San Diego Plastics
2220 McKinley Avenue
National City  CA  91950
800/925-4855   619/477-4855   FAX 619/477-4874

Para-Lite 3
HIGH EFFICIENCY DOUBLE WEDGE DESIGN

Specifications
Parabolic Louvers shall be Para-Lite 3 as manufactured by A.L.P. Lighting Components, Inc., and shall be one piece injection molded with a double wedge design of polystyrene or acrylic with all parabolic surfaces prepared with a primary undercoat, highly specular vacuum metalized finish. Cell dimensions shall be 3/4" x 3/4" x 1/2" and shall provide 35° shielding with a louver efficiency of not less than 66%. This louver has a VCP index rating of .93 (specular silver finish). Available in nominal ceiling panel sizes of 1' x 4', 2' x 2' and 2' x 4' or flanged panels with I.D. of 19-11/16 x 43-1/2", O.D. of 22-1/2" x 46-1/2".


Lighted Ceilings - Louver panels are designed to fit any standard 1' x 4', 2' x 2' or 2' x 4' tee bar grid system.

Special Sizes - Special sizes are available, contact A.L.P.

Flanged Style - Panels will sometimes require additional cutting for proper installation.

Lighting Fixtures - Louver panels can also be specified with the Avoida-Notch™ optional frame - to specify add suffix-AN50 to the base catalog number. For specular finish use SP. The color designation should follow SP (i.e., SPS for specular silver).


ZONAL CAVITY COEFFICIENTS OF UTILIZATION

Ceiling Wall RCR

EFFECTIVE FLOOR CAVITY REFLECTANCE = 20

80 70 50 30 10 00
70 50 30 10 70 50 30 10 50 30 10 50 30 10 50 30 10 00
0 79 79 79 79 77 77 77 77 74 74 74 71 71 71 68 68 68 66
1 74 72 70 68 73 71 69 67 68 66 65 65 64 63 63 62 61 60
2 70 66 63 60 68 35 62 59 63 60 58 61 59 57 59 57 56 54
3 65 60 57 53 64 59 56 53 58 55 52 56 53 51 54 52 50 49
4 61 55 50 47 60 54 50 47 52 49 46 51 48 45 50 47 45 44
5 57 50 45 41 55 49 45 41 48 44 41 47 43 40 45 42 40 39
6 52 45 40 37 51 45 40 37 43 39 36 42 39 36 41 38 36 35
7 48 41 36 32 47 40 35 32 39 35 32 38 35 32 38 34 31 30
8 45 37 32 28 44 36 32 28 36 31 28 35 31 28 34 30 28 27
9 41 33 28 25 41 33 28 25 32 28 25 32 28 25 31 27 25 24
10 37 29 24 21 37 29 24 21 28 24 21 27 23 21 27 23 20 19

VISUAL COMFORT PROBABILITY TABLE
100 FC Work Plane Illumination Work Plane FC = 100

  LUMINARIES LENGTHWISE LUMINARIES CROSSWISE
ROOM DIM MOUNTING HEIGHT
W L 8.5 10 13 16 8.5 10 13 16
20 20 91 84 79 86 91 85 77 83
20 30 93 88 82 80 94 88 82 78
20 40 95 90 85 82 95 90 86 82
20 60 96 92 88 85 96 92 88 85
30 20 94 88 81 83 94 88 79 81
30 30 95 91 83 79 96 91 83 78
30 40 97 93 86 81 97 93 87 81
30 60 98 94 89 84 98 94 89 84
30 80 98 95 90 86 98 95 91 86
40 20 95 91 84 84 96 91 83 82
40 30 97 93 86 80 97 93 86 79
40 40 98 95 89 82 98 95 89 82
40 60 99 96 91 85 99 96 91 85
40 80 99 97 92 87 99 97 93 87
40 100 100 97 93 89 100 97 94 89
60 30 98 95 88 82 98 95 88 82
60 40 99 96 91 84 99 96 91 84
60 60 99 97 92 87 100 97 93 87
60 80 100 98 94 89 100 98 94 89
60 100 100 98 95 90 100 98 95 90
100 40 100 98 93 88 100 98 93 88
100 60 100 98 95 90 100 98 95 90
100 80 100 99 96 92 100 99 96 92
100 100 100 99 97 93 100 99 97 93

TS: TECHNICAL SUPPORT
Lighting Research Laboratories, Inc.
Test Report No. LRL 397-3L, Date 3/5/97.
Description: Commercially Available 2' x 4' Troffer
2/32W T8 Lamps, 1/2" deep Parabolic Specular Silver Louver.
Luminary Watts = 60.2,
Catalog Number: Louver PL3 24 SPS
Lamp Type: F32T8/TL80, Lumens: 3050, Number of Lamps: 2

* Other testing results available upon request.

Total Luminaire Efficiency: 66.3%
Plane: 90°
Spacing Criteria: 1.3 1.4
Shielding Angles: 35 35

CEILING STYLE

CATALOG NO. DESCRIPTION DIMENSION
PL3/2 14SPS SPECULAR SILVER 11-3/4" X 47-3/4"
PL3/2 22SPS SPECULAR SILVER 23-3/4" X 23-3/4"
PL3/2 24SPS SPECULAR SILVER 23-3/4" X 47-3/4"

FLANGE FIXTURE STYLE (2' X 4' ONLY)

CATALOGE NO. DESCRIPTION INSIDE DIMENSION OUTSIDE DIMENSION
PL3/1 24SPS SPECULAR SILVER 19-11/16" x 43-1/2" 22-1/2" X 46-1/2"

Products listed above are polystyrene. For Acrylic Louvers, add A after catalog number. Also available in Semi-Specular Silver. To order, replace SPS with SSS. DURABOLIC Finish available on Specular Silver. To order, replace SPS with DSPS.


ZONAL LUMEN SUMMARY

ZONE LUMENS % LAMP % FIXT
0-30 1348 22.1 33.3
0-40 2256 37.0 55.8
0-60 3960 64.9 98.0
0-90 4043 66.3 100.0
90-180 0 0.0 0.0
0-180 4043 66.3 100.0

LUMINANCE DATA IN FOOTLAMBERTS

ANG.
IN DEG.
AVG.
0-DEG.
AVG.
45-DEG.
AVG.
90-DEG.
45 2417 2815 3126
55 2132 2561 2246
65 335 412 77
75 0 0 0
85 0 0 0

CANDLE POWER DISTRIBUTION

VER. ANG. HORIZONTAL ANGLE ZONAL
LUMENS
0.0 22.5 45.0 67.5 90.0
0.0 1652 1652 1652 1652 1652  
5.0 1643 1645 1645 1650 1644 157
15.0 1609 1616 1618 1654 1683 463
25.0 1491 1501 1574 1642 1649 728
35.0 1309 1371 1444 1527 1574 908
45.0 1051 1136 1224 1317 1359 945
55.0 752 816 903 894 792 759
65.0 87 107 107 64 20 82
75.0 0 0 0 0 0 0
85.0 0 0 0 0 0 0
90.0 0 0 0 0 0  


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