SIST EN 55016-2-2:2005/A1:2005
(Amendment)Specification for radio disturbance and immunity measuring apparatus and methods -- Part 2-2: Methods of measurement of disturbances and immunity - Measurement of disturbance power
Specification for radio disturbance and immunity measuring apparatus and methods -- Part 2-2: Methods of measurement of disturbances and immunity - Measurement of disturbance power
Superseded by EN 55016-2-2:2011
Anforderungen an Geräte und Einrichtungen sowie Festlegung der Verfahren zur Messung der hochfrequenten Störaussendung (Funkstörungen) und Störfestigkeit -- Teil 2-2: Verfahren zur Messung der hochfrequenten Störaussendung (Funkstörungen) und Störfestigkeit - Messung der Störleistung
Spécifications des méthodes et des appareils de mesure des perturbations radioélectriques et de l'immunité aux perturbations radioélectriques -- Partie 2-2: Méthodes de mesure des perturbations et de l'immunité - Mesure de la puissance perturbatrice
Specifikacija za merilne naprave in metode za merjenje radijskih motenj in odpornosti – 2-2. del: Metode za merjenje radijskih motenj in odpornosti – Merjenje moči motenj (CISPR 16-2-2:2003/A1:2004)
General Information
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Standards Content (Sample)
SLOVENSKI SIST EN 55016-2-
2:2005/A1:2005
STANDARD
julij 2005
Specifikacija za merilne naprave in metode za merjenje radijskih motenj in
odpornosti – 2-2. del: Metode za merjenje radijskih motenj in odpornosti –
Merjenje moči motenj (CISPR 16-2-2:2003/A1:2004)
Specification for radio disturbance and immunity measuring apparatus and methods
– Part 2-2: Methods of measurement of disturbances and immunity – Measurement
of disturbance power (CISPR 16-2-2:2003/A1:2004)
ICS 17.220.20; 33.100.20 Referenčna številka
SIST EN 55016-2-2:2005/A1:2005(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
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EUROPEAN STANDARD EN 55016-2-2/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM February 2005
ICS 33.100.10; 33.100.20
English version
Specification for radio disturbance
and immunity measuring apparatus and methods
Part 2-2: Methods of measurement of disturbances and immunity -
Measurement of disturbance power
(CISPR 16-2-2:2003/A1:2004)
Spécifications des méthodes Anforderungen an Geräte und
et des appareils de mesure Einrichtungen sowie Festlegung
des perturbations radioélectriques der Verfahren zur Messung der
et de l'immunité aux perturbations hochfrequenten Störaussendung
radioélectriques (Funkstörungen) und Störfestigkeit
Partie 2-2: Méthodes de mesure Teil 2-2: Verfahren zur Messung
des perturbations et de l'immunité - der hochfrequenten Störaussendung
Mesure de la puissance perturbatrice (Funkstörungen) und Störfestigkeit -
(CISPR 16-2-2:2003/A1:2004) Messung der Störleistung
(CISPR 16-2-2:2003/A1:2004)
This amendment A1 modifies the European Standard EN 55016-2-2:2004; it was approved by CENELEC
on 2004-12-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this amendment 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 Central Secretariat or to any CENELEC member.
This amendment 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
Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 55016-2-2:2004/A1:2005 E
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EN 55016-2-2:2004/A1:2005 - 2 -
Foreword
The text of amendment 1:2004 to the International Standard CISPR 16-2-2:2003, prepared by
CISPR SC A, Radio-interference measurements and statistical methods, was submitted to the Unique
Acceptance Procedure and was approved by CENELEC as amendment A1 to EN 55016-2-2:2004 on
2004-12-01 without any modification.
The following dates were fixed:
– latest date by which the amendment has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2005-12-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2007-12-01
__________
Endorsement notice
The text of amendment 1:2004 to the International Standard CISPR 16-2-2:2003 was approved by
CENELEC as an amendment to the European Standard without any modification.
__________
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COMMISSION
CISPR
ÉLECTROTECHNIQUE
16-2-2
INTERNATIONALE
2003
INTERNATIONAL
ELECTROTECHNICAL
AMENDEMENT 1
AMENDMENT 1
COMMISSION
2004-05
COMITÉ INTERNATIONAL SPÉCIAL DES PERTURBATIONS RADIOÉLECTRIQUES
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
Amendement 1
Spécifications des méthodes et des appareils
de mesure des perturbations radioélectriques
et de l'immunité aux perturbations
radioélectriques –
Partie 2-2:
Méthodes de mesure des perturbations
et de l'immunité – Mesure de la puissance
perturbatrice
Amendment 1
Specification for radio disturbance and immunity
measuring apparatus and methods –
Part 2-2:
Methods of measurement of disturbances and
immunity – Measurement of disturbance power
IEC 2004 Droits de reproduction réservés Copyright - all rights reserved
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
M
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
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CISPR 16-2-2 Amend.1 IEC:2004 – 3 –
FOREWORD
This amendment has been prepared by CISPR subcommittee A: Radio-interference measure-
ments and statistical methods.
The text of this amendment is based on the following documents:
FDIS Report on voting
CIS/A/506/FDIS CIS/A/524/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 the base publication and its amendments will
remain unchanged until 2007. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
_____________
Page 15
3 Definitions
Change the title of this clause as follows:
3 Terms and definitions
Add, after definition 3.23, the following new definitions and abbreviations:
3.24
lead under test
LUT
lead, associated with a EUT, that is the subject of an emission or an immunity test
NOTE In general, a EUT may have one or more leads that are used for interconnections to the mains supply, or
other networks, or for interconnection to auxiliary equipment. These leads are generally electrical cables such as
mains cables, coaxial cables, data bus cables, etc.
3.25
absorbing clamp measurement method
ACMM
method for measurement of disturbance power of an equipment under test (EUT) by using an
absorbing clamp device that is clamped around the lead(s) of the EUT
3.26
absorbing clamp test site
ACTS
test site that is validated to perform disturbance power measurements by using the absorbing
clamp measurement method (ACMM)
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CISPR 16-2-2 Amend.1 IEC:2004 – 5 –
3.27
clamp factor
CF
ratio of the disturbance power of an EUT to the received voltage at the output of the
absorbing clamp
NOTE The clamp factor is a transducer factor of the absorbing clamp.
3.28
clamp reference point
CRP
indication on the outside of the absorbing clamp that is related to the longitudinal position of
the front edge of the current transformer within the clamp and is used to define the horizontal
position of the clamp during the measurement
3.29
slide reference point
SRP
end of the clamp slide where the EUT is located and which is used to define the horizontal
distance to the clamp reference point (CRP) of the absorbing clamp during the measurement
procedure
Page 41
7 Measurements using the absorbing clamp, 30 MHz to 1 000 MHz
Replace the existing title and text of Clause 7 by the following:
7 Measurements using the absorbing clamp
7.1 Introduction
For small equipments under test (EUTs) connected only by one mains lead, or another type of
lead, the absorbing clamp measurement method (ACMM) offers an alternative to the radiated
emission measurement method. The ACMM determines the disturbance power by using an
absorbing clamp. The advantages of the ACMM with respect to the radiated emission test are
mainly the reduced measurement time and reduced cost of the test site.
The basis of the ACMM is the recognition that radiated emissions from electrically small
equipment (see 7.2.2) can primarily be attributed to common mode currents flowing on e.g.,
the mains lead attached to the equipment. The disturbance potential of an EUT having one
external lead may be taken as the power it could supply to its lead acting as a radiating
antenna. This power is assumed to be nearly equal to that supplied by the EUT to the
absorbing clamp placed around the lead under test (LUT) at the position where the measured
common mode current is maximum. An exact model of the ACMM is not available. This makes
the uncertainty considerations and the comparison between the radiated emission
measurement method and the ACMM difficult. The historical background of the absorbing
clamp is described in detail in Annex A.
This clause establishes the general requirements for the measurement of disturbance power
produced at the leads of a EUT. For specific products, more specific measurement
procedures and operating conditions may be necessary. The limitations of the ACMM are
stated in 7.2. The calibration and validation methods related to the ACMM are given in
Clause 4 of CISPR 16-1-3. Measurement instrumentation uncertainty considerations on the
ACMM are described in CISPR 16-4-2.
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CISPR 16-2-2 Amend.1 IEC:2004 – 7 –
7.2 Application of the absorbing clamp measurement method
The applicability (scope) of this ACMM is limited. The applicability of the ACMM for certain
categories of products shall be decided by the product committees, by taking into account the
limitations given in the following subclauses. The precise measuring procedure and its
applicability has to be specified for each category of products in the product standard.
7.2.1 Frequency range
The ACMM as described in this clause may be applied to measure the disturbance power of
an EUT between 30 MHz and 1 000 MHz.
7.2.2 EUT unit dimensions
The EUT unit is the housing of the EUT without its connecting leads. The ACMM is most
accurate for EUT units having dimensions typically smaller than a quarter of a wavelength of
the highest measured frequency and with one or more leads as the main source of
disturbance radiation. If the dimensions of the EUT unit approach a quarter of a wavelength of
the highest measuring frequency, then direct radiation of the EUT unit may occur. Then, the
ACMM may not be suitable to assess the full radiation properties of the EUT. In general, the
method is most useful for small EUTs and in the frequency range of 30 MHz to 300 MHz. The
ACMM is applicable to both tabletop and floor standing EUTs.
7.2.3 LUT requirements
Initially, the ACMM is applied for EUTs with a single mains lead (see Annex A). When the
EUT has external leads other than a mains lead, also those leads can radiate disturbances.
These auxiliary leads may be connected to an auxiliary unit. The ACMM can also be used to
measure these leads. The disturbance contribution of such auxiliary leads connected to
auxiliary apparatus depends on the length of the auxiliary lead with respect to the wavelength.
If length of the auxiliary lead is larger than half a wavelength of the highest measurement
frequency, then the contribution of this auxiliary lead shall be taken into account in the
measurement procedure. Product standards shall give specific information on the treatment of
auxiliary leads (like extension of these leads), the set-up of these auxiliary leads and auxiliary
apparatus in order to enable reproducibility of the disturbance measurement.
If the auxiliary lead is permanently attached to the appliance and to the auxiliary apparatus
and if the length of the auxiliary lead is less than a half wavelength at the highest frequency,
then measurements are not to be made on these leads.
7.3 Requirements for measurements instrumentation and test site
A schematic drawing of the ACMM is given in Figure 5. The following requirements apply for
the various parts of the instrumentation and for the test site.
7.3.1 Measuring receiver
The measuring receiver shall comply with the requirements of CISPR 16-1-1. When using
spectrum analyzers or scanning receivers, the recommendations given in Annex B shall be
considered.
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CISPR 16-2-2 Amend.1 IEC:2004 – 9 –
7.3.2 Absorbing clamp assembly
The absorbing clamp assembly consists of the following parts:
a) absorbing clamp (includes internally the current transformer and absorbers along the LUT
and measurement cable; see Figure 5);
b) 6 dB attenuator;
c) measurement cable.
The absorbing clamp assembly shall comply with the requirements given in Clause 4 of
CISPR 16-1-3. The clamp factor (CF) of this absorbing clamp assembly shall be determined in
accordance with the measurement procedure given in Clause 4 of CISPR 16-1-3. Also the
decoupling factors of the absorbing clamp assembly shall be checked in accordance with the
measurement procedures given in Clause 4 of CISPR 16-1-3.
The clamp reference point (CRP) indicates the longitudinal position of the front edge of the
current transformer within the clamp. This reference point is used to define the position of the
clamp during the measurement procedure. The CRP shall be indicated on the outside housing
of the absorbing clamp.
Measurement
receiver
Absorber
(ferrite rings) 6 dB attenuator
Clamp ref.
Coaxial measurement cable
point (CRP)
EUT
Absorbing clamp moved over
lead under test to obtain max.
Isolation
Lead under
Reading on receiver
transformer
Current
test
Absorber
(optionally)
transformer
(ferrite rings)
Mains
Absorbing clamp
connection
IEC 511/04
NOTE 1 The 6-dB attenuator and the measurement cable are integral parts of the absorbing clamp and shall be
calibrated together.
NOTE 2 The 6-dB attenuator may be located inside the absorbing clamp unit.
Figure 5 – Schematic drawing of the absorbing clamp measurement method
7.3.3 Absorbing clamp test site requirements
The absorbing clamp test site (ACTS) is a site that is used for application of the ACMM. The
ACTS is specified in detail in Clause 4 of CISPR 16-1-3, and its performance shall be
validated in accordance with the procedure given in CISPR 16-1-3. The ACTS can be either
an outdoor or indoor facility and includes the following elements (Figure 6):
• a non-metallic table for support of the EUT unit;
• the clamp slide to support the LUT and the absorbing clamp;
• a moveable support or hook system for the absorbing clamp measurement cable;
• auxiliary means such as a rope to move the absorbing clamp.
The above ACTS elements shall be included in the ACTS validation procedure.
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CISPR 16-2-2 Amend.1 IEC:2004 – 11 –
The near end of the clamp slide (at the side of the EUT) is denoted as the slide reference
point (SRP, see Figure 6). This SRP is used to define the horizontal distance to the CRP.
Some of the requirements for the above mentioned elements of the ACTS that are specified in
detail in Clause 4 of CISPR 16-1-3 are repeated below for convenience.
a) The length of the clamp slide shall ensure that the absorbing clamp can be moved over
such a distance that the maximum disturbance power is measured at the lowest frequency
of 30 MHz. The length of the clamp slide shall be (6 ± 0,05) m.
NOTE 1 In theory, the length of the clamp slide is determined by the sum of the theoretical maximum
scanning length (over a half wavelength = 5 m at 30 MHz), the distance between the SRP and the CRP
(0,1 m), and the length of the absorbing clamp (0,7 m) and a margin to accommodate lead fixtures at the end
(0,1 m). This gives a total length of 5,9 m for the clamp slide. For reproducibility reasons, the length of clamp
slide is fixed to 6 m (and not minimally 6 m).
b) The scanning distance of the absorbing clamp shall be 5 m. Consequently, the CRP shall
move between 0,1 m and 5,1 m from the SRP.
c) The height of the clamp slide shall be 0,8 m ± 0,05 m for both tabletop and floor standing
EUTs. Consequently, the height of the LUT shall be nearly 0,8 m above the floor of the
site. It should be noted that within the absorbing clamp, the height of the LUT above the
floor will be a few centimetres larger.
d) The EUT table, the clamp slide and the auxiliary means (rope) shall be non-reflecting,
non-conducting and the dielectric properties shall be close to the dielectric properties of
air. In this way, these items (EUT table, clamp slide and other auxiliary means close to the
EUT and LUT) are electromagnetically transparent (neutral). In addition to material
properties, the material (thickness and construction) is of importance as well. Typically,
dry wood is an adequate material for the construction of the EUT table and the clamp slide
between 30 MHz and 300 MHz.
NOTE 2 The requirements and validation methods for EUT positioning tables and antenna masts are
1)
presented in CISPR 16-1-3 Ed.2 . It is suggested to apply material with a relative permittivity ε < 1,5. The
r
influence of the material and construction of the EUT table and the clamp slide may be significant for
frequencies above 300 MHz. See CISPR 16-1-3 Ed.2 for further information and guidance.
7.4 Ambient requirements
The ambient noise level present at the ACTS shall comply with the requireme
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