58
FACILITIES GUIDE | JUNE 2020
5.3 Lighting recommendations for indoor courts
5.3.1 Lighting requirements
Horizontal
illuminance
Uniformity of
illuminance
Glare Lamp colour
temperature
Lamp colour
rendering
E
h
average (lux) E
min
/E
h
ave. GR (K) Ra
Class I > 750* > 0.7 < 50 > 4000 > 80
Class II > 500* > 0.7 < 50 > 4000 > 65
Class III > 300* > 0.5 < 55 > 2000 > 20
Table 7. Summary of the lighting criteria for indoor courts. The above average horizontal
illuminances are maintained values.
5.3.2 Installation
Recommended systems of lighting use luminaires that are mounted parallel to the sidelines and
outside the PPA. No luminaires should be positioned in the part of the ceiling which is directly
above the area limited by the rectangle of the marked area extended to the full depth of the run
back behind the base lines.
The interior surfaces of indoor courts can help to make the ball more visible against them however,
the right choice of colour and reflectance can also assist with perceived quality of the lighting
installation. Background colours of blue or green are preferable and should be as uniform as
possible.
Glare from windows – positioning windows at low level alongside the court and not behind the
server reduces this possibility.