6. A hall is to be provided with a lighting installation. The hall is 30- mx 20 m x 8 m (high). The mounting height is 5 m and the required level of illumination is 110 lux. Using metal filament lamps, determine (a) the rating of suitable lamp and (b) number of single lamp luminaries and draw their lighting layout. Assume maintenance factor = 0.8, utilization coefficient = 0.6 and space/height ratio = 1. Watt: 300 500 200 10 12 12.3 Lumen/Watt: [(a) 500 W, (b) 24 lamps,]

6. A hall is to be provided with a lighting installation. The hall is 30- mx 20 m x 8 m (high). The mounting height is 5 m and the required level of illumination is 110 lux. Using metal filament lamps, determine (a) the rating of suitable lamp and (b) number of single lamp luminaries and draw their lighting layout. Assume maintenance factor = 0.8, utilization coefficient = 0.6 and space/height ratio = 1. Watt: 300 500 200 10 12 12.3 Lumen/Watt: [(a) 500 W, (b) 24 lamps,]

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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