Quantcast Figure 6-l. Light distribution patterns for roadway lighting

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TM 5-684/NAVFAC MO-200/AFJMAN 32-1082
TYPE I
TYPE
4 WAY
b
TYPE
TYPE II
4 WAY
d
TYPE
TYPE V
T Y P E IV
f
e
g
Figure 6-l. Light distribution patterns for roadway lighting
Table 6-l. Floodlight beam descriptions1
6-12. Airfield lighting.
Airfield lighting fixtures are covered by the Federal
Beam spread
Aviation Administration's (FAA) advisory circulars.
Beam type
degrees range
Projection distance
10 to 18.
240 ft and greater
1
m and
For many items there will be two or more specifica-
greater)
tions for qualified equipment which may not be
18 up to 29.
2
200 to 240 ft (61 to 73
identical in form, fit, and function. Care must be
3
29 up to 46.
175 to 200 ft (53 to 61
used in repair and replacement to install fixtures
4
46 up to 70.
145 to 175 ft (44 to 53
5
7oup to
whose performance characteristics are compatible
105 to 145 ft (32 to 44
6
100 up to 130.
80 to 105 ft (24 to 32
with the existing fixtures, particularly with respect
7
130 and up
Under 80 ft (under 24
to light output and aiming. Both the military and
the FAA maintain qualified products listing (QPL)
1This
table is reproduced by permission from IESNA Lighting
in the DOD Index of Specifications and Standards
Handbook, References and Application, Eighth Edition, 1993.
and the FAA checklist AC-00-2.8.
6-5





 


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