Lightolier DPB2S12LS232 Options & Accessories, Specifications Continued, Dp B, Photometry

Section 2A/Folio G50-80 Rev. B

DEEPCELL SURFACE DPB2S12LS232

Page 2 of 2 2' x 4' SURFACE FLUORESCENT, 3" TYPE, 12 CELL PARABOLIC LOUVER, 2 LAMP T8 OR T12

PHOTOMETRY

MODEL NO. DPB2S12LS232120SO coefficients of utilization — zonal cavity method

	RF		20			20			20
	RC		80			50			30
	RW	70	50	30	50	30	10	50	30	10
	1	83	80	78	76	74	72	73	71	70
ratio	2	77	72	68	68	65	62	66	63	61
	3	71	64	59	61	57	54	59	56	53
cavity	4	65	57	51	55	50	46	53	49	46
	5	60	51	45	48	43	39	47	42	39
room	6	55	45	39	43	38	34	42	37	34
	7	50	40	34	39	33	29	37	33	29
	8	46	36	29	34	29	25	33	28	25
	9	42	32	25	30	25	21	30	25	21
	10	39	29	23	27	22	18	27	22	18

visual comfort probability

room size				ceiling height					ceiling height
W	L		8.5	10.0	13.0	16.0		8.5	10.0	13.0	16.0
20	20		77	74	75	85		73	70	72	75
20	30		80	77	72	75		77	73	68	71
20	40		83	80	76	75		80	76	71	69
20	60		83	81	79	78		82	79	75	72
30	20		81	76	75	81		78	74	73	74
30	30		83	79	73	72		81	76	69	70
30	40		85	81	76	72		84	79	72	67
30	60		85	81	79	75		85	81	75	71
30	80	lengthwise	85	82	81	77	crosswise	85	81	77	73
40	40		86	84	78	72		84	81	74	68
40	20		81	80	77	81		78	77	76	75
40	30	luminaries	84	82	75	72	luminaries	82	79	72	70
40	60		86	84	80	75		85	83	77	71
40	80		86	84	82	77		85	83	79	74
40	100		86	84	82	77		85	83	79	74
60	30		84	83	77	74		82	80	74	72
60	40		86	85	80	74		84	82	76	70
60	60		86	85	82	76		85	84	79	73
60	80		86	85	83	78		85	84	81	75
60	100		86	85	83	78		85	84	81	75
100	40		86	85	80	76		84	82	77	72
100	60		86	85	82	78		85	84	79	75
100	80		86	85	83	80		86	84	81	78
100	100		86	85	83	81		86	84	81	78

ORDERING INFORMATION Explanation of Catalog Number. Example: DPB2S12LS232120SOGLR

DP B 2

DEEPCELLFIXTURE

PARABOLIC:WIDTH Pre-anodized

Aluminum

Louver

BODY STYLE:

Surface Box

S	12			S
	NUMBER OF			BALLAST
	CELLS			COVER
CEILING			LOUVER FINISH*:
TYPE:	L= Low-iridescence semi-specular
S=Surface		(standard)
	P= Low-iridescence specular
	W=White Paint

2

LAMP	VOLTAGE:		OPTIONS:
QUANTITY:	120 or 277	Add appropriate suffix
(By Others)		to catalog no., ie: (GLR)
2=2 Lamp	BALLAST TYPE:
	1-2 Lamp Mag. T12	LE
		<20THD	<10THD
LAMP/
	1-2 Lamp Elec. T8	SO*	HI*
FIXTURE LENGTH:	LOL Dimming T8	PS	–
32=T88
	*Instant Start Standard
34=T12
(Nominal 48")	Other dimming options. Consult factory.

*Consult factory for availability of louver finishes.

OPTIONS & ACCESSORIES

STEM AND CANOPY SETS: Suspends fixture 6", 12", 18" or 24" from surface.

(Four per fixture is recommended.) Catalog Number: ASC6 CSP (6"), ASC12 CSP (12"), ASC18 CSP (18"), ASC24 CSP (24")

FUSING: Internal fast-blow fusing.

SUFFIX: GLR.

Internal slow-blow fusing.

SUFFIX: GMF.

RADIO INTERFERENCE FILTER: 120 or 277 volt, 50 or 60 Hz. One per fixture

is standard. SUFFIX: RF.ELECTRICAL/WIRING OPTIONS: Consult factory.

SPECIFICATIONS:

PERFORMANCE: In an installation of 2 lamp 32W luminaires in a room cavity ratio of 1, with a reflectance of 80% ceiling, 50% wall, 20% floor, the C.U. shall not be less than .80. To prevent glare the VCP shall be not less than 85 either lengthwise or cross wise (at 100fc level) and the average brightness at 65° shall not exceed 476 footlamberts. To control veiling reflections, luminaire output in the 30°- 90° zone shall be not less than 73%.

MATERIALS: Chassis parts are die-formed 20 gauge cold rolled steel, stud- welded for rigidity with all seams finished smooth.

SPECIFICATIONS (CONTINUED):

LOUVER: pre-anodized aluminum (Coilzak® or equal).

STANDARD FINISH: Louver—low iridescence, semi-specularpre-anodized vertical grain reflector sheet. Cavity—white baked acrylic enamel minimum 86% reflectance. Phosphate undercoating. Chassis exterior—white baked acrylic enamel.

ELECTRICAL: Thermally protected class “P” ballast C.B.M. approved, non PCB. If K.O. is within 3" of ballast, use wire suitable for at least 90°.

LABELS: I.B.E.W./UL and C-UL.

Job Information	Type:
Lightolier a Genlyte Thomas Company	www.lightolier.com

Technical Information: (978) 657-7600 • Fax (978) 658-0595

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.

© 2002 Genlyte Thomas Group LLC (Lightolier Division) A0902