Lightolier Coefficients Of Utilization, Calculite Incandescent Surface Cylinder 7018AO, Type

Calculite® Incandescent Surface Cylinder 7018AO

Page 2 of 2

	80							Clear Alzak with 150W A21
								2880 Lumens Per Lamp
FOOTCANDLES	70							RCR = 1 (60' x 60' x 8.5' room)
	60							RCR = 5 (12' x 12' x 8.5' room)
								RCR = 10(6' x 6' x 8.5' room)
	50							Room Surface Reflectances:
								80% Ceiling; 50% Walls; 20% Floor
	40
INITIAL	30
	20
	10
		20		40		60	80	100	120	140	160	180
					AREA PER FIXTURE IN SQUARE FEET
	3	4	5	6	7	8	9	10	11	12	13	14
			CENTER TO CENTER DISTANCE OF FIXTURES IN FEET

Use quick calculator chart to determine spacing of luminaires for desired level of illumination.

Conversion Factors:

100W A21, F.C. X 0.6

Spacing Ratio = 1.1

150W A21
90	CANDLEPOWER SUMMARY
	DEG	CP	ZONAL FLUX
	0	1319	0
	5	1266	120
300	15	1080	306
60	25	1130	523
	35	588	369
600	45	421	326
	55	123	110
	65	6	6
900	75	2	2
	85	0	0
	90	0	0
30
1200		ZONAL SUMMARY

6” Aperture A Lamp / BR30 / PAR38

	80				Clear Alzak with 100W PAR38 FL
					1400 Lumens Per Lamp
FOOTCANDLES	70				RCR = 1 (60' x 60' x 8.5' room)
	60				RCR = 5 (12' x 12' x 8.5' room)
					RCR = 10 (6' x 6' x 8.5' room)
	50				Room Surface Reflectances:
					80% Ceiling; 50% Walls; 20% Floor
INITIAL	40
	20
	30
	10
			20	40		60	80	100	120
				AREA PER FIXTURE IN SQUARE FEET
	3	4	5	6	7	8	9	10	11

CENTER TO CENTER DISTANCE OF FIXTURES IN FEET

Use quick calculator chart to determine spacing of luminaires for desired level of illumination.

Conversion Factors:

PAR38 FL: 100W(IR), F.C. X 1.5; 120W, F.C. X 1.4; 90W, F.C. X 0. 70W/60W(IR), F.C. X 0.8

BR30 FL: 85W, F.C. X 0.6 (S.R.=0.9); 75W, F.C. X 0.5 (S.R.=0.9);

Spacing Ratio = 0.4
150W A21	CANDLEPOWER SUMMARY
	DEG	CP	ZONAL FLUX
90	0	4932
	5	4382	404
	10	3249
	15	1805	541
400	20	777
	25	373	196
60
	30	173
	35	72	57
800	40	45
	45	38	30
	50	34
	55	29	20
1200	60	0
	65	0	0
	70	0
30	75	0	0
	80	0
1600	85	0	0
	90	0

	ZONE	LUMENS	LAMP	FIXT
ITL, Inc. report No. 21590	0-30	949	32.9	53.8
Date: 2-9-77	0-40	1318	45.8	74.8
Efficiency: 61.2%	0-60	1754	60.9	99.5
	0-90	1763	61.2	100.0
	90-180	0.0	0.0	0.0
	0-180	1763	61.2	100.0

Tested According to IES proce- dures. Test distance exceeds five times the greatest luminous open- ing of Luminaire.

Certified test report No. 0847FR Computed by LSI program

Efficiency = 89.3%

	ZONAL SUMMARY
ZONE	LUMENS	LAMP	FIXT
0-30	1141	81.56	91.37
0-40	1198	85.64	95.94
0-60	1249	89.25	99.99
0-90	1249	89.26	100.00
40-90	50	3.63	4.06
60-90	0	.01	.01
90-180	0	.00	.00
0-180	1249	89.26	100.00

COEFFICIENTS OF UTILIZATION

% EFFECTIVE CEILING CAVITY REFLECTANCE

			80				70			50			30			10		0
		50	30	10				% WALL REFLECTANCE							50	30	10	0
						50	30	10	50	30	10	50	30	10
	1	.68	.66	.65	.66		.65	.64	.64	.63	.62	.62	.61	.60	.59	.59	.58	.57
RATIO	2	.63	.61	.58	.62		.60	.58	.60	.58	.57	.58	.57	.55	.56	.55	.54	.53
	3	.59	.56	.53	.58		.55	.53	.56	.54	.52	.55	.53	.51	.53	.52	.50	.49
	4	.55	.51	.49	.54		.51	.48	.53	.50	.48	.51	.49	.47	.50	.48	.47	.46
CAVITY
	5	.51	.47	.44	.50		.47	.44	.49	.46	.44	.48	.45	.43	.47	.45	.43	.42
	6	.47	.43	.41	.47		.43	.41	.46	.43	.40	.45	.42	.40	.44	.42	.40	.39
ROOM	7	.44	.40	.37	.43		.40	.37	.42	.39	.37	.42	.39	.37	.41	.38	.36	.35
	8	.41	.37	.34	.40		.36	.34	.39	.36	.34	.39	.36	.34	.38	.35	.33	.33
	9	.37	.34	.31	.37		.33	.31	.37	.33	.31	.36	.33	.31	.35	.33	.31	.30
	10	.35	.31	.28	.35		.31	.28	.34	.31	.28	.34	.30	.28	.33	.30	.28	.27

20% FLOOR CAVITY REFLECTANCE

								COEFFICIENTS OF UTILIZATION
							% EFFECTIVE CEILING CAVITY REFLECTANCE
					80				70			50			30			10		0
				50	30	10				% WALL REFLECTANCE							50	30	10	0
								50	30	10	50	30	10	50	30	10
	1			1.01	1.00	.99	1.00		.98	.97	.96	.95	.94	.93	.92	.91	.90	.89	.89	.87
RATIO	2			.97	.95	.93	.96		.94	.92	.93	.92	.90	.91	.89	88	.88	.87	.86	.85
	3			.94	.91	.89	.93		.90	.88	.91	89	.87	.89	.87	86	.87	.86	.85	.84
CAVITY	4			.91	.88	.86	.90		.88	.85	.89	.86	.84	.87	.85	.83	.85	.84	.83	.82
	6			.86	.83	.81	.85		.82	.80	.84	.82	.80	.83	.81	.79	.82	.80	.79	.78
ROOM	5			.88	.85	.83	.87		.84	.82	.86	.84	.82	.85	.83	.81	.84	.82	.80	.79
	7			. 83	.80	.78	.83		.80	.78	.82	.79	.78	.81	.79	.77	.80	.78	.77	.76
	8			.81	.78	.76	.81		.78	.76	.80	.77	.76	.79	.77	.75	.79	.77	.75	.74
	9			.79	.76	.74	.79		.76	.74	.78	.76	.74	.78	.75	.73	.77	.75	.76	.73
	10			.77	.75	.72	.77		.75	.72	.77	74.	72	.76	.74	.72	.76	.73	.72	.71
									20% FLOOR CAVITY REFLECTANCE
		Conversion Factor: 45W TO 120W PAR 38 FL, C.U. X 1.0. 65W TO 85W BR30 FL, C.U. X 0.85
			Job Information										Type:
		Lightolier a Genlyte Thomas Company																www.lightolier.com
		631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710
		We reserve the right to change details of design, materials and finish.
		© 2004 Genlyte Thomas Group LLC (Lightolier Division) • B0704