Industrial Lighting

Assuming you want to purchase industrial lighting for your plant, ask your industrial lighting supplier to figure the requirements.

If you are the industrial lighting supplier, good luck.

The inverse square law will be vastly helpful in setting up the calculation for illumination intensity. Depending on my mood at the time, I would use a calculator, spreadsheet or mathematics software to do the calculation. Slide rules are just to tedious.

_{(Just feeling a little snarky I guess.)}

Good Answer Lyn Lynch. When I saw the question I just absolutely had to check the comments. Back in ancient times when I had a project involving lighting the dealers/suppliers were always more than willing to give me a hand in calculating the needs, thus their sales, for the project.

BTW. I'm in Kabul. Your folks still in the area? You can answer me on the private side as I'll be checking back in later today.

Number of fixtures depends upon Average lux level required. Generally lux level adopted is 300 lux for control room, 200 lux for switchgear room, 70 lux for conveyer galleries and100 lux for stair case. Besides, for lighting design following maintenance factors shall be adopted : 0.8 for Airconditioning area, 0.7 for non aircondioning area and 0.6 for dustprone area. These data can be furnished to the lighting fixture manufactures, and they will design and calculate number and type of lighting fixtures .

thanks

I agree with lynlynch. An analysis by a lighting engineer is required. Calculating lighting is more complicated than a simple equation. A plant layout has to be set up with the identified lighting requirements for each area of the plant. Then, you can calculate what level of lighting you need where.

One extra note to remember: Ask for 5000 kelvin or higher color temperature lighting. There have been many studies showing increased production.

I recommend you start reviewing Article 220 in the NEC....That will get you started.

This Article will address Commercial lighting loads then most of your other questions will also be in the (NEC) book. It is a very good minimum standard safey guide. Mark