(P8009-60) Specification Sheet

P87AT WITH P8009-60
Report No. 98078
No. Lamps: 1 Type Lamp: 40A19 - GE Total Lumens: 505
Fixture Efficiency: 50.6%
S/MH Ratio: 1.3
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 0.0 41 0.4 0.2 18
14 0.1 35 0.5 0.3 15
12 0.1 29 0.8 0.4 13
10 0.1 23 1.3 0.6 10
8 0.2 17 2.3 1.2 7
Beam Angle - 114 Beam Angle - 67
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
DISTRIBUTION CURVE INTENSITY DATA
71
71
70
69
67
65
63
60
56
53
49
45
41
36
31
26
21
16
0
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
60 60 60 60 59 59 59 59 56 56 56 54 54 54 52 52 52 51
54 51 48 45 52 49 47 45 47 45 43 45 43 42 43 42 41 39
48 43 39 36 47 42 38 35 40 37 34 39 36 34 37 35 33 32
44 37 33 29 42 37 32 29 35 31 28 34 30 28 32 30 27 26
40 33 28 24 38 32 28 24 31 27 24 30 26 23 28 25 23 22
36 29 24 21 35 29 24 20 28 23 20 26 23 20 25 22 20 19
33 26 21 18 32 26 21 18 25 21 18 24 20 17 23 20 17 16
31 24 19 16 30 23 19 16 22 18 15 22 18 15 21 18 15 14
29 22 17 14 28 21 17 14 20 17 14 20 16 14 19 16 13 12
27 20 15 12 26 19 15 12 19 15 12 18 15 12 18 14 12 11
25 18 14 11 25 18 14 11 17 14 11 17 13 11 16 13 11 10