Describe the luminaires used in the manufacturing area.
What will be an ideal response?
The luminaires used in the manufacturing area are industrial-type fluorescent luminaires. Each luminaire uses two F96T12/CW/VHO lamps rated at 215 watts each. However, the power losses in the ballasts increase this value to 450 volt-ampere per luminaire. The fluorescent ballasts used are all of the high power factor type with individual fusing provided in accordance with 368.17. The luminaires are also equipped with lead-lag adders, which cause the lamps to fire at different times. In other words, the current wave crest of one lamp occurs nearly one-half cycle before the second lamp receives the wave crest. This arrangement eliminates most of the stroboscopic effect that occurs if individual lamps are used or if the lead-lag system is not used.
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