IEC 61347-2-7:2011/AMD1:2017

Amendment 1 - Lamp controlgear - Part 2-7: Particular requirements for battery supplied electronic controlgear for emergency lighting (self-contained)

Amendement 1 - Appareillages de lampes - Partie 2-7: Règles particulières relatives aux appareillages électroniques alimentés par batterie pour l'éclairage de secours (autonome)

General Information

• Status: Published
• Publication Date: 12-Oct-2017
• ICS: 29.140.99 - Other standards related to 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: 13-Oct-2017
• Completion Date: 14-Oct-2017

Relations

• Amends: IEC 61347-2-7:2011 - Lamp controlgear - Part 2-7: Particular requirements for battery supplied electronic controlgear for emergency lighting (self-contained)
• Effective Date: 05-Sep-2023

Overview

The IEC 61347-2-7:2011/AMD1:2017 Amendment 1 standard, issued by the International Electrotechnical Commission (IEC), specifies particular requirements for battery supplied electronic controlgear used in self-contained emergency lighting systems. This amendment updates the general rules outlined in IEC 61347-2-7:2011 with critical clarifications and expanded definitions, particularly addressing the functional safety and performance testing of electronic controlgear driving emergency lighting sources including both fluorescent and LED lamps.

This standard aims to ensure reliable emergency lighting performance when normal power supply fails, focusing on the Emergency Ballast Lumen Factor (EBLF) and introducing the new concept of Emergency Output Factor (EOF), particularly relevant for modern LED sources. The document details test methods, performance criteria, and marking requirements ensuring that such emergency lighting controlgear delivers adequate lighting levels to maintain safety.

Key Topics

• Emergency Ballast Lumen Factor (EBLF):
  Defines the ratio of light output of a lamp during emergency operation compared to normal operation. This is particularly important for fluorescent lamps to verify that the emergency lighting system provides sufficient illumination during power outages.

• Emergency Output Factor (EOF):
  Introduced to measure electronic controlgear performance for LED sources, EOF is the ratio of the electrical output (current, voltage, or power) during emergency operation relative to normal operation. This accounts for the temperature dependence of LED luminous output and is critical for accurate assessment and marking.

• Controlgear Definitions and Terminology:
  Amendment refines terminology replacing “ballast” with “controlgear” to reflect current technology. It also introduces terms such as emergency output current and output factor essential for testing and certification.

• Testing Methods and Conditions:
  Specifies detailed test procedures with defined voltages simulating battery behavior in emergency mode, measurement timings (5 seconds, 60 seconds, or 0.5 seconds for high-risk lighting), and temperature conditions (25 °C ambient).

• Functional Safety Requirements:
  Sets performance thresholds for emergency lighting output ensuring safety compliance. For LED controlgear, the correlation between forward current and luminous flux is emphasized, with requirements for uniform marking of operational parameters.

• Marking and Documentation:
  Manufacturers must declare values for EBLF or EOF as applicable, and provide detailed electrical specifications including output current ranges and voltage load conditions, especially for adjustable or variable output controlgear.

Applications

• Emergency Lighting Systems:
  This standard applies specifically to emergency lighting controlgear with integrated battery supply, commonly used in buildings to provide safety illumination during power failures. It ensures reliable, standardized performance for both fluorescent and LED luminaires.

• Safety and Compliance Testing:
  Enables manufacturers and testing laboratories to uniformly assess and certify emergency lighting controlgear, supporting regulatory compliance and public safety requirements in commercial, industrial, and residential environments.

• LED Retrofit and New Installations:
  With industry trends shifting towards LED solutions, the amendment addresses practical testing and performance verification challenges unique to LED sources, ensuring that emergency lighting meets required luminous output levels under all conditions.

• Lighting Design and Specification:
  Helps lighting designers choose appropriate controlgear that meets emergency lighting performance criteria, backed by standardized output factors and current ratings.

Related Standards

• IEC 61347-2-13: Covers particular requirements for electronic controlgear for LED modules, referenced for current and output parameter measurement methods related to EOF.

• IEC 61347-1: Contains general requirements for lamp controlgear, forming the basis for part 2-7 and its amendments.

• IEC 60598 Series: Standards governing luminaires, relevant when integrating controlgear under test for emergency lighting.

• National Emergency Lighting Codes and Regulations: Such as NFPA 101 and BS 5266, where compliance with IEC 61347-2-7 enhances conformity to legal mandates on emergency light performance.

---

Keywords: IEC 61347-2-7, emergency lighting controlgear, battery supplied controlgear, Emergency Ballast Lumen Factor (EBLF), Emergency Output Factor (EOF), LED emergency lighting, fluorescent emergency lamps, electronic controlgear testing, lamp controlgear standards, emergency lighting safety.

Standards Content (Sample)

IEC 61347-2-7 ®
Edition 3.0 2017-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Lamp controlgear –
Part 2-7: Particular requirements for battery supplied electronic controlgear for
emergency lighting (self-contained)

Appareillages de lampes –
Partie 2-7: Règles particulières relatives aux appareillages électroniques
alimentés par batterie pour l’éclairage de secours (autonome)
IEC 61347-2-7:2011-12/AMD1:2017-10(en-fr)

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IEC 61347-2-7 ®
Edition 3.0 2017-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Lamp controlgear –
Part 2-7: Particular requirements for battery supplied electronic controlgear for

emergency lighting (self-contained)

Appareillages de lampes –
Partie 2-7: Règles particulières relatives aux appareillages électroniques

alimentés par batterie pour l’éclairage de secours (autonome)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.99 ISBN 978-2-8322-4819-5

– 2 – IEC 61347-2-7:2011/AMD1:2017
© IEC 2017
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:
FDIS Report on voting
34C/1354/FDIS 34C/1359/RVD
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.
_____________
© IEC 2017
INTRODUCTION to Amendment 1
EBLF is the ratio of the light output of a light source in emergency mode to the rated light
output under normal conditions. EBLF is controlled by the output characteristics (current,
voltage, power) of the controlgear with which the light source is operated.
For conventional lamps like fluorescent lamps, the EBLF is defined by the light output ratio of
the lamp operated at 100 % and in emergency mode.
EBLF = Φ / Φ
emergency 100 %
For this measurement no special lamp is required, it is expected that all lamps of the same
type show a very similar light output ratio independent of its manufacturer. The measurement
is done at an ambient temperature of 25 °C. Due to the same dimensions and the identical
cooling system (free air) the thermal conditions are identical for all lamps. The result is fully
reproducible without any additional condition.
Special requirements for LED light sources
The light output of LED light sources depends also on the temperature at which they are
operated. Typically the temperature is controlled by a heat sink on which it is mounted (e.g.
luminaire surface).
This amendment describes a test method to evaluate the EBLF via an output factor (EOF )
X
taking into account that the ratio of the forward current of the LED controlgear is directly
proportional to the LED light output. Any non-linearity due to the increased efficacy at lower
operation temperature leads to an increased tolerance of the light output in the emergency
mode but always positive.
Controlgear, which operates the LED light source in normal operation as well as in emergency
operation can be marked directly with the output factor. Controlgear, operating the LED
module in emergency mode only needs to be marked with the output value, for example the
forward current I .
emergency
1 Scope
In the last paragraph, delete the first two sentences and in the third sentence, replace the first
word "it" with "This standard".
3 Terms and definitions
3.4
Replace, in the definition, “ballast” with “controlgear”.
3.15
Delete, in the definition, the words "an automatic testing".
Add, at the end of Clause 3, the following new terminological entries:

– 4 – IEC 61347-2-7:2011/AMD1:2017
© IEC 2017
3.16
emergency output factor
EOF
X
ratio of the electrical output parameter when the controlgear under test is operated in
emergency mode to the electrical output parameter when the controlgear is operated under
normal lighting conditions
EXAMPLE: I compared with I according to IEC 61347-2-13.
emergency rated
Note 1 to entry: The electrical output parameter can be current (EOF ), voltage (EOF ) or power (EOF ) at the
I U P
output(s) of the controlgear (depending on the module it could be constant current, constant voltage or constant
power).
Note 2 to entry: The emergency output factor is the minimum value measured at the appropriate time after failure
of the normal supply and continuously for the duration of the emergency operation.
Note 3 to entry: The EOF of LED controlgear used for emergency operation only, is not indicated on the
X
emergency controlgear as it depends directly also on the controlgear used for the normal operation mode. For
example for EOF it can be calculated in the final application from I and I .
I emergency normal mode
Note 4 to entry: The use of EOF higher than 1 is not suitable for direct calculation of the luminous flux of the
I
luminaire in emergency mode.
3.17
emergency output current
I
emergency
forward current supplied to the LED light source measured at the output of the controlgear in
emergency mode
3.18
I
normal mode
rated output current delivered from constant current controlgear to the LED light source in
normal operating mode
7.2 Information to be provided
Replace, in the first paragraph, “ballast” with “controlgear”.
Replace, in the second, third and tenth dashed list items, “ballast” with “controlgear”.
Replace the sixth dashed list item with the following four new dashed list items:
– declaration of the emergency ballast lumen factor (EBLF) for controlgear for fluorescent
lamp; for multi lamp controlgear the EBLF for each lamp-ballast combination;
) for LED controlgear supplying light source
– declaration of emergency output factor (EOF
X
in both normal and emergency operation. In case of settable electrical output parameter, a
range shall be provided or alternatively the value of the electrical parameter
(e.g. I and I from constant current controlgear) shall be provided for
normal mode emergency
the calculation of EOF.
– marking of the relevant output parameter (e.g. I from constant current controlgear
emergency
or output current range) for LED controlgear used for emergency operation only, since the
EOF is not applicable. In the case of controlgear providing different parameters from
I
constant values (e.g. a combination of constant power for some load range and constant
current for other load ranges) it shall be marked with the maximum I and details
emergency
for the parameters delivered shall be provided in the manufacturer's catalogue or similar.
– for LED controlgear providing constant current the minimum and the maximum output
voltage load shall be provided. In addition, for settable controlgear the output voltage
range shall be given for the whole range of currents in the manufacturer catalogue or
similar (e.g. table or operating area diagram).

© IEC 2017
13 Thermal endurance test for windings of ballasts
Replace, in the title of Clause 13, “ballasts” with “controlgear”.
15 Starting conditions
Replace, in the first, fifth and last paragraphs “ballast” with “controlgear”.
16 Lamp current
Replace, in the last paragraph, “ballasts” with “controlgear”.
17 Supply current
Replace, in the first and second paragraphs, “ballast” with “controlgear”.
19 Lamp operating current waveforms
Replace, in the second paragraph, “Ballasts” with “Controlgear” and in the third paragraph
"ballast" with "controlgear".
20 Functional safety (EBLF)
Replace the existing Clause 20 including its title with the following new Clause 20 and new
title:
20 Functional safety (EBLF, EOF )
X
20.1 Requirements for fluorescent lamp controlgear
The requirements of 20.1 only apply to fluorescent lamps. Measurements shall be made using
a new lamp which has been aged according to the appropriate lamp standard for initial
luminous flux measurements.
The appropriate lamp associated to the controlgear shall provide the necessary light output
after changeover to the emergency mode. This is verified if the declared emergency ballast
lumen factor (EBLF) is achieved during emergency operation at 25 °C.
Compliance is checked by the following test:
Electronic controlgear provided with or without batteries:
For measurement of EBLF, voltages representative of a fully charged battery and the battery
voltage present just before lamp extinguishing are used as follows:

– 6 – IEC 61347-2-7:2011/AMD1:2017
© IEC 2017
V – Full charge battery voltage per cell dependant on battery type as follows:
NiCd – 1,35 V per cell;
NiMh – 1,35 V per cell;
Pb – 2,10 V per cell.
V – End of capacity battery voltage per cell dependant on battery type as follows:
min
NiCd – 1,10 V;
NiMh – 1,10 V;
Pb – 1,80 V.
Where the controlgear cut off voltage is above these voltages, the cut off voltage becomes
V .
min
Measurement of EBLF shall be made at 25 °C, using a lamp of the appropriate type and
having not been lit for 24 h. The first measurements are made at V at 5 s and 60 s after the
application of the d.c. voltage, and then in steady conditions at V .
min
The lowest value of the values measured at 60 s and V or in steady conditions at V shall
1 min
be retained and shall reach at least the declared EBLF.
The value measured at 5 s and V shall reach at least 50 % of declared EBLF.
Replace 60 s by 0,5 s for controlgear declared for use in luminaires for high-risk task area
lighting.
As declared, EBLF shall be reached after 0,5 s, measurements at 5 s are not considered.
NOTE 1 Any test circuit corresponding to that of Figure 1 can be used to make the measurement of EBLF. The
luminous flux of a lamp is usually measured with an integrating photometer. For ratio measurements of luminous
fluxes, a suitable illuminance meter is sufficient as there is a close relationship between luminous flux and
illumination at a fixed point.
NOTE 2 Other methods may apply for determining EBLF, in particular methods which permanently record the
luminous flux of the lamp associated to the controlgear under test.

© IEC 2017
A
(ΣI)
r
(r)
r
(r)
mV
1 V
4 5
µA
A
W
V
7 V
IEC
Key
1 Supply
2 Controlgear under test
3 Thermocouple
4 Reference lamp
5 Photocell
6 Current transformer
7 Supply
8 Reference ballast
Figure 1 – Suitable circuit for the measurement
of lamp current and luminous flux
20.2 Requirements for LED lamp controlgear
20.2.1 Constant current LED controlgear: EOF and I
I emergency
LED light sources show a direct relation between forward current and light output with only a
slight deviation due to an improved efficacy when operated at lower temperatures.
The emergency output factor of the forward current, EOF , is the ratio of the average current
I
measured in emergency mode (I ) and the average forward current measured at rated
emergency
conditions (I ).
normal mode
Compliance is checked by the following test set up:
For compliance measurements of EOF the controlgear shall be operated with a load
I
producing the maximum and the minimum of the output voltage range (or power).
Electronic controlgear provided with or without batteries:
For the measurement of I and EOF of the controlgear it is operated at a supply
emergency I
voltage which represents V and V according to the following table:
1 min
– 8 – IEC 61347-2-7:2011/AMD1:2017
© IEC 2017
V  – Full charge battery voltage per cell dependent on battery type as follows:
NiCd – 1,35 V per cell;
NiMh – 1,35 V per cell;
Pb  – 2,10 V per cell.
V – End of capacity battery voltage per cell dependent on battery type as follows:
min
NiCd – 1,10 V;
NiMh – 1,10 V;
Pb  – 1,80 V.
Where the controlgear cut off voltage is above these voltages, the cut off voltage becomes
V .
min
Measurement of I shall be made at an ambient temperature of 25 °C. The first
emergency
measurement of the output current is made at V at 5 s and at 60 s after the application of the
d.c. voltage.
The second measurement of the output current is made at V .
min
The lower of the current measured at 60 s and V or V shall be retained as I and
1 min emergency
shall reach at least the declared value for I and EOF when compared with the output
emergency I
current (I ) of the controlgear measured under normal conditions with the same
normal mode
load.
The value measured at 5 s and V shall reach at least 50 % of the current I .
1 emergency
I
emergency
EOF =
I
I
normal mode
For LED controlgear declared for use in luminaires for high-risk task area lighting the
measurements at V are carried out after 0,5 s.
20.2.2 Constant voltage and constant power LED controlgear
Tests to check constant voltage and constant power LED controlgear are under consideration.
NOTE Voltage and/or power controlled LED controlgear are designed to operate LED light sources with an
integrated current control unit. The light output ratio of the LED light source therefore depends directly on the
characteristic of the LED module and on the heat sink (luminaire). Marking voltage and/or power controlled LED
controlgear with EBLF or EOF is therefore outside the scope of this standard.
X
20.3 Requirements for other light source controlgear
Requirements for other light sources are under consideration.

© IEC 2017
21 Changeover operation
Replace, in the second and third paragraphs all occurrences of “ballast” with “controlgear”.
Replace, in the first sentence of the fourth paragraph, "ballasts" with "controlgear" and in the
second sentence of the fourth paragraph, "ballast" with "controlgear".
22.1
Replace, in the fourth paragraph, “ballast” with “controlgear”.
22.2
Replace, in the third paragraph, “ballast” with “controlgear”.
22.5
Replace, in the second paragraph, “ballast” with “controlgear”.
24 Indicator
Replace “ballast” with “controlgear”.
26 Temperature cycling test and endurance test
Replace, in the third paragraph, “ballast” with “controlgear”.
27 Polarity reversal
Replace, in the first and second paragraphs, “ballast” with “the controlgear”.
29.1.2
Replace “ballast” with “controlgear”.
34.2
Replace, in the second and penultimate paragraphs “ballast” and "ballasts" with “controlgear”.
Replace, in the penultimate paragraph "the circuit shown in Figure 2a is used." with "the
circuits shown in Figure 2a and Figure 2b are used."
Replace the existing Figure 2 with the following new Figure 2:

– 10 – IEC 61347-2-7:2011/AMD1:2017
© IEC 2017
Lamp
Controlgear
Supply
under test
Rectifier
Resistor
IEC
a) Testing the first direction of the rectifying effect
Resistor
Rectifier
Controlgear
Supply
under test
Lamp
IEC
b) Testing the opposite direction of the rectifying effect

I
F
0,5 A
t
0,25 A
1,0 A
t
rr
I
R
(≤ 500 ns)
IEC
c) Recovery time t of the diode
rr
Key
The rectifier characteristics shall be:
Peak inverse voltage U ≥ 3 000 V
RRM
Reverse leakage current I ≤ 10 µA
R
Forward current I ≥ three times nominal lamp running current
F
Reverse recovery time t ≤ 500 ns
rr
(maximum frequency: 150 kHz) (measured with I = 0,5 A and I = 1 A to I = 0,25 A)
F R R
The following types of diodes (three diodes in series) are recommended as a suitable rectifier: RGP 30 M,
BYM 96 E, BYV 16.
Figure 2 – Circuit for testing rectifying effect
34.5
Replace, in the first, second and seventh paragraphs, after the formula and in the title of
Figure 4, “ballast” with “controlgear”.

© IEC 2017
35 Protection of associated components
Replace the existing Clause 35 with the following new Clause 35.
35 Protection of associated components
35.1 Controlgear for fluorescent lamps
35.1.1 Peak voltage limits
Under conditions of normal operation, verified with dummy cathode resistors inserted and
conditions of abnormal operation, as specified in Clause 34, the voltage at the output
...