Crouse Hinds NFL Series Photometric Data

6L

NFL Series

Photometric Data

Fluorescent Luminaires

Luminaire: All NFL Luminaires
To determine number and placement of luminaires, see Lighting Selector Guide in Section L

Candlepower Distribution Curve (in Candelas)

CANDELAS

Angle Along Across

0° 1049 1049
10° 1034 1056
20° 978 1071
30° 866 1075
40° 762 1027
50° 606 939
60° 416 838
70° 228 723
80° 92 549
90° 17 363
100° 19 243
110° 10 131
120° 546
130° 420
140° 49
150° 43
160° 40
170° 00
180° 00

ZONAL LUMENS

Zone Lumens

0–30 862
0–40 1462
0–60 2778
0–90 4130
0–180 4499

Photometric data, developed using two (2) F32T8/35K
2850 lumen lamps, represents the performance of all NFL
series luminaires.

ɀ Coefficient of Utilization – These values are for all NFL

series luminaires (Do not use multipliers).

ɀ Candlepower Distribution Cuarve (in candelas) and

Zonal Lumens – These values are for all NFL series
luminaires, adjusted by conversion factors (multipliers)
below.

Luminaire Lamp Type Factor
Series Qty Watts (Lumens ea.) (multipliers)

NFL4232 2 32 F32T8/35K 1.0

NFL4240 2 34 F40T12/RS 0.93

NFL2140 1 40 T5 Compact 0.55

Example:
ɀ Candlepower at 20° across for NFL4232 using 2-
F32T/35K lamps (5700 lumen total) is 1071 candelas.
ɀ Candlepower at 20° across for NFL2140 using 1 T5
compact lamp (3100 lumen total) is 1071 x .55 ⍧ 589
candelas.

Conversion

(2850)

(2650)

(3150)

Coefficient of Utilization: For all NFL Series Light Luminaires

Effective Floor Cavity Reflectance 20%

% REFLECTANCE ROOM CAVITY RATIO
Eff. Ceiling Wall 12345678910

80 50 .78 .67 .59 .52 .45 .40 .36 .32 .29 .26

70 50 .76 .65 .57 .50 .44 .39 .35 .31 .28 .26

50 30 .68 .57 .48 .42 .35 .31 .27 .24 .21 .19

30 30 .65 .54 .46 .40 .34 .30 .26 .23 .20 .18

10 30 .61 .51 .44 .38 .33 .29 .25 .22 .19 .17

0 0 .57 .46 .39 .33 .27 .23 .20 .17 .14 .12

844

70 .83 .75 .68 .62 .56 .51 .47 .44 .40 .37

30 .74 .61 .52 .44 .38 .33 .29 .25 .22 .20
10 .71 .56 .46 .39 .32 .28 .24 .20 .17 .15

70 .80 .72 .65 .59 .54 .49 .46 .42 .39 .36

30 .72 .60 .51 .43 .37 .32 .28 .25 .22 .19
10 .69 .55 .46 .38 .32 .27 .23 .20 .17 .15

50 .71 .61 .54 .47 .42 .37 .33 .30 .27 .24

10 .66 .53 .44 .37 .31 .26 .23 .20 .17 .15
50 .67 .58 .51 .45 .39 .35 .32 .28 .25 .23

10 .62 .51 .42 .36 .30 .26 .22 .19 .16 .14
50 .63 .54 .48 .42 .37 .33 .30 .27 .24 .22

10 .59 .48 .41 .35 .29 .25 .22 .18 .16 .14

US: 1-866-764-5454 CAN: 1-800-265-0502 Copyright©2006 Cooper Crouse-Hinds