LED Guide - CPUT Active Web

Robert Henderson
 The presentation will look at standards
 Go onto what IEC 34 are working on
 List some SANS publications
 Setting urgent needs
 Suggesting a way forward and for these
 Electrical and photometric data required
Standards – why?
 Standardization, is there need for standards?
introduction of LEDs into the lighting market has and is
making manufacturers and users rethink their lighting
needs, test methods and the application of their existing
equipment. The rethinking is helped along its way due to
the world-wide energy shortage and in particular
here in South Africa.
 The goals of standardization can be to help with
independence of single
suppliers (commoditization),
compatibility, interoperability, safety, repeatability or
 Standards ensure desirable characteristics of products
and services such as quality, environmental friendliness,
safety, reliability, efficiency and interchangeability and at
an economical cost.
Standards - types
 Standards for products are broadly divided into two categories
namely that of Safety and Performance.
 Safety - Safety standards deal with the requirements that will
ensure that the products are safe and will not cause harm to
the user or the user’s building when used as recommended.
Safety standards offer the tests and test methods to verify that the
products are compliant. These safety standards may cover a
wide range of products.
 Performance - Performance standards deal with the way that the
product performs under a test situation. However as quote from
Wikipedia, “The existence of a published standard does not
necessarily imply that it is useful or correct. Just because an item
is stamped with a standard number does not, by itself, indicate
that the item is fit for any particular use. The people who use
the item or service (engineers, trade unions, etc.) or specify it
(building codes, government, industry, etc.) have the
responsibility to consider the available standards, specify the
correct one, enforce compliance, and use the item correctly.
Validation of suitability is necessary.”
LED Standard Terminology
The IEC has published some Standards and two Public
Available Specifications (PAS). The need for the PAS
documents is because these have not been accepted as
full Standards but have information that is very useful.
These documents suggest that the following quality
criteria should be considered when evaluating LED
manufacturer’s claims:
a) Rated input power
b) Rated luminous flux
c) LED luminaire efficacy
d) Luminous intensity distribution
e) Photometric code or the values of the next four measurements
f) Correlated Colour Temperature (CCT)
g) Rated Colour Rendering Index (CRI)
h) Rated chromaticity co-ordinate values both initial and maintained
i) Lumen maintenance code
j) Rated life (in h) of the LED module and the associated rated lumen
maintenance (Lx)
k) Failure fraction (Fy), corresponding to the rated life of the LED
module in the luminaire
l) Ambient temperature (tq) for a luminaire
TC 34 Working Group – March 2012
 TC 34 Working Group Meeting
 Auckland - New Zealand, March 26-30, 2012
 2. Standards Under
 a. Self-ballasted Lamps
 - IEC 60968 Safety Performance (edition 1)
 - IEC 60969 Performance (edition 1)
IEC 34 WG continued
 b. LED Modules and Lamps
 - IEC62031 LED Modules for General Lighting - Safety
 - IEC 62560 Self-ballasted LED Lamps for General Lighting Services
>50V, Safety Specification
- IEC 62612 Self-ballasted LED Lamps for General Lighting Services
>50V, Performance Requirement (edition 1)
- IEC 62663-1 Non-ballasted LED Lamps – Safety (edition 1)
- IEC 62663-2 Non-ballasted LED Lamps – Performance (edition 1)
- IEC TS 62504 Definitions for LED and LED Modules (Edition 2)
- IEC 62707-1 LED Binning Part 1: General Requirements (Edition 1)
- IEC 62707-2 LED Binning Part 2: Luminous Flux (Edition 1)
- IEC 62707-3 LED Binning Part 3: Forward Voltage (Edition 1)
- IEC 62717 LED Modules for General Lighting – Performance (Edition
 - IEC 62776 Double-capped LED Lamps for General
Lighting Services, Safety (Edition 1) WG Draft
IEC 34 continued
 3. New Work Items
 - CCFL Performance
 - CCFL Safety
 - EEFL Performance
 - EEFL Safety
 - TR Method of Translating Binning Structure to
- Self-ballasted LED Lamps for GLS, > 50V AC
rms or < 120V dc – Safety
- LED Lifetime Prediction
- OLED Panels for General Lighting – Safety
- OLED Panes for General Lighting – Performance
- Performance of LED Components
IEC 34 continued
 SC34C Standards Work Overview
 1. Standards Under Development/Review/Revision
- IEC 61347-2-8 Control Gear for LED Modules - Safety
- IEC 62384 Control Gear for LED Modules - Performance
- IEC XXXXX Draft LED Performance Luminaire PAS
- IEC 61347-2-XX Control Gear for Induction Lamps Safety
 2. New Project
 - IEC 62442-1 Energy Performance of Lamp Control Gear
 Part 1: Control Gear for Fluorescent Lamps – Method of measurement to
determine energy consumption of ballast-lamp circuits and efficiency of
Control Gear
 - IEC 62442-2 Energy Performance of Lamp Control Gear for HID Lamps
(excluding Fluorescent lamps) – Method of measurement to determine the
efficiency of the Control Gear
 - IEC 62442-3 Control Gear for LED Modules and Low Voltage
Halogen Lamps – Method of measurements to determine efficiency
of the central gear
IEC continued end
 SC34D Standards Work Overview
 1. Standards Under Development/Review/Revision
 - IEC 60598-2-20 Lighting Chains (includes LED)
 - IEC 60598-2-21 Sealed Lighting Chains (Rope Lighting) (includes LED)
 - IEC 62722-2-1 PAS: LED Luminaire Performance
 IV. LED Terms and Definitions
 Comments and Proposals by National Committees on the Committee
Draft of this Technical Specification under document 34/160/DC was
reviewed but was not completed due to lack of time. Review of
comments/proposal will continue next meeting.
 Acknowledgement and thanks to : Roberto C. Cristobal; Philippines;
April 12, 2012
SANS LED Standards
Standard number
SANS 62031 :2008 / IEC 62031:2008
LED modules for general lighting – Safety specifications
SANS 62384 :2008 / IEC 62384:2008
DC or AC supplied electronic control gear for LED modules –
Performance requirements
SANS available Standards
Standard number
IEC/PAS 62717 Edition
Available Specification
Public Performance requirements – LED Modules for general lighting
IEC/PAS 62722-2-1 Public Available Performance requirements – LED Luminaires for general
SANS compulsory Standards
Standard number
SANS 60598-1:2009
Edition 5 and Nat. amdt
1 / IEC 60598-1:2008
Edition 7
Luminaires - Part 1: General requirements and tests.
This SANS document, by reference, forms part of the Compulsory specification
for electrical and electronic apparatus, as published by Government Notice
No. R. 89 (Government Gazette 31844) of 6 February 2009.
LED Standards required
1. LED replacements for 50 mm diameter Quartz
Halogen lamps – Dichroic lamps
LED floodlights lamps – replacement for PAR 38
LED floodlights lamps – replacement 300W 500W
1000W linear quartz halogen lamps
LED linear lamps – replacement for 600mm,
1200mm, 1500mm tubular fluorescent lamps
LED luminaires for above, and
High bay luminaires
Street lanterns
LED replacements for 50 mm diameter Quartz
Halogen lamps – Dichroic lamps
 Eskom Standard used in the Residential Mass Roll out
(RMR) based on IEC 62612 Self-ballasted LED Lamps
for General Lighting Services >50V, Performance
Requirement (edition 1)
 Needs to be amended
 Light output is to be added to be consider for a rebate
 50W QH lamp replacement lamp shall have a light output of 600 to
800 lumens
 50W QH lamp replacement lamp shall have a light output of 600 to
800 lumens
 35W QH lamp replacement lamp shall have a light output of 300 to
500 lumens
 Tolerance allowed 5% and the power of the lamp used to calculate
the rebate.
 Colour of lamps warm white 2800 plus tolerance ±7%
 Other?
Intensity, Beam angle and Colour
Warm White
Pure White
Cool White
Quartz Halogen White
LED floodlights lamps – replacement for
PAR 38 120W and
LED floodlights lamps – replacement 300W
500W 1000W linear quartz halogen lamps
 Existing IEC LED lamp standards could be used.
 Mass of LED lamp is high and the lamp holders
should be checked.
Replacement lamps
1550 grams and 800 g
Note LEDs on top of left not burning and the heat
sink material
LED linear lamps – replacement for 600mm,
1200mm, 1500mm tubular fluorescent lamps
 These have the same challenges as the T5 retrofit and
the SANS/IEC 60598 should be amended to include the
G13 lamp cap but there is an IEC draft for LED tubular
lamps and this is recommended to be used.
 The IEC LED draft offers a better solution as it looks at
LEDs and their test systems.
 Test facilities may need to be arranged and hence if this
is used as a guide or ARP and later become a VC
IEC draft Double-capped LED lamps for general
lighting services –Safety specifications
 1 Scope
 This International Standard specifies the safety and interchangeability
requirements, and the
 exchange operation together with the test methods and conditions required
to show compliance of
 double-capped LED lamps with caps G5 and G13, intended for replacing
fluorescent lamps with the
 same caps, having:
 – a rated power up to 60 W;
 – a rated voltage of up to 250 V;
 Such LED lamps are designed for replacement without requiring any
modification of the luminaire.
 The existing luminaires into which the double-capped LED lamps are fitted,
can be operated with
 electromagnetic or electronic control gear.
 The requirements of this standard relate only to type testing.
 Recommendations for whole product testing or batch testing are given in
Annex A.
Typical information
 5.3.2 Graphical instruction (IEC Draft)
 This clause can be used instead of 5.3.3. The steps of applying the
product to an existing luminaire shall be as given in Figure 8.
 Switch off – remove - replace - connect - switch on
 Figure 8: Schematic steps of removing a fluorescent lamp
and inserting a double-capped LED lamp
 Note no safety circuit shown – SA will require a safety fuse
this is in the text of IEC draft
Proposed Guide lines LED Tubular lamps
1. Use the T5 retrofit guide lines as the min basis
2. Labels three off positions in retrofit
3. Circuit diagrams shown with changes
4. Luminaire tested with lamps especially retrofit
5. LED replacement lamps not recommended for
emergency luminaires as a refit but recommend
new luminaires are used here.
6. Zone classified luminaires must be retested with
the LED lamps and certificates provided.
7. All luminaires tested to have photometric data
available .
LED luminaires for above, High bay
luminaires and Street lanterns
 Used the amended SANS/IEC 60598 safety and
call for SANS 475 testing for performance data.
 Phase this is but issue a working guide so that
Users can specify correctly and manufacturers
can compete on an equal basis.
 Street light standard is the most urgent followed
by high bay luminaires for stores.
LED modules – replaceable?
Light output and life
 All LEDs must state the light output initial value and
the value at 1000 hours, 2000 hours and 15000 hours.
The LED survival must be 2% failure before 1000
hours 5 % at 2000 hours and not more than 50% AT
15000 hours. L70F50 ≥ 15000 h=max 50%lamps having
lumen maintenance below 70% after 15000 hours and
L85F05 ≥ 1000h = h=max 5%lamps having lumen
maintenance below 85% after 1000 hours
CRI greater than 80
Efficacy NDLS 65 lm/W DLS 55 lm/W and increasing
Ref European LED Quality Charter
Batch testing is required.
Electrical – power and power
Electrical – power and power factor?
 This is a quick proposal of ideas but South Africa
requires these Standards or guidance so that the
local industry can establish themselves,
importers can bring in safe and efficient LEDs
and products, inter-changeability can be
achieved with reliable service for users
 Users can specify products fairly and get
competitive prices.
 Stock holding can be limited
Thank you.

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