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A factory space of 33 m x 13 m is to be illuminated with an average illumination of 72 Im/m² by 200 W lamps. The coefficient of utilization is 0.4 and the depreciation factor is 1.4. Calculate the number of lamps required. The lumen output of a 200-W lamp is 2,7301m. 30 35 45 40

A factory space of 33 m x 13 m is to be illuminated with an average illumination of 72 Im/m² by 200 W lamps. The coefficient of utilization is 0.4 and the depreciation factor is 1.4. Calculate the number of lamps required. The lumen output of a 200-W lamp is 2,7301m. 30 35 45 40

Introductory Circuit Analysis (13th Edition)
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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TOPIC: Power Systems, Power Plants & Illumination

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A factory space of 33 m x 13 m is to be illuminated with an average illumination of 72 Im/m² by 200 W lamps. The coefficient of utilization is 0.4 and the depreciation factor is 1.4. Calculate the number of lamps required. The lumen output of a 200-W lamp is 2,7301m.

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