FAA AC 150 5345-46D SPECIFICATION FOR RUNWAY AND TAXIWAY LIGHT FIXTURES

This specification covers the requirements for light fixtures for use on airport runways and taxiways

Federal Standard.

FED-STD-595B
Colors Used in Government Procurement

Military Publications.
Military Standard.

MIL-STD-810F
Environmental Test Methods and Engineering Guidelines

Military Specifications.

MIL-C-7989B
General Specification for Covers, Light-Transmitting, for Aeronautical
Lights

MIL-DTL-13924C
Coating, Oxide, Black, for Ferrous Metals

American National Standards Institute (ANSI) Publications.

ANSI/ASQC Z1.4
Sampling Procedures and Tables for Inspection by Attributes 1993

ANSI B1.1
Unified Inch Screw Threads(UN and UNR Thread Form)

ANSI B46.1
Surface Texture (Surface Roughness, Waviness, and Lay)
ANSI/EIA557
Statistical Process Control Systems

American Society for Testing and Materials (ASTM) Standard.

B-633
Standard Specification for Electrodeposited Coatings of Zinc on Iron
and Steel
Illuminating Engineering Society (IES) Publications.

IES LM-35
IES Approved Method for Photometric Testing of Floodlights Using
Incandescent Filament or Discharge Lamps
IES Guide for Calculating the Effective Intensity of Flashing Signal
Lights, published in Illuminating Engineering, Volume LIX, Page 747
(November 1964)

IESLM-54
Lamp Seasoning

Institute of Transportation Engineers(ITE)Standard.

ST-017
Equipment and Material Standards of the ITE, Vehicle Traffic Control
Signal Heads

Society of Automotive Engineers (SAE) Publication.

SAE-AS25050
Colors, Aeronautical Lights and Lighting Equipment, General
Requirements For

Photometric Requirements.

a The photometric performance of the fixtures is defined in Tables 1, 2, and 3. The beam
coverage angles in the table define the size of an ellipse, circle, or rectangle. (For this discussion, it is
assumed to be an ellipse, but the same guidelines apply to a circle or a rectangle.)

b The light intensity inside the ellipse, when averaged per paragraph 4.3, must equal or exceed
the intensity specified in the table. Additionally, the intensity must be at least one-half the specified value
everywhere inside the ellipse.

c For some fixtures, a 10 percent ellipse is also defined. The two ellipses are concentric; i.e.,
the main beam ellipse is exactly centered in the 10 percent ellipse. At every point on the 10 percent
ellipse, the light intensity must be at least 10 percent of the specified value.

d For in-pavement lights, part of the 10 percent ellipse may lie below grade; this area may be
disregarded. The light color must match the aviation colors defined in SAE-AS25050 except, as noted in
the tables I and 2.

e The average measured intensity may not be more than three times the specified average
intensity. For fixtures with a minimum but no average intensity requirement, the measured minimum may
be no more than three times the specified minimum intensity. Bi-directional, split color, fixtures are
exempt from this requirement if a single light source is used.

LISUN following instruments fully meet FAA AC 150 5345-46D SPECIFICATION FOR RUNWAY AND TAXIWAY LIGHT FIXTURES

LSG-1950S Goniophotometer for Traffic Signal Lamps

LSG-1950 Goniophotometer for Automotive and Signal Lamps