ALP LIghting (ALP Lighting & Ceiling Products, Inc.)

Para-Lite 5

HIGH EFFICIENCY LOW BRIGHTNESS, SHALLOW DEPTH DESIGN

Specifications

Parabolic Louvers shall be Para-Lite 5 as manufactured by A.L.P. Lighting & Ceiling Products, Inc., and shall be one piece injection molded of polystyrene or acrylic with all parabolic surfaces prepared with a primary undercoat, highly specular vacuum metalized finish. Nominal cell dimensions shall be 3/4" x 3/4" x 3/8" high and shall provide 28° shielding with a louver efficiency of not less than 70%. This louver has a VCP index rating of .88 (specular silver finish) and a .75 coefficient of utilization for a RCR of 1.

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 color designation use B for black, W for white. For specular finish color designation should follow SP (i.e., SPG for gold, SPS for 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	84	84	84	84	82	82	82	82	78	78	78	75	75	75	72	72	72	70
1	79	76	74	72	77	75	73	71	72	70	69	69	68	67	67	66	65	63
2	74	70	66	63	72	68	65	63	66	63	6	64	62	60	62	60	59	57
3	69	64	59	56	68	63	59	56	61	57	55	59	56	54	57	55	53	52
4	64	58	53	49	63	57	52	49	55	51	48	54	50	48	52	49	47	46
5	60	52	47	43	58	52	47	43	50	46	43	49	45	42	48	44	42	41
6	55	47	42	38	54	47	42	38	45	41	38	44	40	37	43	40	37	36
7	51	43	37	33	50	42	37	33	41	36	33	40	36	33	39	35	33	31
8	47	38	33	29	46	38	33	29	37	32	29	36	32	29	35	32	29	27
9	43	35	29	26	43	34	29	26	34	29	26	33	29	26	32	28	25	24
10	39	30	25	21	38	30	25	21	29	25	21	29	24	21	28	24	21	20

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	90	84	78	85	89	81	73	81
20	30	93	87	82	80	92	85	78	74
20	40	74	89	86	82	94	88	82	78
20	60	96	91	88	85	95	90	85	82
30	20	93	87	79	82	92	85	75	79
30	30	95	90	83	78	94	89	80	74
30	40	97	92	86	81	96	91	84	78
30	60	98	94	88	84	97	92	87	81
30	80	98	95	90	86	98	93	89	84
40	20	95	90	82	82	94	88	79	80
40	30	97	92	85	79	96	91	83	76
40	40	98	94	98	81	97	93	86	79
40	60	99	95	90	84	98	94	89	82
40	80	99	96	92	87	99	95	91	85
40	100	100	97	93	88	99	96	92	87
60	30	98	94	87	81	97	93	85	79
60	40	99	96	90	84	98	95	89	82
60	60	99	97	92	86	99	96	91	85
60	80	100	97	93	88	99	96	92	87
60	100	100	98	95	90	99	97	93	88
100	40	100	97	93	87	99	96	92	86
100	60	100	98	95	90	100	97	93	88
100	80	100	98	96	91	100	98	95	90
100	100	100	99	97	93	100	98	96	91

TS: TECHNICAL SUPPORT

Lighting Research Laboratories, Inc.

Test Report No. LRL 397-3H, Date 3/5/97.

Description: Commercially Available 2' x 4' Troffer

2/32W T8 Lamps, 3/8" deep Parabolic Specular Silver Louver.

Luminary Watts = 61.0,

Catalog Number: Louver PL5 24 SPS

Lamp Type: F32T8/TL80, Lumens: 3050, Number of Lamps: 2

* Other testing results available upon request.

Total Luminaire Efficiency:		70.2%
Plane:	0°	90°
Spacing Criteria:	1.3	1.4
Shielding Angles:	28	28

CEILING STYLE

CATALOG NO.	DESCRIPTION	DIMENSION
PL5/2 14SPS	SPECULAR SILVER	11-3/4" X 47-3/4"
PL5/2 22SPS	SPECULAR SILVER	23-3/4" X 23-3/4"
PL5/2 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. DURABOLIC finish available on Specular Silver only. To order, replace SPS with DSPS. For further finish replace SPS with SPG for Specular Gold* or SSS for Semi-Specular Silver.

*DURABOLIC Finish standard on Specular Gold.

ZONAL LUMEN SUMMARY

ZONE	LUMENS	% LAMP	% FIXT
0-30	1388	22.8	32.4
0-40	2325	38.1	54.3
0-60	4199	68.8	98.1
0-90	4280	70.2	100
90-180	0	0.0	0.0
0-180	4280	70.2	100.0

LUMINANCE DATA IN FOOTLAMBERTS

ANG. IN DEG.	AVG. 0-DEG.	AVG. 45-DEG.	AVG. 90-DEG.
45	2268	2946	3255
55	2223	2867	3306
65	173	523	73
75	0	0	0
85	0	0	0

CANDLE POWER DISTRIBUTION

VER. ANG.	HORIZONTAL ANGLE					ZONAL LUMENS
VER. ANG.	0.0	22.5	45.0	67.5	90.0	ZONAL LUMENS
0.0	1706	1706	1706	1706	1706
5.0	1695	1697	1696	1701	1697	162
15.0	1661	1668	1670	1707	1736	478
25.0	1538	1547	1621	1682	1690	748
35.0	1350	1414	1487	1577	1630	937
45.0	1073	1171	1281	1368	1415	980
55.0	784	890	1011	1108	1166	894
65.0	45	84	136	73	19	81
75.0	0	0	0	0	0	0
85.0	0	0	0	0	0	0
90.0	0	0	0	0	0

ALP Lighting - Page 13