Q.
What level of lightning protection can I expect to see
from an LED based Obstruction Light ?
Answer.
The FAA Advisory Circular “Specification for Obstruction
Lighting Equipment”, AC No: 150/5345-43F, 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”.
This IEEE specification details the following voltage
and current threshold requirements:
61550; Voltage Spike: 6000V Line to Line
61550; Voltage Spike: 6000V Line to Ground
61550; Current Spike: 3000A each Line to Ground
The Dialight, 860 series has passed the testing required
to meet the ANSI/ IEEE specification listed above. Therefore,
the 860 series, LED based beacon has been tested to
and has passed the same stringent transient protection
standards as incandescent and strobe based products
in the past. The power and duration of all lightning
strikes can vary, and even products designed to the
IEEE standard may not withstand all strikes. But having
passed the FAA requirement for transient protection,
Dialight’s 860 series is capable of handling lightning
strikes at industry recognized levels.
Q. Can you replace the LED
bulb.
Answer. The light is a sealed unit and cannot be opened
in the field. Replacement involves removing the lamp
assembly from the wire housing and replacing with a
new one. see Obstruction lights
for part numbers
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