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Zoning a lighting installation means

  • A.dividing the load between two supply phases
  • B.grouping lamps of the same colour temperature together
  • C.separating the emergency lighting from the general lighting
  • D.switching areas separately so unused areas can be dark

Answer: D

Correct answer: switching areas separately so unused areas can be dark

Zoning means the switching follows the way the space is used, so a single occupant working late does not light the whole floor. It costs only wiring and switches at the outset and is nearly impossible to retrofit cheaply, which is why it belongs in the original design.

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