Industrial lighting quick estimation method
If time permits and computer lighting software is available, indoor lighting calculations and lighting arrangements can be completed. When you don’t have a computer at hand and time is urgent, you can use the following quick estimation method.
The quick estimation method uses the following assumptions as calculation premise:
1. The maintenance lumen value illuminated on an industrial flat surface is half of the lumens of the new light source in the new lamp:
2. The size of the room being illuminated is normal, the reflection coefficient of the room surface is normal, and the dust in the room is normal (a normal-sized room means that the height MH from the working plane to the bottom of the lamp is less than the minimum size of the room half):
3. Use only one type of luminaire for a given room (when the height MH from the working plane to the bottom of the luminaire is greater than 6 meters, high-hanging luminaires can be used, and when MH is less than 6 meters, low-hanging luminaires can be used).
Calculation process:
1. Find the illuminance value A of the application site from the Illuminating Engineering Society of North America IES industrial lighting recommended value table;
2. Obtain the lumen value B of the light source from the light source supplier:
3. Multiply the rated light source lumen value B by 0.5 to get the light source maintenance lumen C:
6. When using high-hanging lamps, the distance S between lamps is greater than the hanging height: or when using low-hanging lamps, the distance S between lamps is greater than 1.5 times the hanging height: then the distance S between lamps is too large, and a light source with a lower power level should be selected. Repeat The third step is until the lamp interval S meets the requirements:
7. Choose an appropriate high-hanging or low-hanging light fixture.
Industrial lighting lighting principles
The lamps should be expanded from the middle to the border. When the rows or columns of lamps are an odd number, there should be one row or column of lamps located on the center line. When the rows or columns of the lamps are an even number, the distance between the lamps closest to the center line and the center line It should be half the distance S between lamps. The distance between the lamp closest to the wall and the wall is less than or equal to 0.5S, as shown in the figure.
