Terminology and calculations of lot. Mounting hot is often referred to haitch n on paper. Mounting hot is in most interiors may be defined as the vertical distance between the underside of the luminary and the working plan. In some instances, it would be considered the distance between the illuminance of the floor and the underside of the luminary. When you see owl, it refers to room length, when you say W, it obviously refers to room width. l l, f refers to light loss factor, and is a reflection of how much loss of loss is created over space.
And n refers to the number of luminaires used, area of a working plane in square meter is often referred to a in calculations. Working plane is the horizontal vertical or inclined plane at the height above the floor at which the task is being performed. If the working plane is not known, assume it to be the horizontal at point seven meters above the floor, the height of a desk or around point eight five meters for a bench and above the floor to match the corresponding tasks. In planning a general interior lighting scan, the area of the working plane is usually taken as being equal to the total area of the floor. Maintenance luminance is referred to as Lux level. In an interior the maintenance luminous may be defined as the luminance recommended for standard conditions.
It is a measure of current quality of light as a measure of lumens arriving on the working plan which is measured in square meters. Maintenance luminance, is that's referred to as Lux lumens per square meter. amount of light per unit surface area is calculated as unit Lux equals length meters divided by m squared. And it gives us a symbol of a. Lux levels can be understood as the following, very low levels will be under 100 Lux as discussed with 50 being the lowest before you are unable to define spaces, low Lux levels is 100 to 300 Lux average Lux levels for passages and moving between spaces is 300 to 500 Lux And high beam 500 to 750 Lux including task areas and surfaces As stated earlier, a very high Lux level is above 750. And unfortunately we cannot without glare or indirect reflectance perform anything over 1000 Lux with unsatisfactorily illuminating a ruin.
Therefore, natural daylight will far surpass any artificial lighting