SOLVED: LIGHTING DESIGN Lumen Method CalculationNAME: MATRIC NO:TUTORIALQuestion:A classroom with an area of 10m by 6m by 4m in height requires a service illuminance of 530 lux on the tables, which are set 1m above the floor. The 65W tubular fluorescent lamps chosen have a luminous efficacy of 80lm/W. They are to be mounted on the ceiling in luminaires which have DLOR of 50%. The room reflectances are 0.7 for the ceiling and 0.5 for the walls. 0.8 is the assumed light loss factor. Use the lumen

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