IEC 62442-2:2022
(Main)Energy performance of lamp controlgear - Part 2: Controlgear for discharge lamps (excluding low-pressure mercury fluorescent lamps) - Method of measurement to determine the efficiency of controlgear
Energy performance of lamp controlgear - Part 2: Controlgear for discharge lamps (excluding low-pressure mercury fluorescent lamps) - Method of measurement to determine the efficiency of controlgear
IEC 62442-2:2022 defines a measurement method of the power losses of electromagnetic controlgear, the total input power and the standby power of electronic controlgear for discharge lamps (excluding low-pressure mercury fluorescent lamps). A calculation method of the efficiency of controlgear for discharge lamp(s) is also defined. It is assumed that the controlgear are designed for use on DC supplies up to 1 000 V and/or AC supplies up to 1 000 V at 50 Hz or 60 Hz. This third edition cancels and replaces the second edition published in 2018. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- the title of Part 2 has been modified;
- this edition has been harmonized with IEC 62442-1 and IEC 62442-3;
- the reference to and use of the measurement methods for non-active power consumption in accordance with IEC 63103 have been added.
Performance énergétique des appareillages de lampes - Partie 2: Appareillages des lampes à décharge (à l'exclusion des lampes à fluorescence à vapeur de mercure à basse pression) - Méthode de mesurage pour la détermination du rendement des appareillages
L'IEC 62442-2:2022 définit une méthode de mesurage des pertes de puissance de l'appareillage de commande électromagnétique, de la puissance d'entrée totale et de la puissance de veille de l'appareillage électronique des lampes à décharge (à l'exclusion des lampes à fluorescence à vapeur de mercure à basse pression). Une méthode de calcul du rendement des appareillages de lampes à décharge est également définie. Par hypothèse, les appareillages sont conçus pour des alimentations en courant continu jusqu'à 1 000 V et/ou des alimentations en courant alternatif jusqu'à 1 000 V à 50 Hz ou 60 Hz. Cette troisième édition annule et remplace la deuxième édition parue en 2018. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- le titre de la Partie 2 a été modifié;
- cette édition a été harmonisée avec l'IEC 62442-1 et l'IEC 62442-3;
- des références à l'IEC 63103 ont été ajoutées afin d'appliquer les méthodes de mesurage de la consommation de puissance en mode non actif.
La version française de cette norme n'a pas été soumise au vote.
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IEC 62442-2 ®
Edition 3.0 2022-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Energy performance of lamp controlgear –
Part 2: Controlgear for high intensity discharge lamps (excluding low-pressure
mercury fluorescent lamps) – Method of measurement to determine the
efficiency of controlgear
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IEC 62442-2 ®
Edition 3.0 2022-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Energy performance of lamp controlgear –
Part 2: Controlgear for high intensity discharge lamps (excluding low-pressure
mercury fluorescent lamps) – Method of measurement to determine the efficiency of
controlgear
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.140.99 ISBN 978-2-8322-5324-3
– 2 – IEC 62442-2:2022 RLV © IEC 2022
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 General . 7
4.1 Applicability .
4.1 General notes on tests . 8
4.2 Controllable controlgear . 9
4.3 Multi-lamp type controlgear . 9
4.4 Measurement uncertainty . 9
4.5 Sampling of controlgear for testing . 9
4.6 Size of the test sample. 9
4.7 Power supply . 9
4.8 Supply voltage waveform . 10
4.9 Instrument accuracy . 10
4.10 Multi-rated voltage controlgear . 11
4.11 Sensor and network connections . 11
5 Method of measurement of the input power and calculation of the efficiency of
controlgear for high intensity discharge lamps . 11
5.1 Measurement set-up: electromagnetic controlgear . 11
5.2 Efficiency calculation: electromagnetic controlgear . 12
5.3 Measurement set-up: electronic controlgear . 12
5.4 Efficiency calculation: electronic controlgear . 13
5.5 Standby power measurement of electronic controlgear . 13
5.6 Networked standby power measurement of electronic controlgear . 14
5.7 Reporting of power measurements . 15
Bibliography . 16
Figure 1 – Measurement set-up for electromagnetic controlgear . 11
Figure 2 – Measurement set-up for electronic controlgear . 12
Figure 3 – Measurement setup of the standby power of electronic controlgear .
Table 1 – Typical nominal electricity supply details for some regions . 10
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENERGY PERFORMANCE OF LAMP CONTROLGEAR –
Part 2: Controlgear for high intensity discharge lamps
(excluding low-pressure mercury fluorescent lamps) –
Method of measurement to determine the efficiency of controlgear
FOREWORD
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This redline version of the official IEC Standard allows the user to identify the changes made
to the previous edition IEC 62442-2:2018. A vertical bar appears in the margin wherever a
change has been made. Additions are in green text, deletions are in strikethrough red text.
– 4 – IEC 62442-2:2022 RLV © IEC 2022
IEC 62442-2 has been prepared by subcommittee 34C: Auxiliaries for lamps, of IEC technical
committee 34: Lighting. It is an International Standard.
This third edition cancels and replaces the second edition published in 2018. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the title of Part 2 has been modified;
b) this edition has been harmonized with IEC 62442-1 and IEC 62442-3;
c) the reference to and use of the measurement methods for non-active power consumption in
accordance with IEC 63103 have been added.
The text of this International Standard is based on the following documents:
Draft Report on voting
34C/1546/FDIS 34C/1549/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 62442 series, published under the general title Energy performance
of lamp controlgear, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under 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.
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ENERGY PERFORMANCE OF LAMP CONTROLGEAR –
Part 2: Controlgear for high intensity discharge lamps
(excluding low-pressure mercury fluorescent lamps) –
Method of measurement to determine the efficiency of controlgear
1 Scope
This part of IEC 62442 defines a measurement method of the power losses of electromagnetic
controlgear, the total input power and the standby power of electronic controlgear for high
intensity discharged discharge lamps (excluding low-pressure mercury fluorescent lamps). A
calculation method of the efficiency of controlgear for high intensity discharged discharge
lamp(s) is also defined.
It is assumed that the controlgear are designed for use on DC supplies up to 1 000 V and/or
AC supplies up to 1 000 V at 50 Hz or 60 Hz.
This document applies to electrical controlgear-lamp circuits comprised solely of the controlgear
and of the lamp(s).
NOTE Requirements for testing individual controlgear during production are not included.
This document specifies the measurement method for the total input power, the standby power
and the calculation method of the lamp controlgear efficiency for all controlgear sold for
domestic and normal commercial purposes operating with high intensity discharge lamps.
This document does not apply to:
– controlgear which form an integral part of lamps;
– controlgear circuits with capacitors connected in series;
– controllable electromagnetic controlgear.
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 60050-845, International Electrotechnical Vocabulary (IEV) – Part 845: Lighting (available
at http://www.electropedia.org)
IEC 61347-1:2015, Lamp controlgear – Part 1: General and safety requirements
IEC 61347-2-9, Lamp controlgear – Part 2-9: Particular requirements for electromagnetic
controlgear for discharge lamps (excluding fluorescent lamps)
IEC 61347-2-12, Lamp controlgear – Part 2-12: Particular requirements for d.c. or a.c. supplied
electronic ballasts for discharge lamps (excluding fluorescent lamps)
IEC 63103:2020, Lighting equipment – Non-active mode power measurement
– 6 – IEC 62442-2:2022 RLV © IEC 2022
IEC TS 63105:2021, Lighting systems and related equipment – Vocabulary
IEC Guide 115:20072021, Application of uncertainty of measurement to conformity assessment
activities in the electrotechnical sector
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-845 and
IEC TS 63105 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
nominal value
suitable approximate quantity value used to designate or identify a component, device or
equipment
Note 1 to entry: To express the "nominal value" of a particular quantity, the term "value" is replaced by the quantity
name; for example, nominal power, nominal voltage, and nominal current.
[SOURCE: IEC 62442-1:20182022, 3.1]
3.2
rated value
quantity value for specified operating conditions of a component, device or equipment
Note 1 to entry: The value and conditions are specified in the relevant standard or assigned by the manufacturer
or responsible vendor.
[SOURCE: IEC 62442-1:2018, 3.3, modified — Note 2 has been deleted.]
value of a quantity, used for specification purposes, declared by the manufacturer or
responsible vendor and established under standard test conditions
Note 1 to entry: To express the "rated value" of a particular quantity, the term "value" is replaced by the quantity
name; for example, rated power, rated voltage, rated current, and rated temperature.
[SOURCE: IEC 60050-845:2020, 845-27-100, modified – Note 2 to entry has been deleted.]
3.3
controlgear
one or more components between the supply and one or more lamps which may can serve to
transform the supply voltage, limit the current of the lamp(s) to the required value, provide
starting voltage and preheating current, prevent cold starting, correct power factor or reduce
radio interference
[SOURCE: IEC 62442-1:20182022, 3.43]
3.4
electromagnetic controlgear
magnetic controlgear
controlgear which by means of inductance, or a combination of inductance and capacitance,
serves mainly to limit the current of the electric lamp(s) to the required value and operates the
lamp(s) at the same frequency as the supply frequency
[SOURCE: IEC 62442-1:2018, 3.5 IEC 60050-845:2020, 845-28-052, modified – The second
preferred term has been added.]
3.5
electronic controlgear
AC and/or DC supplied electronic circuit
including stabilizing elements for starting and operating one or more lamp(s)
3.6
discharge lamp
lamp in which the light is produced, directly or indirectly, by an electric discharge through a gas,
a metal vapour or a mixture of several gases and vapours
3.7
controlgear-lamp circuit
electrical circuit, or part thereof, normally built in a luminaire, consisting of the controlgear and
lamp(s)
[SOURCE: IEC 62442-1:20182022, 3.87]
3.8
standby mode
mode of the controlgear, in which the light source is switched off by a control signal, while the
controlgear remains connected to the mains supply
mode when the equipment is connected to a supply voltage with the
illumination function off, while capable of being activated by an external trigger not being a
trigger from a network
Note 1 to entry: Examples of external triggers are sensing or timing.
[SOURCE: IEC 63103:2020, 3.10, modified – The domain "" has been
replaced with "".]
3.9
networked standby mode
mode when the equipment is connected to a supply voltage with the
illumination function off, while capable of being activated by an external trigger being a trigger
from a network
[SOURCE: IEC 63103:2020, 3.11, modified – The domain "" has been
replaced with "".]
3.10
standby power
average power consumption in the standby mode
Note 1 to entry: Power supplied by controlgear to sensors, network connections and other auxiliaries is not include
in the standby power.
Note 2 to entry: Standby power is expressed in W.
3.11
networked standby power
average power consumption in the networked standby mode
– 8 – IEC 62442-2:2022 RLV © IEC 2022
3.12
total input power
total power consumed by the controlgear-lamp (light source) controlgear-light source circuit
measured at rated input voltage
[SOURCE: IEC 62442-1:2018, 3.13, modified — "supplied to" has been replaced with
"consumed by", "(light source)" has been added and the note has been deleted.]
3.13
efficiency of lamp controlgear
η
MCG
η
ECG
ratio of the output power to lamp(s) and input power of the
controlgear
Note 1 to entry: Detailed measurement methods and conditions are given in Clause 5.
Note 2 to entry: Loads from sensors, network connections or other auxiliaries are disconnected or, if not possible,
otherwise eliminated from the result.
controlgear efficiency
η
CG
ratio of the output power to the lamp(s) and the input power of the controlgear
Note 1 to entry: Loads from sensors, network connections or other auxiliaries are disconnected or, if not possible,
otherwise eliminated from the result.
3.14
multi-lamp type controlgear
single-lamp controlgear designed for the operation of more than one type of lamp with different
electrical characteristics, for example power
3.15
controllable controlgear
controlgear whose light sources operating characteristics can be changed by means of a signal
via mains or control input(s)
Note 1 to entry: Signal control is either wired or wireless.
4 General
4.1 Applicability
The measurement and calculation methods in this document shall only be used for lamp
controlgear which conforms to IEC 61347-2-9 or IEC 61347-2-12.
4.1 General notes on tests
The measurement conditions specified in IEC 61347-1:2015, Clauses H.1, H.2, H.4, H.8, H.9
and H.11 shall be applied unless otherwise specified in this document. The device under test
(DUT) shall be placed according to IEC 61347-1:2015, Figure H.1.
An AC or DC voltage source shall be used to provide input voltage to the DUT. During the tests,
the supply voltage and the frequency shall be maintained constant within ±0,5 % during the
warm-up period. However, during the actual measurement, the voltage shall be adjusted to
within ±0,2 % of the specified testing value.
Unless otherwise specified in IEC 63103, stability of the measurement values (V, A or W) is
given if the data does not deviate by more than 1 % in a time frame of 15 min. If any of these
values vary with time, the power is determined as the arithmetic mean value over a sufficient
period.
4.2 Controllable controlgear
In the case of controllable controlgear, the test shall be carried out with the maximum output
power.
Requirements for other than 100 % light output operation of controllable controlgear and multi-
tapped electromagnetic controlgear are under consideration.
4.3 Multi-lamp type controlgear
If a single-lamp controlgear is designed for different lamp powers then the test shall be carried
out for each lamp.
The test for multi-lamp controlgear shall be carried out with all possible combinations.
4.4 Measurement uncertainty
Measurement uncertainty shall be managed in accordance with the accuracy method in
IEC Guide 115:20072021, 4.4.3.
4.5 Sampling of controlgear for testing
The requirements and tolerances specified in this document are based on the testing of a type
test sample submitted by the manufacturer for that purpose. This sample should consist of units
having characteristics typical of the manufacturer's production and be as close to the production
centre point values as possible.
4.6 Size of the test sample
Tests are carried out with one test specimen.
4.7 Power supply
Where the test voltage and frequency are not defined by national or regional requirements, the
controlgear manufacturer shall declare the nominal voltage(s) at which the given efficiency is
valid.
Test voltage(s) and test frequency(ies) shall be the nominal voltage and the nominal frequency
of the country or region for which the measurement is being determined (refer to Table 1).
– 10 – IEC 62442-2:2022 RLV © IEC 2022
Table 1 – Typical nominal electricity supply details for some regions
a
Country or region
Nominal voltage and frequency
Europe 230 V; 50 Hz
North America 120 V, 277 V; 60 Hz
b
100 V, 200 V; 50/60 Hz
Japan
China 220 V; 50 Hz
Australia and New Zealand 230 V; 50 Hz
South Africa 230 V, 50 Hz
a
Values are for single phase only. Some single phase supply voltages can be double the nominal voltage above
(centre transformer tap). The voltage between two phases of a three-phase system is 1,73 times single phase
values (e.g. 400 V for Europe).
b
50 Hz is applicable for the Eastern part and 60 Hz for the Western part.
The above table can require test voltages additional to those required in IEC 63103.
4.8 Supply voltage waveform
The total harmonic content of the supply voltage when supplying the DUT shall not exceed 3 %;
harmonic content is defined as the root-mean-square (RMS) summation of the individual
components using the fundamental as 100 %.
The ratio of peak value to RMS value of the test voltage (i.e. crest factor) shall be between 1,34
and 1,49.
4.9 Instrument accuracy
For measurement uncertainty and traceability see ISO/IEC Guide 98-3 and IEC Guide 115.
For electromagnetic controlgear, calibrated and traceable AC power meters, power analysers
or digital power meters shall be used.
For electronic controlgear, all output power measurements shall be made with a calibrated and
traceable wideband power analyser or digital power meter.
For measurements made under the scope of this document, measurement instruments with the
following minimum accuracies are to shall be used:
a) for frequencies ≤ 1 kHz
• voltage: 0,5 %
• current: 0,5 %
• power: 1,0 %
• frequency: 0,1 %
b) for frequencies > 1 kHz
• voltage: 1,5 %
• current: 1,0 %
• power: 2,0 %
• frequency: 0,1 %
Stability of the measurement values (V, A or W) is given if the data does not deviate from more
than 1 % in a time frame of 15 min. If any of these values vary with time, the power is determined
as the arithmetic mean value over a sufficient period.
4.10 Multi-rated voltage controlgear
If a controlgear is designed for more than one rated voltage, the controlgear manufacturer shall
declare the rated voltage(s) at which the given efficiency and standby power is valid.
4.11 Sensor and network connections
For the measurement of all kinds of controlgear power (also standby) the power consumed by
all circuits (internal or external) which are not involved in power conversion for the controlgear
operation (e.g. communication devices, external sensors, auxiliary load, battery charging
circuits) shall be excluded from the measurements. If the auxiliary cannot be disconnected, its
effect shall be otherwise eliminated from the result.
NOTE Power consumed by circuits necessary for the proper operation of power conversion is considered in the
measurement (e.g. cooling fan, signalling lighting).
For the measurement of all kinds of controlgear power, the power consumed by all circuits
(internal or external) shall be considered as indicated in IEC 63103.
NOTE although the scope of IEC 63103 is limited to non-active mode power, the principle is also suitable for other
power measurements.
5 Method of measurement of the input power and calculation of the efficiency
of controlgear for high intensity discharge lamps
5.1 Measurement set-up: electromagnetic controlgear
Figure 1 shows the measurement set-up of the power losses of electromagnetic controlgear.
Key
DUT device under test
Figure 1 – Measurement set-up for electromagnetic controlgear
The power losses (P ) of the electromagnetic controlgear will be measured based on the
losses
rated lamp current through the electromagnetic controlgear. Therefore the current through the
electromagnetic controlgear will be adjusted by the test voltage to the current defined in the
data sheet of the lamp(s). Tolerance for the current is ±0,5 %.
The measurements are carried out with a power meter connected to measure the power losses
into the electromagnetic controlgear.
The value of the power losses (P ) is recorded when a steady state has been reached
losses
(temperature of the electromagnetic controlgear).
The measurement sequence is as follows:
1) Connect the DUT according to Figure 1.
2) Switch on the test voltage and adjust the test voltage until the rated lamp current is obtained.
– 12 – IEC 62442-2:2022 RLV © IEC 2022
3) Await the thermal equilibrium and if necessary adjust the test voltage again to match the
rated lamp current.
4) Measure the power losses.
NOTE In the case of independent electromagnetic controlgear which incorporate an ignitor in the same enclosure,
the test is only applicable to the electromagnetic controlgear.
The measurement set-up circuit for constant power controlgear shall also be used in a suitable
way with the current defined in the data sheets of the lamp(s).
5.2 Efficiency calculation: electromagnetic controlgear
For the calculation of the efficiency of electromagnetic controlgear (η ), Equation (1) should
MCG
be used:
P
lamp rated
η =
(1)
MCG
PP+
lamp rated losses
For the calculation of the controlgear efficiency (η ), Equation (1) should be used:
CG
P
lamp rated
η =
(1)
CG
PP+
lamp rated losses
where
P is the lamp power given in the lamp data sheet (in W).
lamp rated
5.3 Measurement set-up: electronic controlgear
Figure 2 illustrates the measurement set-up of the input and the output power of electronic
controlgear.
Key
DUT device under test
R lamp replacement substitution resistor = load resistor
load
NOTE Due Owing to the unstable lamp situation for high intensity discharge lamps and for a good reproducibility,
as a replacement for the lamps, a resistor (R ) is used.
load
Figure 2 – Measurement set-up for electronic controlgear
If R is not given on the lamp data sheet, R is determined by dividing the rated/ or typical
load load
lamp voltage squared by the rated/ or typical lamp power (as applicable). The value of the
resistance shall be noted in the measurement report.
The measurements are carried out with power meters connected to measure the total input
power into the electronic controlgear-lamp circuit and the output power of the controlgear (lamp
power).
The value of the total input power (P ) is recorded when the temperature of the
tot meas
controlgear is stable. The temperature shall not deviate from by more than 1 K per hour.
The supply voltage for the measurement according to Figure 2 is defined in 4.7.
The measurement sequence is as follows:
1) Connect the DUT according to Figure 2.
2) Switch on the mains voltage.
3) Await the thermal equilibrium.
4) Measure the input and the output power.
To obtain a more accurate value of the efficiency, R should be obtained taking into
load
consideration the typical lamp voltage and current for square wave operation.
The measured total input power (P ) of a controlgear-lamp circuit is measured with one
tot meas
electronic lamp controlgear.
5.4 Efficiency calculation: electronic controlgear
For the calculation of the efficiency of controlgear (η ), Equation (2) should be used:
ECG
P
Lamp
η =
(2)
ECG
P
tot meas
For the calculation of the controlgear efficiency (η ), Equation (2) should be used:
CG
P
Lamp
η = (2)
CG
P
tot meas
where
P is the measured total input power into the controlgear-lamp circuit under test
tot meas
(in W);
P is the measured output power of the controlgear under test (lamp power = power
Lamp
at the substitution resistor) in the test circuit (in W).
5.5 Standby power measurement of electronic controlgear
Figure 3 illustrates the measurement setup of the standby power of electronic controlgear.
– 14 – IEC 62442-2:2022 RLV © IEC 2022
Interface
port
Supply Output
DUT
terminals
IEC
Key
DUT device under test
Figure 3 – Measurement setup of the standby power of electronic controlgear
The output circuit (terminals) of the controlgear is open (not connected to a substitution
resistor).
The measurements are carried out with a power meter connected to measure the total input
power into the electronic controlgear.
If a controlgear is also designed for functions other than lamp operation, all these additional
functions shall be switched-off during the test.
NOTE Controlgear with additional power supply for the digital addressable lighting interface could be possible.
The value of the standby power (P ) (total input power) is recorded when a steady
ECGstandby
state has been reached (temperature of the electronic controlgear).
The supply voltage for the measurement according to Figure 3 is defined in 4.8.
If the stand-by power varies within the time, the power is determined as the arithmetic mean
value over a sufficient period.
The measurement sequence is as follows:
1) Connect the DUT according to Figure 3.
2) Switch on the mains voltage.
3) Control the output power of the electronic controlgear via the interface port (for example
“digital addressable lighting interface”) to the standby mode.
4) Await the thermal equilibrium.
5) Measure the standby power (total input power).
The measurement of standby power of electronic controlgear shall be performed according to
IEC 63103.
5.6 Networked standby power measurement of electronic controlgear
The measurement of networked standby power of electronic controlgear shall be performed
according to IEC 63103.
5.7 Reporting of power measurements
Power measurements shall be reported in W with the minimum following resolution:
– ≥ 10 W: whole number;
– > 1 W and < 10 W: first decimal digit;
– ≤ 1 W: two decimal digits.
– 16 – IEC 62442-2:2022 RLV © IEC 2022
Bibliography
IEC 60188, High-pressure mercury vapour lamps – Performance specifications
IEC 60662, High-pressure sodium vapour lamps – Performance specifications
IEC 60923, Auxiliaries for lamps – Ballasts for discharge lamps (excluding tubular fluorescent
lamps) – Performance requirements
IEC 61167, Metal halide lamps – Performance specification
IEC 62035, Discharge lamps (excluding fluorescent lamps) – Safety specifications
IEC 62442-1:2018, Energy performance of lamp controlgear – Part 1: Controlgear for
fluorescent lamps – Method of measurement to determine the total input power of controlgear
circuits and the efficiency of controlgear
IEC 62442-3, Energy performance of lamp controlgear – Part 3: Controlgear for tungsten-
halogen lamps and LED light sources – Method of measurement to determine the efficiency of
controlgear
ISO/IEC Guide 98-3:2008, Uncertainty of measurement – Part 3: Guide to the expression of
uncertainty in measurement (GUM:1995)
___________
IEC 62442-2 ®
Edition 3.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Energy performance of lamp controlgear –
Part 2: Controlgear for discharge lamps (excluding low-pressure mercury
fluorescent lamps) – Method of measurement to determine the efficiency of
controlgear
Performance énergétique des appareillages de lampes –
Partie 2: Appareillages des lampes à décharge (à l'exclusion des lampes à
fluorescence à vapeur de mercure à basse pression) – Méthode de mesurage
pour la détermination du rendement des appareillages
– 2 – IEC 62442-2:2022 © IEC 2022
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 General . 8
4.1 General notes on tests . 8
4.2 Controllable controlgear . 8
4.3 Multi-lamp type controlgear . 8
4.4 Measurement uncertainty . 8
4.5 Sampling of controlgear for testing . 8
4.6 Size of the test sample. 8
4.7 Power supply . 8
4.8 Supply voltage waveform . 9
4.9 Instrument accuracy . 9
4.10 Multi-rated voltage controlgear . 10
4.11 Sensor and network connections . 10
5 Method of measurement of the input power and calculation of the efficiency. 10
5.1 Measurement set-up: electromagnetic controlgear . 10
5.2 Efficiency calculation: electromagnetic controlgear . 11
5.3 Measurement set-up: electronic controlgear . 11
5.4 Efficiency calculation: electronic controlgear . 12
5.5 Standby power measurement of electronic controlgear . 12
5.6 Networked standby power measurement of electronic controlgear . 12
5.7 Reporting of power measurements . 12
Bibliography . 13
Figure 1 – Measurement set-up for electromagnetic controlgear . 10
Figure 2 – Measurement set-up for electronic controlgear . 11
Table 1 – Typical nominal electricity supply details for some regions . 9
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENERGY PERFORMANCE OF LAMP CONTROLGEAR –
Part 2: Controlgear for discharge lamps
(excluding low-pressure mercury fluorescent lamps) –
Method of measurement to determine the efficiency of controlgear
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
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence 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
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
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.
IEC 62442-2 has been prepared by subcommittee 34C: Auxiliaries for lamps, of IEC technical
committee 34: Lighting. It is an International Standard.
This third edition cancels and replaces the second edition published in 2018. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the title of Part 2 has been modified;
b) this edition has been harmonized with IEC 62442-1 and IEC 62442-3;
c) the reference to and use of the measurement methods for non-active power consumption in
accordance with IEC 63103 have been added.
– 4 – IEC 62442-2:2022 © IEC 2022
The text of this International Standard is based on the following documents:
Draft Report on voting
34C/1546/FDIS 34C/1549/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 62442 series, published under the general title Energy performance
of lamp controlgear, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website und
...
IEC 62442-2 ®
Edition 3.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Energy performance of lamp controlgear –
Part 2: Controlgear for discharge lamps (excluding low-pressure mercury
fluorescent lamps) – Method of measurement to determine the efficiency of
controlgear
Performance énergétique des appareillages de lampes –
Partie 2: Appareillages des lampes à décharge (à l'exclusion des lampes à
fluorescence à vapeur de mercure à basse pression) – Méthode de mesurage
pour la détermination du rendement des appareillages
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IEC 62442-2 ®
Edition 3.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Energy performance of lamp controlgear –
Part 2: Controlgear for discharge lamps (excluding low-pressure mercury
fluorescent lamps) – Method of measurement to determine the efficiency of
controlgear
Performance énergétique des appareillages de lampes –
Partie 2: Appareillages des lampes à décharge (à l'exclusion des lampes à
fluorescence à vapeur de mercure à basse pression) – Méthode de mesurage
pour la détermination du rendement des appareillages
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.99 ISBN 978-2-8322-1077-1
– 2 – IEC 62442-2:2022 © IEC 2022
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 General . 8
4.1 General notes on tests . 8
4.2 Controllable controlgear . 8
4.3 Multi-lamp type controlgear . 8
4.4 Measurement uncertainty . 8
4.5 Sampling of controlgear for testing . 8
4.6 Size of the test sample. 8
4.7 Power supply . 8
4.8 Supply voltage waveform . 9
4.9 Instrument accuracy . 9
4.10 Multi-rated voltage controlgear . 10
4.11 Sensor and network connections . 10
5 Method of measurement of the input power and calculation of the efficiency. 10
5.1 Measurement set-up: electromagnetic controlgear . 10
5.2 Efficiency calculation: electromagnetic controlgear . 11
5.3 Measurement set-up: electronic controlgear . 11
5.4 Efficiency calculation: electronic controlgear . 12
5.5 Standby power measurement of electronic controlgear . 12
5.6 Networked standby power measurement of electronic controlgear . 12
5.7 Reporting of power measurements . 12
Bibliography . 13
Figure 1 – Measurement set-up for electromagnetic controlgear . 10
Figure 2 – Measurement set-up for electronic controlgear . 11
Table 1 – Typical nominal electricity supply details for some regions . 9
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENERGY PERFORMANCE OF LAMP CONTROLGEAR –
Part 2: Controlgear for discharge lamps
(excluding low-pressure mercury fluorescent lamps) –
Method of measurement to determine the efficiency of controlgear
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
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence 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
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
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.
IEC 62442-2 has been prepared by subcommittee 34C: Auxiliaries for lamps, of IEC technical
committee 34: Lighting. It is an International Standard.
This third edition cancels and replaces the second edition published in 2018. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the title of Part 2 has been modified;
b) this edition has been harmonized with IEC 62442-1 and IEC 62442-3;
c) the reference to and use of the measurement methods for non-active power consumption in
accordance with IEC 63103 have been added.
– 4 – IEC 62442-2:2022 © IEC 2022
The text of this International Standard is based on the following documents:
Draft Report on voting
34C/1546/FDIS 34C/1549/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 62442 series, published under the general title Energy performance
of lamp controlgear, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under 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.
ENERGY PERFORMANCE OF LAMP CONTROLGEAR –
Part 2: Controlgear for discharge lamps
(excluding low-pressure mercury fluorescent lamps) –
Method of measurement to determine the efficiency of controlgear
1 Scope
This part of IEC 62442 defines a measurement method of the power losses of electromagnetic
controlgear, the total input power and the standby power of electronic controlgear for discharge
lamps (excluding low-pressure mercury fluorescent lamps). A calculation method of the
efficiency of controlgear for discharge lamp(s) is also defined.
It is assumed that the controlgear are designed for use on DC supplies up to 1 000 V and/or
AC supplies up to 1 000 V at 50 Hz or 60 Hz.
This document applies to electrical controlgear-lamp circuits comprised solely of the controlgear
and of the lamp(s).
NOTE Requirements for testing individual controlgear during production are not included.
This document specifies the measurement method for the total input power, the standby power
and the calculation method of the lamp controlgear efficiency for all controlgear sold for
domestic and normal commercial purposes operating with discharge lamps.
This document does not apply to:
– controlgear which form an integral part of lamps;
– controlgear circuits with capacitors connected in series;
– controllable electromagnetic controlgear.
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 60050-845, International Electrotechnical Vocabulary (IEV) – Part 845: Lighting (available
at http://www.electropedia.org)
IEC 61347-1:2015, Lamp controlgear – Part 1: General and safety requirements
IEC 63103:2020, Lighting equipment – Non-active mode power measurement
IEC TS 63105:2021, Lighting systems and related equipment – Vocabulary
IEC Guide 115:2021, Application of uncertainty of measurement to conformity assessment
activities in the electrotechnical sector
– 6 – IEC 62442-2:2022 © IEC 2022
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-845 and
IEC TS 63105 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
nominal value
suitable approximate quantity value used to designate or identify a component, device or
equipment
Note 1 to entry: To express the "nominal value" of a particular quantity, the term "value" is replaced by the quantity
name; for example, nominal power, nominal voltage, and nominal current.
[SOURCE: IEC 62442-1:2022, 3.1]
3.2
rated value
value of a quantity, used for specification purposes, declared by the manufacturer or
responsible vendor and established under standard test conditions
Note 1 to entry: To express the "rated value" of a particular quantity, the term "value" is replaced by the quantity
name; for example, rated power, rated voltage, rated current, and rated temperature.
[SOURCE: IEC 60050-845:2020, 845-27-100, modified – Note 2 to entry has been deleted.]
3.3
controlgear
one or more components between the supply and one or more lamps which can serve to
transform the supply voltage, limit the current of the lamp(s) to the required value, provide
starting voltage and preheating current, prevent cold starting, correct power factor or reduce
radio interference
[SOURCE: IEC 62442-1:2022, 3.3]
3.4
electromagnetic controlgear
magnetic controlgear
controlgear which by means of inductance, or a combination of inductance and capacitance,
serves mainly to limit the current of the electric lamp(s)
[SOURCE: IEC 60050-845:2020, 845-28-052, modified – The second preferred term has been
added.]
3.5
electronic controlgear
AC and/or DC supplied electronic circuit including stabilizing elements for
starting and operating one or more lamp(s)
3.6
discharge lamp
lamp in which the light is produced, directly or indirectly, by an electric discharge through a gas,
a metal vapour or a mixture of several gases and vapours
3.7
controlgear-lamp circuit
electrical circuit, or part thereof, normally built in a luminaire, consisting of the controlgear and
lamp(s)
[SOURCE: IEC 62442-1:2022, 3.7]
3.8
standby mode
mode when the equipment is connected to a supply voltage with the
illumination function off, while capable of being activated by an external trigger not being a
trigger from a network
Note 1 to entry: Examples of external triggers are sensing or timing.
[SOURCE: IEC 63103:2020, 3.10, modified – The domain "" has been
replaced with "".]
3.9
networked standby mode
mode when the equipment is connected to a supply voltage with the
illumination function off, while capable of being activated by an external trigger being a trigger
from a network
[SOURCE: IEC 63103:2020, 3.11, modified – The domain "" has been
replaced with "".]
3.10
standby power
average power consumption in the standby mode
3.11
networked standby power
average power consumption in the networked standby mode
3.12
total input power
total power consumed by the controlgear-light source circuit measured at rated input voltage
3.13
controlgear efficiency
η
CG
ratio of the output power to the lamp(s) and the input power of the controlgear
Note 1 to entry: Loads from sensors, network connections or other auxiliaries are disconnected or, if not possible,
otherwise eliminated from the result.
3.14
multi-lamp type controlgear
single-lamp controlgear designed for the operation of more than one type of lamp with different
electrical characteristics, for example power
3.15
controllable controlgear
controlgear whose light sources operating characteristics can be changed by means of a signal
via mains or control input(s)
Note 1 to entry: Signal control is either wired or wireless.
– 8 – IEC 62442-2:2022 © IEC 2022
4 General
4.1 General notes on tests
The measurement conditions specified in IEC 61347-1:2015, Clauses H.1, H.2, H.4, H.8, H.9
and H.11 shall be applied unless otherwise specified in this document. The device under test
(DUT) shall be placed according to IEC 61347-1:2015, Figure H.1.
An AC or DC voltage source shall be used to provide input voltage to the DUT. During the tests,
the supply voltage and the frequency shall be maintained constant within ±0,5 % during the
warm-up period. However, during the actual measurement, the voltage shall be adjusted to
within ±0,2 % of the specified testing value.
Unless otherwise specified in IEC 63103, stability of the measurement values (V, A or W) is
given if the data does not deviate by more than 1 % in a time frame of 15 min. If any of these
values vary with time, the power is determined as the arithmetic mean value over a sufficient
period.
4.2 Controllable controlgear
In the case of controllable controlgear, the test shall be carried out with the maximum output
power.
Requirements for other than 100 % light output operation of controllable controlgear and multi-
tapped electromagnetic controlgear are under consideration.
4.3 Multi-lamp type controlgear
If a single-lamp controlgear is designed for different lamp powers then the test shall be carried
out for each lamp.
The test for multi-lamp controlgear shall be carried out with all possible combinations.
4.4 Measurement uncertainty
Measurement uncertainty shall be managed in accordance with the accuracy method in
IEC Guide 115:2021, 4.4.3.
4.5 Sampling of controlgear for testing
The requirements and tolerances specified in this document are based on the testing of a type
test sample submitted by the manufacturer for that purpose. This sample should consist of units
having characteristics typical of the manufacturer's production and be as close to the production
centre point values as possible.
4.6 Size of the test sample
Tests are carried out with one test specimen.
4.7 Power supply
Where the test voltage and frequency are not defined by national or regional requirements, the
controlgear manufacturer shall declare the nominal voltage(s) at which the given efficiency is
valid.
Test voltage(s) and test frequency(ies) shall be the nominal voltage and the nominal frequency
of the country or region for which the measurement is being determined (refer to Table 1).
Table 1 – Typical nominal electricity supply details for some regions
a
Country or region
Nominal voltage and frequency
Europe 230 V; 50 Hz
North America 120 V, 277 V; 60 Hz
b
100 V, 200 V; 50/60 Hz
Japan
China 220 V; 50 Hz
Australia and New Zealand 230 V; 50 Hz
South Africa 230 V, 50 Hz
a
Values are for single phase only. Some single phase supply voltages can be double the nominal voltage above
(centre transformer tap). The voltage between two phases of a three-phase system is 1,73 times single phase
values (e.g. 400 V for Europe).
b
50 Hz is applicable for the Eastern part and 60 Hz for the Western part.
The above table can require test voltages additional to those required in IEC 63103.
4.8 Supply voltage waveform
The total harmonic content of the supply voltage when supplying the DUT shall not exceed 3 %;
harmonic content is defined as the root-mean-square (RMS) summation of the individual
components using the fundamental as 100 %.
The ratio of peak value to RMS value of the test voltage (i.e. crest factor) shall be between 1,34
and 1,49.
4.9 Instrument accuracy
For measurement uncertainty and traceability see ISO/IEC Guide 98-3 and IEC Guide 115.
For electromagnetic controlgear, calibrated and traceable AC power meters, power analysers
or digital power meters shall be used.
For electronic controlgear, all output power measurements shall be made with a calibrated and
traceable wideband power analyser or digital power meter.
For measurements made under the scope of this document, measurement instruments with the
following minimum accuracies shall be used:
a) for frequencies ≤ 1 kHz
• voltage: 0,5 %
• current: 0,5 %
• power: 1,0 %
• frequency: 0,1 %
b) for frequencies > 1 kHz
• voltage: 1,5 %
• current: 1,0 %
• power: 2,0 %
• frequency: 0,1 %
– 10 – IEC 62442-2:2022 © IEC 2022
4.10 Multi-rated voltage controlgear
If a controlgear is designed for more than one rated voltage, the controlgear manufacturer shall
declare the rated voltage(s) at which the given efficiency and standby power is valid.
4.11 Sensor and network connections
For the measurement of all kinds of controlgear power, the power consumed by all circuits
(internal or external) shall be considered as indicated in IEC 63103.
NOTE although the scope of IEC 63103 is limited to non-active mode power, the principle is also suitable for other
power measurements.
5 Method of measurement of the input power and calculation of the efficiency
5.1 Measurement set-up: electromagnetic controlgear
Figure 1 shows the measurement set-up of the power losses of electromagnetic controlgear.
Key
DUT device under test
Figure 1 – Measurement set-up for electromagnetic controlgear
The power losses (P ) of the electromagnetic controlgear will be measured based on the
losses
rated lamp current through the electromagnetic controlgear. Therefore the current through the
electromagnetic controlgear will be adjusted by the test voltage to the current defined in the
data sheet of the lamp(s). Tolerance for the current is ±0,5 %.
The measurements are carried out with a power meter connected to measure the power losses
into the electromagnetic controlgear.
The value of the power losses (P ) is recorded when a steady state has been reached
losses
(temperature of the electromagnetic controlgear).
The measurement sequence is as follows:
1) Connect the DUT according to Figure 1.
2) Switch on the test voltage and adjust the test voltage until the rated lamp current is obtained.
3) Await the thermal equilibrium and if necessary adjust the test voltage again to match the
rated lamp current.
4) Measure the power losses.
NOTE In the case of independent electromagnetic controlgear which incorporate an ignitor in the same enclosure,
the test is only applicable to the electromagnetic controlgear.
The measurement set-up circuit for constant power controlgear shall also be used in a suitable
way with the current defined in the data sheets of the lamp(s).
5.2 Efficiency calculation: electromagnetic controlgear
For the calculation of the controlgear efficiency (η ), Equation (1) should be used:
CG
P
lamp rated
η =
(1)
CG
PP+
lamp rated losses
where
P is the lamp power given in the lamp data sheet (in W).
lamp rated
5.3 Measurement set-up: electronic controlgear
Figure 2 illustrates the measurement set-up of the input and the output power of electronic
controlgear.
Key
DUT device under test
R lamp substitution resistor = load resistor
load
NOTE Owing to the unstable lamp situation for discharge lamps and for a good reproducibility, as a replacement
for the lamps, a resistor (R ) is used.
load
Figure 2 – Measurement set-up for electronic controlgear
If R is not given on the lamp data sheet, R is determined by dividing the rated or typical
load load
lamp voltage squared by the rated or typical lamp power (as applicable). The value of the
resistance shall be noted in the measurement report.
The measurements are carried out with power meters connected to measure the total input
power into the electronic controlgear-lamp circuit and the output power of the controlgear (lamp
power).
The value of the total input power (P ) is recorded when the temperature of the
tot meas
controlgear is stable. The temperature shall not deviate by more than 1 K per hour.
The supply voltage for the measurement according to Figure 2 is defined in 4.7.
The measurement sequence is as follows:
1) Connect the DUT according to Figure 2.
2) Switch on the mains voltage.
3) Await the thermal equilibrium.
4) Measure the input and the output power.
– 12 – IEC 62442-2:2022 © IEC 2022
To obtain a more accurate value of the efficiency, R should be obtained taking into
load
consideration the typical lamp voltage and current for square wave operation.
The measured total input power (P ) of a controlgear-lamp circuit is measured with one
tot meas
electronic lamp controlgear.
5.4 Efficiency calculation: electronic controlgear
For the calculation of the controlgear efficiency (η ), Equation (2) should be used:
CG
P
Lamp
η =
(2)
CG
P
tot meas
where
P is the measured total input power into the controlgear-lamp circuit under test
tot meas
(in W);
P is the measured output power of the controlgear under test (lamp power = power
Lamp
at the substitution resistor) in the test circuit (in W).
5.5 Standby power measurement of electronic controlgear
The measurement of standby power of electronic controlgear shall be performed according to
IEC 63103.
5.6 Networked standby power measurement of electronic controlgear
The measurement of networked standby power of electronic controlgear shall be performed
according to IEC 63103.
5.7 Reporting of power measurements
Power measurements shall be reported in W with the minimum following resolution:
– ≥ 10 W: whole number;
– > 1 W and < 10 W: first decimal digit;
– ≤ 1 W: two decimal digits.
Bibliography
IEC 60188, High-
...
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