CISPR 14-1:2005/AMD2:2011

CISPR 14-1 ®
Edition 5.0 2011-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES

AMENDMENT 2
AMENDEMENT 2
Electromagnetic compatibility – Requirements for household appliances, electric
tools and similar apparatus –
Part 1: Emission
Compatibilité électromagnétique – Exigences pour les appareils
électrodomestiques, outillages électriques et appareils analogues –
Partie 1: Emission
CISPR 14-1:2005/A2:2011
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CISPR 14-1 ®
Edition 5.0 2011-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES

AMENDMENT 2
AMENDEMENT 2
Electromagnetic compatibility – Requirements for household appliances, electric
tools and similar apparatus –
Part 1: Emission
Compatibilité électromagnétique – Exigences pour les appareils
électrodomestiques, outillages électriques et appareils analogues –
Partie 1: Emission
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX G
ICS 33.100.10 ISBN 978-2-88912-578-4

– 2 – CISPR 14-1 Amend. 2  IEC:2011
FOREWORD
This amendment has been prepared by CISPR subcommittee F: Interference relating to
household appliances tools, lighting equipment and similar apparatus.
The text of this amendment is based on the following documents:
FDIS Report on voting
CISPR/F/537/FDIS CISPR/F/546/RVD

Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
CONTENTS
Replace the existing Annexes B and C by the following new Annexes B and C:
Annex B (normative) Requirements for induction cooking appliances
Annex C (informative) Example of the use of the upper quartile method to determine
compliance with disturbance limits
Add the following new Annex D:
Annex D (informative) Guidance notes for the measurement of discontinuous disturbance
(clicks)
Add the following new Tables B.1, B.2 and B.3:
Table B.1 – Terminal voltage limits for induction cooking appliances in the frequency range
9 kHz to 30 MHz
Table B.2 – Magnetic field strength limits for induction cooking appliances intended for
commercial use
Table B.3 – Limits of the magnetic field induced current in a 2 m loop antenna for induction
cooking appliances for domestic use

CISPR 14-1 Amend. 2  IEC:2011 – 3 –
1 Scope
Replace the existing first paragraph of this subclause by the following new paragraph:
1.1 This standard applies to the conduction and radiation of radio-frequency disturbances
from appliances whose main functions are performed by motors, switching or regulating
devices, or by r.f. generators used in induction cooking appliances.
Replace the fourth dashed item of the existing Note 1 by the following new dashed item:
– equipment for generation and use of radio frequency energy for heating (other than induction cooking) and
therapeutic purposes: CISPR 11;
Add, after the existing Note 2, the following new Note 3:
NOTE 3 Until induction cooking appliances are removed from the scope of CISPR 11, either CISPR 11 or
CISPR 14-1 may be chosen for compliance.

4 Limits of disturbance
Add, after the first sentence of this clause, the following new text:
The requirements for induction cooking appliances are given in Annex B.
7.3.4.15
Add, after the first paragraph of this subclause – subclause introduced by Amendment 1 – the
following new paragraph:
In case of the rice cooker operating in induction heating function, measurement shall be made
under the condition of maximum input power and the same conditions as specified in
Annex B.
– 4 – CISPR 14-1 Amend. 2  IEC:2011
Renumber the existing Annexes B and C, their existing clauses and subclauses, to have
Annexes C and D respectively.
Add, after the existing Annex A, the following new Annex B:

Annex B
(normative)
Requirements for induction cooking appliances

B.1 Limits of disturbance
B.1.1 General
Radio disturbance measurements below 9 kHz and above 1 000 MHz do not need to be
carried out.
B.1.2 Limits for terminal disturbance voltages in the frequency range 9 kHz to 30 MHz
Limits for mains terminal disturbance voltages are given in Table B.1.
Table B.1 – Terminal voltage limits for induction cooking appliances
in the frequency range 9 kHz to 30 MHz
Frequency All appliances other than those which All appliances which are 100 V rated and
range are 100 V rated and without an earth without an earth connection
connection
(MHz)
dB(µV) dB(µV) dB(µV) dB(µV)
Quasi-peak Average Quasi-peak Average
0,009 – 0,050 110 – 122 –
90 102
Decreasing linearly Decreasing linearly
0,050 – 0,150 with logarithm of – with logarithm of –
frequency to frequency to
80 92
66 56 72 62
Decreasing linearly Decreasing linearly Decreasing linearly Decreasing linearly
0,150 – 0,5 with logarithm of with logarithm of with logarithm of with logarithm of
frequency to frequency to frequency to frequency to
56 46 62 52
0,5 – 5 56 46 56 46
5 – 30 60 50 60 50
CISPR 14-1 Amend. 2  IEC:2011 – 5 –
B.1.3 Limits for radiated disturbances in the frequency range 9 kHz to 30 MHz
The limits for radiated disturbances are specified in the Tables B.2 and B.3.
Table B.2 – Magnetic field strength limits
for induction cooking appliances intended for commercial use
Limits at 3 m distance
Frequency range
Quasi-peak
MHz
dB(µA/m)
0,009 – 0,070 69
0,070 – 0,150 Decreasing linearly with logarithm of frequency to
0,150 – 4,0 Decreasing linearly with logarithm of frequency to
4,0 – 30 3
NOTE 1 The limits of this table apply to induction cooking appliances intended for commercial use and those
for domestic use with a diagonal diameter of more than 1,6 m.
NOTE 2 The measurements are performed at 3 m distance with a 0,6 m loop antenna as described in 4.2.1
of CISPR 16-1-4.
NOTE 3 The antenna shall be vertically installed, with the lower edge of the loop at 1 m height above the
floor.
Table B.3 − Limits of the magnetic field induced current in a 2 m loop antenna
for induction cooking appliances for domestic use
Quasi-peak
Frequency range
dB(µA)
MHz
Horizontal component Vertical component
0,009 – 0,070 88 106
88 106
Decreasing linearly with logarithm Decreasing linearly with logarithm
0,070 – 0,150
of frequency to of frequency to
58 76
58 76
Decreasing linearly with logarithm Decreasing linearly with logarithm
0,150 – 30
of frequency to of frequency to
22 40
NOTE 1 The limits of this table apply to induction cooking appliances for domestic use which have a
diagonal dimension of less than 1,6 m.
NOTE 2 The measurement is performed using the loop antenna system (LAS) as described in 7.6 of
CISPR 16-2-3.
B.1.4 Limits for emissions in the frequency range 30 MHz to 1 000 MHz
Limits for the emissions of induction cooking appliances in the frequency range 30 MHz to
1 000 MHz are given in subclause 4.1.2.
B.2 Methods of measurement
The methods of measurement of terminal disturbance voltage are given in Clause 5.

– 6 – CISPR 14-1 Amend. 2  IEC:2011
The methods of measurement of emissions in the frequency range from 30 MHz to 1 000 MHz
are given in Clauses 6 and 9.
The measurement of radiated disturbances in the frequency range 9 kHz to 30 MHz shall be
made in accordance with CISPR 16-2-3.
B.3 Operating conditions
The appliance shall be operated from a supply that provides the rated voltage and the rated
frequency of the appliance. The operating conditions of 7.1.4 are not applicable.
The following operating conditions apply to induction hobs.
Cooking zones shall be operated separately in sequence.
Energy controller settings shall be selected to give the maximum input power.
In case of single and multiple-zone induction cooking appliances, each cooking zone shall be
operated with an enamelled steel vessel filled with tap water up to 80 % of its maximum
capacity.
The position of the vessel shall match the hob marking on the plate. The smallest usable
standard vessel shall be placed in the centre of each cooking zone. For the dimension of the
vessels, the manufacturer’s instructions take precedence.
A single cooking zone with more than one induction coil shall be measured with two load
conditions. The first measurement shall be performed with the smallest coil of the zone
activated. The second measurement shall be performed with all coils of the zone activated. In
each case, the smallest usable standard vessel shall be used (or the smallest vessel
according to the manufacturer’s instructions, which take precedence) which just activates the
smallest coil, or all coils of the zone, respectively.
Cooking zones which are not intended for use with even vessels (e.g. wok-zones) shall be
measured with the vessel provided together with the hob, or with the vessel recommended by
the manufacturer.
Standard cooking vessels (dimension of the contact surface) are:
– 110 mm;
– 145 mm;
– 180 mm;
– 210 mm;
– 300 mm.
Material of the vessel: the induction cooking method has been developed for ferromagnetic
utensils. For this reason, measurements shall be made with enamelled steel vessels.
The vessel bottom shall be concave and shall not deviate from flatness by more than 0,6 % of
its diameter at the ambient temperature 20 °C ± 5 °C.
NOTE Some vessels on the market are manufactured from alloys with a ferromagnetic portion. However, these
utensils might influence the s
...