architecture - engineering - construction
PFO Lighting
PFO Lighting
PFO LIghting Products - Page 16
PFO Lighting
28"
ALUMINUM LOW BAY
Lamp:M400/U
Lumens:36000
Input Wattage:460
Spacing Criteria:1.8
| Candle Power |
| DEG |
CP |
DEG |
CP |
| 0 |
4755 |
50 |
7522 |
| 5 |
4853 |
55 |
7366 |
| 10 |
5134 |
60 |
6475 |
| 15 |
5290 |
65 |
4399 |
| 20 |
5204 |
70 |
3124 |
| 25 |
5205 |
75 |
2267 |
| 30 |
5193 |
80 |
1536 |
| 35 |
5250 |
85 |
989 |
| 40 |
5562 |
90 |
650 |
| 45 |
6288 |
|
|

| COEFFICIENTS OF UTILIZATION
-Zonal Cavity Method |
| Floor Refl(%)=20 |
| Ceiling Refl(%) |
80 |
70 |
50 |
30 |
| Wall Refl(%) |
70 |
50 |
30 |
10 |
70 |
50 |
30 |
10 |
50 |
30 |
10 |
50 |
30 |
10 |
| RCR |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
89 |
84 |
80 |
77 |
86 |
82 |
78 |
75 |
78 |
75 |
72 |
74 |
72 |
69 |
| 2 |
80 |
73 |
66 |
61 |
77 |
71 |
65 |
60 |
67 |
62 |
58 |
64 |
60 |
57 |
| 3 |
72 |
63 |
55 |
49 |
70 |
61 |
54 |
49 |
58 |
52 |
47 |
55 |
50 |
46 |
| 4 |
65 |
55 |
47 |
41 |
63 |
53 |
46 |
40 |
51 |
44 |
39 |
48 |
43 |
39 |
| 5 |
59 |
48 |
40 |
34 |
57 |
46 |
39 |
33 |
44 |
38 |
33 |
42 |
36 |
32 |
| 6 |
54 |
42 |
33 |
28 |
52 |
41 |
33 |
27 |
39 |
32 |
27 |
37 |
31 |
26 |
| 7 |
49 |
36 |
28 |
23 |
47 |
35 |
28 |
22 |
34 |
27 |
22 |
32 |
26 |
22 |
| 8 |
45 |
32 |
25 |
19 |
43 |
32 |
24 |
19 |
30 |
23 |
19 |
29 |
23 |
18 |
| 9 |
42 |
29 |
22 |
17 |
40 |
29 |
22 |
17 |
28 |
21 |
16 |
26 |
20 |
16 |
| 10 |
39 |
26 |
19 |
14 |
37 |
26 |
19 |
14 |
25 |
18 |
14 |
24 |
18 |
14 |
| RCR = 5 * H * (Room Length +
Room Width)
-----------------------------------------
(Room Length * Room Width) |
|