Lightolier SK Performance, End Set, Candlepower Curve, Coefficients of Utilization, Distribution

Lighting Systems Silhouette® SK

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Performance

CANDLEPOWER CURVE

145˚ 155˚

165˚

175˚

175˚

165˚

155˚

145˚

135

600

125

450

180˚

90˚

115

300

0˚

105

150

95

90

85

75

150

65

55

45

35˚ 25˚ 15˚

5˚

0˚ 5˚

15˚

25˚

35˚

REPORT NO: LRL 299-1L

CAT NO: SK14I281WH

LAMPS: 1 F28T5

LUMENS: 2900

EFFICIENCY: 83.6%

Quick Calculators

0'

DISTANCE FROM WALL

5'

1'

2'

3'

4'

FIXTURE

1'6"

126fc

86fc

48fc

26fc

15fc

6"

141fc

ABOVE

147fc

0'

DISTANCE

80% ceiling, 50% walls, 10' ceiling

135˚

125˚

115˚

105˚

95˚

90˚

85˚

75˚

65˚

55˚

45˚

FIXTURE	2'6"
	1'6"
ABOVE
	6"
DISTANCE
	0'

			CANDLEPOWER
	ZONE		0		22	45	67	90
	DEG.			CANDELAS
	180		525		525	525	525	525
	175		534		536	532	531	525
	165		596		564	541	530	515
	155		720		706	593	508	489
	145		504		533	636	491	435
	135		594		520	413	489	362
	125		506		568	461	373	294
	115		515		464	365	223	204
	105		493		496	377	199	121
	95		146		140	144	108	29
	90		36		31	18	8	6
	85		42		36	20	10	4
	75		65		49	39	15	8
	65		74		60	49	26	12
	55		82		78	65	45	26
	45		87		82	69	54	34
	35		83		82	74	61	43
	25		85		83	75	66	53
	15		78		78	72	65	57
	5		66		66	65	62	59
	0		59		59	59	59	59
	Calculations are for 28 watt T5 lamps,
	for 54 watt T5 lamps multiply by 1.7
0'		DISTANCE FROM WALL						5'
	1'		2'			3'	4'
	97fc		78fc		54fc		35fc	23fc

101fc

89fc

120fc

80% ceiling, 50% walls, 11' ceiling

COEFFICIENTS OF UTILIZATION

% EFFECTIVE CEILING CAVITY REFLECTANCE

			80			70			50
				WALL REFLECTANCE
		70	50	30	70	50	30	50	30	10
	0	81	81	81	71	71	71	51	51	51
RATIO	1	74	70	67	64	61	59	44	42	41
	2	67	61	57	58	53	49	38	36	34
CAVITY	3	61	54	48	53	47	42	34	31	28
	4	56	47	41	48	41	36	30	26	24
	5	51	42	35	44	36	31	26	23	20
ROOM	6	47	37	31	40	32	27	23	20	17
	8	40	30	24	34	26	21	19	15	13
	7	43	33	27	37	29	24	21	17	15
	9	37	27	21	32	24	19	17	14	11
	10	34	25	19	29	21	17	16	12	10

	20% FLOOR CAVITY REFLECTANCE
	DISTRIBUTION
Zone	Lumens	% Lamp	% Luminaire
0-90	214	7.4	8.8
90-180	2212	76.3	91.2
0-180	2426	83.6	100.0

	0'			DISTANCE FROM WALL				5'
			1'		2'	3'	4'
FIXTURE	3'6"
		80 fc	78fc		68fc	54fc	38fc	28fc
	2'6"
ABOVE		65fc
	1'6"
DISTANCE		68fc
	6"
		107fc
	0'
				80% ceiling, 50% walls, 12' ceiling

Fixture Lengths & Mounting Locations

8” (20.32cm)	8” (20.32cm)		8” (20.32cm)	16” (40.64cm)		8” (20.32cm)
			32” (81.28cm)
32” (81.28cm)				32” (81.28cm)
4-FOOT JOINER		8-FOOT JOINER
48”			96”
Sample Run
8-1/16” (20.48cm)	16” (40.64cm)	16” (40.64cm)	16” (40.64cm)		16” (40.64cm)		8-1/16” (20.48cm)
32” (81.28cm)	32” (81.28cm)	32” (81.28cm)	32” (81.28cm)		32”(81.28cm)
8-FOOT JOINER		4-FOOT JOINER		8-FOOT JOINER

20’ 1/8” (609.92cm)

End Set

End Set

SEWHLC (white)

SEALLC (aluminum)

Job Information Type:


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