IEC 62442-2:2018

IEC 62442-2 ®
Edition 2.0 2018-05
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Energy performance of lamp controlgear –
Part 2: Controlgear for high intensity discharge lamps (excluding fluorescent
lamps) – Method of measurement to determine the efficiency of controlgear

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IEC 62442-2 ®
Edition 2.0 2018-05
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Energy performance of lamp controlgear –

Part 2: Controlgear for high intensity discharge lamps (excluding fluorescent

lamps) – Method of measurement to determine the efficiency of controlgear

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.140.99 ISBN 978-2-8322-5683-1

– 2 – IEC 62442-2:2018 RLV © IEC 2018

CONTENTS
FOREWORD . 3

1 Scope . 5

2 Normative references . 5

3 Terms and definitions . 6

4 General . 8

4.1 Applicability . 8

4.2 General notes on tests . 8
4.3 Controllable controlgear . 8
4.4 Multi-lamp type controlgear . 8
4.5 Measurement uncertainty . 8
4.6 Sampling of controlgear for testing . 8
4.7 Number Size of the test samples . 8
4.8 Power supply . 8
4.9 Supply voltage waveform . 9
4.10 Instrument accuracy . 9
4.11 Multi-rated voltage controlgear . 10
4.12 Sensor and network connections . 10
5 Method of measurement of the input power and calculation of the efficiency of
controlgear for high intensity discharge lamps . 10
5.1 Measurement setup: electromagnetic wire wound controlgear . 10
5.2 Efficiency calculation: Magnetic wire wound electromagnetic controlgear . 11
5.3 Measurement setup: electronic controlgear . 11
5.4 Efficiency calculation: electronic controlgear . 12
5.5 Standby power measurement of electronic controlgear . 12
Bibliography . 14

Figure 1 – Measurement setup for electromagnetic controlgear . 10
Figure 2 – Measurement setup for electronic controlgear . 11
Figure 3 – Measurement setup of the standby power of electronic controlgear . 12

Table 1 – Typical nominal electricity supply details for some regions . 9

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
ENERGY PERFORMANCE OF LAMP CONTROLGEAR –

Part 2: Controlgear for high intensity discharge lamps

(excluding 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.
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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
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This redline version of the official IEC Standard allows the user to identify the changes
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– 4 – IEC 62442-2:2018 RLV © IEC 2018

International Standard IEC 62442-2 has been prepared by subcommittee 34C: Auxiliaries for

lamps, of IEC technical committee 34: Lamps and related equipment.

This second edition cancels and replaces the first edition published in 2014. This edition

constitutes a technical revision and has been harmonized with IEC 62442-1 and IEC 62442-3.

The text of this International Standard is based on the following documents:

CDV Report on voting
34C/1336A/CDV 34C/1377/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
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 "http://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.
IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this publication using a colour printer.

ENERGY PERFORMANCE OF LAMP CONTROLGEAR –

Part 2: Controlgear for high intensity discharge lamps

(excluding 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 lamps (excluding fluorescent lamps). A calculation method of the
efficiency of controlgear for high intensity discharged 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 wire-wound 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 61347-1:2007 2015, Lamp controlgear – Part 1: General and safety requirements
Amendment 1:2010
Amendment 2:2012
IEC 61347-2-9:2012, Lamp controlgear – Part 2-9: Particular requirements for
electromagnetic controlgear for discharge lamps (excluding fluorescent lamps)
IEC 61347-2-12:2010, Lamp controlgear – Part 2-12: Particular requirements for d.c. or a.c.
supplied electronic ballasts for discharge lamps (excluding fluorescent lamps)
IEC Guide 115:2007, Application of uncertainty of measurement to conformity assessment
activities in the electrotechnical sector

– 6 – IEC 62442-2:2018 RLV © IEC 2018

3 Terms and definitions
For the purposes of this document, the following terms and definitions 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
[SOURCE: IEC 62442-1:2011 2018, 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 62442-1:2011 2018, 3.3, modified — Note 2 has been removed deleted.]
3.3
controlgear
one or more components between the supply and one or more lamps which may 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 62442-1:2011 2018, 3.4]
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 lamp(s) to the required value and operates the lamp(s)
at the same frequency as the supply frequency

Frequency of the lamp controlgear is the same as supply frequency
[SOURCE: IEC 62442-1:2011 2018, 3.5]
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 62442-1:2011 2018, 3.8]

3.8
standby mode
mode relevant for those controlgear which are permanently connected to the mains, where the

lamp(s) are switched off via a control signal, not including failed lamp(s)

Note 1 to entry: The ignition phase of lamp(s) is excluded from the 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
3.9
standby power
average power consumption of a controlgear when subjected to 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.
3.10
total input power
total power supplied to consumed by the controlgear-lamp (light source) circuit measured at
rated input voltage
[SOURCE: IEC 62442-1:2011 2018, 3.13, modified — The sentence "The rated power
specified is related to a specific ballast lumen factor (BLF)." has been removed "supplied to"
has been replaced with "consumed by", "(light source)" has been added and the note has
been deleted.]
3.11
efficiency of lamp controlgear efficiency
η
MCG
η
ECG
< high intensity discharge lamps> ratio between the lamp power (controlgear output power)
and the input power of the controlgear – lamp circuit with possible sensors, network
connections and other auxiliary loads disconnected
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.
3.12
multi-lamp type controlgear
controlgear designed for the operation of more than one type of lamp with different electrical
characteristics, for example power

– 8 – IEC 62442-2:2018 RLV © IEC 2018

4 General
4.1 Applicability
The measurement and calculation methods in this document shall only be used for lamp

controlgear which conforms to IEC 61347-1 with IEC 61347-2-9 or IEC 61347-1 with

IEC 61347-2-12.
4.2 General notes on tests
The measurement conditions are specified in IEC 61347-1:2007 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 61347-1:2007 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.
4.3 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.
4.4 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.
4.5 Measurement uncertainty
Measurement uncertainty shall be managed in accordance with the accuracy method in
IEC Guide 115:2007, 4.4.3.
4.6 Sampling of controlgear for testing
Tests in this International Standard are type tests. 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.
4.7 Number Size of the test samples
One specimen shall be tested. Tests are carried out with one test specimen.
4.8 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
Japan 100 V, 200 V; 50/60 Hz
China 220 V; 50 Hz
Australia and New Zealand 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, respectively.

4.9 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 fundament 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.
4.10 Instrument accuracy
For measurement uncertainty and traceability see ISO/IEC Guide 98-3 and IEC Guide 115.
For magnetic wire wound 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 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 differ by 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.

– 10 – IEC 62442-2:2018 RLV © IEC 2018

4.11 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.

4.12 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).
5 Method of measurement of the input power and calculation of the efficiency
of controlgear for high intensity discharge lamps
5.1 Measurement setup: electromagnetic wire wound controlgear
Figure 1 shows the measurement setup of the power losses of electromagnetic wire wound
controlgear.
DUT
Test
voltage
IEC
Key
DUT device under test
Figure 1 – Measurement setup 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 ± 1 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 supply test voltage and adjust the output test voltage of the transformer
until the rated lamp current is obtained.
3) Await the thermal equilibrium and if necessary adjust the test voltage of the transformer
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 setup 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: Magnetic wire wound electromagnetic controlgear

For the calculation of the efficiency of electromagnetic controlgear (η ), Equation (1)
MCG
should be used:
P
lamp rated
(1)
η =
MCG
PP+
lamp rated losses
where
P is the lamp power given in the lamp datasheet (in W).
lamp rated
5.3 Measurement setup: electronic controlgear
Figure 2 illustrates the measurement setup of the input and the output power of electronic
controlgear.
Supply
DUT
R
load
voltage
IEC
Key
DUT device under test
R lamp replacement resistor = load resistor
load
NOTE Due 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 setup for electronic controlgear
If R is not given on the lamp data sheet, R is determined by dividing the rated/typical
load load
lamp voltage squared by the rated/typical lamp power. 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 differ by deviate from more than 1 K per hour.
The supply voltage for the measurement according to Figure 2 is defined in 4.8.
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.

– 12 – IEC 62442-2:2018 RLV © IEC 2018

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.
P is the measured total input power into the controlgear-lamp circuit under test (in

tot.meas.
W);
P is the measured output power of the controlgear under test (lamp power = power at
Lamp
the substitution resistor) in the test circuit (in W).
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
5.5 Standby power measurement of electronic controlgear
Figure 3 illustrates the measurement setup of the standby power of electronic controlgear.
Interface
port
Supply Output
DUT
terminals
voltage
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).

– 14 – IEC 62442-2:2018 RLV © IEC 2018

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 62442-1:2011 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 the controlgear
IEC 62442-3 , Energy performance of lamp controlgear – Part 3: Controlgear for tungsten-
halogen lamps and LED modules light sources – Method of measurement to determine the
efficiency of the controlgear
ISO/IEC Guide 98-3:2008, Uncertainty of measurement – Part 3: Guide to the expression of
uncertainty in measurement (GUM:1995)

___________
__________
To be published.
IEC 62442-2 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Energy performance of lamp controlgear –
Part 2: Controlgear for high intensity discharge lamps (excluding 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 haute intensité (à l’exclusion
des lampes à fluorescence) – Méthode de mesure pour la détermination du
rendement des appareillages
– 2 – IEC 62442-2:2018 © IEC 2018

CONTENTS
FOREWORD . 3

1 Scope . 5

2 Normative references . 5

3 Terms and definitions . 6

4 General . 7

4.1 Applicability . 7

4.2 General notes on tests . 7
4.3 Controllable controlgear . 8
4.4 Multi-lamp type controlgear . 8
4.5 Measurement uncertainty . 8
4.6 Sampling of controlgear for testing . 8
4.7 Size of the test sample. 8
4.8 Power supply . 8
4.9 Supply voltage waveform . 9
4.10 Instrument accuracy . 9
4.11 Multi-rated voltage controlgear . 9
4.12 Sensor and network connections . 9
5 Method of measurement of the input power and calculation of the efficiency of
controlgear for high intensity discharge lamps . 10
5.1 Measurement setup: electromagnetic controlgear . 10
5.2 Efficiency calculation: electromagnetic controlgear . 10
5.3 Measurement setup: electronic controlgear . 11
5.4 Efficiency calculation: electronic controlgear . 12
5.5 Standby power measurement of electronic controlgear . 12
Bibliography . 13

Figure 1 – Measurement setup for electromagnetic controlgear . 10
Figure 2 – Measurement setup for electronic controlgear . 11
Figure 3 – Measurement setup of the standby power of electronic controlgear . 12

Table 1 – Typical nominal electricity supply details for some regions . 8

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
ENERGY PERFORMANCE OF LAMP CONTROLGEAR –

Part 2: Controlgear for high intensity discharge lamps

(excluding 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.
International Standard IEC 62442-2 has been prepared by subcommittee 34C: Auxiliaries for
lamps, of IEC technical committee 34: Lamps and related equipment.
This second edition cancels and replaces the first edition published in 2014. This edition
constitutes a technical revision and has been harmonized with IEC 62442-1 and IEC 62442-3.
The text of this International Standard is based on the following documents:
CDV Report on voting
34C/1336A/CDV 34C/1377/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.

– 4 – IEC 62442-2:2018 © IEC 2018

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

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 "http://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 high intensity discharge lamps

(excluding 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 lamps (excluding fluorescent lamps). A calculation method of the
efficiency of controlgear for high intensity discharged 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 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 Guide 115:2007, Application of uncertainty of measurement to conformity assessment
activities in the electrotechnical sector

– 6 – IEC 62442-2:2018 © IEC 2018

3 Terms and definitions
For the purposes of this document, the following terms and definitions 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
[SOURCE: IEC 62442-1:2018, 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,
...