BUREAU OF INDIAN STANDARDS
Manak Bhavan, 9 Bahadur Shah Zafar Marg New Delhi 110002
Phones 2323 0131
2323 3375 Extn 4284
TeleFax +91 11 2323 1192 Website : www.bis.org.in
email
: eetd@bis.org.in
्या पक पररचाऱन मं मस दा
तकनीकी सममतत : ईटी
रऱख रषण सञापन
ईटी
सद्भ
23/टी-107
ददनाक
24-08-2015
23
.................................................................................................................................
रषती :
1. ईटी 23
क सभी सद्य.
2. वि्युत तकनीकी विभाग ऩररषद क सभी सद्य. तथा
3. ूचि रखन िाऱ अ्यग सभी ननकाय
मह दय,
कृ्याीी नन्नलऱखखत मस दं की एक-एक रनत संऱ्न. ह :
रऱख स्या
1.
रऱख : ईटी 23 । 6899 ।
शीषभक
रकाश सिाओ क लऱए ्ित जऱन िाऱ एऱ ई डी ऱ्ऩ
भाग-2 काययकाररता अऩऺाऍ ं (ऩहऱा ऩुनरीऺण)
का अिऱ कन करं और अऩनी सम््तय ं यह बतात हुए भजं कक अंतत: यदद यह मानक क ूऩ
म रकालशत ह जाए त इस ऩर अमऱ करन मं आऩक ्यमिसाय अथिा कार बार मं ्याीु कदिनाइय ं आ सकती हं ।
कृ्या
इस मस द
सम््तय ं यदद क ई ह त कृ्या् अगऱ ऩ्ृ ि ऩर ददए ऩर मं अध ह्ताी ऺरी क उऩररलऱखखत ऩत ऩर भज दं ।
यदद क ई स्ममनत रा्त नहीं ह ती अथिा स्मऩनत मं किऱ भाषा संबंधी रुदट हुई त उऩर ्तऩ रऱख क यथाित
अनतंम ूऩ ददया जाएगा । यदद क ई स्मऩनत तकनीकी रकृनत की हुई त विषय सलमनत क अ्यीऺ क ऩरामशय स
अथिा उनकी इ्छाज ऩर
ददया जाएगा ।
आग की काययिाही क लऱए विषय सलमनत क भज जान क बाद रऱख क अनतंम ूऩ द
स्म नतय ं भजन की अंनतम तारीख
ध्य िाद,
भिदीय,
।डी ग ्वा मी ।
वञातनक एफ एव रमुख
संऱ्नन : उऩरलऱखखत
(वव्युत तकनीकी)
25-09-2015
BUREAU OF INDIAN STANDARDS
Manak Bhavan, 9 Bahadur Shah Zafar Marg New Delhi 110002
Phones 2323 0131
2323 3375 Extn 4284
TeleFax +91 11 2323 1192 Website : www.bis.org.in
email
: eetd@bis.org.in
DRAFT IN
WIDE CIRCULATION
DOCUMENT DESPATCH ADVICE
Our Ref
ET 23/T-107
Date
24-08-2015
TECHNICAL COMMITTEE : ET 23
________________________________________________________________________________
ADDRESSED TO:
1.
2.
3.
All Members of Lamp and Related Equipments Sectional Committee, ET 23;
All Members of Electrotechnical Division Council; and
All Interested.
Dear Sir(s),
Please find enclosed the following drafts
DOC NO.
1. DOC: ET 23 (6899)
TITLE
SELF-BALLASTED LED LAMPS FOR GENERAL LIGHTING
SERVICES PART 2 PERFORMANCE REQUIREMENTS
(First Revision)
Kindly examine this draft and forward your views stating any difficulties which you are likely to
experience in your business or profession, if this is finally adopted as STANDARD.
Comments, if any, may please be made in the format given overleaf and mailed to the undersigned.
In case no comments are received or comments received are of editorial nature, you will kindly permit us
to presume your approval for the above document as finalized. However, in case of comments of technical
in nature are received then it may be finalized either in consultation with the Chairman, Sectional
Committee or referred to the Sectional Committee for further necessary action, if so desired by the
Chairman, Sectional Committee
Last date for comments: 25-09-2015
Thanking you,'
Yours faithfully
(D Goswami)
Sc ‘F’ & Head (Electrotechnical)
Email: eetd@bis.org.in
Encl: As above
Date
24-08-2015
Sl.
No.
Name of the
Organization
Clause/
Subclause
Paragraph/
Figure/Table
Type of
Comment
(General/
Technical/
Editorial
Comments
Document No.
ETD 23 (6899)
Proposed Change
Electric Lamps and Their Auxiliaries Sectional Committee, ETD 23
FOREWORD
This Indian Standard (Part 2) was adopted by the Bureau of Indian Standards, after the draft
finalized by the Electric Lamps and Their Auxiliaries Sectional Committee had been approved by
the Electrotechnical Division Council.
This standard specifies the performance requirements for self ballasted lamps for general
lighting services for supplies > 50 V a.c. up to 250 V a.c at 50 Hz.;
This standard is published in two parts. The other part in the series is: Part 1 Safety requirements
This standard was first published in 2012. Revision of this standard has been undertaken to align
it with latest development in this fileld.
There will be and are already LED products in the market which substitute existing lamps, either
as retrofit mains voltage incandescent or self ballasted fluorescent lamps or as replacement for
tungsten halogen lamps below 50 V.
This standard is based on IEC 62612 ‘Self-ballasted LED lamps for general lighting services for
voltage above 50 V — Performance requirements’ issued by the International Electrotechnical
Commission (IEC) with following modifications:
a) Made applicable for supplies > 50 V a.c. up to 250 V a.c. at 50 Hz.;
b) Schedule of type test and acceptance test has been incorporated;
c) Ambient test condition changed to 27°C;
d) Selection of samples incorporated;
e) Conditions of compliances incorporated;
f) In Table 2 data related chromaticity co-ordinates and CCT values for 5 700 K added;
g) Requirements of harmonics and p.f. have been added; and
For the purpose of deciding whether a particular requirement of this standard is complied with,
the final value, observed or calculated expressing the result of a test or analysis, shall be rounded
off in accordance with IS 2 : 1960 ‘Rules for rounding off numerical values (revised)’. The
number of significant places retained in the rounded off value should be the same as that of the
specified value in this standard.
1
DOC: ETD 23( 6899 )
BUREAU OF INDIAN STANDARDS
DRAFT FOR COMMENTS ONLY
(Not to be reproduced without the permission of BIS or used as a STANDARD)
Draft Indian Standard
SELF-BALLASTED LED LAMPS FOR GENERAL LIGHTING SERVICES
PART 2 PERFORMANCE REQUIREMENTS
(First Revision)
Last date for receipt of comments is
25-09-2015
1 SCOPE
This standard (Part 2) specifies the performance requirements for self-ballasted LED
lamps with supplies > 50 V a.c. up to 250 V a.c at 50Hz , together with the test methods and
conditions, required to show compliance with this standard, intended for domestic and similar
general lighting purposes, having,
a) a rated wattage from 1W to 25W ;
b) a rated supplies > 50 V a.c. up to 250 V a.c.at 50Hz and
c) a lamp cap according to IS 16102(Part 1) : 2012 ‘Self-ballasted LED lamps for general
lighting services: Part 1 Safety requirements’.
This standard does not cover self-ballasted LED-lamps that produce tinted or coloured light.
This standard covers LED lamps that intentionally produce white light, based on inorganic
LEDs.
The only feature provided by this standard, when applied for replacement purposes, is
information on maximum lamp outlines.
These performance requirements are additional to the requirements given in IS 16102 (Part 1).
NOTES
1 When operated in a luminaire the claimed performance data can deviate from the values established in this standard e.g. Due to
luminaire components that impact the performance of the lamp.
2 Higher wattage lamp is under consideration.
The life time of LED lamps is in most cases much longer than the practical test times.
Consequently, verification of manufacturer’s life time claims cannot be made in a sufficiently
confident way, because projecting test data further in time is not standardised. For that reason
the acceptance or rejection of a manufacturer's life time claim, past an operational time is out of
the scope of this standard.
Instead of life time validation, this standard has opted for lumen maintenance codes at a defined
finite test time. Therefore, the code number does not imply a prediction of achievable life time.
1
The categories, represented by the code, are lumen-depreciation character categories showing
behaviour in agreement with manufacturer’s information, provided before the test is started.
In order to validate a life time claim, several methods of test data extrapolation exist. A general
method of projecting measurement data beyond limited test time is under consideration.
The pass/fail criterion of the life time test as defined in this standard is different from the life
time metrics claimed by manufacturers.
NOTE — When the lamps are used in the luminaire, the ambient temperature inside the luminaire is expected to be higher than the room
ambient temperature. The procedure for design and measurement is covered in IS 10322 (Part 1).
2 REFERENCES
The standards listed below contain provisions which through reference in this text, constitute
provisions of this standard. At the time of publication, the editions indicated were valid. All
standards are subject to revision, and parties to agreements based on this standard are
encouraged to investigate the possibility of applying the most recent editions of the standards
listed as follows:
IS No
1885 ( Part 16/Sec 1): 1968
2418 (Part 1): 1977
6873 (Part 5) : 1999
14700 (Part 3/ Sec 2) : 2008
15687 (Part 1): 2006
16101 : 2012
16102 (Part 1) : 2012
16106 : 2012
CIE 1931
IS/IEC TR 61341: 201
Title
Electrotechnical vocabulary: Part 16 Lighting,
Section1 General aspects
Tubular fluorescent lamps for general lighting services:
Part 1 Requirements and tests
Limits and methods of measurementof radio disturbance
Characteristics : Part 5 Electrical lighting and similar
equipment
Electromagnetic compatibility: Part 3 Limits, Section 2
Limits for harmonic current emissions
Single-capped fluorescent lamps: Part 1 Safety
requirements
General lighting — LEDs and LED modules — Terms
and Definitions
Self-ballasted LED lamps: Part 1 Safety requirements
Method for the electrical and photometric
measurements of solid-state lighting products
MacAdam ellipses as normally applied for
(compact) fluorescent lamps and other discharge lamps
Method of measurement of center beam intensity and
beam angle(s) of reflector lamps.
3 TERMINOLOGY
The definitions given in IS 16101, IS 1885 (Part 16/ Sec 1) and the following shall apply.
3.1 Rated Value — Quantity value for a characteristic of a LED lamp for specific operating
conditions. The value and the conditions are specified in this standard, or assigned by the
manufacturer or responsible vendor.
2
3.2 Test Voltage — Voltage at which tests are carried out.
Note : Specification of test voltage is made in Annex-A.
3.3 Lumen Maintenance (Lx) (of an LED lamp)/ luminous flux maintenance — luminous
flux at a given time in the life of a led lamp divided by the initial value of the luminous flux of
the lamp and expressed as a percentage x of the initial luminous flux.
NOTE — The lumen maintenance of a LED lamp is the effect of decrease of the lumen output of the LED(s) or a combination of this
with failure(s) of LED(s) if the lamp contains more than one LED.
3.4 Initial Values — Photometric, colorimetric and electrical characteristics at the end
of the ageing period and/or stabilization time.
3.5 Life (of an Individual LED Lamp) Lx — Length of time during which a LED lamp
provides more than claimed percentage of the initial luminous flux, under standard test
conditions. A LED lamp has thus reached its end of life, when it no longer provides claimed
percentage of the initial luminous flux. Life is always published in combination of with the
failure rate (see Note 4 and Clause 3.7).
NOTES –
1 LED lamps have a different end of life characteristic than conventional lamps, because typically they rather will dim over time in a
gradual way than being subject to sudden lamp failure. Lumen maintenance is the governing characteristic for lifetime of LED lamps.
2 The built-in control gear and LED’s (with a certain probability), however, may show a sudden end of life failure (see 3.7).
3 The maximum reduction of lumen maintenance may vary depending on the application of the LED lamp: This standard uses a
value of 70 percent (L70) as an example. Dedicated information on the chosen percentage is to be provided by the manufacturer.
4 End of lamp life is normally determined when 50 percent of the lamps failed, indicated in combination with the chosen lumen
maintenance, for example: L70, F50. For professional applications, the combined value L70, F10 is advised, meaning maximum 10
percent of the lamps has failed when the point of 70 percent lumen maintenance has been reached.
3.6 Rated Lamp Life (h) — Length of time during which a population of LED lamp
provides more than claimed percentage of the rated luminous flux, published in combination
with the failure rate, as declared by the manufacturer or responsible vendor.
NOTES
1 For sample size, see 17.
2 Notes 1, 2 and 4 of 3.5 shall apply.
3.7 Failure Fraction (Fx)— The percentage x of a number of tested lamps of the same
type, that have reached the end of their individual lives. For marking of the failure fraction (see
Table 1).
NOTES
1 For self-ballasted LED lamps, the failure fraction expresses the combined effect of all components of an LED lamp including
mechanical components, as far as the light output is concerned. The effect of the LED could either be less light than claimed or no
light at all.
2 For self-ballasted LED lamps normally a failure fraction of 10 percent or/and 50 percent are being applied, indicated as F10
and/or F50.
3.8 Photometric Code — Colour designation of a LED lamp giving white light as defined by
the correlated colour temperature (CCT) and the colour rendering index.
Attached to this, information is given on CCT tolerance category and life time category.
3
NOTES
1 An example of the construction of the colour code is given in Annex-C.
2 The term general colour rendering index (CRI) is referred to CIE. The term colour rendering index designates one digit derived
from the CRI (see Annex-C).
3.9 Stabilization Time — Time which the LED lamp requires to obtain stable Photometric
conditions with constant electrical input for each measurement.
Note – An LED lamp may be regarded as stable at stable thermal conditions.
3.10 Ageing — Preconditioning period of the LED-lamps before initial values are taken.
3.11 Type — LED lamp, representative of the production.
3.12 Type Test — Test or series of tests made on a type test sample for the purpose of
checking compliance of the design of a given product with the requirements of the relevant
standard
3.13 Type Test Sample — Sample consisting of one or more similar units submitted by the
manufacturer or responsible vendor for the purpose of the type test.
3.14 Acceptance Test — Tests carried out on samples taken from a lot for the acceptance of the
lot.
3.15 Batch — All the lamps of one type put forward at one time for acceptance test.
3.16 Inspection Test Quantity (ITQ) — The number of lamps selected for the purpose of
determining the acceptability of a batch as to safety requirements given in Part 1 of this
standard.
3.17 Rating Test Quantity (RTQ) — The number of lamps selected for the purpose of
determining the acceptability of a batch as to initial readings and colour.
3.18 Life Test Quantity (LTQ) — The number of lamps selected for the purpose of
determining the acceptability of a batch as to life performance
3.19 maintained value - Photometric, colorimetric and electrical characteristics at an
operational time, including stabilisation time.
3.20 Family - Group of LED lamps that have same design characteristics, distinguished by
common features of materials, components, and/or method of processing.
3.21 LED lamp efficacy - Quotient of the luminous flux emitted by the power consumed by
the LED lamp
Note 1 to entry: Efficacy is expressed in lm/W.
3.22 LED die - Block of semi-conducting material on which a given functional circuit is
fabricated
3.23 LED package - Single electrical component encapsulating principally one or more LED
dies, possibly with
optical elements and thermal, mechanical, and electrical interfaces.
Notes
1 The component does not include the control unit of the controlgear, does not include a cap, and is not connected directly to the
supply voltage.
2 An LED package is a discrete component and part of the LED lamp. For a schematic built-up of an LED package.
4
3.24 tLED – Designated location of the point where to measure the performance temperature
tLED at the surface of the LED Package at rated voltage and ambient temperature 27°C.
3.25 Directional lamp - Lamp having at least 80 % luminous flux within a solid angle of π sr
(corresponding to a cone with angle of 120°).
3.26 Peak intensity - The highest value of the luminous intensity regardless of whether or not
it occurs on the
optical beam axis.
NOTE The peak intensity is expressed in candela.
3.27 Centre beam intensity - The value of the luminous intensity measured on the optical
beam axis
NOTE The centre beam intensity is expressed in candela.
3.28 Beam angle - The angle between two imaginary lines in a plane through the optical
beam axis, such that
these lines pass through the centre of the front face of the lamp and through points at which
the luminous intensity is 50 % of the centre beam intensity.
4 GENERAL REQUIREMENTS
The LED lamps for which compliance with this standard is claimed shall comply with the
requirements of the relevant safety standard IS 16102 (Part 1).
For measurement of lamp characteristics, see Annex A and Annex B.
It may be expected that self-ballasted LED lamps, which comply with this standard will start
and operate satisfactorily at voltages between 92 % and 106 % of rated supply voltage and at
an ambient air temperature between –10 °C and 50 °C and in a luminaire complying with IS
10322 Part-1 : 2012 ‘General requirements and test for luminaires’.
The requirements for individual LED lamps apply to 95 % of the production population.
5 MARKING
5.1 General Requirements for Marking
For this performance standard the following data are to be provided visible in addition to the
mandatory data of IS 16102 (Part 1) by the manufacturer or responsible vendor, and placed as
specified in Table 1.
5
Table 1 Places where Marking is Required
(Clauses 3.7, 3.8, 5.1, 9, 10, 11, 12.1, 12.2, 13 and 13.1, 15.2)
Sl.
No
Marking Details
(1)
(2)
(A)
Product1)
(B)
Packaging
X
ii.
Rated luminous flux (lm), Peak intensity and beam X
angle (see Note 2)
Lamp photometric code (see Annex C)
---
(B) Product
Data sheets or
Leaflets or
Website
(5)
X
X
X
iii.
Rated life and the related lumen maintenance (Lx)
---
X
X
iv.
Failure fraction (Fx), corresponding to the rated life
---
X
X
v.
Lumen maintenance category (see Table 4)
---
X
X
vi.
Rated correlated colour temperature (F 2700 to F 6500, X
see Table 2)
Rated colour rendering index
---
X
X
X
X
viii
.
ix.
Rated efficacy (lm/W) (see Note 3)
X
---
X
Dimensions, including dimensional tolerances
---
---
X
x.
Power Factor
X
X
X
(3)
i.
vii.
(4)
NOTES : 1 These requirements are minimal. Additional regional regulatory marking requirements may exist and overrule.
2 For directional lamps, peak intensity and beam angle are measured according to IS (under preparation).
3 For non-directional lamp, marking of peak intensity & beam angle are not mandatory.
4 ‘X’ = required, ‘---‘ = not required.
5.2 BIS Certification Marking
The self-ballasted LED lamps may also be marked with the Standard Mark.
5.2.1 The use of the Standard Mark is governed by the provisions of the Bureau of Indian
Standards Act, 1986 and the Rules and Regulations made thereunder. The details of conditions
under which the licence for the use of the Standard Mark may be granted to
manufacturers or producers may be obtained from the Bureau of Indian Standards.
6 DIMENSIONS
The LED lamp dimensions shall comply with the requirements as indicated by the
manufacturer or responsible vendor. If the luminaire itself or any covering (if applicable)
do not interfere with the dimensions of LED lamps, those lamps are also suitable as
replacement.
Compliance is checked by inspection.
7 TEST CONDITIONS
Where in the standard a testing time of 25% of rated life with a maximum of 6 000 h is
required and the same result can be achieved with a short-term test of at least 2000 h, this is
a valid option, provided that 25% of rated life with a maximum of 6 000 h test is conducted
in parallel.
NOTE – All maintained values shall be checked after 2000 hours Life and after accelerated operation Life test and the sample may consider to
comply with the claimed values of manufacture. Life test to be continue till 25% of rated life with a maximum of 6 000 h and if the sample
comply to Life test requirement then final compliance shall be established.
6
Test conditions for testing electrical and photometric characteristics, lumen maintenance and life are
given in Annex A.
7.1 Validation Tests for Component Changes
When any changes in components (like change in Housing, Optics, LED Package and driver)
made by manufactures in already certified product, the assessment of compliance w.r.t this
standard verified by tests as per Table 2. The change has to be documented in the
manufacturer’s technical file and relevant test reports should be available.
Table 2 Validation of Component Changes
Sl
No.
(1)
Part
characteristics
where
variations are
allowed (see
Note 2)
(2)
Conditions for acceptance
(3)
i.
Housing/chassis, The temperature measurement of various components ( including
heat
sink/heat LEDs solder point t LED ) shall be conducted . Also Photometric
management
parameters ( Luminous flux , CCT , CRI) measurement shall be
conducted.
Thermal management system evaluation showing the effect of
changes shall be documented in the manufacturer’s technical file..
ii.
Optics (see Note The Photometric parameters measurement (Luminous flux, CCT,
1)
CRI, peak intensity, beam angle ) shall be conducted. Also the
LEDs solder point t LED temperature shall be conducted.
The test results showing the effect of optical material change shall
be documented in the manufacturer’s technical file.
iii.
LED package
The Photometric parameters measurement (Luminous flux, CCT,
CRI, peak intensity, beam angle ) shall be conducted . Also the
LEDs solder point t LED temperature shall be conducted.
The test results showing the effect of LED Package changes
( including life and photo biological hazard )shall be documented
in the manufacturer’s technical file.
iv.
Controlgear
The Temperature Switching and Supply voltage switching test
shall be conducted. Also the LEDs solder point t LED temperature
and Photometry parameters measurement (Luminous flux, CCT,
CRI, peak intensity, beam angle ) shall be conducted
The test results showing the effect of changes in BOM shall be
documented in the manufacturer’s technical file.
NOTES
1 Optics include for instance secondary optics (lenses), reflectors, trims and gaskets and their interconnections. The results relate
to changes in luminous flux, peak luminous intensity, luminous intensity distribution, beam angle, shift in colour co -ordinates, shift
in CCT (see 12.1) and shift in colour rendering index (CRI) (see 12.2).
2
Any change on part tolerances are documented in the manufacturer’s technical file.
3
Examples are under consideration.
7
8 LAMP POWER
The initial power consumed by each LED lamp in the measured sample shall not exceed the
rated power by more than 10 percent.
The average of initial power consumed by the LED lamps in the measured sample shall not
exceed the rated power by more than 7.5 %.
9 LUMINOUS FLUX and EFFICACY
9.1 LUMINOUS FLUX
To comply with this standard, the initial luminous flux of each LED lamp in the measured
sample shall not be less than 90 percent of the rated luminous flux.
The grouping of LED lamps is defined in following table:
Table 3 Grouping
(Clause 9.1)
Sl. No
(1)
i
ii
iii
iv
v
Lamp Group
(2)
Luminous Flux Range
(3)
80 lm to 400 lm
401 lm to 800 lm
801 lm to 1200 lm
1201 lm to 1600 lm
1601 lm to 2000 lm
A
B
C
D
E
Luminous flux is measured according to Annex A.
The average initial luminous flux of the LED lamps in the measured sample shall not be less
than the rated luminous flux by more than 7.5 %.
9.2 EFFICACY
LED lamp efficacy shall be calculated from the measured initial luminous flux of the
individual LED lamp divided by the measured initial input power of the same individual
LED lamp.
Compliance: For all tested units in a sample, the LED lamp efficacy shall not be less than 80
% of the rated LED lamp efficacy as declared by the manufacturer or responsible vendor.
10 PEAK INTENSITY
Where a peak intensity value is provided by the manufacturer or responsible vendor , the
initial peak intensity of each LED lamp in the measured sample shall not be less than 75
percent of the rated peak intensity.
Compliance is checked according to Annex A.
NOTE
1 Compliance criteria for the average value of the peak intensity are under consideration.
2 This requirement is to be applied to LED lamps having a directional (spot) distribution.
8
11 BEAM ANGLE
Where a beam angle value is provided by the manufacturer or responsible vendor, the initial
beam angle of each LED lamp in the measured sample shall be within ±25 percent of the rated
beam angle.
Compliance is checked according to Annex A.
NOTE:
1 Compliance criteria for the average value of the beam angle are under consideration.
2 This requirement is to be applied to LED lamps having a directional (spot) distribution.
12 COLOUR NOMENCLATURE, VARIATION AND RENDERING
12.1 Colour Variation Categories
The rated colour of a lamp shall preferably be one of the following seven values:
F 2700, P 2700, F 3000, F 3500, F 4000, F 5000 or F 6500
For reference purposes, the standardized chromaticity co-ordinates and CCT values
corresponding to these colours are given in IS 2418 (Part 2).
The chromaticity of a LED lamp is measured both initially and maintained after an
operation time of 25 percent of rated lamp life (with a maximum duration of 6 000 h). The
measured actual chromaticity values both initial ( See Table 5 and 6 ) and maintained (
See Table 7) are expressed as fitting within one of these
categories ,
corresponding to particular color tolerances around the rated colour as indicated by the
manufacturer or responsible vendor. For colour marking requirements (see Table 1).
To comply with this standard, the measured initial colour variation of each LED lamp in the
sample shall be within the rated colour category (Either Table 5or 6) and maintained colour
variation in the sample shall be within tolerance as per Table 7. A tolerance category shall
be assigned according to the MacAdam ellipse size or quadrangle size that includes
(circumscribes) the chromaticity co-ordinates of all LED lamps in the tested sample.
Table 4 Correlated Colour Temperatures and Chromaticity Co-ordinates
Sl.
No.
(1)
i)
ii)
iii)
iv)
v)
vi)
vii)
viii)
Colour Indication
(2)
CCT
(3)
F 6500
F 5700
F 5000
F 4000
F 3500
F 3000
F 2700
P 2700
6400
5700
5000
4040
3450
2940
2720
2700
As per CIE 1931 /IS: 2418
(4)
x
y
0.313
0.337
0.329
0.342
0.346
0.359
0.380
0.380
0.409
0.394
0.440
0.403
0.463
0.420
0.458
0.410
Note – The letters in the ‘colour’ designation stand for:
a) F = values from IS 2418 (Part 2) and IS 15687 (Part 1); and
b) P = value close to the Planckian curve.
9
Note:- If central color point is defined as per CIE 1931/IS 2418, MacAdam ellipse size is applicable.
CCT and chromaticity co-ordinates are measured according to Annex A.
Table 5 Initial color variation category on nominal rated chromaticity co-ordinate values as
per IS 2418
Sl.
No
(1)
i
ii
iii
iv
Size of Macadam ellipse centred on rated
color target
(2)
3-step
5-step
7-step
>7 steps ellipse
Initial color variation
category
(3)
3
5
7
7+
Table 6 Initial color variation category on nominal rated chromaticity co-ordinate values as
per ANSI C78.377
ANSI TABLE DELETED
Table 7 Maintained color category on nominal rated chromaticity co-ordinate values
Sl.
Lamp change in chromaticity based on CIE 1976 u’v’
Maintained
No. diagram from initial measurement to the measurement
color category
(1)
at 25% of rate life with max 6,000 hours
(3)
(2)
i
0.003
3
ii
0.005
5
iii
0.007
7
iv
>0.007
7+
Example: CAT 5/7, meaning initial shift within a 5 step ellipse and maintained shift within a 7
step ellipse.
Note - This standard applies mainly to retrofit LED lamps for which it is important that the
chromaticity corresponds as much as possible to the lamps to be replaced. Tolerance areas are
based on the CIE 1931 MacAdam ellipses/Ellipses defined by macadam published in the
journal of the optical society of America 1943, as normally applied for (compact)
fluorescent lamps and other discharge lamps.
12.2 CRI
The initial colour rendering index (CRI) of an LED lamp is measured and a second
measurement is made after a total operation time of 25 percent of rated lamp life (with a
maximum duration of 6 000 h). To comply with this standard, all measured initial CRI values
from the sample LED lamps shall be greater than or equal to the rated CRI value (see Table
1) less 3 points and all measured maintained CRI values (at 25 percent of rated lamp life
with a maximum duration of 6 000 h) shall be greater than or equal to the rated CRI value less
5 points (see Table 1).
For method of measurement refer to IS 16106.
10
13 LAMP LIFE
Life of a self-ballasted LED lamp as defined in 3.5 is the combined result of the lumen
maintenance performance (see 3.1) and the life of the built-in control gear and the LED(s)
itself (see 13.2). An indication for the reliability and life of the control gear is attained by an
endurance test (see 13.2). Both elements are tested.
Reference is made to the definitions of 3.5 and 3.6, describing the indicated percentage of
tested lamps of a total batch (F50 or F10) that may fail the requirements of the tests under 13.1 and
13.2.
For marking of rated life (see Table 1).
13.1 Lumen Maintenance
This standard has opted for lumen maintenance categories that cover the initial decrease in
lumen until 25 percent of rated lamp life has elapsed with a maximum duration of 6 000
h, see Fig. 1. Based on the life definition (L70) there are three categories each covering an
additional 10 percent of lumen maintenance compared to the initial lumen output at 0 h
as given in Table 8.
NOTES
1 As the typical life of a self-ballasted LED lamp is (very) long, it is within the scope of this standard regarded unpractical and time
consuming to measure the actual lumen reduction over life (L70). For that reason this standard relies on approximation methods to
determine the expected life (L70) of any self-ballasted LED lamp.
The actual LED behaviour with regard to lumen maintenance may differ considerably per type and per manufacturer. It is not
possible to express the lumen maintenance of all LED’s in simple mathematical relations. A fast initial decrease in lumen output does
not automatically imply that a particular LED will not make its rated life.
2 Compliance of lumen maintenance after 25 percent of
have a nominal life of 25 000 h.
life time or 6 000 h implies that the lamps would
BISDG: Comments invited on specifying Minimum Life for Lamp.
The initial luminous flux shall be measured, which measurement is repeated at 25 percent of
rated lamp life (with a maximum duration of 6 000 h). The initial luminous flux value is
normalized to 100 percent; it is used as the first data point for determining lamp life.
The measured luminous flux value at rated lamp life (with a maximum duration of 6 000 h)
shall be expressed as a percentage of the initial value.
Measurement of lumen maintenance shall be carried out at 1000 h, 2000 h and at 25% of rated
life with a maximum of 6 000 h. Corresponding lumen maintenance value shall be 95% and
90% of rated luminous flux at 1000 h and 2000 h respectively. Lumen maintenance at 25% of
rated life with a maximum of 6 000 h shall be declared by the manufacturer.
NOTE — This will give additional insight as to the reliability of the measured values.
For marking of the lumen maintenance (Lx) and lumen maintenance categories (see Table 1).
A self-ballasted LED lamp is considered having passed the test when the following criteria
have been met (see Fig. 1):
a) The measured flux value at 25 percent of rated lamp life (with a maximum duration of 6 000
h) shall never be less than the maximum lumen maintenance related to the rated life (L70)
as defined and provided by the manufacturer or responsible vendor.
b) The measured lumen maintenance shall correspond with the lumen maintenance
category as defined and provided by the manufacturer or responsible vendor: Cat 7 to Cat 9
for L70. ( See Table 8)
The lumen maintenance figure may vary depending on the application of the LED lamp. This
standard applies a minimum value of 70 %. Dedicated information on the chosen percentage
should be provided by the manufacturer.
11
Table 8 – Categories of Lumen Maintenance After an accelerated operational time as stated
in 13.2.2
Lumen maintenance (%)
(2)
Sl
No.
(1)
i.
Category
(3)
 90
9
ii.
 80
8
iii.
 70
7
13.2 Endurance Test for Built-in Electronic Ballast
Since a self-ballasted LED lamp is a unit, which cannot be dismantled without being
permanently damaged, the built-in control gear has to be tested as part of a LED lamp.
13.2.1 LED lamps shall be subjected to a temperature cycling test, and a supply voltageswitching and accelerated operational life test as follows:
Note – All tests can be carried out in parallel with different LED lamps.
13.2 Endurance Test for Built in Electronic Ballast
Since a Self-Ballasted LED lamp is unit , which cannot be dismantled without being permanently
damaged , the built in control gear has to be tested as a part of LED lamp.
13.2.1 LED lamps shall be subjected to Temperature Cycling Test and Supply switching test as
follows :
12
a) Temperature cycling test
Temperature cycling test according IS 11000 Part 14 ( Sec 1 to 3) shall be checked with
specified rate of change .
The LED lamp is placed in a test chamber in which the temperature is varied from –10 °C to
+50 °C over a 4 h period and for a test duration of 250 periods (1 000 h). A 4 h period
consists of 1 h holding at each extreme temperature and 1 h transfer time (1 K/min) between
the extreme temperatures. The LED lamp is switched on at test voltage for 34 min and off for
34 min.
If a supplier claims suitability for operation at extended conditions (voltages or temperatures
outside of normal conditions, including high humidity) then:
a) lamps shall be tested under claimed extended conditions; and
b) lamps shall start and operate satisfactorily under claimed extended conditions; and
Compliance:
At the end of the test all the LED lamps shall operate for a period of at least 15 min and show
no physical effects of temperature cycling such as cracks or delaminating of the label.
NOTE The switching period of 68 min is chosen to get a phase shift between temperature and switching period
The temperature requirements of Clause A.1 do not apply.
NOTE — The aim of the test is to check the mechanical strength of the assembly.
b) Supply voltage switching test — The ON 30 s/OFF 30 s cycling shall be repeated at
test voltage for a number of cycles equal to half the rated lamp life in hour (Example: 10 k
cycles if rated life is 20 kh).
The temperature requirements of Clause A.1 do apply.
NOTE The purpose of this test is to check the endurance of the built-in electronic components.
Compliance:
At the end of the test all the LED lamps shall operate and have a luminous flux which stays
within the claimed lumen maintenance code for a period of at least 15 min.
13.2.2 Accelerated operational life test
The LED lamp shall be operated continuously without switching at a test voltage and at a
temperature corresponding to 10 K (see last paragraph and the note) above the maximum
specified operating temperature, if declared by the manufacturer and over an operational time
of 1 000 h. If there is no declared value then the test shall be performed at 50 °C. Any thermal
protecting devices that would switch off the LED lamp or reduce the light output shall be
bypassed.
Compliance:
At the end of this test, and after cooling down to room temperature and being stabilised, all
the lamps shall have an allowed decrease of light output of maximum 30 % compared to the
for at least 15 min.
The temperature requirements of Clause A.1 do not apply.
An accelerated test should not evoke fault modes or failure mechanisms which are not related
to normal life effects. For example, a too high temperature increase would lead to chemical or
physical effects from which no conclusions on real life can be made.
13
NOTE This test is to check for catastrophic failures.
14 DIMMING
Requirements are under consideration.
15 HARMONICS AND POWER FACTOR
15.1
The harmonics of the input current when measured in accordance with IS 14700 (Part 3/Sec 2)
shall be as given in 15.1.1 and 15.1..2
15.1.1 : No requirements below 5 W (not including 5 W) for all lighting equipment.
15.1.2 For lamps having an active input power more than 5 W and smaller or equal to 25 W,
the harmonic current shall comply with one of the following two sets of requirements:
– the harmonic currents shall not exceed the power-related limits of Table 9, column 2, or:
– The third harmonic current, expressed as a percentage of the fundamental current, shall not
exceed 86 percent and the fifth shall not exceed 61 percent. Moreover, the waveform of the
input current shall be such that it begins to flow before or at 60°, has its last peak (if there are
several peaks per half period) before or at 65° and does not stop flowing before 90°, where
the zero crossing of the fundamental supply voltage is assumed to be at 0°.
Table 9 Limits for Harmonic current
Sl
No.
(1)
i.
ii.
iii.
iv.
v.
vi.
Harmonic order
(2)
n
Maximum permissible
harmonic current per
watt
mA/W
(3)
Maximum
permissible
harmonic current
A
(4)
3
5
7
9
11
3.4
1.9
1.0
0.5
0.35
2.30
1.14
0.77
0.40
0.33
13 ≤ n ≤ 39
(odd harmonics only)
3.85
n
0.15
15
n
15.2 Power factor for LED lamp shall be minimum 0.9, except for <5W which can be minimum
0.5.
16 TEST FOR EMISSION (RADIATED AND CONDUCTED) OF RADIO
FREQUENCY DISTURBANCES
16.1 The emission (radiated and conducted) of radio frequency disturbances when measured in
accordance with IS 6873 (Part 5) shall be as given in 16.1.1 and 16.1.2.
16.1.1 LED lamp shall comply with the terminal voltage limits given in Table 6.
14
Table 10 Limits of Frequency Range
Against Emission
(Clause 16.1.1)
Sl No.
(1)
i.
ii.
iii.
iv.
v.
vi.
vii.
Frequency range
(2)
(3)
Limits
(4)
9 kHz-50 kHz2)
50 kHz-150 kHz2)
150 kHz -0.5 MHz
0.5 MHz-2.51 MHz
2.51 MHz-3.0 MHz
3.0 MHz-5.0 MHz
5.0 MHz-30.0 MHz
110
90-803)
66- 563)
56
73
56
60
—
—
56-463)
46
63
46
50
1. At the transmission frequency, the lower limit applies.
2. The limit values in the frequency range 9 kHz to 150 kHz are considered to be provisional which may be modified after some years
experience.
3. The limit decreases linearly with the logarithm of the frequency range of 9 kHz to 50 kHz and 150 kHz to 0.5 MHz.
of
16.1.2 Where the light source is operated at a frequency exceeding 100 Hz, the lamp shall comply
with the field strength limits given in Table 8.
Table 11 Limits of Loop Diameter Against
Transient Frequency Range
(Clause 16.1.2)
Sl
No.
(1)
Frequency Range
(2)
i.
ii.
iii.
iv.
v.
9 kHz-70 kHz
70 kHz-150 kHz
150 kHz-2.2 MHz
2.2 MHz-3.0 MHz
3.0 MHz-30.0 MHz
2m
Limits of Loop Diameter
(3)
3m
4m
88
88-582)
58-262)
58
22
81
81-512)
51- 222)
51
15-163)
75
75-452)
45-162)
45
9-123)
1. At the transmission frequency, the lower limit applies.
2. Decreasing linearly with the logarithm of the frequency.
3. Increasing linearly with the logarithm of the frequency.
17 SELECTION OF LAMPS FOR TESTS (SAMPLING)
17.1 Inspection Test Quantities (ITQ)
The sampling criteria, condition of compliance and tests to be carried out for ITQ shall be as
given in 16 and 17 of IS 16102 (Part 1).
NOTE — Method of selection of lamps for type testing are under consideration.
17.2 Rating Test Quantity (RTQ)
Rating test quantity consisting of 15 LED lamps shall be selected at random from the lamps
which have passed the inspection test. The RTQ shall comprises of the tests given in 18.2 and
18.3.
17.3 Life Test Quantity (LTQ)
15
Life test quantity consisting of 10 LED lamps shall be selected at random from the lamps which
have passed the rating tests. The LTQ shall comprise of the tests for life d lumen maintenance
17.4 Accidentally Broken and/or in Corrected Operated Lamps
Lamps, which are accidentally broken and or have been operated in conjunction with incorrect
controlgear before the life test is completed, shall, when necessary, be replaced to ensure that
the required number of test lamps completes the test. Any such broken or incorrectly
operated lamps shall be neglected in the evaluation of life test results.
NOTE — In order to avoid unnecessary delay, it is recommended that spare lamps be available through the test.
17.5 Test for Harmonics
The number of sample for this test shall be one.
17.6 Test for Emission (Radiated and Conducted) of Radio Frequency Disturbances
The number of sample for this test shall be one.
17.7 Temperature cycling test & supply voltage switching test
5 samples for each test to be taken for Temperature cycling test & supply voltage switching
test.
18 CONDITIONS OF COMPLIANCE
18.1 General Conditions
A batch shall be considered as confirming to this standard, if the requirements contained in
this standard are fulfilled. If the batch fails to satisfy the requirements of any of these requirements,
it shall be deemed not to comply with this standard.
18.2 Acceptance Test
A batch shall be considered to comply with the requirements of acceptance test if the
number of LED lamps failing does not exceed the qualifying limits given below:
Test Parameters
Qualifying Limits
For wattage of individual lamps
(see 8)
For initial luminous flux of
individual lamps (see 9.1)
Colour (see 10)
For all the requirements taken
together
4
4
2
5
18.3 Marking, Dimension, Centre Beam Intensity and Beam Angle
Compliance shall be considered to be achieved if all the lamps of the RTQ (see 15.2) meet the
requirements of 5, 6, 10 and 11.
In the event of one or more failures the remaining LED lamps of RTQ shall be tested, from
which not more than one shall fail.
18.4 Life and Lumen Maintenance
A batch shall be considered to comply with the requirements of life if the total number of
LED lamps having life shorter than 25% of rated life with a maximum of 6 000 h together
with those failing to meet the requirements of lumen maintenance, as follows:
-1
-2
Upto 2000 h
At 25 % of rated life with a maximum
16
of 6 000 h
18.5 Harmonics
Compliance shall be considered to be achieved if the sample selected meets the
requirements of this standard.
18.6 Emission (Radiated and Conducted) of Radio Frequency Disturbances
Compliance shall be considered to be achieved if the sample selected meets the
requirements of this standard.
19 TESTS
19.1 Classification of Tests
19.1.1 Type Tests
The following shall constitute the type tests to be carried out on selected sample of selfballasted LED lamps, sample being drawn preferably from regular production lot:
a) Marking (see 5),
b) Dimension (see 6),
c) Wattage (see 8),
d) Luminous flux and Efficacy (see 9),
e) Peak intensity (see 10),
f) Beam angle (see 11),
g) Colour chromaticity and colour rendering index (CRI) (see 12),
h) Life (see 13),
j) Harmonics (see 15), and
k) Emission (radiated and conducted) of radio frequency disturbances (see 16).
19.2 Acceptance Test
The following shall constitute as acceptance tests:
a) Marking (see 5),
b) Dimension (see 6),
c) Wattage (see 8),
d) Luminous flux (see 9),
e) Colour chromaticity and colour rendering index (CRI) (see 12).
17
ANNEX A
(Clauses 4 and 7)
METHOD OF MEASURING LAMP CHARACTERISTICS
A-1 GENERAL
All tests shall be made in a draught-free room at an ambient temperature of 27 ± 1°C
and a relative humidity of 65 percent maximum.
All tests shall be carried out at rated frequency. Unless otherwise specified for a specific
purpose by the manufacturer or responsible vendor, lamps shall be operated in free air in a
vertical base-up position for all tests including lumen maintenance tests.
The test voltage shall be stable within ±0.5 percent, during stabilization periods, this
tolerance being ±0.2 percent at the moment of measurements. For luminous flux maintenance
testing the tolerance is 2 percent. The total harmonic content of the supply voltage shall not
exceed 3 percent. The harmonic content is defined as the R.M.S. summation of the
individual harmonic components using the fundamental as 100 percent.
A-2 ELECTRICAL CHARACTERISTICS
A-2.1 Test Voltage
The test voltage shall be the rated voltage (see A-1). In case of a voltage range, measurements
shall be carried out at the mean value .
A-2.2 Ageing
Lamps normally do not require any ageing prior to testing. However, the manufacturer
may define an ageing period .
A-2.3 Stabilization Time
The lamp under test may be regarded as stable and suitable for test purpose, if the difference
of maximum and minimum readings of luminous flux or luminous intensity observed over the
last 15 min is less than 0,5 % and for lamp power is less than 1 %. If stabilisation conditions
are not achieved within 45 min, the measurement may be started and the observed
fluctuations shall be reported.
A-3 PHOTOMETRIC CHARACTERISTICS
A-3.1 Test Voltage
The test voltage shall be the rated voltage (see A-1). In case of a voltage range, measurements
shall be carried out at the mean value.
A-3.2 Establishing Lumen Values
The initial luminous flux shall be measured after thermal stabilisation of the LED lamp,
for conditions (see A-2.3). Reference is made to document IS 16106.
NOTE — Method of measuring the luminous flux of LED lamps is under discussion.
Annex B has been reserved for a description of an improved method.
A.4 Peak intensity
The peak intensity shall be measured in accordance with IS/IEC TR 61341 (currently under
printing).
A.5 Beam angle
The beam angle shall be measured in accordance with IS /IEC TR 61341 (currently under
printing)
18
The beam angle is not determined by the half peak, but by the half centre beam intensi ty.
ANNEX B
(Clauses 4 and 9)
METHOD OF MEASURING LUMINOUS FLUX FOR LED LAMPS
The contents of this Annex are under consideration.
ANNEX C
(Table 1)
HOW TO COMPOSE AND UNDERSTAND A PHOTOMETRIC CODE
Example of a lamp photometric code like 830/359, meaning:
8 – Initial CRI of e.g. 82
30 – Initial CCT of 3 000K
3 – Initial spread of chromaticity co-ordinates within a 3-step MacAdam ellipse
5– Maintained spread of chromaticity co-ordinates after accelerated operational life time within a 5step MacAdam ellipse
9 – Code of lumen maintenance after accelerated operational life time; in this example: ≥ 90% of the
0 h value.
The colour rendering value is expressed as one figure which is obtained by using the intervals, see
IEC/TR 62732:
CRI = 70 to 79→ code 7
CRI = 80 to 89 → code 8
CRI = ≥ 90 → code 9
The highest value is 9.
19