IEC 60929:2011/AMD1:2015

Amendment 1 - AC and/or DC-supplied electronic control gear for tubular fluorescent lamps - Performance requirements

Amendement 1 - Appareillages électroniques alimentés en courant alternatif et/ou continu pour lampes tubulaires à fluorescence - Exigences de performances

General Information

• Status: Published
• Publication Date: 21-Oct-2015
• ICS: 29.140.30 - Fluorescent lamps. Discharge lamps
• Technical Committee: SC 34C - Auxiliaries for lamps
• Drafting Committee: WG 1 - TC 34/SC 34C/WG 1
• Current Stage: PPUB - Publication issued
• Start Date: 22-Oct-2015
• Completion Date: 15-Dec-2015

Relations

• Amends: IEC 60929:2011 - AC and/or DC-supplied electronic control gear for tubular fluorescent lamps - Performance requirements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60929 ®
Edition 4.0 2015-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
A MENDMENT 1
AM ENDEMENT 1
AC and/or DC-supplied electronic control gear for tubular fluorescent lamps –
Performance requirements
Appareillages électroniques alimentés en courant alternatif et/ou continu pour
lampes tubulaires à fluorescence – Exigences de performances

IEC 60929:2011-05/AMD1:2015-10(en-fr)

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IEC 60929 ®
Edition 4.0 2015-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
A MENDMENT 1
AM ENDEMENT 1
AC and/or DC-supplied electronic control gear for tubular fluorescent lamps –

Performance requirements
Appareillages électroniques alimentés en courant alternatif et/ou continu pour

lampes tubulaires à fluorescence – Exigences de performances

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.30 ISBN 978-2-8322-2925-5

– 2 – IEC 60929:2011/AMD1:2015
© IEC 2015
FOREWORD
This amendment has been prepared by subcommittee 34C: Auxiliaries for lamps, of IEC
technical committee 34: Lamps and related equipment.
The text of this amendment is based on the following documents:
CDV Report on voting
34C/1114/CDV 34C/1157/RVC
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication 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• withdrawn,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.

___________
CONTENTS
Replace the titles of 8.3.1 and 8.4 as follows:
8.3.1 Heating of the lamp cathodes
8.4 Limitation of the lamp current

Add the titles of the new Annexes F and G, the new figures and the new tables as follows:
Annex F (informative) Examples of suitable test set-ups for SoS and CV testing
Annex G (informative) Example of a SoS-CV test
Figure 3 – Fundamental test set-up for the SoS-test
Figure 4 – Fundamental test set-up for the CV-test
Figure F.1 – Lamp dummy for double-capped fluorescent lamps
Figure F.2 – Typical test set-ups for electronic control gear operating double-capped
fluorescent lamps
© IEC 2015
Figure F.3 – Typical test set-up for electronic control gear operating one or two single-capped
fluorescent lamps
Figure F.4 – Typical test set-up for electronic control gear for connecting two lamps in series
Figure G.1 – Example of test circuit set-up reflecting the necessary measurements of
Table G.1
Table 2 – Maximum permitted parasitic inductances, capacities and contact resistances of a
test circuit set-up according to Figures 3 and 4
Table 3 – Dimming levels and measured values
Table G.1 – List of necessary tests

1 Scope
Add after NOTE 2 the following NOTE 3:
NOTE 3 Requirements for the digital addressable lighting interface of electronic control gear are given in
IEC 62386.
2 Normative references
Add the following new reference at the end of the list:
IEC TR 62750:2012, Unified fluorescent lamp dimming standard calculations

8.3 Requirements for dimming
Replace the entire subclause with the following new subclause:
8.3 Requirements for dimming
8.3.1 Heating of the lamp cathodes
8.3.1.1 General
Fluorescent lamps operated in dimming mode (to reduce luminous flux by reducing discharge
current) need their cathodes adequately heated by the electronic control gear. It has been
found that measuring the currents through the two lead-in wires to the cathode and calculating
the sum of the squares (SoS) of these two currents as a function of the discharge current can
estimate the cathode heating. Alternatively, it has also been found that it is possible to
estimate cathode heating by measuring the voltage applied across the cathode (CV) while
dimming. The heating requirements are described in IEC TR 62750:2012.
The control gear is tested at lamp discharge currents (dim levels) of I , I and I . The
Dmin D30 D60
measurements are conducted with substitution resistors for the cathodes (R ) and for the
test
discharge, the latter dependent on the dim level (R , having nominal values of R and
L L10Max
R as well as R and R ). The lamp substitution resistor values shall be taken from
L10Min L30 L60
the IEC lamp data sheets. Take care that the substitution resistors are capable of carrying the
current, voltage and power occurring in the circuit.

– 4 – IEC 60929:2011/AMD1:2015
© IEC 2015
All positions that on control gear that would be connected to a lamp shall instead be
connected to substitution resistors. Wherever in this procedure a reference is made to “lamp”,
it is intended to mean a set of substitution resistors that represent a lamp.
The hot spot location may vary on the lamp cathode during operation. This effect is simulated
in the test by connecting the cathode substitution resistors in different circuit configurations.
For this purpose, taps in the middle and at the ends of the cathode substitution resistor
networks are equipped with switches (0 – 50 – 100 method), which allow all possible
combinations of connection to be realized. The fundamental test set-up is shown in Figure 3.
I
0 % tap
½ R
test
50 % tap
½ R
test
100 % tap
I
12 3
DUT
R
L
I
21 4
0 % tap
½ R
test
50 % tap
½ R
test
100 % tap
I
22 6
IEC
Key
DUT control gear device under test
R lamp substitution resistor
L
I measured current
nn
1…6 switch positions
Figure 3 – Fundamental test set-up for the SoS-test
In cases where the discharge current is much smaller than the auxiliary heating current,
i.e. for the upper and lower heating limits at very low discharge current values (= 10 % of the
test current), the cathode lead wire currents are found to be nearly equal.
Thus, for the CV-test, only the centre tap position is required for testing. The CV-test setup
shown in Figure 4 is a simplified version of the SoS-test circuit.

© IEC 2015
½ R
test
½ R
test
DUT
½ R
test
½ R
test
IEC
Key
DUT control gear device under test
R lamp substitution resistor
L
CV and CV measured cathode voltages
1 2
Figure 4 – Fundamental test set-up for the CV-test
8.3.1.2 Basic test conditions
Due to the lamps being operated at high frequency, the test set-up with substitution resistors
should be comparable to the set-up of the real luminaire. Relevant examples are given in
Annex F.
Check the suitability of the lamp and cathode substitution resistor set-up at high frequencies
for the frequency range used by the control gear.
Maintain the maximum contact resistances, parasitic inductances and coupling capacitances
of the cathode circuits in test with the lamp dummy inserted (see Table 2).
Table 2 – Maximum permitted parasitic inductances, capacitances and contact
resistances of a test circuit set-up according to Figures 3 and 4
Parameter Maximum value
L (for each heating circuit)
2 µH
R (contact resistances for each heating circuit)
100 nΩ
C (from heating circuit to heating circuit) 20 pF
C (heating circuit to earth) 150 pF
The values of L, R, C , and C are measured at the lamp wires next to the electronic control
1 2
gear’s lamp terminals. For this purpose, instead of a lamp, the cathode substitution resistors
R are inserted in the test set-up.
test
Output circuits of electronic control gears, designed for multi-lamp operation, are each tested
separately. The output circuits not involved in the test shall be connected to the substitution
CV CV
2 1
– 6 – IEC 60929:2011/AMD1:2015
© IEC 2015
resistors with equal value to the output circuit which is under test. The variations of the
cathode terminal switch take place only with the output circuit under test. For the other
circuit(s), the switch is connected to the middle position (positions 2 and 5 in Figure 3).
Lamp substitution circuits, supplied from multi-lamp electronic control gears (i.e. gears which
operate more than one lamp simultaneously), shall each be wired separately when connected
with the DUT (device under test). This means that each electrode substitution resistor is
equipped with 2 cables, leading to the terminal of the electronic control gear and having an
immediate connection according to the electrical circuit design. Each pair of one electrode
substitution resistor’s cables shall be installed together.
For wiring of the test set-up, H05V-U cables (or equivalent) shall be used. When designing
the wiring layout, the values of the parasitic losses shall be in the same order for all lamp
circuits. This can be achieved only if the wiring of the lamp circuits is comparable in
distances, lengths, etc. and each pair of lamp circuits is located symmetrical to the axis of the
device.
Check the suitability of the instruments, i.e. the tolerance at the range of expected frequency
and amplitude.
For the r.m.s. current measurement, the measurement period shall be an integer multiple of
the mains half wave period.
If the electronic control gear allows operation of different lamps with varying operating
parameters, then safeguard with suitable means so that during operation at the lamp dummy
the correct choice of parameters for that lamp(s) has been made.
Compliance with the cathode heating conditions shall be tested with each alternative lamp
type.
To ensure that control gear reaches the operating state (to “start” the substitution resistors),
the procedure may be modified and/or a special prepared control gear may be used, provided
the cathode heating would be the same as a production control gear.
8.3.1.3 General test sequence
Table 3 gives an overview of the values for the different dimming levels which shall be
measured and controlled. If an electronic control gear is designed for more than one lamp,
then the same measurements and tests shall be conducted as for Lamp 1. Table 3 includes
also the switching position for the simulation of the arc spot and the correlation to the test
method (CV or SoS).
© IEC 2015
Table 3 – Dimming levels and measured values
Arc spot
Lamp Cathode
Discharge simulation
Subclause substitution substitution Values to be checked
current switch
resistor value
position
8.3.1.4.2.2 I R R 2-5
CV ≥ CV , etc
10 L10min test3
1 min
CV ≤ CV ,
1 max
8.3.1.4.2.3 I R R 2-5
10 L10min test2
I ≤ I , etc
11 LHmax
8.3.1.4.2.4 I R R 2-5 CV ≥ CV , etc
10 L10max test3 1 min
CV ≤ CV ,
1 max
8.3.1.4.2.5 I R R 2-5
10 L10max test2
I ≤ I , etc
11 LHmax
2 2
8.3.1.4.3.2 I R R 2-5
I + I ≥ SoS , etc
30 L30 test1
11 21 30
CV ≤ CV ,
1 max
8.3.1.4.3.3 I R R 2-5
30 L30 test2
I ≤ I , etc
11 LHmax
2 2
8.3.1.4.4.2 I R R 2-5 I + I ≥ SoS , etc
60 L60 test1 11 21 30
CV ≤ CV ,
1 max
8.3.1.4.4.3 I R R 2-5
60 L60 test2
I ≤ I , etc
11 LHmax
2 2
8.3.1.5.2 I R R 1-4 I + I ≥ SoS , etc
30 L30 test1 11 21 30
2 2
8.3.1.5.3 I R R 3-6
I + I ≥ SoS , etc
30 L30 test1
11 21 30
2 2
8.3.1.5.4 I R R 1-6 I + I ≥ SoS , etc
30 L30 test1 11 21 30
2 2
8.3.1.5.5 I R R 3-4 I + I ≥ SoS , etc
30 L30 test1 11 21 30
8.3.1.4 Test sequence “arc attachment – middle”
8.3.1.4.1 General
All tests in 8.3.1.4 are performed with cathode tap 50 % – Figure 3 (equivalent switch
positions 2 and 5) or Figure 4.
Values of the lamp and cathode substitution resistors, test current and limit values shall be
those from the relevant IEC lamp data sheets.
8.3.1.4.2 Dim level I
Dmin
8.3.1.4.2.1 General
The control terminal of the electronic control gear is used to adjust the lamp discharge current
I (current through the lamp substitution resistors) to I as indicated on the relevant IEC
D Dmin
lamp datasheet.
8.3.1.4.2.2 Minimum heating for minimum lamp substitution resistor R
L10min
This test shall be carried out with a lamp substitution resistor value R and filament
L10min
substitution resistor value R .
test3
Measure CV and CV , and then compare the achieved values with the limit values according
1 2
to the formulas:
CV ≥ CV and CV ≥ CV
1 min 2 min
Electronic control gear, operating more than one lamp:
Repeat the measurement procedure of CV and CV for each other lamp of multi lamp control
1 2
gear.
– 8 – IEC 60929:2011/AMD1:2015
© IEC 2015
8.3.1.4.2.3 Maximum heating for minimum lamp substitution resistor R
L10min
This test shall be carried out with a lamp substitution resistor value R and filament
L10min
substitution resistor value R .
test2
Measure CV , CV , I , I , I , and I then compare the achieved values with the limit
1 2 11 12 21 22
values according to the formulas:
CV ≤ CV and CV ≤ CV and I ≤ I and I ≤ I and
1 max 2 max 11 LHmax 12 LHmax
I ≤ I and I ≤ I
21 LHmax 22 LHmax
Electronic control gear, operating more than one lamp:
Repeat the measurement procedure of CV , CV , I , I , I , and I for each other lamp of
1 2 11 12 21 22
multi lamp control gear.
8.3.1.4.2.4 Minimum heating for maximum lamp substitution resistor R
L10max
This test shall be carried out with a lamp substitution resistor value R and filament
L10max
.
substitution resistor value R
test3
Measure CV and CV , and then compare the achieved values with the limit values according
1 2
to the formulas:
CV ≥ CV and CV ≥ CV
1 min 2 min
Electronic control gear, operating more than one lamp:
For further lamps, the same measurements and tests shall be conducted as for Lamp 1 (See
8.3.1.4.2.2).
8.3.1.4.2.5 Maximum heating for maximum lamp substitution resistor R
L10max
This test shall be carried out with a lamp substitution resistor value R and filament
L10max
substitution resistor value R .
test2
Measure CV , CV , I , I , I , and I , then compare the achieved values with the limit
1 2 11 12 21 22
values according to the formulas:
CV ≤ CV and CV ≤ CV and I ≤ I and I ≤ I
1 max 2 max 11 LHmax 12 LHmax
and I ≤ I and I ≤ I .
21 LHmax 22 LHmax
Electronic control gear, operating more than one lamp:
For further lamps, the same measurements and tests shall be conducted as for Lamp 1 (See
8.3.1.4.2.3).
8.3.1.4.3 Dim level I
D30
8.3.1.4.3.1 General
The control terminal of the electronic control gear is used to adjust the lamp discharge current
I to I as indicated on the relevant IEC lamp datasheet.
D D30
© IEC 2015
8.3.1.4.3.2 Minimum heating for lamp substitution resistor R
L30
This test shall be carried out with a lamp substitution resistor value R and filament
L30
substitution resistor value R .
test1
Measure I , I , I and I , and then compare the achieved values with the limit values
11 12 21 22
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
11 12 30 21 22 30
Electronic control gear, operating more than one lamp:
For further lamps, the same measurements and tests shall be conducted as for Lamp 1.
Lamp 2:
Measure I , I , I and I , and then compare the achieved values with the limit values
31 32 41 42
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
31 32 30 41 42 30
Lamp 3:
Measure I , I , I and I , and then compare the achieved values with the limit values
51 52 61 62
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
51 52 30 61 62 30
Lamp 4:
Measure I , I , I and I , and then compare the achieved values with the limit values
71 72 81 82
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
71 72 30 81 82 30
8.3.1.4.3.3 Maximum heating for lamp substitution resistor R
L30
This test shall be carried out with a lamp substitution resistor value R and filament
L30
substitution resistor value R .
test2
Measure CV , CV , I , I , I , and I , then compare the achieved values with the limit
1 2 11 12 21 22
values according to the formulas:
CV ≤ CV and CV ≤ CV and I ≤ I and I ≤ I and
1 max 2 max 11 LHmax 12 LHmax
I ≤ I and I ≤ I .
21 LHmax 22 LHmax
Electronic control gear, operating more than one lamp:
For further lamps, the same measurements and tests shall be conducted as for Lamp 1 (See
8.3.1.4.2.3.).
– 10 – IEC 60929:2011/AMD1:2015
© IEC 2015
8.3.1.4.4 Dim level I
D60
8.3.1.4.4.1 General
The control terminal of the electronic control gear is used to adjust the lamp discharge current
I to I as indicated on the relevant IEC lamp datasheet.
D D60
8.3.1.4.4.2 Minimum heating for lamp substitution resistor R
L60
This test shall be carried out with a lamp substitution resistor value R and filament
L60
substitution resistor value R .
test1
Measure I , I , I and I , and then compare the achieved values with the limit values
11 12 21 22
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
11 12 60 21 22 60
Electronic control gear, operating more than one lamp:
For further lamps, the same measurements and tests shall be conducted as for Lamp 1.
Lamp 2:
Measure I , I , I and I , and then compare the achieved values with the limit values
31 32 41 42
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
31 32 60 41 42 60
Lamp 3:
Measure I , I , I and I , and then compare the achieved values with the limit values
51 52 61 62
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
51 52 60 61 62 60
Lamp 4:
, I , I and I , and then compare the achieved values with the limit values
Measure I
71 72 81 82
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
71 72 60 81 82 60
8.3.1.4.4.3 Maximum heating for lamp substitution resistor R
L60
This test shall be carried out with a lamp substitution resistor value R and filament
L60
substitution resistor value R .
test2
Measure CV , CV , I , I , I , and I then compare the achieved values with the limit
1 2 11 12 21 22
values according to the formulas:
CV ≤ CV and CV ≤ CV and I ≤ I and I ≤ I and
1 max 2 max 11 LHmax 12 LHmax
I ≤ I and I ≤ I .
21 LHmax 22 LHmax
Electronic control gear, operating more than one lamp:

© IEC 2015
For further lamps, the same measurements and tests shall be conducted as for Lamp 1 (See
8.3.1.4.2.3).
8.3.1.5 Test sequence “arc attachment – variable” – dim level I
8.3.1.5.1 General
The control terminal of the electronic control gear is used to adjust the lamp discharge current
I (current through the lamp substitution resistors) to I as indicated on the relevant IEC
D D30
lamp datasheet.
This test shall be carried out with a lamp substitution resistor of nominal value, R . The
L30
cathodes are substituted with a resistor having the value of R .
test1
8.3.1.5.2 Arc attachment – Figure 3, switch positions 1 and 4 – (cathode tap 0 and 0)
Electronic control gear, operating one lamp:
Measure I , I , I and I , and then compare the achieved values with the limit values
11 12 21 22
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
11 12 30 21 22 30
Electronic control gear, operating more than one lamp:
For further lamps, the same measurements and tests shall be conducted as for Lamp 1 (See
8.3.1.4.2.3).
8.3.1.5.3 Arc attachment – Figure 3, switch positions 3 and 6 – (cathode tap 100
and 100)
Electronic control gear, operating one lamp:
Measure I , I , I and I , and then compare the achieved values with the limit values
11 12 21 22
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
11 12 30 21 22 30
Electronic control gear, operating more than one lamp:
For further lamps, the same measurements and tests shall be conducted as for Lamp 1 (See
8.3.1.4.3.2).
8.3.1.5.4 Arc attachment – Figure 3, switch positions 1 and 6 – (cathode tap 0 and
100)
Electronic control gear, operating one lamp:
Measure I , I , I and I , and then compare the achieved values with the limit values
11 12 21 22
according to the formulas:
2 2 2 2
+ I ≥ SoS and I + I ≥ SoS
I
11 12 30 21 22 30
Electronic control gear, operating more than one lamp:

– 12 – IEC 60929:2011/AMD1:2015
© IEC 2015
For further lamps, the same measurements and tests shall be conducted as for Lamp 1 (See
8.3.1.4.3.2).
8.3.1.5.5 Arc attachment – Figure 3, switch positions 3 and 4 – (cathode tap 100
and 0)
Electronic control gear, operating one lamp:
Measure I , I , I and I , and then compare the achieved values with the limit values
11 12 21 22
according to the formulas:
2 2 2 2
I + I ≥ SoS and I + I ≥ SoS
11 12 30 21 22 30
Electronic control gear, operating more than one lamp:
For further lamps, the same measurements and tests shall be conducted as for Lamp 1 (See
8.3.1.4.3.2).
8.3.1.6 Test sequence for control gear which cannot obtain I , I and I
Dmin D30 D60
8.3.1.6.1 General
Some control gear cannot dim to the specified test conditions (e.g. continuous dimming
control gear with minimum level above I , or certain step-dimming control gear). For such
Dmin
control gear, the tests below shall be performed at the values of discharge current as close as
, I , and I . The value of the lamp arc substitution resistor shall be within
possible to I
D10 D30 D60
20 % of the value calculated according to linear interpolation lamp-specific parameters
specified in IEC lamp datasheets.
R − R
L60 L30
R = ⋅(I − I )+ R for I < I < I
L D D30 L30
D30 D D60
I − I
D60 D30
R − R
L10min L30
R = ⋅(I − I )+ R for I < I < I
Lmin D D30 L30
Dmin D D30
I − I
Dmin D30
R − R
L10max L30
R = ⋅(I − I )+ R for I < I < I
Lmax D D30 L30
Dmin D D30
I − I
Dmin D30
8.3.1.6.2 Dim level I ≤ I ≤ (I + I )/2
Dmin D Dmin D30
For the range of discharge currents between I and (I + I )/2, the tests of filament
Dmin Dmin D30
heat shall be performed using values of minimum and maximum arc substitution resistors
R and R and according to the procedures given in 8.3.1.4.2.2, 8.3.1.4.2.3, 8.3.1.4.2.4
Lmin Lmax
and 8.3.1.4.2.5.
8.3.1.6.3 Dim level (I + I )/2 ≤ I ≤ I
Dmin D30 D D30
For the range of discharge currents between (I + I )/2 and I , the tests of filament
Dmin D30 D30
and R as
heat shall be performed using values of arc substitution resistors R
Lmin Lmax
calculated in 8.3.1.6.1 and according to the procedures given in 8.3.1.4.2.3, 8.3.1.4.2.5,
8.3.1.4.3.2, 8.3.1.5.2, 8.3.1.5.3, 8.3.1.5.4 and 8.3.1.5.5.
The value of minimum SoS for compliance shall be calculated according to SoS = X –
min 1
Y × I , where I is the minimum value of lamp current delivered by the control gear, and X
1 d d 1
and Y are the lamp-specific cathode coefficients specified in IEC lamp datasheets.
© IEC 2015
8.3.1.6.4 Dim level I ≤ I ≤ (I + I )/2
D30 D D30 D60
For the range of discharge currents between I and (I + I )/2, the tests of filament heat
D30 D30 D60
shall be performed using values of arc substitution resistors R as calculated in 8.3.1.6.1 and
L
according to the procedures given in 8.3.1.4.3.2, 8.3.1.4.3.3, 8.3.1.5.2, 8.3.1.5.3, 8.3.1.5.4
and 8.3.1.5.5.
The value of minimum SoS for compliance shall be calculated according to SoS = X –
min 1
Y × I , where I is the minimum value of lamp current delivered by the control gear, and X
1 d d 1
and Y are the lamp-specific cathode coefficients specified in IEC lamp datasheets.
8.3.1.6.5 Dim level (I + I )/2 ≤ I ≤ I
D30 D60 D Dtrans
For the range of discharge currents between (I + I )/2 and I , the tests of filament
D30 D60 Dtrans
as calculated above, and
heat shall be performed using values of arc substitution resistor R
L
according to the procedures given in 8.3.1.4.4.2 and 8.3.1.4.4.3.
The value of minimum SoS for compliance shall be calculated according to SoS = X –
min 1
Y × I , where I is the minimum value of lamp current delivered by the control gear, and X
1 d d 1
and Y are the lamp-specific cathode coefficients specified in IEC lamp datasheets.
8.3.1.7 Compliance
The electronic control gear shall meet all maximum and minimum cathode heat limit values of
8.3.1.3 to 8.3.1.6. An example for test results recording is given in Annex G.
8.3.2 Control interfaces
The requirements of Annex E apply. For digital interfaces, the requirements of IEC 62386
apply together with the mandatory information of the manufacturer of the electronic control
gear.
At present, there are also other non-standardized interfaces, which can lead to problems of
interchangeability between interfaces. Test these interfaces according to the manufacturer’s
specifications.
8.4 Current limitation
Replace subclause 8.4 with the following new subclause:
8.4 Limitation of the lamp current
Unless otherwise specified on the relevant lamp data sheet, the control gear operated at rated
voltage shall limit the current delivered to a reference lamp to a value not exceeding 115 % of
that delivered to the same lamp when it is operated with a reference control gear.
15 Endurance
Replace the entire clause (15.1, 15.2 and 15.3) with the following new clause:
15 Endurance
15.1 General
The control gear shall be operated at rated supply voltage with an appropriate lamp(s)
installed outside the temperature chamber. All the earthing connections of the control gear
shall be connected to the earth. If the electronic control gear is marked for a range of supply

– 14 – IEC 60929:2011/AMD1:2015
© IEC 2015
voltages then the supply voltage with the most adverse effect on the temperature of the
electronic control gear shall be selected.
Tests are done in sequence with the same control gear.
Dimmable control gear is tested at 100 % power.
15.2 Temperature cycling
The temperature cycling test is as follows.
a) Samples: 5 – control gear which was not submitted to other tests.
To avoid control gear with thermal cut-off systems from switching off during the test, the
cut-off device shall be disabled, so the control gear remains operating.
b) Temperature range of the test chamber:
• minimum ambient temperature in the chamber is −20 °C ± 3 °C;
• maximum ambient temperature in the chamber is +80 °C ± 2 °C.
The ambient temperature in the chamber shall be measured within 200 mm of the test
samples.
c) Measure the stabilized input current of the control gear at 25 °C ± 5 °C.
d) Test routine for 220 temperature cycles:
1) Connect the control gear with the mains and the lamp(s) at 25 °C ± 10 °C (maximum
load) and place the control gear in a temperature test chamber. The lamp(s) are placed
outside of the temperature chamber. Airflow restrictions can affect the temperature
surrounding control gear under test (DUT). The spacing between the electronic control
gear shall allow a homogeneous temperature around all DUTs.
2) With the control gear in the off position, decrease the temperature in the test chamber
to the minimum test temperature with the following conditions (see Figure 5):
i) Initial 10 % of the transition of temperature: no requirements for temperature
change rate.
ii) Final 10 % of the transition of temperature: over/undershoot shall not exceed ±5 °C
from the target ambient temperature. Total transition time (t) shall not exceed
15 min.
© IEC 2015
t
+80°C ± 2°C
10%
80%
dt
10%
–20°C ± 3°C
–20°C ± 5°C
IEC
Figure 5 – Example of temperature cycling described under 15.2 d) 2)
3) At the minimum temperature level, start after 50 min at −20 °C 10 switching cycles
(10 s on / 50 s off).
4) Switch on the control gear.
5) With the control gear in the on position, increase the temperature in the test chamber
to the maximum test temperature with the following conditions:
i) Initial 10 % of the transition of temperature: no requirements for temperature
change rate.
ii) Final 10 % of the transition of temperature: over/undershoot shall not exceed ±5 °C
from the target ambient temperature. Total transition time (t) shall not exceed
15 min.
6) At the maximum temperature level, switch off the control gear after 50 min and start 10
switching cycles (50 s on / 10 s off).
7) Repeat steps 2) to 6) 219 times.
NOTE In Japan, the test chamber with 1 K/min to 15 K/min is applied.
e) Measure the stabilized input current of the control gear at 25 °C ± 5 °C.
Compliance: After completing all temperature cycles and cooling down to room temperature,
all control gear shall correctly start and operate an appropriate lamp(s) for 15 min. In addition
the input current in step e) shall not vary by more than ±10 % from the input current measured
in step c).
The humidity inside the test chamber should be limited to a value which does not cause any
condensation on the DUTs.
T
– 16 – IEC 60929:2011/AMD1:2015
© IEC 2015
15.3 Test at t + 10 K
c
The control gear shall operate at an ambient temperature which produces t + 10 K, until a
c
test period of 200 h has elapsed. After this test period, cool the chamber down to room
temperature. During this test the lamp(s) are placed outside the test chamber at an ambient
temperature of 25 °C ± 5 °C.
Compliance: After completing the test procedure all control gear shall correctly start and
operate an appropriate lamp(s) for 15 min.

© IEC 2015
Add the following new annexes after Annex E:
Annex F
(informative)
Examples of suitable test set-ups for SoS and CV testing
F.1 General
Conductor length and arrangement between control gear and substitution resistors are
according to CISPR TR 30-1. Substitution resistors and switches should be located as close
as possible to the location of lamp electrodes, and lamp resistors should be located as close
as possible to the lamp centre.
F 2 Lamp dummy for double-capped fluorescent lamps
See Figure F.1.
NOTE A “lamp dummy” represents the complete replacement of one lamp, consisting of R and R .
L test
a
½ R ½ R
test test
R
L
½ R ½ R
test test
W W
IEC
Key
R lamp substitution resistor
L
R cathode substitution resistor
test
W cathode substitution circuit
Figure F.1 – Lamp dummy for double-capped fluorescent lamps
F 3 Circuit set-up for single and multi-lamp electronic control gear for double-
capped fluorescent lamps
The test set-up contains lamp dummies and substitution resistors; hence, it simulates the
layout of symmetrically wired real lamps in a luminaire.
Figure F.2a represents the measurement set-up for single or double electronic lamp control
gears and Figure F.2b for three and four lamp electronic control gears. For details
see CISPR TR 30-1.
– 18 – IEC 60929:2011/AMD1:2015
© IEC 2015
Dimensions in millimetres
M
D C
W1 W2
I
I
I
I
DUT
W3 W4
I
31 I
I
I
D
a
40 40
L = a + 180
IEC
Figure F.2a – Typical test set-up for electronic control gear operating
one or two double-capped fluorescent lamps
Dimensions in millimetres
L = a + 180
a
C
W1 W2
I
I
I
I
D
W3 W4
I I
31 41
I I
32 42
DUT
W5 W6
I I
51 61
I
I
D
W7 W8
I I
I
I
M
IEC
Figure F.2b – Typical test set-up for electronic control gear operating
three or four double-capped fluorescent lamps
Key
DUT control gear under test M metal plate
D lamp dummy a length of the lamp
C insulation material W1…m substitution circuit for cathode (= filament) 1…m
I currents as explained in Figure 3
nn
Figure F.2 – Typical test set-ups for electronic control gear operating
double-capped fluorescent lamps
© IEC 2015
F 4 Circuit set-up for single and multi-lamp electronic control gear for single-
capped fluorescent lamps
Figure F.3 shows the test set-up for electronic control gears, operating simultaneously one or
two compact fluorescent lamps.
Dimensions in millimetres
150 100
½ R
test
½ R
test
240 60
R
L
½ R
L test
N
PE ½ R
test
DUT
½ R
test
½ R
test
R
L
½ R
test
½ R
test
M
IEC
Key
M metal plate, 1 mm thick
DUT control gear under test
R lamp substitution resistor
L
See also Figure 3.
Figure F.3 – Typical test set-up for electronic control gear operating
one or two single-capped fluorescent lamps
F.5 Circuit set-up for connecting two lamps in series
Figure F.4 shows the test circuit set-up for connecting two lamps in series. It is set to
following Figure F.4a or Figure F.4b with the connection method of a common filament.
≤100
– 20 – IEC 60929:2011/AMD1:2015
© IEC 2015
I
I
0%
0%
½ R
test
½ R
test
50% 2
50%
½ R
test
½ R
test
100%
100%
I 3
R
I
L1 3
12 R
L1
I
21 I
0%
0%
½ R
test
½ R
test
50%
50%
½ R
test ½ R
test
100% 6
I
100%
I
DUT
DUT
I = I
22 31
I
0%
I
0%
½ R
test
½ R
test
50%
50%
½ R
test ½ R
test
100%
I 9
I
R
L2 100%
R
L2
I
41 10
I
0%
0%
½ R
test
½ R
test
50%
50%
½ R
test
½ R
test
100%
12 100%
I
I
IEC IEC
Figure F.4a – Common filament Figure F.4b – Common filament
connected in series connected in parallel
Key
DUT control gear device under test
R , R lamp substitution resistor
L1 L2
1…6, 7…10 switch positions
Figure F.4 – Typical test set-up for electronic control gear for
connecting two lamps in series

© IEC 2015
Add a new Annex G:
Annex G
(informative)
Example of a SoS-CV test with diagrammatic view
G.1 Listing of the necessary tests
In Annex G, the transformation of the measured data is made by means of the relevant
equation from the IEC lamp data sheets and analysis is made by presentation of the
calculated results in diagrams. Table G.1 shows a survey of the necessary tests on one
example. Figure G.1 shows the corresponding circuit.
Table G.1 – List of necessary tests
Check I vs I and CV vs CV
D LHmax max
Check CV vs CV at 10 % I
min test
Check SoS vs SoS at 30 % I
min test
Check SoS vs SoS at 60 % I
min test
W1; Pin1 I
11 1
0% tap
½ R
test
50% tap
½ R
test
100% tap
W1; Pin2
I
DUT R
L
W2; Pin1 I
21 4
0% tap
(Lamp 1)
½ R
test
50% tap
½ R
test
100% tap
W2; Pin2 I
I
0% tap
½ R
test
50% tap
½ R
test
100% tap
I
R
L
(Lamp 2)
I
0% tap
½ R
test
50% tap
½ R
test
100% tap
I
IEC
Key
1…6 switch positions
Wx; Piny control gear terminal for cathode x, lead wire y
See also Figure 3.
Figure G.1 – Example of test circuit set-up reflecting
the necessary measurements of Table G.1

– 22 – IEC 60929:2011/AMD1:2015
© IEC 2015
G.2 Form sheet (example) for recording the measured values of a continuous
dimming electronic control gear with lamps FDH-54-G5-L/P-16/1150
Examples of recording of values for a continuous dimming control gear according to
Figure F.2 are given in the following form sheets. Items in light grey are substitution resistor
values. Items in dark grey are measured values of pin current or cathode voltage.

FDH-54-G5-L/P-16/1150
I A 0,480
test
I A 0,050
D,min
I A 0,380
D,max
CV V 4,35
max
I A 0,670
LHmax
CV at 10 % I V 3,20
min test
SoS at 30 % I A 0,282
min test
SoS at 60 % I A 0,154
min test
R Ω 7,5
test1
R Ω 8,5
test2
R Ω 3 000
L10min
R Ω 5 600
L10max
R Ω 1 100
L30
R Ω 470
L60
© IEC 2015
Check I vs I and CV vs CV
D LHmax max
I A 0,050 0,144 0,288
D
R Ω 3 000 5 600 1 100 470
L
R Ω 8,5
test
Switches W1-W8:50 % tap
I A
I A
I A
I A
I A
I A
I A
I A
I A
I A
I A
I A
I A
I A
I A
I A
CV V
CV V
CV V
CV V
CV V
CV V
CV V
CV V
Check CV vs CV at 10 % I
min Test
I A 0,050
D
R Ω 3 000 5 600
L
R Ω 7,5
test
Switches W1-W8: 50 % tap
CV V
CV V
CV V
CV V
CV V
CV V
CV V
CV V
– 24 – IEC 60929:2011/AMD1:2015
© IEC 2015
Check Lamp 1 SoS vs SoS at 30 % I
min Test
I A 0,144
D
R Ω 1 100
L
R Ω 7,5
test
Switches W1-W8: W1: 50 % W1: 0 % W1: 100 % W1: 0 % W1: 100 %
50 % tap unless noted W2: 50 % W2: 0 % W2: 100 % W2: 100 % W2: 0 %
I A
I A
I A
I A
SoS A
SoS A
Check Lamp 2 SoS vs SoS at 30 % I
min Test
I A 0,144
D
R Ω 1 100
L
R Ω 7,5
test
Switches W1-W8: W3: 50 % W3: 0 % W3: 100 % W3: 0 % W3: 100 %
50 % tap unless noted W4: 50 % W4: 0 % W4: 100 % W4: 100 % W4: 0 %
I A
I A
I A
I A
SoS A
SoS A
Check Lamp 3 SoS vs SoS at 30 % I
min Test
I A 0,144
D
R Ω 1 100
L
R Ω 7,5
test
Switches W1-W8: W5: 50 % W5: 0 % W5: 100 % W5: 0 % W5: 100 %
50 % tap unless noted W6: 50 % W6: 0 % W6: 100 % W6: 100 % W6: 0 %
I A
I A
I A
I A
SoS A
SoS A
© IEC 2015
Check Lamp 4 SoS vs SoS at 30 % I
min Test
I A 0,144
D
R Ω 1 100
L
R Ω 7,5
test
Switches W1-W8: W7: 50 % W7: 0 % W7: 100 % W7: 0 % W7: 100 %
50 % tap unless noted W8: 50 % W8: 0 % W8: 100 % W8: 100 % W8: 0 %
I A
I A
I A
I A
SoS A
SoS A
Check SoS vs SoS at 60 % I
min Test
I A
...