Problem 4: Given a classroom 6.71m by 7.62m to be lighted to an average maintained lux level of 807 lux. Find the number of four- lamp 48in RS fixtures required. Assume CU = 0.38, MF = 0.75. Example 5: An entire office floor is to be lighted to an average maintained illumination of 538 lux. The floor measuring 97.56m x 45.73m and is divided into bays measuring 12.2m x 7.62m. using two-lamp recessed troffers with 40W RS lamps, find the number of fixtures required. Assume an economy grade fixture with a low CU of 0.35 and MF or 0.7.

Delmar's Standard Textbook Of Electricity
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ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter8: Combination Circuits
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Problem 4: Given a classroom 6.71m by 7.62m to be lighted to an average maintained
lux level of 807 lux. Find the number of four- lamp 48in RS fixtures required. Assume CU =
0.38, MF = 0.75.
Example 5: An entire office floor is to be lighted to an average maintained illumination
of 538 lux. The floor measuring 97.56m x 45.73m and is divided into bays measuring 12.2m
x 7.62m. using two-lamp recessed troffers with 40W RS lamps, find the number of fixtures
required. Assume an economy grade fixture with a low CU of 0.35 and MF or 0.7.
Transcribed Image Text:Problem 4: Given a classroom 6.71m by 7.62m to be lighted to an average maintained lux level of 807 lux. Find the number of four- lamp 48in RS fixtures required. Assume CU = 0.38, MF = 0.75. Example 5: An entire office floor is to be lighted to an average maintained illumination of 538 lux. The floor measuring 97.56m x 45.73m and is divided into bays measuring 12.2m x 7.62m. using two-lamp recessed troffers with 40W RS lamps, find the number of fixtures required. Assume an economy grade fixture with a low CU of 0.35 and MF or 0.7.
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