The boy touched the LED lights signal lever shock dying, LED lighting renovation project, two construction workers died of electric shock, electrocution caused problems LED lighting products has proclaimed. Philips Lighting Safety Commission last year after the company and the US Consumer Product (CPSC) for "after power pose a shock hazard," recalled about 99,000 led high bay lighting fixture wholesale products since the year because of the European Commission "may cause users to electric shock" and the 1 produced in China's LED lights from the market. LED lighting products, electrical potential security issue has caused widespread concern in the community.
Not long ago, in the list of substandard product quality supervision and inspection lamps Shanghai Quality and Technical Supervision announced in 2014 embedded, even three male Aurora, NVC and other well-known brands of LED lamps because of anti-shock protection substandard "serious quality problem "list.
So, what causes the LED lamps are frequent electrical shock hazard it? "White said, is the production of enterprises in order to save costs." Informed sources said that "the current LED lamps on the market are mostly plastic and aluminum combined with PC, where 1 / 3 to 1/2 of aluminum. in order to save costs, the majority of domestic enterprises to adopt a non-isolated power supply, high-pressure part of the direct connection and touch metal casing, only aluminum substrate as a resin layer of insulating material, so naturally generated great security risks. "
It is reported that, because of lighting in the structural design is difficult to achieve 100% completely drain, so more stringent safety requirements of European countries, the need for more fixtures 2000V high voltage test to ensure that the leakage risk control in certain range. To be able to pass security certification, manufacturers generally use isolated power supply. As for the huge domestic market price pressure, the isolated power higher than the non-isolated power supply cost of $ 1 to $ 2, accounting for almost half the price of the finished tube, so many domestic companies have chosen to use the low-end aluminum tube structure plus non-isolated power supply in order to save costs. But the products sold in the domestic market, it is difficult to secure certification by Europe and the United States.
In addition, the current large-scale application of LED lamps organic material, combustion will produce harmful fumes, has become a fatal case of fire safety hazards. In contrast, developed countries, subway and other public places, not just most of the wires going to put iron pipes, tubes also make use of non-combustible material, in order to ensure the safety of extreme situations.
"Admittedly, less stringent safety standards in the country is largely promoted the development of the industry, but also to many blind pursuit of low-cost business advantage of the loophole, a standard designed in accordance with the minimum standards, not the standard more is free to play. "
Apart from plastic tubes, LED lamp glass there is a technical route. Reporters from the China Association of Lighting Secretariat learned to FSL represented by the traditional incandescent glass manufacturers follow the original equipment and technology to produce some of the glass lamp LED lighting products, and to mulinsen represented by the emerging LED lighting business places plastic lamp-based PC.
Informed sources believe that the glass lamp light transmission rate than the PC plastic, easier to achieve high efficiency, but also likely to cause glare and discomfort; when it comes to fire, glass does not produce toxic gases such as non-flame retardant plastic, like a PC, but also because their fragile glass brought about a series of problems. "Each have their own advantages, the key applications." Zhang said.
In response, industry sources said, in fact, relative to the aluminum tubes, the most important feature is that the glass tube safe, because the height of the insulation and thermal conductivity, even when using non-isolated power supply, but also to ensure safety. Meanwhile, the glass bulb fire, high temperatures will not be deformed.
According to reports, after the recent domestic enterprises tireless efforts and innovation, glass lamp technical indicators have made great progress, compared to the general advantages of the pipe and more vivid. In addition to safety, energy at low cost and effective technology solutions through CE, UL certification, to facilitate exports outside, first, high transmittance glass in PC plastic, excellent thermal stability and glass 360 are in contact with air, heat evenly; second, a long glass tube light will not turn yellow, more tolerance, corrosion resistance, more durable; third, far less than the cost of a transparent glass "half plastic half aluminum "tube, even in order to prevent glare, plus costs, the cost of the inner wall of the glass after glass pipes and other scrub, spray or corrosion treatment process also has a great advantage; fourth, with respect to aluminum, PC plastic, glass cleaner . Glass lamp whole process of making carbon emissions is only about 1/2 of the aluminum tube, and anodized aluminum wastewater pollution problems. It would appear more fit glass lamp LED green concept; fifth, compared with traditional fluorescent tubes, glass tubes have great similarity, in line with most people's visual habits.
"Although it is difficult to say whether a comprehensive alternative to plastic glass tube lamp, but the use of glass lamps and LED lamps instead of the traditional aluminum LED lamp has become a popular trend."
Security solutions have yet to perfect lamp
LED glass tubes used in many companies as only good heat dissipation, low cost, can not avoid the problem of broken glass and splash.
Fang eliminate the old account, the new account was underway. Glass lamp lifted electric shock, fire and other safety hazards, but the new problem again, many companies currently use LED lamp glass figure only good heat dissipation, low cost, can not avoid the problem of broken glass and splashing, it can not pass UL certified drop test.
"Not long ago, under the Ministry of Housing and Urban-Rural Development issued a" project quality control two-year action plan, "the notice, in which the responsibility for the quality and safety of the construction unit project manager to be clear responsibility and accountability in the form of life-long commitment." Zhang stressed "the majority of LED lighting products and installation companies must pay attention to this, then we can not afford security issue has been sloppy."
"Industry in urgent need of led high bay light for sale glass splash solution." Shenzhen Rieu light technology a responsible person surnamed Liu told reporters that "the promotion of LED lamps, replacing the glass in the process, we look forward to domestic enterprises and multinational benchmark lighting are able to stick with non-discriminatory, applied to the standard of the global market for the development, production and sales together to solve security problems LED lamp. currently, there are already companies through proprietary coating and structural optimization, got UL certificate, which perhaps the return of the glass tube off the trend in the international market, because, after all, the value attributable to safety, environmental protection, low cost is a mature market. "
Insiders suggestions that led by the head of department or industry organizations, establish and improve the green LED lighting product safety assessment testing system and standards as soon as possible, at the same time, warranty, service and waste lamp recycling has also established a sound system and processes.
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