Prismalumes with 400 watt high pressure sodium lamps were installed in the cold room where food processing and cartoning functions are performed. The units replaced incandescent fixtures previously used in theis area, which is maintained at 34 degrees. The Prismalumes' high efficiency reduces the refrigeration load because the fixtures run cooler. Footcandle levels in the cold room are 30 maintained, and 15 in the palletized area where there is less activity. Johnson said the Holophane fixtures in both areas have been highly priased by employees for their brightness and uniformity.
Visibility is improved because there are fewer shadows and less glare.
Presently, a schedule for relamping and cleaning the fixtures has not been developed. However, Johnson feels maintenance will be relatively easy because of the Prismalumes' quick disconnect feature. The ability to completely remove the fixtures from the work area will allow repairs to be made without disrupting production.