IPVMU Certified | 07/26/15 04:20pm
IACLEA has established lighting standards for higher education (see below). I am told that these are lighting measurements are intended to be taken at waist height. When specifying video and considering minimum light levels to match camera specs (or to pick a capable camera to meet existing lighting conditions), my belief is one needs to take into account target area reflectivity (e.g. concrete, grass, asphalt) and measure the lighting at ground level. I am concerned with how to reconcile these two expectations.
Lighting is expensive to install, maintain and sustain from an energy consumption perspective. Clients are all tending to want to "Go Green". The IACLEA standards when compared to IESNA seem to be very high but the measurements may be taken differently.
Would you believe that there would be a need to present two light levels to the Owner - one to meet IACLEA and one that reflects actual light from the ground surface considering the reflectivity issue for video?