SIST EN 50715:2022

Electromagnetic compatibility - Radio frequency emission - Statistical considerations in the determination of compliance for mass-produced products with requirements for unwanted radio frequency emission

To provide a Standard (not TR)
This standard to provide  statistical methods  for  the determination of compliance with radio frequency emission limits for mass-produced products.
This standard to be derived from the basic EMC technical report  CISPR TR 16-4-3   "Specification for radio disturbance and immunity measuring apparatus and methods - Part 4-3: Uncertainties, statistics and limit modelling - Statistical considerations in the determination of EMC compliance of mass-produced products."

Elektromagnetische Verträglichkeit - Hochfrequente Störaussendungen - Statistische Betrachtungen bei der Bestimmung der Übereinstimmung von seriengefertigten Produkten mit Anforderungen zur unerwünschten hochfrequenten Störaussendung

Compatibilité électromagnétique - Emissions radiofréquences - Considérations statistiques pour la détermination de la conformité des produits de série aux exigences en matière d’émissions radiofréquences indésirablesCompatibilité électromagnétique - Emissions radiofréquences - Considérations statistiques pour la détermination de la conformité des produits de série aux exigences en matière d’émissions radiofréquences indésirables

Le présent document spécifie les considérations statistiques relatives à l’évaluation des émissions radiofréquences indésirables des produits de série.
NOTE 1   Il est fondé sur le CISPR TR 16-4-3.
Les raisons qui motivent ces considérations statistiques sont les suivantes:
a)   l'objectif poursuivi avec la diminution des perturbations est que la majorité des produits à homologuer ne doivent pas engendrer de perturbations;
b)   il convient que les limites CISPR soient adaptées à l’homologation de type des produits de série ainsi qu’à l’homologation des produits fabriqués à l’unité;
c)   pour assurer la conformité des produits de série aux limites CISPR, des techniques statistiques doivent être appliquées;
d)   il est important pour le commerce international, que les limites soient interprétées de la même manière dans tous les pays.
Par conséquent, le présent document spécifie des exigences et fournit des recommandations fondées sur les techniques statistiques. La conformité aux exigences de CEM du présent document des produits de série est fondée sur l’application de techniques statistiques qui rassurent le consommateur, avec un degré de confiance de 80 %, sur le fait que 80 % d'un type de produit donné soumis à évaluation sont conformes aux limites en matière d’émissions radiofréquences indésirables.
Le présent document ne définit pas de limite ou de méthode de mesure. Il ne peut être utilisé qu’après la réalisation des mesurages des émissions radiofréquences indésirables selon la norme applicable en matière d’émissions radiofréquences indésirables.
NOTE 2   L’Article 4 fournit des exigences générales relatives à l’interprétation des limites de perturbations radioélectriques CISPR et spécifie différentes méthodes qui peuvent être utilisées en variante. L’Article 5 fournit des exigences spécifiques pour certains groupes de produits.
NOTE 3   Le présent document ne donne pas de méthode de calcul concernant le risque encouru par le fabricant, qu’un type de produit soit accepté lors d'une deuxième évaluation statistique. Le document CISPR TR 16 4 3, Edition 2.1, donne dans son Annexe D des informations complémentaires sur la probabilité d’acceptation lorsqu’on répète un mesurage.

Elektromagnetna združljivost - Radiofrekvenčno sevanje - Statistični vidiki ugotavljanja skladnosti množično proizvedenih izdelkov z zahtevami za neželena radiofrekvenčna sevanja

Za zagotovitev standarda (ne tehničnega poročila)
Ta standard določa statistične metode za ugotavljanje skladnosti z mejnimi vrednostmi radiofrekvenčnega sevanja za množično proizvedene izdelke.
Ta standard izhaja iz osnovnega tehničnega poročila EMC CISPR TR 16-4-3 »Specifikacija za merilne naprave in metode za merjenje radijskih motenj in odpornosti - 4-3. del: Modeliranje negotovosti, statistike in mejnih vrednosti - Statistični vidiki in določanje skladnosti z EMC množično proizvedenih izdelkov«.

General Information

• Status: Published
• Public Enquiry End Date: 29-Jul-2021
• Publication Date: 23-Aug-2022
• ICS: 33.100.01 - Electromagnetic compatibility in general
• Technical Committee: EMC - Electromagnetic compatibility
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Aug-2022
• Due Date: 06-Oct-2022
• Completion Date: 24-Aug-2022
• Ref Project: EN 50715:2022 - Electromagnetic compatibility - Radio frequency emission - Statistical considerations in the determination of compliance for mass-produced products with requirements for unwanted radio frequency emission

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 50715:2022
01-september-2022
Elektromagnetna združljivost - Radiofrekvenčno sevanje - Statistični vidiki
ugotavljanja skladnosti množično proizvedenih izdelkov z zahtevami za neželena
radiofrekvenčna sevanja
Electromagnetic compatibility - Radio frequency emission - Statistical considerations in
the determination of compliance for mass-produced products with requirements for
unwanted radio frequency emission
Elektromagnetische Verträglichkeit - Hochfrequente Störaussendungen - Statistische
Betrachtungen bei der Bestimmung der Übereinstimmung von seriengefertigten
Produkten mit Anforderungen zur unerwünschten hochfrequenten Störaussendung
Compatibilité électromagnétique - Emissions radiofréquences - Considérations
statistiques pour la détermination de la conformité des produits de série aux exigences
en matière d’émissions radiofréquences indésirablesCompatibilité électromagnétique -
Emissions radiofréquences - Considérations statistiques pour la détermination de la
conformité des produits de série aux exigences en matière d’émissions radiofréquences
indésirables
Ta slovenski standard je istoveten z: EN 50715:2022
ICS:
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
SIST EN 50715:2022 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50715:2022

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SIST EN 50715:2022


EUROPEAN STANDARD EN 50715

NORME EUROPÉENNE

EUROPÄISCHE NORM July 2022
ICS 33.100.10
English Version
Electromagnetic compatibility - Radio frequency emission -
Statistical considerations in the determination of compliance for
mass-produced products with requirements for unwanted radio
frequency emission
Compatibilité électromagnétique - Emissions Elektromagnetische Verträglichkeit - Hochfrequente
radiofréquences - Considérations statistiques pour la Störaussendungen - Statistische Betrachtungen bei der
détermination de la conformité des produits de série aux Bestimmung der Übereinstimmung von seriengefertigten
exigences en matière d'émissions radiofréquences Produkten mit Anforderungen zur unerwünschten
indésirables hochfrequenten Störaussendung
This European Standard was approved by CENELEC on 2022-06-06. 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,
Turkey 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 50715:2022 E

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SIST EN 50715:2022
EN 50715:2022 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Interpretation of CISPR radio disturbance limits . 5
4.1 Significance of a CISPR limit . 5
4.2 General . 5
4.2.1 Equipment producing continuous disturbance . 5
4.2.2 Equipment producing discontinuous disturbance (clicks) . 5
4.3 Compliance with limits for equipment in large-scale production . 5
4.3.1 General . 5
4.3.2 Method based on a general margin to the limit . 6
4.3.3 Test based on the non-central t-distribution . 6
4.3.4 Test based on the binomial distribution . 7
4.3.5 Larger sample size . 8
5 Definition of sub-ranges for the test based on the non-central t-distribution . 8
5.1 General . 8
5.2 Definition of subranges for products in the scope of EN 55011 . 8
5.3 Definition of subranges for products in the scope of EN 55014-1 . 8
5.4 Definition of subranges for products in the scope of EN 55015 . 9
Figure
Figure 1 — Unit-to-unit variation of the sub-range maximum . 7
Tables
Table 1 — General margin to the limit for statistical evaluation . 6
Table 2 — Factor k for the application of the non-central t-distribution . 6
Table 3 — Application of the binomial distribution. 7
2

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SIST EN 50715:2022
EN 50715:2022 (E)
European foreword
This document (EN 50715:2022) has been prepared by CLC/TC 210 “Electromagnetic Compatibility (EMC)”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2023-06-06
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2025-06-06
conflicting with this document have to be
withdrawn

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.

3

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SIST EN 50715:2022
EN 50715:2022 (E)
1 Scope
This document specifies statistical considerations for the evaluation of unwanted radio frequency emissions of
mass-produced products.
NOTE 1 It is based on CISPR TR 16-4-3.
The reasons for such statistical considerations are:
a) that the abatement of interference aims that the majority of the products to be approved shall not cause
interference;
b) that the CISPR limits should be suitable for the purpose of type approval of mass-produced products as
well as approval of single-produced products;
c) that to ensure compliance of mass-produced products with the CISPR limits, statistical techniques have to
be applied;
d) that it is important for international trade that the limits shall be interpreted in the same way in every country.
Therefore, this document specifies requirements and provides guidance based on statistical techniques. EMC
compliance of mass-produced products with the requirements of this document are based on the application of
statistical techniques that reassure the consumer, with an 80 % degree of confidence, that 80 % of the products
of a type being investigated comply with the limits for unintended radio frequency emission.
This document does not define limits or measuring methods. It can be used only after measurements of
unwanted radio frequency emissions have been performed according to the applicable standard for the
unwanted radio frequency emissions.
NOTE 2 Clause 4 gives some general requirements on the interpretation of CISPR radio disturbance limits and specifies
different methods, which can be used alternatively. Clause 5 gives some specific requirements for certain product groups.
NOTE 3 This document does not give a calculation method about the manufacturer’s risk, whether a type of products
will be accepted during a second statistical evaluation. More information on the acceptance probability for a repeated
measurement is given in CISPR TR 16-4-3, Edition 2.1, Annex D.
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.
EN 55011, Industrial, scientific and medical equipment  Radio-frequency disturbance characteristics  Limits
and methods of measurement
EN 55014-1, Electromagnetic compatibility  Requirements for household appliances, electric tools and similar
apparatus  Part 1: Emission
EN 55015, Limits
...

SLOVENSKI STANDARD
oSIST prEN 50715:2021
01-julij-2021
Specifikacija za merilne naprave in metode za merjenje radijskih motenj in
odpornosti - 4-3. del: Modeliranje negotovosti, statistike in mejnih vrednosti -
Statistični vidiki in določanje skladnosti z EMC serijsko proizvedenih izdelkov
Specification for radio disturbance and immunity measuring apparatus and methods -
Part 4-3: Uncertainties, statistics and limit modelling - Statistical considerations in the
determination of EMC compliance of mass-produced products
Ta slovenski standard je istoveten z: prEN 50715:2021
ICS:
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
oSIST prEN 50715:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50715:2021

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oSIST prEN 50715:2021

EUROPEAN STANDARD DRAFT
prEN 50715
NORME EUROPÉENNE

EUROPÄISCHE NORM

May 2021
ICS
English Version
Electromagnetic compatibility - Radio frequency emission -
Statistical considerations in the determination of compliance for
mass-produced products with emission requirements
Compatibilité électromagnétique - Émissions To be completed
radiofréquences - Considérations statistiques pour la
détermination de la conformité des produits de série aux
exigences en matière d'émissions
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2021-07-30.

It has been drawn up by CLC/TC 210.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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,
Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.



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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 68318 Ref. No. prEN 50715:2021 E

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oSIST prEN 50715:2021
prEN 50715:2021 (E)
9 Contents Page
10 European foreword . 4
11 INTRODUCTION . 5
12 1 Scope . 6
13 2 Normative references . 6
14 3 Terms and Definitions . 7
15 4 Interpretation of CISPR radio disturbance limits . 7
16 4.1 Significance of a CISPR limit . 7
17 4.2 General . 7
18 4.2.1 Equipment producing continuous disturbance . 7
19 4.2.2 Equipment producing discontinuous disturbance (clicks) . 7
20 4.3 Compliance with limits for equipment in large-scale production . 7
21 4.3.1 General . 7
22 4.3.2 Method based on a general margin to the limit . 8
23 Table 1 – General margin to the limit for statistical evaluation . 8
24 4.3.3 Test based on the non-central t-distribution . 8
25 Table 2 — Factor k for the application of the non-central t-distribution. 8
26 Figure 1 Unit-to-unit variation of the sub-range maximum . 9
27 4.3.4 Test based on the binomial distribution . 9
28 Table 3 — Application of the binomial distribution . 9
29 4.3.5 Larger sample size . 10
30 5 Definition of sub-ranges for the test based on the non-central t-distribution . 10
31 5.1 General . 10
32 5.2 Definition of subranges for products in the scope of EN 55011 . 10
33 5.3 Definition of subranges for products in the scope of EN 55014-1 . 10
34 5.4 Definition of subranges for products in the scope of EN 55015 . 11
35
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oSIST prEN 50715:2021
prEN 50715:2021 (E)
36 European foreword
37 This document [CLC standard reference] has been prepared by CLC/TC/SR/SC XX "Title".
38 This document is currently submitted to the Enquiry/ Primary Questionnaire.
39 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be
(to be confirmed or
withdrawn modified when voting)
4

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oSIST prEN 50715:2021
prEN 50715:2021 (E)
40 INTRODUCTION
41 This introduction is for information of the CENELEC NC’s only and will not be part of the final standard.
42 The creation of this standard is part of the so called “long term solution” for the problem, that the
43 European Commission does not want to list any standard under the European EMCD or RED, as long
44 as it contains a reference to the significance of CISPR-limits for type approved equipment.
45 Note: The significance of CISPR-limits for type approved equipment is that on a statistical basis at least
46 80 % of the mass-produced equipment complies with the limits with at least 80 % confidence. which
47 says that on a statistical basis at least 80 % of the mass-produced equipment shall comply with the limits
48 with at least 80 % confidence.
49 This “long term solution” contained the following steps:
50 1. CENELEC produces a separate document, containing all provisions for the statistical evaluation of
51 RFI measurements on mass produced equipment.
52 This document will not be listed under any Directive, but shall define the state of the art in Europe
53 for the evaluation of radio frequency emission of mass produced products.
54 2. CENELEC deletes all text about statistical considerations in the European versions of the CISPR
55 radio emission standards like CISPR 11, CISPR 14-1 and CISPR 15.
56 3. With these common modifications, the European radio emission standards will be again listed under
57 the EMCD and RED.
58 This standard is based on CISPR TR 16-4-3 “SPECIFICATION FOR RADIO DISTURBANCE AND
59 IMMUNITY MEASURING APPARATUS AND METHODS – Part 4-3: Uncertainties, statistics and limit
60 modelling – Statistical considerations in the determination of EMC compliance of mass-produced
61 products”
62 Additionally it contains specific provisions, given only in the product standards CISPR 11, CISPR 14-1
63 and CISPR 15.
5

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oSIST prEN 50715:2021
prEN 50715:2021 (E)
64 1 Scope
65 This document defines statistical considerations for the evaluation of radio frequency emission of mass
66 produced products.
67 Note 1 It is based on CISPR TR 16-4-3.
68 The reasons for such statistical considerations are:
69 a) that the abatement of interference aims that the majority of the products to be approved shall not
70 cause interference;
71 b) that the CISPR limits should be suitable for the purpose of type approval of mass- produced
72 products as well as approval of single-produced products;
73 c) that to ensure compliance of mass-produced products with the CISPR limits, statistical techniques
74 have to be applied;
75 d) that it is important for international trade that the limits shall be interpreted in the same way in every
76 country;
77 Therefore, this document specifies requirements and provides guidance based on statistical techniques.
78 EMC compliance of mass-produced products with the requirements of this document are based on the
79 application of statistical techniques that reassure the consumer, with an 80 % degree of confidence, that
80 80 % of the products of a type being investigated comply with the emission limits.
81 This document does not define limits or measuring methods. It can be used only after radio frequency
82 emission measurements have been performed according to the applicable radio frequency emission
83 standard.
84 Note 2 Clause 4 gives some general requirements on the interpretation of CISPR radio disturbance limits and
85 specifies different methods, which can be used alternatively. Clause 5 gives some specific requirements for certain
86 product groups.
87 Note 3 The 80 %/80 % rule protects the consumer from non-compliant products, but it says hardly anything
88 about the manufacturer’s risk, whether a type of products will be accepted during a second statistical evaluation.
89 More information on the acceptance probability for a repeated measurement is given in CISPR 16-4-3.
90 2 Normative references
91 The following documents are referred to in the text in such a way that some or all of their content
92 constitutes requirements of this document. For dated references, only the edition cited applies. For
93 undated references, the latest
...