Illuminations at Main Control Room of PTRKN Thermalhydraulic Test Loop

Measurement and calculation of illumination at the main control room of the PTRKN Thermalhydraulic Test Loop have been done. The purpose is to know the present condition of illumination at place for possible repairmen if the average strength of lighting does not fulfill the determined standard of 500 lux. The calculation performed based on lamp layout and room design result in the average strength of lighting equal to 789.04 lux, while the measurement result is 190.9 lux. After replacing the lamp the strength of lighting is equal to 246.22 lux. But this result still under lighting strength standard. The decrease of average strength of lighting could be resulted by colour of control panel and room's floor which don't reflect the light. Thus, average lighting strength at main control room are not match to standard, yet. (author)