SIST EN 60929:2011/A1:2016

SLOVENSKI STANDARD
SIST EN 60929:2011/A1:2016
01-maj-2016
,]PHQLþQRLQDOLHQRVPHUQRQDSDMDQHHOHNWURQVNHSUHGVWLNDOQHQDSUDYH]DFHYDVWH
IOXRUHVFHQþQHVYHWLONH7HKQLþQH]DKWHYH'RSROQLOR$
AC and/or DC-supplied electronic control gear for tubular fluorescent lamps -
Performance requirements
Ta slovenski standard je istoveten z: EN 60929:2011/A1:2016
ICS:
29.140.30 )OXRUHVFHQþQHVLMDONH6LMDONH Fluorescent lamps.
Discharge lamps
SIST EN 60929:2011/A1:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60929:2011/A1:2016

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SIST EN 60929:2011/A1:2016


EUROPEAN STANDARD EN 60929:2011/A1

NORME EUROPÉENNE

EUROPÄISCHE NORM
March 2016
ICS 29.140.30

English Version
AC and/or DC-supplied electronic control gear for tubular
fluorescent lamps - Performance requirements
(IEC 60929:2011/A1:2015)
Appareillages électroniques alimentés en courant alternatif Wechsel- und/oder gleichstromversorgte elektronische
et/ou continu pour lampes tubulaires à fluorescence - Betriebsgeräte für röhrenförmige Leuchtstofflampen -
Exigences de performances Anforderungen an die Arbeitsweise
(IEC 60929:2011/A1:2015) (IEC 60929:2011/A1:2015)
This amendment A1 modifies the European Standard EN 60929:2011; it was approved by CENELEC on 2015-11-26. CENELEC members
are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the status of a
national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 60929:2011/A1:2016 E

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SIST EN 60929:2011/A1:2016
EN 60929:2011/A1:2016
European foreword
The text of document 34C/1114/CDV, future IEC 60929:2011/A1, prepared by SC 34C “Auxiliaries for
lamps” of IEC/TC 34 “Lamps and related equipment" was submitted to the IEC-CENELEC parallel
vote and approved by CENELEC as EN 60929:2011/A1:2016.

The following dates are fixed:
(dop) 2016-09-11
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2019-03-11
standards conflicting with the
document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.

Endorsement notice
The text of the International Standard IEC 60929:2011/A1:2015 was approved by CENELEC as a
European Standard without any modification.
2

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SIST EN 60929:2011/A1:2016
EN 60929:2011/A1:2016
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu

Publication Year Title EN/HD Year
In Annex ZA of EN 60929:2011 add the following new reference:
IEC/TR 62750 2012 Unified fluorescent lamp dimming standard - -
calculations

3

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SIST EN 60929:2011/A1:2016

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SIST EN 60929:2011/A1:2016




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



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 60929:2011/A1:2016
– 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

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SIST EN 60929:2011/A1:2016
IEC 60929:2011/AMD1:2015 – 3 –
© 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.

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SIST EN 60929:2011/A1:2016
– 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
1
11
0 % tap
½ R
test
50 % tap
2
½ R
test
100 % tap
I
12 3
DUT
R
L
I
21 4
0 % tap
½ R
test
50 % tap
5
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.

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SIST EN 60929:2011/A1:2016
IEC 60929:2011/AMD1:2015 – 5 –
© 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
1
C (heating circuit to earth) 150 pF
2

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

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SIST EN 60929:2011/A1:2016
– 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).

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SIST EN 60929:2011/A1:2016
IEC 60929:2011/AMD1:2015 – 7 –
© 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.

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SIST EN 60929:2011/A1:2016
– 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

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SIST EN 60929:2011/A1:2016
IEC 60929:2011/AMD1:2015 – 9 –
© 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.).

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SIST EN 60929:2011/A1:2016
– 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:

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SIST EN 60929:2011/A1:2016
IEC 60929:2011/AMD1:2015 – 11 –
© 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
30
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:

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SIST EN 60929:2011/A1:2016
– 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.
1

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SIST EN 60929:2011/A1:2016
IEC 60929:2011/AMD1:2015 – 13 –
© 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.
1
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
...