US LED tube latest technical content updated
On August 25, 2016, the US Underwriters Laboratories (NII) updated its LED lamp technology for direct replacement fluorescent tubes. It is reported that the latest technical resolution supersedes the previous version issued on February 20, 2015, and is scheduled for this year. At the end of the formal inclusion of UL1993 standard.
It is understood that the latest technical resolution in a number of breakthroughs before the Type A LED tube into the North American market, the technical bottleneck is expected to enable UL to help more LED manufacturers Type A LED lamp quickly into the North American market, direct Replace the North American market a large number of double-ended straight lamp, U-tube, single-ended CFL lamp and ring lamp.
According to the inspection and quarantine personnel interpretation, the latest technical resolution of the content update is as follows: First, the test using constant current power supply, instead of the original constant voltage power supply, cancel the original current limit; Second, if Type A LED lamp Only replacement for electronic ballasts T5 fluorescent tubes, LED lamps and lamp pin between the DC component does not require; Third, if the LED lamp with a metal lamp or other contact with non-carrying metal Parts, pins to the metal parts of the electrical clearance requirements lower than before; Fourth, parts failure test from 5 seconds after the reading to 5 minutes after reading; Fifth, clear the cathode impedance test method.
Inspection and quarantine departments suggested that the new technical resolution should be word for word interpretation, grasp the basic content of the new regulations, understand the new regulatory requirements, sort out the similarities and differences between the old and new regulations. All enterprises should combine their own characteristics of LED products, select representative samples, from the old and new technical standards similarities and differences to start with the specific products, theory with practice, improve their product quality, so that enterprises in the international trade environment in a dominant position.