A lighting zone is a defined group of lights or surfaces assessed together.
A lighting zone is a defined group of lights, surfaces or tasks assessed together. Clear zone boundaries keep lux, load and control notes from being mixed.
Technical meaning
A lighting zone can be a room, desk bank, bench area, perimeter row, warehouse aisle, display wall or after-hours group.
The zone should have a clear area, task plane, fitting group and operating condition before calculations are compared.
Calculation use
Room and workplace calculations should keep target lux, area, UF and MF within the same zone.
Energy estimates should calculate connected load and operating hours for the same zone boundary.
Not the same as
A lighting zone is not necessarily the whole room.
A zone note is not an electrical circuit diagram or switching layout.
Australian context
Australian lighting notes should separate task zones, circulation paths and after-hours groups when the target, load or control condition differs.
Examples
Example
Value
Planning note
Kitchen bench zone
task plane only
Bench lighting may need a different target from general room lighting.
Office perimeter row
daylight-affected zone
Daylight and glare can differ from the internal desk zone.
Warehouse aisle
racking-defined zone
Vertical shelf faces and floor paths may need separate notes.