EN 50563:2011

SLOVENSKI STANDARD
01-januar-2012
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External a.c. - d.c. and a.c. - a.c. power supplies - Determination of no-load power and
average efficiency of active modes
Externe AC/DC- und AC/AC-Netzteile - Bestimmung von Nulllast und durchschnittlicher
Effizienz im Betrieb
Sources d'alimentation externes en courant alternatif et en courant continu -
Détermination de la consommation hors charge et du rendement moyen en mode actif
Ta slovenski standard je istoveten z: EN 50563:2011
ICS:
29.200 8VPHUQLNL3UHWYRUQLNL Rectifiers. Convertors.
6WDELOL]LUDQRHOHNWULþQR Stabilized power supply
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50563
NORME EUROPÉENNE
October 2011
EUROPÄISCHE NORM
ICS 29.200
English version
External a.c. -
d.c. and a.c. -
a.c. power supplies – Determination of no-load power and average
efficiency of active modes
Sources d'alimentation externes en Externe AC/DC- und AC/AC-Netzteile -
courant alternatif et en courant continu - Bestimmung von Nulllast und
Détermination de la consommation hors durchschnittlicher Effizienz im Betrieb
charge et du rendement moyen en mode
actif
This European Standard was approved by CENELEC on 2011-10-10. 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, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50563:2011 E
Contents
For e wor d . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
3.1 Equipment related definitions . 6
3.2 Measurement related definitions . 6
4 Information and instructions for use . 8
4.1 Information to be provided on or with the external power supply . 8
4.2 Instructions for use . 8
5 General conditions for measurement . 8
5.1 General . 8
5.2 Test room . 8
5.3 Power supply . 9
5.4 Power measuring instruments . 9
6 Measurements . 9
6.1 General . 9
6.2 Preparation of the external power supply . 9
6.3 Load conditions. 9
6.4 Test load . 10
6.5 Test set-up . 10
6.6 Measurement uncertainty . 11
6.7 Testing sequence:. 11
6.8 Efficiency calculation . 12
6.9 Calculation of power dissipation by the external power supply . 12
7 Test report . 12
7.1 Product details . 12
7.2 Test parameters . 12
7.3 Test and laboratory details . 13
7.4 Test data . 13
Annex A (informative) Test report template . 14
Bibliography . 16
Figure
Figure 1 - Test set-up . 11
Tables
Table 1 - Load conditions for the external power supply . 10
Table 2 – Required reported data (measured and calculated) . 12

– 3 – EN 50563:2011
Foreword
This document (EN 50563:2011) has been prepared by the Technical Committee CENELEC
TC 108X, Safety of electronic equipment within the fields of audio/video, information technology and
communication technology and the Technical Committee CENELEC TC 59X, Performance of
household and similar electrical appliances.

The following dates are fixed:

(dop) 2012-10-10
• latest date by which this document
has to be implemented at national
level by publication of an identical
national standard or by endorsement
(dow) 2014-10-10
• latest date by which the national
standards 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 [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
__________
Introduction
This European Standard was written in response to an EC mandate requesting the creation of a
harmonised standard providing a reliable, accurate and reproducible method of measuring the no-
load power consumption and determining the average efficiency of active modes for external power
supplies, which takes into account the generally recognised state of the art measurement methods.
This standard makes extensive reference to EN 50564 Electrical and electronic household and
office equipment - Measurement of low power consumption, which was also prepared under an EC
mandate to support the ecodesign Directive. Other provisions are based on the test method
published by the EPA and the Australian/NZ Standard AS/NZS 4665.1.
The methods defined in this standard are intended to cover no-load power consumption and
average efficiency of active modes for a.c. - a.c. and a.c. – d.c. external power supplies.
The aim is to ensure this European Standard is compatible with the objectives of EU legislation for
ecodesign. This standard is applicable to a wider range of products than EC Regulation
No 278/2009.
– 5 – EN 50563:2011
1 Scope
This European Standard specifies methods of measurement of electrical power consumption, and
the reporting of results, for external power supplies. This standard is applicable to external power
supplies with a rated input voltage within the range 100 V a.c. to 250 V a.c. having a single output
with a rated output power not exceeding 250 W and a rated output voltage not exceeding 230 V a.c.
or 325 V d.c. The output voltage may be either at a fixed voltage, or at a voltage which is user
selectable, or at a voltage that is automatically selectable by the external power supply so as to be
compatible with one or more product-loads.

NOTE 1  This document has been written in particular to support EC Regulation No 278/2009 for the measurement of no-
load condition electric power and average efficiency of active modes for external power supplies.
NOTE 2  This standard does not specify safety requirements for products nor safety precautions to be taken by those
performing measurements. It does not specify minimum performance requirements, nor does it set maximum limits on
power or energy consumption.
2 Normative references
The following referenced documents are indispensable for the application 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 50564:2011, Electrical and electronic household and office equipment – Measurement of low
power consumption (IEC 62301:2011, modified)
IEC 60050-131:2002, International Electrotechnical Vocabulary – Part 131: Circuit theory
IEC 60050-300:2001, International Electrotechnical Vocabulary – Electrical and electronic
measurements and measuring instruments – Part 311: General terms relating to measurements –
Part 312: General terms relating to electrical measurements – Part 313: Types of electrical
measuring instruments – Part 314: Specific terms according to the type of instrument

3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-131:2002 and
IEC 60050-300:2001 and the following apply.
Throughout this standard the term “power” is used to refer to “active power” unless otherwise
specifically stated
3.1 Equipment related definitions
3.1.1
external power supply
void
NOTE 1  Refer to relevant legislation.
NOTE 2  EC Regulation 278/2009 defines External Power Supply as follows:
‘external power supply’ means a device which meets all of the following criteria:
a) it is designed to convert alternating current (AC) power input from the mains power source input into lower voltage
direct current (DC) or AC output;
b) it is able to convert to only one DC or AC output voltage at a time;
c) it is intended to be used with a separate device that constitutes the primary load;
d) it is contained in a physical enclosure separate from the device that constitutes the primary load;
e) it is connected to the device that constitutes the primary load via a removable or hard-wired male/-female electrical
connection, cable, cord or other wiring;
f) it has nameplate output power not exceeding 250 Watts;
g) it is intended for use with electrical and electronic household and office equipment as referred to in Article 2(1) of
Regulation (EC) No 1275/2008.
3.1.2
rated input frequency
a.c. input frequency of the external power supply, as specified by the manufacturer
3.1.3
rated input voltage
a.c. input voltage of the external power supply, as specified by the manufacturer
3.1.4
rated output current
output current of the external power supply, as specified by the manufacturer
NOTE In EC Regulation 278/2009 the corresponding term is “nameplate output current”.
3.1.5
rated output power
output power of the external power supply, as specified by the manufacturer
NOTE In EC Regulation 278/2009 the corresponding term is “nameplate output power” (Po).
3.1.6
rated output voltage
output voltage of the external power supply, as specified by the manufacturer
NOTE In EC Regulation 278/2009 the corresponding term is “nameplate output voltage”.
3.2 Measurement related definitions
3.2.1
active mode
void
NOTE 1  Refer to relevant legislation.
NOTE 2  EC Regulation 278/2009 defines active mode as follows:

– 7 – EN 50563:2011
‘active mode’ means a condition in which the input of an external power supply is connected to the mains power source
and the output is connected to a load.
3.2.2
active mode efficiency
void
NOTE 1  Refer to relevant legislation.
NOTE 2  EC Regulation 278/2009 defines Active mode efficiency as follows:
‘active mode efficiency’ means the ratio of the power produced by an external power supply in active mode to the input
power required to produce it.
NOTE 3  The active mode e
...