US EPA (Environmental ProtecTIon Agency, EPA) and DOE (Department of Energy, DOE), released in stages since 2010 Energy Star (Energy Star®) and LighTIng Facts standards for LED light fixtures / bulbs, let's related businesses The specifications of LED lighting products have been followed. At present, the international LED manufacturers are relying on the life evaluation and product specifications of LED products. In other words, if LED manufacturers want to enter the international LED lighting market, they are bound to obtain the LED Energy Star certification.
In the ENERGY STAR section, on July 6th, 2011 (2011), the EPA integrated the two large-scale luminaire specifications for residential lighting (RLF) and solid-state lighting (SSL Luminaires) into [ENERGY STAR] in order to simplify the qualification review program. ® Luminaires Program Requirement V1.1], and to provide for the implementation of the official start of this year (2012) April 1, in addition to the bulb portion is also integrated into [ENERGY STAR® Program Requirements for Integral LED lamps V1.4], two specifications In addition to the increase in the number of audited data items, the requirements for [LM-82 Photoelectric Characteristics Specification] and [TM-21 Life Prediction Specification] have been included in the discussion.
The LM-82 is currently not officially published in the North American Lighting Association (IESNA). Its content is mainly for the verification of the electrical and optical properties of LED Light Engines and Integrated LED Lamps at different temperatures. The measurement method is similar to LM-79. -08 plan, but the focus is on the characteristic impact assessment of temperature versus electrical/optical parameters.
Another part is the IESNA on July 25, 2011 issue of TM-21-11 (ProjecTIng Long Term Lumen Maintenance of LED Light Sources), this specification is mainly a forecast for the LED light source performance and lifetime, and with the recently advertised The LM-80-08 LED lumen maintenance test was performed using the experimental data of LM-80-08 to estimate the long-term performance of LED components and lamps/bulbs.
First, use TM-21 to estimate the life steps of LED lamps
In order to give the LED industry a clearer concept of TM-21 and understand how to make good use of TM-21 to estimate LED products, the author will explain the application and estimation of LM-80-08 and TM-21-11 in four procedures. the way:
Step 1: The LED component supplier performs an LM-80-08 experiment on its LED Source (Package/Array/Module) at three temperatures (55 ° C / 85 ° C / self-selected temperature) for at least 6,000 hours.
Number of samples required: (related to the estimable time)
Test time requirements: (connected with estimation accuracy)
At least 6,000 hours, recommended for 10,000 hours, the LED light attenuation data required to be tested every 1,000 hours, the shorter the interval (for example: 500 hours) can improve the accuracy of the estimation.
Step 2: Estimate the long-term life data of the three test temperatures (55 ° C / 85 ° C / optional temperature) according to the TM-21-11 formula.
Obtain the average value of each temperature experiment data, and the test data take-out time rule is:
1.Shape:Conoid ,Multi-pyramidal,Columniform,polygonal or conical
2.Material:steel plate.stainless steel compound plate,stainless steel plate,ect.(anticorrosion treatment with hot galvanization,also color polyester power could be coated on the surface)
High strength low alloy steel Q235,Q345,GR65,GR50 to ensure the mechanical properity of microelement in order to ensure the quality of galvanization (other materials are also avaliable on request)
3.Jointing of pole with insert mode,innerflange mode,face to face joint mode
4.Design of pole :against earthquake of 8 grade ,aganist wind pressure of 160
5.Minimum yield strength:355 mpa
6.Minimum ultimate tensile strength :490 mpa
7.Max ultimate tensilestrength:620 mpa
8.Certificate:ISO9001-2000
9.Length:Within 14m once forming without slip joint
10.Welding:It has past flaw testing.Internal and external double welding makes the welding beautiful in shape
11:Packages:Our poles as normal cover by Mat or straw bale at the top and bottom ,anyway also can following by client required , each 40HC or OT can loading how many pcs will calculation base on the client actually specification and data
Our lighting equipment are made from quality sheet from bending,forming,automatic welding and hot galvanization.We can reach one-run machining length of 14m,and can bend sheet thickness up to 25mm.We adopt advanced welding procedures ,automatically weld main joints and reach rank-II welding quality.
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YIXING FUTAO METAL STRUCTURAL UNIT CO.,LTD( YIXING HONGSHENGYUAN ELECTRIC POWER FACILITIES CO.,LTD.) , http://www.chinasteelpole.com