The United States UL interpretation about solar LED lamps and lanterns is the new standard

Note: UL ( 承销商LaboratoriesInc。 ) Is the United States engaged in the product safety certification and standard safety organization, has a great influence in North America and around the world. Headquarters is located in the United States, is engaged in the product evaluation and standard establishment has a history of 110 years, every year there are more than 18000 kinds of testing products, used in the UL mark on the product has more than 19 billion, throughout all over the world, a subsidiary of more than 60. According to UL company lighting planning, general manager of the Ministry of Commerce EliPuszkar revealed: UL involved are working to develop a series of LED Products) The security evaluation criteria.

in the technological innovation in the field of lighting, LED application is undoubtedly the most exciting, it will change the lighting market structure, its wide application is just around the corner. When it comes to leds, the technology itself is not a new thing, in the years before, had begun to use LED lights for instruments and equipment. With technology development, chips and materials on the performance has new improvement and improve, make the LED brightness and life has greatly improved, thus promote the more extensive use of LED.

today, many manufacturers have launched their own LED lighting products, with the large-scale use of LED lamps and lanterns products, soon we will see the LED will be the mainstream of lighting applications. Long life and almost do not need to maintain the two characteristics deeply attracted numerous lighting designers, coupled with its low energy consumption, strong adaptability, color and brightness of the advantages of good controllability, the LED lamps and lanterns is become the new darling of lighting products.

in order to ensure that the new LED lighting products like general lighting lamps and lanterns is accepted by the public and trust, UL has started to prepare the LED security evaluation criteria.

when a new product development and design, manufacturers should consider the following factors influencing the safe:

get an electric shock:

in order to prevent electric shock, general to separate treatment of two cases: (1) with Class2 power supply for electric power supply LED products; (2) connected directly to the power grid or use a Class2 power supply for electric power supply of LED lamps and lanterns. For (1) using Class2 of power supply devices, due to the power supply itself has the limitation of voltage and current, so there is no risk of electric shock; For (2) use other power supply products to its insulation performance to evaluate and the charged body can touch, and accord with the requirement of standard. But using Class2 power supply, want to consider the use of a special occasion - Damp environment, if the product used in damp environment, the open circuit voltage should not exceed 15 v ac ( 30 v dc) 。 Fire:

to avoid fire, to test and evaluation of products for many aspects, such as LED spacing, the structure and materials of scattering, the shell of the category and the way of installation position and working and so on. In spite of the product design, when we use the Class2 type power supply to limit the energy of the products so as to avoid or reduce the fire, but according to UL past experience, the product is still possible to achieve the high temperature of 90 ℃ degrees above ( The national building code which sets installed in ordinary combustible materials surface equipment temperature should not exceed 90 ℃) 。 Therefore, in the design of LED lighting products, consideration should be given to this on the one hand, and need to through the temperature test ( The surface temperature of lamps and lanterns of various components shall be within the rated temperature range of yourself) 。 Physiological harm:

the LED light to the eye or skin and other physical parts may produce harm, it has been in the limelight, but so far, have not been able to have a resolution of research to show that using the LED does not cause serious physical harm. For any kind of light source, use scattering pieces to decrease the intensity of light can effectively reduce the person of radiation injury.

UL in LED initiatives:

probably by the end of January this year, UL will officially released a new standard UL8750 - - Assess the draft with LED lamps and lanterns. On this basis, UL will use LED as light source, lamps and lanterns for the LED safety assessment. UL emphasize UL8750 is a standard coordinate with other standards ( Which does not belong to a specific standard of lamps and lanterns) , in the evaluation of products, in addition to evaluate the safety of the LED by this criterion, the product of lamps and lanterns still to the criteria for evaluation of current lamps and lanterns. Fixed type lamps and lanterns, for example, if you are using the LED as light source, UL8750 are used to evaluate the LED light source itself, in addition, also use UL1598 performance to evaluate the safety of the lamps and lanterns. Similarly, to use LED as light source, portable lamps and lanterns, also want to use UL8750 and UL153 product safety assessment. Standard technical expert group (

STP) :

in the first quarter of 2007, UL will form by producers, testing, certification bodies, the building inspector, government officials, consumer, commercial/industrial users, and so on standard technology of panel ( Is the STP - we are familiar with StandardTechnicalPanel) , the group on the basis of the above draft, will draft and publish a suitable LED the national standard ( The ANSI standard) To assess LED lighting products are sold to North America.