On May 23, 2007, Underwriters Laboratories (UL) undertook the development of LED safety standards covering LED and LED luminaires sold in the North American lighting market.
As a first step, UL recently released the UL8750 document titled "LED Light Source Survey Summary." This document will be the main document for the investigation of LED light sources (referred to as LED light sources used in UL listed lighting products) within the certification body.
In the first quarter of 2007, UL formed a standard technical team with manufacturers, test and standards organizations, electronics, building regulations inspectors, governments, public welfare units, consumers, commercial/home users, and supply chain companies. UL8750 is used as a starting point for the drafting and publication of LED standards that meet ANSI (American National Standards Institute) requirements.
The purpose of UL's goal is to get the same recognition and trust as any traditional lighting technology.
UL believes that LED manufacturing includes the following three important safety hazards:
Electric shock: For this, consider two applications: 1. LEDs powered by a secondary source; 2, wires connected or LEDs connected to a non-secondary source. In the first case, there is no danger of electric shock due to voltage and current restrictions. The only thing to be aware of is that the maximum line voltage of LEDs located in wet places should be limited to 15V (AC) or 30V (DC). In the second case, the standard insulation and accessibility requirements are required.
Fire: The performance of the luminaire is affected by many aspects (such as the distance between the LEDs, diffuser material and design, package form, installation, etc.). While reducing the probability of misfire by limiting the effective electrical energy of LED luminaires using secondary power sources, there is evidence that these systems may exceed the maximum temperature specified by US building codes for flammable surfaces - 90 degrees Celsius, due to the conversion of electrical energy by LEDs. Heat is generated for light energy. Therefore, LED light sources are designed to take into account the above and conduct temperature tests to determine that all components and outer surfaces in the luminaire operate at specified temperature levels.
Physiological hazards: Exposure to LED light sources can cause retinal damage and other health problems, which is a concern of UL. However, there are currently no definitive studies confirming that the use of this technology poses a significant risk of physical harm. Like any light source, the use of a diffuser can reduce the chance of people being harmed by electromagnetic radiation from the source.
As a first step, UL recently released the UL8750 document titled "LED Light Source Survey Summary." This document will be the main document for the investigation of LED light sources (referred to as LED light sources used in UL listed lighting products) within the certification body.
In the first quarter of 2007, UL formed a standard technical team with manufacturers, test and standards organizations, electronics, building regulations inspectors, governments, public welfare units, consumers, commercial/home users, and supply chain companies. UL8750 is used as a starting point for the drafting and publication of LED standards that meet ANSI (American National Standards Institute) requirements.
The purpose of UL's goal is to get the same recognition and trust as any traditional lighting technology.
UL believes that LED manufacturing includes the following three important safety hazards:
Electric shock: For this, consider two applications: 1. LEDs powered by a secondary source; 2, wires connected or LEDs connected to a non-secondary source. In the first case, there is no danger of electric shock due to voltage and current restrictions. The only thing to be aware of is that the maximum line voltage of LEDs located in wet places should be limited to 15V (AC) or 30V (DC). In the second case, the standard insulation and accessibility requirements are required.
Fire: The performance of the luminaire is affected by many aspects (such as the distance between the LEDs, diffuser material and design, package form, installation, etc.). While reducing the probability of misfire by limiting the effective electrical energy of LED luminaires using secondary power sources, there is evidence that these systems may exceed the maximum temperature specified by US building codes for flammable surfaces - 90 degrees Celsius, due to the conversion of electrical energy by LEDs. Heat is generated for light energy. Therefore, LED light sources are designed to take into account the above and conduct temperature tests to determine that all components and outer surfaces in the luminaire operate at specified temperature levels.
Physiological hazards: Exposure to LED light sources can cause retinal damage and other health problems, which is a concern of UL. However, there are currently no definitive studies confirming that the use of this technology poses a significant risk of physical harm. Like any light source, the use of a diffuser can reduce the chance of people being harmed by electromagnetic radiation from the source.
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