13.Lighting calculation? What is light loss factor ? What is utilisation factor ? Formula ? Minimum lux required in substation ?

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Explanation of lighting calculation, light loss factor, utilisation factor, and minimum lux required in substation.

Lighting calculation involves determining the amount of light required in a space.
Light loss factor is the reduction in light output due to factors such as dirt, dust, and aging of lamps.
Utilisation factor is the ratio of light received by a surface to the total light output of the lamps.
Formula for lighting calculation: Total light output = Area x Required lux level x Utilisation factor / Light loss factor.
Minimum lux required in substation depends on the specific tasks being performed in the area.
For example, a substation control room may require a minimum of 300 lux, while a storage area may only require 50 lux.

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