Safety Certification of Solid-State
Lighting Products
September 23, 2009
Todd Straka
Director - Lighting Services
Discussion Points for Today’s Webinar
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Product Safety Certification Process Overview
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Key Product Safety Standards for Solid-State Lighting
Products
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How to Efficiently Navigate Through the Product Safety
Certification Process
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Don’t Forget Performance!
Product Safety Certification
• Product Safety Compliance is a legal requirement worldwide.
• Per OSHA requirements, electronic equipment is acceptable if
listed by a Nationally Recognized Testing Laboratory (NRTL).
• NRTLs are qualified private organizations that meet the
requirements in OSHA regulations under 29 CFR section
1910.7 to perform independent safety testing and product
certification.
Basic Steps to Product Certification
Step # 1
Product Construction / Design Review
Review:
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Bill of Materials
Individual Component & Material Ratings
– Use of Recognized or Unrecognized Components/Materials
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Product Design Drawings
Spacings / Dimensional Requirements
Determination of Applicable Tests per Standard
Basic Steps to Product Certification
Step # 2
Product Testing
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Product to be tested per the applicable requirements of the
standard. May include tests such as:
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Temperature Tests
Electrical Tests
Dielectric Tests
Strain Relief Tests
Environmental Tests (Wet Locations)
Mechanical Tests
Basic Steps to Product Certification
Step # 3
Issuance of the Formal Test Report & Authorization to
Mark (ATM)
– Permission to Label Product with Applicable Safety Mark
from an NRTL
Basic Steps to Product Certification
Step # 4
Participate in NRTL Follow Up Services Program
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Ongoing manufacturing facility inspections (quarterly / monthly) to
ensure consistent design, production, and labeling of the product.
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Maintain / Update Files to Remain Current with Latest Revision of
Applicable Stna
Applicable Safety Standards for LED Lighting Products
Product Safety Standards for LED Lighting
Existing Lighting Standards still apply for LED Lighting,
but evaluations are now conducted incorporating:
UL 8750 Safety Standard for LED Lighting
Product Safety Standards for LED Lighting
Fixed Luminaires
UL 1598 / CSA C22.2 # 250 Luminaires (+ UL 8750)
UL 1573 Stage & Studio Lighting (+ UL 8750)
UL 1574 Track Lighting (+ UL 8750)
Portable Luminaires
UL 153 Portable Electric Lamps (+ UL 8750)
UL 1993 Self-Ballasted Lamps and Lamp Adapters (+ UL 8750)
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3rd Edition, August 28, 2009
Added requirements covering LED Driver Circuitry
Added requirements / limits for LED Light Sources
Now Harmonized with ANCE (Mexico) and CSA (Canada)
Replacement LED Lamps
Product Safety Standards for LED Lighting
Specialty Luminaires
UL 48 Electric Signs (+ UL 8750)
UL 676 Underwater Lighting Fixtures (+ UL 8750)
UL 844 Fixtures for Use in Hazardous (Classified) Locations (+ UL 8750)
UL 924 Emergency Lighting and Power Equipment (+ UL 8750)
UL 1786 Nightlights (+ UL 8750)
UL 1838 Low Voltage landscape Lighting Systems (+ UL 8750)
UL 1994 Low-level Path Marking and Lighting Systems (+ UL 8750)
UL 2108 Low Voltage Lighting Systems (+ UL 8750)
UL 2388 Flexible Lighting Products (+ UL 8750)
UL 8750
What Does It Cover?
LED Equipment that is an integral part of a Luminaire, including:
• LED Drivers
• LED Controllers
• LED Arrays
• LED Modules
• LED Packages
The requirements found in UL 8750 are intended to supplement those
found in the existing luminaire standards previously identified.
UL 8750 Current Status
May 2009
UL 8750 1st Edition was released to the Standards Technical Panel
(STP) for Review and Comment
July 2009
Closed Ballot – Consensus Obtained
150 Comments Received
September 2009
Revised Proposed Standard Published Sept. 11, 2009
October 2009
Recirculation / Comment Period Ends Oct. 26, 2009
November 2009
Target for Final Published Standard
How to Efficiently Navigate the Product
Safety Certification Process
Where Do You Intend to Sell Your Products?
What global markets do you wish to enter?
Thinking globally from the outset will save you $$$ in the
long run!!!
How to Efficiently Navigate the Product
Safety Certification Process
Design with Compliance in Mind
Involve your certification partner at the R&D and Design
Phases of your product life cycle.
– What components will you use? Existing / Proprietary?
– Material / Component Ratings?
– Recognized?
How to Efficiently Navigate the Product
Safety Certification Process
Be Mindful of the Main Safety Concerns with LED Lighting
• RISK OF ELECTRIC SHOCK
• RISK OF FIRE
• BIOLOGICAL HAZARDS
How to Efficiently Navigate the Product
Safety Certification Process
RISK OF ELECTRIC SHOCK
UL 1310 Class 2 Power Supplies
– Reduced shock and fire hazard due to current and voltage limitation.
UL 1012 Power Supplies Other Than Class 2
– Must comply with standard insulation and accessibility requirements.
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Enclose/Barrier live parts to prevent physical contact
Insulate live parts with appropriately rated materials
Utilize appropriate spacings live and accessible parts
How to Efficiently Navigate the Product
Safety Certification Process
RISK OF FIRE
How will you manage thermal effects of your LED Product?
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Take into account proximity and spacing of LEDs
Material and design for diffuser?
Type of enclosure utilized / enclosure flame ratings
Installation scenario
– Thermal dissapation relies on ambient temperature and thermal
path design.
How to Efficiently Navigate the Product
Safety Certification Process
BIOLOGICAL HAZARDS
Exposure to Ultra Violet Wavelengths (100 – 400 nm) are of concern.
– U.S. & Canada currently do not have mandatory standards or
regulations.
– Organizations such as IESNA, ANSI, CIE, IEC are actively evaluating
How to Efficiently Navigate the Product
Safety Certification Process
Identify as Many Product Variations as Possible
– Will allow grouping of similar products into families which may:
• Minimize total number of samples required for evaluation and
testing.
• Lower total project certification & testing fees.
• Provide quicker market entry for your entire product line.
How to Efficiently Navigate the Product
Safety Certification Process
Stay Informed!
– LED Technology continues to aggressively advance!
– Tap into industry resources to help you keep pace of everchanging product safety and performance standards.
» Industry Meetings / Events
» Standards Development Committees
» Trade Publications
» Online Resources
Don’t Forget Performance!!
Enclosure Testing per IEC 60529
Ingress Protection Testing
Ensures your product will withstand varying degrees of Moisture and Dust Intrusion.
First Number
Second Number
IP 0x - No Protection
IP x0 - No Protection
IP 1x - Objects > 50mm
IP x1 - Vertically Dripping Water
IP 2x - Objects > 12mm
IP x2 - 75 to 90 Degrees Dripping Water
IP 3x - Objects > 2.5 mm
IP x3 - Sprayed Water
IP 4x - Objects > 1 mm
IP x4 - Splashed Water
IP 5x - Dust Protected (Vacuum)
IP x5 - Water Jets
IP 5x - Dust Protected (Non-Vacuum) IP x6 - Powerful Water Jets
IP 6x - Dust Tight
IP x7 - Effects of Immersion
IP x8 - Indefinite Immersion
New Standards Released in 2008
IESNA LM-79-08 - Approved Method for the
Electrical and Photometric Testing of SolidState Lighting Devices
(Applies to both LED Luminaires and LED Light
Sources to be used in retrofit or replacement scenarios.
Does not cover LED Modules, LED Packages or
Individual LEDs)
“Absolute Photometry” vs. “Relative Photometry”
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Total Luminous Flux (lumens)
Luminaire Efficacy (lm/W)
Color (Chromaticity, CCT, CRI)
Intensity Distribution
New Standards Released in 2008
ANSI C78.377-2008 Specifications for the Chromaticity of
Solid-State Lighting Products
• Specifies recommended chromaticity (color) ranges for White LED’s,
including Correlated Color Temperatures for SSL Products such as LED
Luminaires & Integrated LED Lamps
• For General Indoor Applications
New Standards Released in 2008
IESNA LM-80-08 - Approved Method for Measuring Lumen
Maintenance of LED Light Sources
(Applies to LED Arrays, Packages, & Modules only, not Luminaires)
• Provides test method for Lumen Maintenance
(L70 Hours = Time to 70% Lumen Maintenance)
• Operation of LED Light sources between photometric
measurements shall be at three case temperatures:
55C, 85C, and XX (mfrs choice)
• Test Duration: Minimum of 6,000 hours with measurements at 1,000
hour intervals
**NOTE: Standard does not provide guidance regarding predictive
estimations or extrapolation. IES TM-21-xx which is currently under
development will address this.
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Thank You
Questions / Inquiries?
Todd Straka
Director – Lighting Services
Intertek
E-Mail: todd.straka@intertek.com