Light fittings in cold stores

[smpsmp45]

We come across various ways of fitting the Light fixtures in a cold store.

Is there any standard or any formula to work out the no of fittings required ?

[sterl]

I'm not sure of your question....But there is a whole science devoted to selecting fixtures and spacings based on cavity rations, desired footcandles at different levels above the floor, cleanliness and ballast degradation over time, illumination intensity and wavelength retention at low temperatures and on and on. A lot of this is listed by the CIE standards...

For a primer see:

http://www.rsltg.com/images/441_-_Math.pdf

[Magoo]

I work on 10watts per square metre.