FAA/AC 150/5345-43J Specification for Obstruction Lighting Equipment

This specification sets forth the Federal Aviation Administration (FAA) requirements for obstruction lighting equipment used to increase conspicuity of structures to facilitate early obstruction recognition by pilots.

Type
Description

L-810
Steady-burning red obstruction light

L-810 (F)
Flashing red obstruction light, 30 Flashes Per Minute (FPM)

L-856
High intensity flashing white obstruction light, 40 Flashes
Per Minute (FPM)

L-857
High intensity flashing white obstruction light, 60 FPM

L-864
Flashing red obstruction light, 30 FPM

L-865
Medium intensity flashing white obstruction light, 40 FPM

L-866
Medium intensity flashing white obstruction light, 60 FPM

L-885
Flashing red obstruction light, 60 FPM

EQUIPMENT REQUIREMENTS

General.

This section addresses environmental, design, and photometric requirements for obstruction light equipment. Criteria for selecting the proper obstruction lighting equipment, installation tolerances, and administrative information are in AC 70/7460-1.

Environmental Requirements.

Obstruction lighting equipment must be designed for continuous operation under the following conditions:
1. Temperature:

a. Storage/shipping: -67° Fahrenheit (F)(-55° Celsius (C)to 130° F (55° C).

b. Operating: -40° F(-40° C) to 130° F(55° C).

2. Humidity.
95 percent relative humidity.

3. Wind.
Wind speeds up to 150 miles per hour (mph)(240 kilometeres per hour (kmph).

4. Wind-blown Rain. Exposure to wind-blown rain from any direction.

5. Salt Fog. Exposure to salt-laden atmosphere.

6. Sunshine. Exposure to solar radiation.

LISUN following instruments fully meet FAA/AC 150/5345-43J Specification for Obstruction Lighting Equipment

LSG-1950 Goniophotometer for Automotive and Signal Lamps

LSG-1950S Goniophotometer for Traffic Signal Lamps