Specifications

P87-AT WITH P8060-28
Report No. 98198
No. Lamps: 1 Type Lamp: 60A19-GE Total Lumens: 865
Fixture Efficiency: 11.0%
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 39 0.2 0.1 17
14 0.0 33 0.2 0.1 15
12 0.0 27 0.4 0.2 12
10 0.1 22 0.6 0.3 10
8 0.1 16 1.1 0.5 7
Beam Angle - 110 Beam Angle - 65
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
32
32
31
31
30
29
27
26
24
22
20
17
15
12
9
7
4
2
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
13 13 13 13 13 13 13 13 12 12 12 12 12 12 11 11 11 11
12 11 11 10 11 11 11 10 11 10 10 10 10 10 10 9 9 9
11 10 9 8 10 10 9 8 9 9 8 9 8 8 8 8 8 7
10 9 8 7 9 8 8 7 8 7 7 8 7 7 7 7 7 6
9 8 7 6 9 7 7 6 7 6 6 7 6 6 7 6 6 5
8 7 6 5 8 7 6 5 6 6 5 6 5 5 6 5 5 5
8 6 5 4 7 6 5 4 6 5 4 6 5 4 5 5 4 4
7 6 5 4 7 5 5 4 5 4 4 5 4 4 5 4 4 4
7 5 4 3 6 5 4 3 5 4 3 5 4 3 5 4 3 3
6 5 4 3 6 5 4 3 4 4 3 4 4 3 4 4 3 3
6 4 3 3 6 4 3 3 4 3 3 4 3 3 4 3 3 3