A hall is to be provided with a lighting installation. The hall is 30-m x 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 Lumen/watt 200 10 300 12 500 12.3

A hall is to be provided with a lighting installation. The hall is 30-m x 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 Lumen/watt 200 10 300 12 500 12.3

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter17: Commercial And Industrial Air-conditioning Control Systems

Section: Chapter Questions

Problem 6RQ

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This multiple choice Questions from MEASUREMENTS INSTRUMENTATION course.