Refer to the National Electrical Code® or the working drawings when necessary. Where applicable, responses should be written in complete sentences. For problems 1 and 2, six luminaires, similar to Style E used in the Commercial Building, are to be installed in a room that is 12 ft x 18 ft (~3.7 m x ~5.5 m) with a 9 ft (2.8 m) floor-to-ceiling height. The spacing ratio for the luminaire is 1:0. 1. The maximum distance that the luminaires can be separated and achieve uniform illuminance is ft ( m). For problems 2-5, two luminaires, 8 ft (2.5 m) and 4 ft (1.2 m) in length with dimensions as shown in Figure 15-7, are to be installed in tandem (end to end). The end of the long luminaire is to be 2 ft (600 mm) from the wall. 2. The center of the outlet box should be roughed in at ft ( m) from the wall. 3. The first support should be installed at the wall. ft ( m) from
Refer to the National Electrical Code® or the working drawings when necessary. Where applicable, responses should be written in complete sentences. For problems 1 and 2, six luminaires, similar to Style E used in the Commercial Building, are to be installed in a room that is 12 ft x 18 ft (~3.7 m x ~5.5 m) with a 9 ft (2.8 m) floor-to-ceiling height. The spacing ratio for the luminaire is 1:0. 1. The maximum distance that the luminaires can be separated and achieve uniform illuminance is ft ( m). For problems 2-5, two luminaires, 8 ft (2.5 m) and 4 ft (1.2 m) in length with dimensions as shown in Figure 15-7, are to be installed in tandem (end to end). The end of the long luminaire is to be 2 ft (600 mm) from the wall. 2. The center of the outlet box should be roughed in at ft ( m) from the wall. 3. The first support should be installed at the wall. ft ( m) from
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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
Transcribed Image Text:Figure 15-7
Luminaire shop drawing indicating mounting holes.
4.4' or 8-4
18 in.
4 in.
8 in.
8 in,
5/%e".
4 KO
½" KO
8 in.
4 in.
12 in.

Transcribed Image Text:Refer to the National Electrical Code® or the working drawings when necessary. Where applicable, responses should be written in complete sentences.
For problems 1 and 2, six luminaires, similar to Style E used in the Commercial Building, are to be installed in a room that is 12 ft x 18 ft (~3.7 m x ~5.5 m) with a 9 ft
(2.8 m) floor-to-ceiling height. The spacing ratio for the luminaire is 1:0.
1. The maximum distance that the luminaires can be separated and achieve uniform illuminance is
ft (
m).
For problems 2-5, two luminaires, 8 ft (2.5 m) and 4 ft (1.2 m) in length with dimensions as shown in Figure 15-7, are to be installed in tandem (end to end). The
end of the long luminaire is to be 2 ft (600 mm) from the wall.
2. The center of the outlet box should be roughed in at
ft (
m) from the wall.
3. The first support should be installed at
the wall.
ft (
m) from
4. The second support should be installed at
from the wall.
ft (
m)
5. The final support should be installed at
the wall.
ft (
m) from
Problems 6 and 7 concern the illumination in the Beauty Salon.
6. The minimum loading allowance required for the Beauty Salon illumination in accordance with NEC Table 220.12 is
volt-amperes per square foot (
volt-amperes per
square meter).
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