Job Information
Type:
"JSQPSU3PBE'BMM3JWFS."t t'BY
We reserve the right to change details of design, materials and finish.
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Lighting Systems
Silhouette
®
SB
1BHFPG
-VNJOPVT*OEJSFDU-JHIU5QFS'PPU /PNJOBM4FDUJPO
Mounting & Joiner Block Accessories
“X” Block with Suspension
SX36WH (white)
SX36AL (aluminum)
Inline block available (
SI36WH or SI36AL).
“L”Block with Suspension
SL36WH (white)
SL36AL (aluminum)
“T” Block with Suspension
ST36WH (white)
ST36AL (aluminum)
Power Feed End Set
SE36WH (white)
SE36AL (aluminum)
Cable Asse
m
bly
SC36
Sa
m
ple Run
Fixture Lengths & Mounting Locations
4-Foot Joiner
4-Foot Joiner
8-Foot Joiner
5/8” (1.59c
m
)
1-1/4” (3.18c
m
)
Power Feed
End Set
Cable
Asse
m
bly
8-Foot Joiner
8-Foot Joiner
96” (243.84c
m
)
48” (121.92c
m
)
48” (121.92c
m
)
96” (243.84c
m
)
96” (243.84c
m
)
20’ 1/8” (609.92c
m
)
8” (20.32c
m
)
4”
(10.16c
m
)
4” (10.16c
m
)
3.4”
(8.64c
m
)
8”
(20.32c
m
)
4”
(10.16c
m
)
4.6” (11.68c
m
)
4” (10.16c
m
)
CANDLEPOWER
ZONE
0 22 45 67 90
DEG.
CANDELAS
180
1101
1101
1101
1101 1101
175
1098
1105
1106
1127 1125
165
1077
1132
1205
1308 1305
155
1020
1150
1288
1334 1328
145
906
1120
1171
1180 1191
135
746
970
961
1065 1083
125
602
744
843
947
904
115
407
528
646
771
814
105
227
353
501
530
533
95
42
115
115
120
120
90
12
18
27
43
50
85
9
15
30
48
55
75
9
19
42
63
70
65
9
28
52
72
79
55
18
24
63
80
85
45
26
51
61
80
81
35
36
60
65
73
74
25
32
55
61
68
68
15
28
57
59
84
87
5
26
36
44
61
82
0
26
26
26
26
26
2,000
700
500
400
200
FOOTCANDLE
20
30
50
70 100
1
2
3
4
5
7
10
20
30
40 50
70
100
200
ROOM AREA IN SQUARE FEET
NUMBER OF FIXTURES REQUIRED
300
1,000
100
COEFFICIENTS OF UTILIZATION
% EFFECTIVE CEILING CAVITY REFLECTANCE
80
70
50
WALL REFLECTANCE
70
50
30
70
50
30
50
30
10
0
79
79
79
69
69
69
49
49
49
1
72
68
65
62
59
57
42
40
39
2
65
60
55
56
52
48
37
34
32
3
60
52
47
51
45
41
32
29
27
4
54
46
40
47
40
35
28
25
22
5
50
41
34
43
35
30
25
22
19
6
45
36
30
39
31
26
22
19
16
7
42
32
26
36
28
23
20
17
14
8
38
29
23
33
25
20
18
15
12
9
36
26
20
31
23
18
16
13
11
10 33
24
18
28
21
16
15
12
9
20% FLOOR CAVITY REFLECTANCE
ROOM CA
VITY RA
TIO
Suspension Length
12"
18"
24"
Footlamberts Above Fixture
216 147
113
Footlamberts Between Fixtures
24.3 26.5 30.1
Ceiling Brightness Ratio
8.9
5.5
3.8
Reflectances of 80% ceiling, 50% walls and 20% floor.
Light loss factor is .85, Room size is 50' x 50',
Run Spacing 10’. Ceiling Height 9’ to 12’. Values are
taken from the center of the room.
Quick Calculator and Ceiling Brightness
1. Find room area on
vertical axis.
2. Move across chart to
footcandle curve.
3. Move down to
horizontal axis and
read number of
fixtures required.
DISTRIBUTION
Zone
Lumens
% Lamp
% Luminaire
0-90
312
5.4
6.6
90-180
4444
76.6
93.4
0-180
4756
82.0
100.0
Calculations are for 28 watt T5 lamps, for 54 watt T5 lamps multiply by 1.7
90˚
85˚
95˚
105˚
75˚
65˚
55˚
115˚
125˚
180˚ 175˚ 165˚ 155˚ 145˚ 135˚
0˚ 5˚ 15˚ 25˚ 35˚ 45˚
1250
1000
750
500
250
0
90˚
0˚
Perfor
m
ance
REPORT NO:
LRL 299-1B
CAT NO:
SB24I281WH
LAMPS:
2F28T5
LUMENS:
2900
EFFICIENCY:
82.0
%
CANDLEPOWER CURVE