Crouse Hinds EVFT Illuminator Long Twin Tube Photometric Data
EVFT Illuminator
TM
Photometric Data
Long Twin Tube
Fluorescent Luminiaires
Illuminator two lamp luminaire with Reflector (without Guard)
Lamps: (2) 39 watt BIAX* fluorescent
CANDELAS
DEGREES LEFT RIGHT SIDE
10 792 797 703
20 820 821 658
30 757 777 582
40 648 709 488
50 567 632 370
60 474 535 239
70 340 469 109
80 201 312 21
90 102 116
100 9 7
110
120
130
140
150
160
170
180
Illuminator four lamp luminaire with Reflectors (without Guards)
Lamps: (4) 39 watt BIAX* fluorescent
in Plane A-A Plane B-B
0 729 729 729
LEGEND
PLANE A-A ACROSS LAMP AXIS
–––– PLANE B-B ALONG LAMP AXIS
6L
Footcandle Values for Isofootcandle Lines
MTG. HT
(FT) A B C D E F
8 10.0 5.00 2.00 1.00 0.50 0.25
10 6.4 3.20 1.28 0.64 0.32 0.16
12 4.4 2.22 0.89 0.44 0.22 0.11
16 2.5 1.25 0.50 0.25 0.13 0.06
CANDELAS
DEGREES LEFT RIGHT SIDE
10 1601 1520 1448
20 1633 1615 1346
30 1570 1602 1199
40 1530 1558 1000
50 1343 1390 763
60 1162 1208 492
70 803 921 225
80 375 488 45
90 136 168 2
100 13 18 1
110 2 6
120 1 4
130
140 2 1
150 1 1
160 1
170 2 1 1
180 2 2 2
in Plane A-A Plane B-B
0 1486 1486 1486
LEGEND
–––– PLANE B-B ALONG LAMP AXIS
* BIAX is a trademark of the General Electric Company.
PLANE A-A ACROSS LAMP AXIS
Footcandle Values for Isofootcandle Lines
MTG HT
(FT) A B C D E F
10 8.0 4.00 2.00 1.00 0.50 0.20
12 5.6 2.78 1.39 0.69 0.35 0.14
16 3.1 1.56 0.78 0.39 0.20 0.08
20 2.0 1.00 0.50 0.25 0.13 0.05
US: 1-866-764-5454 CAN: 1-800-265-0502 Copyright©2006 Cooper Crouse-Hinds
841
6L
EVFT Illuminator
TM
Coefficients of Utilization
Long Twin Tube
Fluorescent Luminaires
LUMINAIRE: EVFT 22320 with RAR1 Reflector
Lamps: Two (2) F39BX/SPX35/RS
Lumen Rating: 2900 Lumens/Lamp
Effective Floor Cavity Reflectance 20%
% Reflectance Room Cavity Ratio
Eff. Ceil. Wall 012345678910
70 .51 .46 .41 .38 .34 .31 .29 .26 .24 .22 .21
80
70
50 30 .47 .39 .33 .28 .24 .21 .18 .16 .14 .12 .11
30 30 .45 .38 .32 .27 .24 .20 .18 .16 .14 .12 .11
10 30 .43 .36 .31 .27 .23 .20 .17 .15 .13 .12 .10
0 0 .43 .35 .28 .24 .20 .17 .14 .12 .10 .09 .08
50 .51 .44 .38 .33 .29 .25 .23 .20 .18 .16 .15
30 .51 .41 .35 .29 .25 .21 .19 .16 .14 .13 .11
10 .51 .40 .32 .26 .22 .18 .16 .14 .12 .10 .09
70 .49 .45 .40 .37 .33 .30 .28 .26 .24 .22 .20
50 .49 .43 .37 .32 .28 .25 .22 .20 .18 .16 .14
30 .49 .41 .34 .29 .25 .21 .18 .16 .14 .12 .11
10 .49 .39 .31 .26 .22 .18 .16 .14 .12 .10 .09
50 .47 .41 .35 .31 .27 .24 .21 .19 .17 .15 .14
10 .47 .38 .31 .26 .22 .18 .16 .13 .12 .10 .09
50 .45 .39 .34 .30 .26 .23 .21 .19 .17 .15 .14
10 .45 .37 .30 .25 .21 .18 .15 .13 .11 .10 .09
50 .43 .37 .33 .29 .25 .22 .20 .18 .16 .14 .13
10 .43 .35 .29 .25 .21 .18 .15 .13 .11 .10 .08
DETERMINED IN ACCORDANCE WITH CURRENT IES PUBLISHED PROCEDURES
LUMINAIRE: EVFT 24320 with RAR1 & RAL1 Reflectors
Lamps: Four (4) F39BX/SPX35/RS
Lumen Rating: 2900 Lumens/Lamp
Effective Floor Cavity Reflectance 20%
% Reflectance Room Cavity Ratio
Eff. Ceil. Wall 012345678910
70 48 .44 .40 .37 .33 .30 .28 .26 .24 .22 .20
80
70
50 30 .45 .38 .32 .28 .24 .21 .18 .16 .14 .12 .11
30 30 .43 .37 .31 .27 .23 .20 .18 .16 .14 .12 .11
10 30 .41 .35 .30 .26 .23 .20 .17 .15 .13 .12 .11
0 0 .41 .34 .28 .24 .20 .17 .15 .13 .11 .09 .08
50 .48 .42 .37 .32 .29 .25 .22 .20 .18 .16 .15
30 .48 .40 .34 .29 .25 .21 .19 .16 .14 .13 .11
10 .48 .39 .31 .26 .22 .19 .16 .14 .12 .10 .09
70 .47 .43 .39 .36 .33 .29 .27 .25 .23 .21 .20
50 .47 .41 .36 .32 .28 .25 .22 .20 .18 .16 .14
30 .47 .40 .33 .29 .25 .21 .18 .16 .14 .12 .11
10 .47 .38 .31 .26 .22 .18 .16 .14 .12 .10 .09
50 .45 .39 .34 .30 .27 .24 .21 .19 .17 .15 .14
10 .45 .37 .30 .26 .22 .18 .16 .14 .12 .10 .09
50 .43 .38 .33 .29 .26 .23 .20 .18 .17 .15 .14
10 .43 .36 .30 .25 .21 .18 .16 .13 .12 .10 .09
50 .41 .36 .32 .28 .25 .22 .20 .18 .16 .14 .13
10 .41 .35 .29 .25 .21 .18 .15 .13 .12 .10 .09
DETERMINED IN ACCORDANCE WITH CURRENT IES PUBLISHED PROCEDURES
842
US: 1-866-764-5454 CAN: 1-800-265-0502 Copyright©2006 Cooper Crouse-Hinds
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