IEC 61347-2-7:2011/AMD2:2021

IEC 61347-2-7 ®
Edition 3.0 2021-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Lamp controlgear –
Part 2-7: Particular requirements for electric source for safety services (ESSS)
supplied electronic controlgear for emergency lighting (self-contained)

Appareillages de lampes –
Partie 2-7: Exigences particulières relatives aux appareillages électroniques
alimentés par source électrique de sécurité (ESSS) pour l'éclairage de secours
(autonome)
IEC 61347-2-7:2011-12/AMD2:2021-12(en-fr)

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IEC 61347-2-7 ®
Edition 3.0 2021-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Lamp controlgear –
Part 2-7: Particular requirements for electric source for safety services (ESSS)

supplied electronic controlgear for emergency lighting (self-contained)

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

alimentés par source électrique de sécurité (ESSS) pour l'éclairage de secours

(autonome)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.99 ISBN 978-2-8322-1054-2

– 2 – IEC 61347-2-7:2011/AMD2:2021
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LAMP CONTROLGEAR –
Part 2-7: Particular requirements for electric source for safety services
(ESSS) supplied electronic controlgear for emergency lighting
(self-contained)
AMENDMENT 2
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
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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 document may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 2 to IEC 61347-2-7:2011 has been prepared by subcommittee 34C: Auxiliaries for
lamps, of IEC technical committee 34: Lighting.
The text of this Amendment is based on the following documents:
Draft Report on voting
34C/1536/FDIS 34C/1540/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.

© IEC 2021
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications/.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
Title of Part 2-7
In the existing title, replace "battery" with "electric source for safety services (ESSS)" as follows:
Part 2-7: Particular requirements for electric source for safety services (ESSS) supplied
electronic controlgear for emergency lighting (self-contained)

Introduction to Amendment 2
The following significant technical changes have been introduced in this Amendment 2:
a) clarification of rest mode and inhibiting mode requirements;
b) introduction of requirements for controlgear using lithium batteries;
c) introduction of requirements for controlgear using electric double-layer capacitors (EDLCs);
d) introduction of the term "electric source for safety services (ESSS)" to cover both batteries
and EDLCs;
e) clarification of changeover operation requirements.

1 Scope
Replace the text of the Scope, modified by Amendment 1, with the following new text:
This part of IEC 61347 specifies particular safety requirements for electric source for safety
services (ESSS) supplied electronic controlgear for maintained and non-maintained emergency
lighting purposes.
It includes specific requirements for electronic controlgear and control units for self-contained
luminaires for emergency lighting as specified in IEC 60598-2-22.
It is intended for controlgear for fluorescent lamps and other lamp types for example
incandescent lamps, high pressure discharge lamps and LEDs.

– 4 – IEC 61347-2-7:2011/AMD2:2021
© IEC 2021
This document covers the emergency mode operation of a controlgear. For controlgear with a
combination of normal and emergency lighting operation, the normal lighting operation aspects
are covered by the appropriate Part 2 of the IEC 61347 series.
DC supplied electronic controlgear for emergency lighting can (or not) include the electric
source for safety services (ESSS).
This document does not apply to d.c. supplied electronic controlgear for emergency lighting,
which are intended for connection to a centralized emergency power supply system. A
centralized emergency power system could be a central battery system.
NOTE Annex J of IEC 61347-2-3:2011/AMD1:2016 applies to a.c., a.c./d.c. or d.c. supplied electronic controlgear
for connection to centralized emergency power supply systems that are also intended for emergency lighting
operations from a.c./d.c. supplies.
2 Normative references
Replace the existing references to IEC 60598-2-22 and IEC 61347-1 with the following new
references:
IEC 60598-2-22:2021, Luminaires – Part 2-22: Particular requirements – Luminaires for
emergency lighting
IEC 61347‑1:2015, Lamp controlgear – Part 1: General and safety requirements
IEC 61347‑1:2015/AMD1:2017
3 Terms and definitions
3.3
Replace the existing definition of "recharging device" with the following new definition:
recharging device
device to maintain the charge of and recharge an electric source for safety services (ESSS)
3.4
Replace the existing definition of "protection device against extensive discharge", modified by
Amendment 1, with the following new definition:
protection device against extensive discharge
automatic device to disconnect the controlgear from the electric source for safety services
(ESSS) when the ESSS voltage drops below a certain value
3.11
Replace the existing definition of "remote control" with the following new definition:
remote control
device to prevent discharge of the electric source for safety services (ESSS) by the lamp
operating circuit when normal illumination has been switched off centrally
3.12
Replace the existing definition of "indicator" with the following new definition:
indicator
device that indicates the luminaire is connected, the electric source for safety services (ESSS)
is being charged, and circuit continuity exists through the tungsten filament of emergency
lighting lamps where appropriate

© IEC 2021
3.14
Replace the existing definition of "control unit" with the following new definition:
control unit
unit or set of units comprising a supply changeover system, an electric source for safety
services (ESSS) charging device and a means for testing as appropriate
Add, at the end of 3.18, added by Amendment 1, the following new entries 3.19, 3.20 and 3.21:
3.19
rated duration of emergency operation
time, as claimed by the manufacturer, during which the rated emergency lumen output is
provided
3.20
rest mode
state of a controlgear in a self-contained emergency luminaire where the output is intentionally
shut down while the normal supply is off and that, in the event of restoration of the normal
supply, automatically reverts to normal mode
[SOURCE: IEC 60598-2-22:2021, 22.3.18, modified – The definition has been revised to assign
this function to the controlgear.]
3.21
remote inhibiting mode
state of a controlgear in a self-contained emergency luminaire which is inhibited from operating
by a remote device while the normal supply is on and in the case of a normal supply failure
when the controlgear in the luminaire does not change over to emergency mode
[SOURCE: IEC 60598-2-22:2021, 22.3.21, modified – The definition has been revised to assign
this function to the controlgear.]
5 General notes on tests
In the fourth dashed item and in the penultimate paragraph replace "batteries" and "battery"
with "ESSSs" and "ESSS".
7 Marking
7.2 Information to be provided
In the 10th, 11th, 12th and 13th (modified by Amendment 1) dashed items, replace "battery"
with "ESSS".
th
Replace the 14 dashed item beginning with "information required for correct battery
selection.", including NOTES 2 and 3, with the following new dashed item and notes:
– for controlgear designed to use rechargeable battery, information required for correct
battery selection shall be provided.
If the manufacturer indicates that batteries are only replaceable with a specific type, the
battery technology (e.g. NiMH) together with the type reference or the code of the
replaceable battery shall be provided. If the battery is replaceable with another type, the
following details shall be provided:
• technology of the battery (e.g. NiCd, NiMH);
• type designation of the battery according to the relevant standard (e.g. temperature
classification);
– 6 – IEC 61347-2-7:2011/AMD2:2021
© IEC 2021
• capacity and voltage of the battery;
• information about the charge rating of the controlgear (maximum and minimum charge
current and voltage limits);
• information about the discharge rating request by the controlgear (maximum and
minimum discharge current and voltage limits);
• temperature rating to provide the controlgear performances;
Controlgear containing any non-replaceable battery shall be marked to indicate that the
battery is non-replaceable.
NOTE 2 All electrical data are based on 25 °C reference conditions.
NOTE 3 Reference to an ESSS type and manufacturer is also acceptable.
th th
Insert, between the 14 dashed item and the 15 last dashed item, the following new dashed
item:
– for controlgear designed to use an EDLC as an ESSS, information required for correct EDLC
selection shall be provided.
If the manufacturer indicates that the EDLC is only replaceable with a specific type, the type
reference or the code of the replaceable EDLC shall be provided. If the EDLC is replaceable
with another type, the following details shall be provided:
• type of EDLC (according to the applicable IEC standard);
• rated voltage, and maximum charge voltage provided by the controlgear;
• capacity;
• temperature rating;
• temperature classification;
• dimensions.
Controlgear containing non-replaceable EDLC(s) shall be marked to indicate that the EDLC
is non-replaceable.
NOTE 4 All electrical data are based on 25 °C reference conditions.
NOTE 5 Reference to an ESSS type and manufacturer is also acceptable.
Add, at the end of the last dashed item beginning with "information regarding the installation.",
the following new dashed items and note:
– the rated charge time, if lower than 24 h, can be declared;
– the manufacturer shall make available information of the allowed time for the controlgear to
stay in rest mode or remote inhibiting mode after a full charging period, in order to provide
at least 50 % of the rated duration of the emergency operation.
• time shall be declared in days;
• for controlgear provided without battery or without a clear indication about which battery
to use, details for calculation shall be provided in accordance with 25.6.2.
NOTE 6 Examples of declared periods are 7, 30 or 90 days.
14 Fault conditions
Replace the title of Clause 14 "Fault conditions" with "Void" as follows :
14 Void
and delete the text "Not applicable.".

© IEC 2021
17 Supply current
In the first two paragraphs, modified by Amendment 1, replace "battery" with "ESSS" and
"batteries" with "ESSSs".
20 Functional safety (EBLF, EOFX)
20.1 Requirements for fluorescent lamp controlgear
Replace the fourth paragraph beginning with "Electronic controlgear provided." and the fifth
paragraph, including the list items, with the following new text:
Electronic controlgear provided with or without ESSSs:
For measurement of EBLF, voltages representative of a fully charged ESSS and the ESSS
voltage present just before lamp extinguishing are used as follows:
V – Full charge battery voltage per cell dependent on battery type as follows:
NiCd (Nickel Cadmium) 1,35 V per cell;
NiMH (Nickel Metal-Hydride) 1,35 V per cell;
Pb (Lead acid) 2,10 V per cell;
Li(NiCoMn)O (Lithium Nickel Manganese Cobalt Oxide) 4,0 V;
(Lithium Iron Phosphate) 3,65 V;
LiFePO
LTO (Lithium Titanate Oxide) 2,80 V;
(values given by default and can be different depending on the battery manufacturer's
declaration of design);
EDLC – Full charge EDLC voltage measured after full charge;
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;
Li(NiCoMn)O 3,10 V;
LiFePO 2,00 V;
LTO 1,65 V;
(values given by default and can be different depending on the battery manufacturer's
declaration of design);
EDLC – The lowest value measured at the end of emergency operation immediately before the
light source extinguishes.
20.2 Requirements for LED lamp controlgear
20.2.1 Constant current LED controlgear: EOF and I
I emergency
Replace the existing Subclause 20.2.1, added by Amendment 1, with the following new text:
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.

– 8 – IEC 61347-2-7:2011/AMD2:2021
© IEC 2021
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 producing
I
the maximum and the minimum of the output voltage range (or power).
Electronic controlgear provided with or without ESSSs:
For the measurement of I and EOF voltages representative of a fully charged battery
emergency I
and the battery voltage present just before the lamp extinguishes are used as follows:
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;
Li(NiCoMn)O 4,0 V;
LiFePO 3,65 V
LTO 2,80 V;
(values given by default and can be different depending on the battery manufacturer's
declaration of design).
EDLC – Full charge EDLC voltage measured after full charge;
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;
3,1 V;
Li(NiCoMn)O
LiFePO 2,00 V;
LTO 1,65 V.
(values given by default and can be different depending on the battery manufacturer's
declaration of design).
EDLC – the lowest value measured at the end of emergency operation immediately before the
light source extinguishes.
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 load.
normal mode
© IEC 2021
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.
21 Changeover operation
Insert, between the existing first and second paragraphs of Clause 21, modified by
Amendment 1, the following new paragraphs:
In the case of a rated supply voltage range, then changeover from normal to emergency mode
shall occur at not less than 0,6 times the maximum of the rated supply voltage range. It shall
not occur at greater than 0,85 times the minimum of the rated supply voltage range.
Controlgear with a selectable input voltage should be tested for changeover operation at each
voltage setting.
In NOTE 1, replace "batteries" with "ESSSs" and "may" with "can".
In the first sentence of the last existing paragraph, modified by Amendment 1, replace "rated
supply voltage" with "minimum rated supply voltage".
Replace the existing NOTE 2 with the following new NOTE 2:
NOTE 2 In Japan, changeover from normal to emergency mode at not less than 0,4 times the rated supply voltage
is accepted. In the case of universal controlgear without a selectable input voltage, changeover from normal to
emergency mode at not less than 0,4 times the minimum of the supply voltage range is accepted.
22 Recharging device
Replace the existing Clause 22, modified by Amendment 1, with the following new Clause 22:
The recharging device, if provided, shall provide the rated charge performance as declared by
the controlgear manufacturer to charge the ESSS within 24 h, or the recharging time declared
by the manufacturer as in 7.2, over the rated ambient temperature range and when operating
at voltages within the range of 0,9 times the rated operating voltage (range) and 1,06 times the
rated operating voltage (range).
Transformers built into controlgear for self-contained emergency luminaires for charging the
batteries shall comply with the relevant requirements of IEC 61558-2-1, IEC 61558-2-6 and
IEC 61558-2-16, these requirements being specified for associated transformers as required in
IEC 61558-1.
Compliance is checked by the tests of 22.1 to 22.5.
22.1 Low temperature operation – The ESSS shall be charged for 48 h or twice the charge
time as declared in 7.2 with a minimum of 12 h and then discharged until the voltage indicated
in Table 1 is achieved.
– 10 – IEC 61347-2-7:2011/AMD2:2021
© IEC 2021
Table 1 – Voltage per cell to which the battery is discharged
Discharge condition per cell
V
Battery type
Up to 1 h duration Greater than 1 h duration
NiCd 1,0 1,0
Pb 1,75 1,8
NiMH 1,0 1,0
Li(NiCoMn)O 3,0 3,0
LiFePO 2,0 2,0
LTO 1,5 1,5
The values given apply at an ambient temperature of (20 ± 5) °C.
The above-mentioned limits can be modified if supported by the battery manufacturer's declaration of design.

The EDLC is discharged until the light source is off.
The values apply at an ambient temperature of (20 ± 5) °C.
The recharging device shall then be operated to charge the fully discharged ESSS at 0,9 times
the rated supply voltage and at the minimum of the declared ambient temperature range of the
controlgear (if not declared, at room temperature), for a period of 24 h or the charge time as
declared in 7.2.
During the test, all parts, including the ESSS and lamps, shall be placed within the test cabinet.
When the ambient temperature rating limit of the test ESSS is different from that declared for
the controlgear, the ESSS should be held separately at its own declared minimum temperature
rating.
Normal lighting supply failure shall then be simulated and the ESSS shall operate the lamp from
the controlgear for the rated duration of the operation.
– For controlgear designed to operate with batteries, at the end of the rated duration, the
measured battery voltage shall be at least V as specified in Clause 20.
min
– For controlgear designed to operate with EDLCs, the duration of the light source operating
in emergency mode shall be increased to a factor K that takes into consideration the EDLC
d
capacitance degradation during its lifetime.
NOTE Details for the calculation of factor K are given in Clause A.8 of IEC 60598-2-22.
d
Compliance shall be checked by measurement.
22.2 High temperature operation – The test of 22.1 is repeated at 0,9 times the rated operating
voltage but at the maximum of the declared ambient temperature range.
Normal lighting supply failure shall then be simulated and the ESSS shall operate the lamp from
the controlgear for the rated duration of the operation.
– For controlgear designed to operate with batteries, at the end of the rated duration, the
measured battery voltage shall be at least V as specified in Clause 20.
min
– For controlgear designed to operate with EDLCs the duration of the light source operating
in emergency mode shall be increased to a factor K that takes into consideration the EDLC
d
capacitance degradation during its lifetime.

© IEC 2021
NOTE Details for the calculation of factor K are given in Clause A.8 of IEC 60598-2-22.
d
During the test, all parts, including ESSS and lamps, shall be placed within the test cabinet.
When the ambient temperature rating limit of the test ESSS is different from that declared for
the controlgear, the ESSS should be held separately at its own declared maximum temperature
rating.
Compliance shall be checked by measurement.
22.3 Abnormal operating condition – The recharging device shall be operated at 1,1 times the
rated supply voltage and the maximum of the declared ambient temperature range with the
ESSS disconnected and replaced by a short circuit. The test shall continue until stable
conditions are achieved or a protective device (e.g. fuse or thermal link) operates.
There shall be no emission of flames or molten material, or production of flammable gases from
the recharging device.
On completion of the test period, the short circuit link shall be removed, the ESSS shall be
reconnected and user replaceable fuse links replaced where necessary. The recharging device
shall remain safe. In the case of chargers containing self-resetting or user-replaceable
protective devices, normal ESSS recharge shall occur.
22.4 Void.
22.5 ESSS charge and discharge characteristics – The test of 22.1 is repeated at 0,9 and 1,1
times the rated operating voltage but under reference operating ambient temperature
characteristics of 25 °C ± 2 °C.
During both charge and discharge cycles, the current and voltage characteristics applied to the
ESSS shall be within those declared by the controlgear manufacturer, as required by 7.2.
Compliance shall be checked by measurement.
22.6 Lamp failure – Any lamp failure (emergency or normal operating lighting lamps) shall not
interrupt the charging current to the ESSS and shall not cause an overload that could impair
the operation of the ESSS.
Compliance is checked by removal of the lamp during ESSS charging. Testing is conducted
under rated supply voltage conditions and at 25 °C ± 2 °C.
NOTE In Japan, JIL5501 and JIL5502 are used as application standards of the Building Law and Fire and Disaster
Management Act instead of Subclauses 22.1 to 22.5.
22.7 Chargers for lithium batteries shall operate the cells in accordance with the
recommendations of the battery manufacturer's declaration of design (an example can be seen
in Annex M). Unless detailed otherwise by the battery manufacturer's declaration of design,
recharging of the battery shall be in accordance with the criteria given in Table 1 and Table 3.
To determine the values for a battery pack the values shall be calculated depending on the
battery pack configuration of series and or parallel cells.
Additionally:
The battery charge shall not start if the cell temperature is below T (minimum temperature
cmin
at charge start).
The battery charge shall not start if the cell temperature is above T (maximum temperature
cmax
at charge start).
– 12 – IEC 61347-2-7:2011/AMD2:2021
© IEC 2021
The temperature sensor location shall be defined in conjunction with the battery manufacturer
and its position should be clearly marked on the label or manufacturer’s data sheet. The thermal
sensor location should reflect the maximum temperature of the battery pack.
NOTE 1 If a temperature sensor is built-in, for test purposes, this temperature can be simulated by a resistor with
appropriate value.
NOTE 2 The temperature control can be contained within the battery, as part of the battery protection, or as part of
the controlgear.
Unless otherwise declared by the battery manufacturer, if two or more cells are connected in
series, each cell voltage shall be monitored separately with appropriate control such as
equalization to ensure that the voltage limits of Table 3 are not exceeded. This control may be
contained within the battery, as part of the battery protection, or as part of the controlgear.
Compliance shall be checked by measurement.
Table 3 – Voltage, current and temperature values per cell
Battery cell V V V I V I I T T
max rv low low @ low max eoc cmin cmax
type
−6
Li(NiCoMn)O 4,00 V 3,85 V 2,5 V 0,5 C5A 0,02 C5A 5 °C 40 °C
C5A (20 × 10 )
−6
LiFePO 3,65 V 3,40 V 2,0 V 0,5 C5A 0,02 C5A 0 °C 55 °C
C5A (20 × 10 )
−6
LTO 2,80 V 2,75 V 1,5 V 0,5 C5A 0,02 C5A 0 °C 45 °C
C5A (20 × 10 )
Key
V Maximum cell voltage
max
V Cell recovery voltage (recommeded voltage at which charge is started again after reaching V and
rv max
charge stopped)
V Minimum cell voltage. V is also applicable to cells connected in series as part of a battery. The
low low
minimum battery voltage is referred as V .
blow
I V Maximum permissable current draw at the minimum cell voltage
low @ low
I Maximum charge current
max
I Charge current at "end of charge"
eoc
T Minimum cell temperature
cmin
T Maximum cell temperature
cmax
The above-mentioned limits can be modified if supported by a declaration supplied by the battery manufacturer.
These values for T and T are applicable for both the start of charge and during charge unless otherwise
cmin cmax
specified in the battery manufacturer’s declaration of design.

23 Protection against excessive discharge
Replace the existing first paragraph and note with the following new paragraph and NOTE 1:
Controlgear utilizing lead-acid batteries, and controlgear utilizing a battery of three or more
nickel-cadmium cells in series, or a battery of one or more NiMH or Li cells, shall be protected
against polarity reversal of individual cells, or cells damage. This protection shall be achieved
by the incorporation of an electrical system that limits further battery discharge to the current
specified below when the battery voltage has fallen to V , determined below in a) to d).
blow
NOTE 1 This provision is intended to avoid an irreversible capacity loss due to a deep discharge of cells.

© IEC 2021
Add, at the end of list item c), after the paragraph beginning with "This requirement applies to
all emergency controlgear." and before the paragraph beginning with " The protection system
shall prevent any further discharge.", the following new item d):
d) For Li batteries:
– V = X · n where n is the number of cells in series;
blow
X = refer to V in Table 3;
low
If a different value is specified by the battery manufacturer in the declaration of design, this
value shall be applied for X.
– I ≤ I · m, where m is the number of cells in parallel, as per Table 3 or as specified by
low
the battery manufacturer in the declaration of design.
At the end of Clause 23, after the compliance statement, add the following new paragraph and
NOTE 2:
The battery cut-off switching point, of an emergency luminaire, can be higher than V . In this
blow
until V is reached.
case the luminaire is permitted to consume current at a level > I
low blow
NOTE 2 It can be necessary for the manufacturer to supply a sample controlgear and battery, with the battery
≥ V , so the test can be conducted.
blow
25 Remote control, rest mode, inhibition mode
25.1
In the first paragraph replace "battery" with "ESSS".
25.4
In the first paragraph replace "battery" with "ESSS".
25.6
Replace the existing text in 25.6 with the following new text and Subclauses 25.6.1 and 25.6.2:
25.6 For controlgear with rest mode or remote inhibiting mode, the drain current shall be
limited according to 25.6.1 and 25.6.2.
25.6.1 In controlgear with rest mode or remote inhibiting mode, the current drain from the
ESSS shall be measured with the controlgear in the rest mode or remote inhibiting mode,
following a full ESSS charge cycle (24 h at rated supply voltage). For the measurement of I
RM
a voltage source set at V in accordance with Clause 20 may be used as an alternative method.
Testing is conducted at 25 °C ± 2 °C.
25.6.2 The ESSS discharge current measured in 25.6.1 shall be used to calculate the
) to stay in rest mode or remote inhibiting mode after a full charging
maximum off time (T
RM
period, in order to provide at least 50 % of the rated duration of emergency operation.
For all ESSSs: T = (0,5 C ) / I
RM nom RM
where:
– 14 – IEC 61347-2-7:2011/AMD2:2021
© IEC 2021
T is the calculated time to keep the emergency luminaire in rest mode or remote inhibiting
RM
mode preserving 50 % of its rated duration of emergency operation;
is the nominal ESSS capacity expressed as intended by relevant standards;
C
nom
I is the current drain from the ESSS in rest mode condition or remote inhibiting mode
RM
measured in accordance with 25.6.1.
Compliance is checked by comparing the calculated T with declared rest/inhibition mode
RM
period. The calculated T shall not be lower than the declared rest/inhibition period.
RM
28 Fault conditions
At the end of 28.2, add the following new Subclause 28.3:
28.3 For lithium batteries, the limits for V and I shall not be exceeded, in accordance
max max
with the values listed in Table 3 or as defined in the battery manufacturer's declaration of
design.
29 Construction
29.1.2
Replace the existing first paragraph, modified by Amendment 1, with the following new
paragraph:
A controlgear supplied with an ESSS shall incorporate a battery or EDLC that meets the
requirements of Annex I and is designed to operate the ESSS for at least four years of normal
operation. This ESSS shall be used only for emergency related functions within the luminaire
or its satellite(s).
Annex I
In the title of Annex I, replace "batteries" with "ESSSs" as follows:
ESSSs for emergency lighting luminaires
Annex L
In the title of Annex L, replace "battery" with "electric source for safety services (ESSS)" as
follows:
Compatibility between normal mains operation electronic controlgear and electric
source for safety services (ESSS) powered emergency operation controlgear
In the first paragraph, replace "battery" with "ESSS-".
L.2 Procedures A and B – Changeover voltages
In the two paragraphs, replace "battery-" with "ESSS-" and in the last sentence of the second
paragraph, replace "must" with "shall".

© IEC 2021
At the end of Annex L, add the following new Annex M:
Annex M
(informative)
Example of battery manufacturer's declaration of design for a Li battery
Table M.1 provides details of the information expected to be provided in a battery
manufacturer's declaration of design for a lithium battery.
Table M.1 – Example of battery manufacturer's declaration of design for a Li battery
Data
…….
Name or identification of manufacturer
….
Designation of manufacturer model or reference

Normative designation of the battery format
…….V
Rated voltage of the battery
….Ah
Rated capacity C5
Charge type and specification:

NOTE To be defined by the battery manufacturer.

Values of safety battery protection:
Overcurrent discharge protection ….A
Deep discharge protection ….V
Overvoltage protection ….V
Full charge battery voltage ….V per cell
Minimum cell voltage (V ) ….V per cell
low
Cut-off battery voltage (V ) .V
blow
Residual discharge current (I @ V ) .μA
low low
Cell recovery voltage (V ) .V
rv
End of capacity battery voltage (V ) .V
min
Maximum cell voltage (V ) .V
max
Maximum charge current (I ) .A
max
Charge current "at end of charge" (I ) .A
eoc
Minimum cell temperature (T ) .°C
cmin
Maximum cell temperature (T ) .°C
cmax
Maximum cell temperature at the end of charge .°C
Maximum cell temperature in discharge mode .°C
Built-in charge equalization device YES / NO
Built-in protection electronic device (excessive discharge current, deep voltage YES / NO
discharge and overvoltage)
Built-in temperature control or measurement YES / NO
Position of thermal sensor (if applicable) ………………….
Maximum discharge rates for 1 h: Xxx % C5 @ xx °C

– 16 – IEC 61347-2-7:2011/AMD2:2021
© IEC 2021
Data
Maximum discharge rates for 3 h: Xxx % C5 @ xx °C
4-year design life for use in an emergency luminaire (select only one option) 40 °C YES/NO
55 °C YES/NO
NOTE Values for voltage apply to the battery pack unless otherwise stated for the cell.

Bibliography
Add the following new references:
JIL5501, Specification of luminaires for emergency lighting (escape lighting)
JIL5502, Basic requirements for luminaires and active system for escape lighting

___________
– 18 – IEC 61347-2-7:2011/AMD2:2021
© IEC 2021
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
APPAREILLAGES DE LAMPES –
Partie 2-7: Exigences particulières relatives aux appareillages
électroniques alimentés par source électrique de sécurité (ESSS)
pour l'éclairage de secours (autonome)

AMENDEMENT 2
AVANT-PROPOS
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