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Problem 1: A room is to be lighted with direct lighting fluorescent troffers with a S/MH of 1.2. Ceiling height is 2.44m. What is the maximum fixture spacing? Problem 2: A warehouse is to be lighted with pendant RLM dome incandescent with an S/MH of 1.3 spacing, because of architectural considerations, must be on a grid of 4.88m x 4.88m. What is the minimum mounting height? Problem 3: A classroom 6.71m by 7.62m is lighted with 12 fluorescent fixtures, each containing 4, F40WW/RS lamps. Calculate the initial and maintained illumination in lux. Assume a CU of 0.38 and a MF of 0.75.

Problem 1: A room is to be lighted with direct lighting fluorescent troffers with a S/MH of 1.2. Ceiling height is 2.44m. What is the maximum fixture spacing? Problem 2: A warehouse is to be lighted with pendant RLM dome incandescent with an S/MH of 1.3 spacing, because of architectural considerations, must be on a grid of 4.88m x 4.88m. What is the minimum mounting height? Problem 3: A classroom 6.71m by 7.62m is lighted with 12 fluorescent fixtures, each containing 4, F40WW/RS lamps. Calculate the initial and maintained illumination in lux. Assume a CU of 0.38 and a MF of 0.75.

Power System Analysis and Design (MindTap Course List)
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter7: Symmetrical Faults
Section: Chapter Questions
Problem 7.21MCQ
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Problem 1: A room is to be lighted with direct lighting fluorescent troffers with a S/MH of 1.2. Ceiling height is 2.44m. What is the maximum fixture spacing? Problem 2: A warehouse is to be lighted with pendant RLM dome incandescent with an S/MH of 1.3 spacing, because of architectural considerations, must be on a grid of 4.88m x 4.88m. What is the minimum mounting height? Problem 3: A classroom 6.71m by 7.62m is lighted with 12 fluorescent fixtures, each containing 4, F40WW/RS lamps. Calculate the initial and maintained illumination in lux. Assume a CU of 0.38 and a MF of 0.75.
Transcribed Image Text:Problem 1: A room is to be lighted with direct lighting fluorescent troffers with a S/MH of 1.2. Ceiling height is 2.44m. What is the maximum fixture spacing? Problem 2: A warehouse is to be lighted with pendant RLM dome incandescent with an S/MH of 1.3 spacing, because of architectural considerations, must be on a grid of 4.88m x 4.88m. What is the minimum mounting height? Problem 3: A classroom 6.71m by 7.62m is lighted with 12 fluorescent fixtures, each containing 4, F40WW/RS lamps. Calculate the initial and maintained illumination in lux. Assume a CU of 0.38 and a MF of 0.75.
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