test conforming with
the relevant standard, the luminaire has withstand hits
from three directions maximum impact speed of
60 km/h, the ball used having the size handball.
Balls hitting luminaires must not damage them to
cause luminaire parts fall down.178
The Lighting Handbook
Ball-proofness
Luminaires for sports halls must ball-proof according to
DIN VDE 0710-13.
.
When choosing the luminaires, the rod guard’s grid width
must matched the sport played the hall: must
always considerably smaller than the balls used, never of
the same size, balls may get stuck the guard
