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| Content | Dialight Corporation 1501 Route 34 South • Farmingdale, NJ 07727 USA Tel: (1) 732-919-3119 • Fax: (1) 732-751-5778 • www.dialight.com MBTFFAQX001_C LED Obstruction Lighting and Lightning Performance One of the questions typically asked of LED based Obstruction Lighting is “What level of lightning protection can I expect to see from an LED based Obstruction Light?”The answer is in the FAAspecification. The FAAAdvisory Circular “Specification for Obstruction Lighting Equipment”, AC No: 150/5345-43E, clearly lists transient protection requirements for Obstruction Lighting as “The power input, control and monitor interface circuitry shall be designed to withstand the waveforms detailed in ANSI/IEEE C62.41- 1991”. IEEE C62.41 and IEC/EN61000-4-5 describes methods to test for immunity to surges generated by other electrical equipment and lightning.These standards describe the voltage waveform a surge test generator is to produce into an open circuit and the current waveform it would produce if driving a short circuit. The FAArequirement is for a waveform with peak open circuit voltage of 6kV and a short circuit current of 3000AThis is above the standard values in class 1-4 shown in IEC/EN61000-4-5, with test level 4 being a waveform with a 4kV/2000A characteristic. FAARequirement: Voltage Spike 6000V Line to Line Voltage Spike 6000V Line to Ground Current Spike 3000Aeach Line to Ground Dialight has exhaustively tested our beacons to this standard, far exceeding the testing done at the approval test labs. To be considered to have passed this test, the approval lab applies this transient 2x to the device. Dialight, in it’s develop- ment and evaluation, has tested some units to over 20 surges at the maximum 6kV both line to line and line to ground. Additional testing has included subjecting a single device to over 70 surges ranging from 100V to 6kV while operating at a supply voltage of over 270 VAC. Both by independent testing and even more rigorously in our own test labs, the Dialight L-864 beacon has passed the stringent requirements set forth by the FAA. While designing to IEEE standards doesn’t guarantee that the unit will withstand all lightning strikes, it has sufficiently demonstrated it’s ability to handle lightning strikes at industry-recognized levels. FAQ’S |
| Following Datasheets | Obstruction_Lighting_5 (1 pages) oct_radiationdate-e_5 (1 pages) ods_1 (1 pages) OHSAS18001_2007_Austin (1 pages) OHSAS_18000_1999_penang (1 pages) om9551sp_2 (5 pages) omrons-integrated-machine-controller-case-study_1 (2 pages) OpAmps_2 (30 pages) OpticsBrochure_5 (8 pages) outline_pack_info-e_5 (3 pages) |
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