ± 6 s.
Allow the block to cool naturally in air to below 50 °C between determinations. If the time of
any determination is not 46 s ± 6 s, then all parts of the apparatus should be checked to
ensure that they are in accordance with this international standard.
NOTE At temperatures above 700 °C, the thermocouple can easily be damaged; therefore, it is advisable to
remove the burner immediately after reaching 700 °C.
If the copper block has not been used before, make a preliminary run to condition the copper
block surface. Discard the result.
7 Recommended arrangements for use of the test flame
When used for testing equipment, unless otherwise stated in the relevant standard, the
recommended distance from the top of the burner tube to the point on the surface of the test
specimen to be tested is approximately 100 mm and the burner shall be fixed in position
during the test.
NOTE The distance of 100 mm was chosen to give better reproducibility than the position where the tip of the
blue cone is in contact with the test specimen.
When used for testing strips of materials, where the operator may move the flame during the
test to follow the distorting or burning test specimen, the tip of the blue cone should be as
close as possible without touching the test specimen.
The burner shall be tilted in such a way that debris falling from the test specimen under test
does not fall into the burner.

IEC
Key
1 Overall flame height (148 mm to 208 mm)
2 Blue cone height (46 mm to 78 mm)
Figure 1 – Flame dimensions
– 12 – IEC 60695-11-2:2017 © IEC 2017
Annex A
(normative)
Burner details, arrangements and confirmatory test
A.1 Burner construction
Figure A.1 through Figure A.8 illustrate the burner assembly.
IEC
Key
1 Burner barrel Parts 1, 2, 3, 4, and 5 are hard soldered on assembly.
2, 3 Air manifold Parts 7 and 8 may be hard soldered together, if necessary, to prevent gas
leakage.
4 Air supply tube Parts 8 and 9 may be fabricated in one piece, or otherwise fastened together, to
prevent gas leakage.
5, 6 Flame stabilizer Parts 1, 2, 3, 5 and 6 are detailed in Figure A.2.
7 Gas supply tube Parts 8 and 9 are detailed in Figure A.3.
8 Elbow block Parts 7 and 10 are detailed in Figure A.4.
9 Burner base Part 4 is detailed in Figure A.5.
10 Gas jet
Figure A.1 – General assembly
Dimensions in millimetres
Tolerances ± 0,1 unless otherwise stated
ø15
Outer radius 4,0
ø12
Inner radius 2,5
ø19
ø7 ± 0,05
ø17
Drill 6 holes ø1,5
ø22 × 1 pitch
ø25
ø27
ø30
Detail 6
Detail 2
ø22 × 1 pitch
ø30
ø25
Drill 3 holes ø6
ø17
ø15
ø17
Detail 3
ø14 × 1 pitch
Detail 5
ø17
Detail 1 IEC
Material: brass
Figure A.2 – Burner details (1)
ø10
– 14 – IEC 60695-11-2:2017 © IEC 2017
Dimensions in millimetres
Tolerances ± 0,1 unless otherwise stated
ø14 × 1 pitch
ø5 × 0,8 pitch
14 RCD
Drill/tap three holes
ø20
ø2,5 × 0,45 pitch
Detail 9
Detail 8
ø80
ø20
IEC
NOTE The shape of part 9 is given as an example.
Material: brass or any other suitable material.
Figure A.3 – Burner details (2)
ø2,5
ø4
ø10 × 1 pitch
Dimensions in millimetres
Tolerances ± 0,1, ± 30’ (angular) unless otherwise stated
ø10 × 1 pitch
ø6
ø7
ø0,53-0,56
(drill ø0,52)
35°
ø5 × 0,8 pitch
Detail 10
Gas injector
Detail 7
IEC
Material: brass
Figure A.4 – Burner details (3)
– 16 – IEC 60695-11-2:2017 © IEC 2017
Dimensions in millimetres
Tolerances ± 0,1, ± 30’ (angular) unless otherwise stated
ø12
ø10
ø8
45°
ø8
Detail 4
IEC
Material: brass
Figure A.5 – Burner details (4)
ø1,65
2 3 3 2
A.2 Gas supply arrangement
Figure A.1 illustrates the gas supply arrangement to the burner.
IEC
Key
1 Compressed air supply
2 Air flow control and measurement
3 Gas flow control and measurement
4 Gas supply
Figure A.6 – Example of supply arrangement for burner

– 18 – IEC 60695-11-2:2017 © IEC 2017
A.3 The copper block
Figure A.1 gives the dimensions of the copper block
Dimensions in millimetres
Tolerances ± 0,1, ± 30’ (angular) unless otherwise stated
ø9 ± 0,01
ø5
45º ± 0,5º
IEC
The copper block shall be polished on all external surfaces.
Material: electrolytic copper Cu-ETP USN C11000 [6]
Mass: 10,00 g ± 0,05 g before drilling
Figure A.7 – Copper block
A.4 Confirmatory test
Figure A.1 shows the arrangement of the apparatus for a confirmatory test.
6 ± 0,02
3 ± 0,01 16,14 ± 0,02
Dimensions in millimetres
IEC
Key
1 Suspension point
2 Temperature indicating/recording device(s) and Time indicating/recording device(s)
3 After first ensuring that the thermocouple is inserted to the full depth of the hole, the copper is compressed
around the thermocouple to retain it without damage.
The mode of suspension of the copper block shall be such that the block remains essentially stationary during the
test.
Figure A.8 – Confirmatory test arrangement
95 ± 1 ≥75
– 20 – IEC 60695-11-2:2017 © IEC 2017
Bibliography
[1] IEC 60695-1-10, Fire hazard testing – Part 1-10: Guidance for assessing the fire
hazard of electrotechnical products – General guidelines
[2] IEC 60695-1-11, Fire hazard testing – Part 1-11: Guidance for assessing the fire
hazard of electrotechnical products – Fire hazard assessment
[3] IEC TS 60695-11-40, Fire hazard testing – Part 11-40: Test flames – Confirmatory
tests – Guidance
[4] IEC GUIDE 104, The preparation of safety publications and the use of basic safety
publications and group safety publications
[5] ISO/IEC Guide 51:1999, Safety aspects – Guidelines for their inclusion in standards
[6] ISO 1337:1980, Wrought coppers (having minimum copper contents of 99,85 %) –
Chemical composition and forms of wrought products
NOTE This publication was withdrawn without replacement in 2000-03 by ISO/TC 26. The replacement call out for
electrolytic tough pitch copper is: Cu-ETP USN C11000 [6].

___________
– 22 – IEC 60695-11-2:2017 © IEC 2017
SOMMAIRE
AVANT-PROPOS . 23
INTRODUCTION . 25
1 Domaine d’application . 26
2 Références normatives . 26
3 Termes et définitions . 26
4 Configuration d’alimentation du brûleur. 27
4.1 Exigences . 27
4.2 Appareillage et combustible . 27
4.2.1 Brûleur . 27
4.2.2 Régulation de débit . 28
4.2.3 Bloc de cuivre . 28
4.2.4 Couple thermoélectrique . 28
4.2.5 Dispositifs d’indication et/ou d’enregistrement de température et de
temps . 28
4.2.6 Hotte de laboratoire . 28
5 Production de la flamme d’essai . 29
5.1 Sélection de la méthode . 29
5.2 Méthode A . 29
5.3 Méthode B (variante) . 29
6 Vérification de la flamme d’essai . 30
6.1 Principe . 30
6.2 Fréquence des essais de vérification . 30
6.3 Procédure . 30
7 Configurations recommandées pour l’utilisation de la flamme d’essai . 31
Annexe A (normative) Détails du brûleur, configurations et essai de vérification . 32
A.1 Montage du brûleur . 32
A.2 Configuration de l'alimentation en gaz . 37
A.3 Le bloc de cuivre . 38
A.4 Essai de vérification . 38
Bibliographie . 40

Figure 1 – Dimensions de la flamme . 31
Figure A.1 – Montage général . 33
Figure A.2 – Détails du brûleur (1) . 33
Figure A.3 – Détails du brûleur (2) . 34
Figure A.4 – Détails du brûleur (3) . 35
Figure A.5 – Détails du brûleur (4) . 36
Figure A.6 – Exemple de configuration d’alimentation du brûleur . 37
Figure A.7 – Bloc de cuivre . 38
Figure A.8 – Configuration pour l’essai de vérification . 39

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
ESSAIS RELATIFS AUX RISQUES DU FEU –

Partie 11-2: Flammes d’essai – Flamme à prémélange de 1 kW nominal –
Appareillage, configuration pour l’essai de vérification et préconisations

AVANT-PROPOS
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...