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  Ledalite Architectural Products Inc.   In-Cove Asymmetry  

In-Cove Asymmetry - Page 3

   

In-Cove Asymmetry

In-Cove Asymmetry

1 T8 - Indirect


PHOTOMETRY  Provided for mounting position "A" only. Consult factory for other mounting options

OPTICAL SETTING A:

Lower wall brightness plus maximum uniformity on wall

Report# 2100277
Efficiency 73.0%
Peak Candela Value 1135 @ 115º
Peak: Zenith Ratio 2:8:1
Asymmetric Effectiveness* 60.7%

CANDELA DISTRIBUTION

Vert. Angle Horizontal Angle

Zonal Lumens

0 45 90 135 180
0 0 0 0 0 0
5 0 0 0 0 0 0
15 0 0 0 0 0 0
25 0 0 0 0 0 0
35 0 0 0 0 0 0
45 0 0 0 0 0 0
55 0 0 0 0 0 0
65 0 0 0 0 0 0
75 0 0 0 0 0 0
85 0 0 0 0 0 0
90 0 0 0 0 0 0
95 166 155 15 12 8 115
105 754 684 73 56 60 330
115 1135 754 140 58 76 389
125 1036 706 206 67 73 355
135 914 684 265 112 78 310
145 818 674 317 173 128 261
155 735 617 357 239 197 196
165 609 537 385 305 277 120
175 461 441 399 370 356 41
180 400 400 400 400 400

COEFFICIENTS OF UTILIZATION (%)

Ceiling Wall RCR

80

70 50

0

  70 50 30 10 70 50 30 50 30 10 0
0 69 69 69 69 59 59 59 40 40 40 0
1 63 60 57 55 53 51 49 35 34 32 0
2 57 52 48 45 49 45 41 30 28 27 0
3 52 46 41 37 44 39 35 27 24 22 0
4 47 40 35 31 40 34 30 24 21 19 0
5 43 35 30 26 37 30 26 21 18 16 0
6 40 32 26 22 34 27 23 18 16 14 0
7   36 28 23 19 31 24 20 17 14 12
8 34 25 20 17 28 22 17 15 12 10 0
9 31 23 18 14 26 20 15 13 11 9 0

10

29 21 16 13 24 18 14 12 9 8 0
Based on a floor reflectance of

Based on a floor reflectance of 0.2

OPTICAL SETTING B:

Higher wall brightness with maximum efficiency & more backlight

Report# 2100278
Efficiency 79.3%
Peak Candela Value 899 @112.5º
Peak: Zenith Ratio 1:7:1
Asymmetric Effectiveness * 58%

CANDELA DISTRIBUTION

Vert. Angle Horizontal Angle Zonal Lumens
0 45 90 135 180
0 0 0 0 0 0  
5 0 0 0 0 0 0
15 0 0 0 0 0 0
25 0 0 0 0 0 0
35 0 0 0 0 0 0
45 0 0 0 0 0 0
55 0 0 0 0 0 0
65 0 0 0 0 0 0
75 0 0 0 0 0 0
85 0 0 0 0 0 0
90 0 0 0 0 0 0
95 128 144 18 11 10 101
105 672 595 94 47 53 297
115 895 632 178 100 82 358
125 870 652 266 184 153 374
135 834 667 348 273 238 366
145 787 690 416 362 328 328
155 761 695 471 447 415 260
165 708 663 507 521 496 164
175 600 582 529 542 551 54
180 531 531 531 531 531  

COEFFICIENTS OF UTILIZATION (%)

Ceiling Wall RCR 80 70 50 0
  70 50 30 10 70 50 30 50 30 10 0
0 76 76 76 76 64 64 64 44 44 44 0
1 69 65 63 60 58 56 54 38 37 36 0
2 62 57 53 49 53 49 45 33 31 29 0
3 57 50 45 40 48 43 38 29 27 24 0
4 52 44 38 34 44 38 33 26 23 20 0
5 47 39 33 29 40 33 28 23 20 17 0
6 43 34 29 24 37 30 25 20 17 15 0
7 40 31 25 21 34 26 22 18 15 13 0
8 37 28 22 18 31 24 19 16 13 11 0
9 34 25 19 16 29 21 17 15 12 10 0
10 31 23 17 14 27 19 15 13 10 8 0
Based on a floor reflectance of 0.2

Based on a floor reflectance of 0.2

SPECIFICATIONS

Housing:

Die-formed 24 ga. metal painted white

Optical system:

Constructed of highly specular aluminum and highly reflective 24 ga. metal to produce an indirect distribution.

Joints:

Integral with each module. One screw required per joint (provided by others) to attach to structure.

Electrical:

All luminaire sections shall be factory pre-wired to section ends. Optional quick connect plugs are available.

Ballast:

Electronic rapid start, instant start or dimming.

Approvals:

Certified to UL & CSA standards.

*Asymmetric effectiveness refers to the percentage of lamp lumens distributed on the room side of the luminaire, above 90 degrees.


©1997 Ledalite Architectural Products Inc. 9087A - 198th Street, Langley, B.C., Canada, V1M 3B1
Phone: 604-888-6811 Toll Free Fax: 1-800-665-LEDA (5332) Email: info@ledalite.com  WWW:
http://www.ledalite.com

Note: Specifications subject to change without notice.



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