(P8011-60) Specification Sheet

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P87-AT WITH P8011-60
Report No. 98188
No. Lamps: 1 Type Lamp: 75PAR30S/FL-GE Total Lumens: 1100
Fixture Efficiency: 21.4%
S/MH Ratio: 0.5
Single Fixture Data
Ceiling
Ht.(Ft.)
10% Values
Ft.-C Beam Dia.
Zero
Degrees
Ft.-C
50% Values
Ft.-C Beam Dia.
Ft.-C (Footcandles) are initial and measured 2’-6" from floor
16 0.3 15 2.7 1.3 8
14 0.4 13 3.7 1.8 7
12 0.5 11 5.4 2.7 5
10 0.9 9 8.7 4.3 4
8 1.6 6 16.1 8.1 3
Beam Angle - 59˚ Beam Angle - 32˚
Quick Calculator Charts
0 100 200 300 400 500
0
4
8
12
16
20
Initial Footcandles
2’6" from floor
Area per Fixture (sq. ft.)
Room Reflectances: 80% Ceiling, 50% Wall, 20% Floor
Ceiling Ht.= 9 ft.
Medium Room - RCR=5.0
120 to 200 square foot area
0 100 200 300 400 500
0
4
8
12
16
20
Initial Footcandles
2’6" from floor
Area per Fixture (sq. ft.)
Room Reflectances: 80% Ceiling, 50% Wall, 20% Floor
Ceiling Ht.= 10 ft.
Large Room - RCR=2.0
1500 to 2500 square foot area
5˚
15˚
25˚
35˚
45˚
55˚
65˚
75˚
85˚
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
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DISTRIBUTION CURVE INTENSITY DATA
488
424
380
303
168
104
72
51
31
17
11
9
8
6
6
5
3
2
0
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70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 0
80 70 50 30 10 0
RW
RC
10
9
8
7
6
5
4
3
2
1
0
Effective Floor Cavity Reflectance 0.20
ZONAL CAVITY COEFFICIENTS OF UTILIZATION
26 26 26 26 25 25 25 25 24 24 24 23 23 23 22 22 22 21
24 24 23 22 24 23 23 22 22 22 21 21 21 21 21 20 20 20
23 22 21 20 22 21 21 20 21 20 19 20 20 19 20 19 19 18
22 20 19 18 21 20 19 18 20 19 18 19 18 18 18 18 17 17
21 19 18 17 20 19 18 17 18 17 17 18 17 16 18 17 16 16
20 18 17 16 19 18 17 16 17 16 16 17 16 15 17 16 15 15
19 17 16 15 19 17 16 15 16 15 15 16 15 15 16 15 14 14
18 16 15 14 18 16 15 14 16 15 14 15 14 14 15 14 14 13
17 15 14 13 17 15 14 13 15 14 13 15 14 13 15 14 13 13
17 15 13 13 16 14 13 13 14 13 12 14 13 12 14 13 12 12
16 14 13 12 16 14 13 12 14 13 12 14 13 12 13 12 12 12