Practice question

What is the 'point-by-point' method of lighting calculation?

  1. Calculating the average illuminance over the entire area
  2. Calculating illuminance at specific grid points on the roadway using the candela distribution data from the luminaire's IES file
  3. Counting the number of poles
  4. Measuring the voltage at each pole

Answer: B — Calculating illuminance at specific grid points on the roadway using the candela distribution data from the luminaire's IES file

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