Luminaires with theqmark
Luminaires which carry theqmark are
intend
ed for mounting furniture
made materials whose flammability not
known. The materials may painted, veneer
ed
or varnished. Since 01/08/1998, theUmark
introduced 60598 has been applied.174
The Lighting Handbook
Fire protection
Luminaires marked with U
This symbol indicates the surface tempera-
ture luminaire. period transition was agreed that
allowed the mark applied until
01/08/2005. corners wooden furni-
ture.
The luminaire mark was withdrawn in
1999.
The Umark limits the temperature to
90°C max.
Luminaires with theQmark
Luminaires which carry theQmark are
intend
ed for installation furniture.g. They are designed that normal
operation any mounting surface other
adjacent furniture surfaces not exceed a
temperature °C.
Luminaire identification marking
The following criteria must taken into account:
– position normal use
– fire behaviour environment and mounting surfaces
– minimum clearance from combustible substances and materials
. External surfaces where
highly flammable materials such dust
or fibres may accumulate, even case of
use according purpose, must not exceed
specific temperatures. vertical surfaces, 150 °C
must not exceeded. They are
designed that the event ballast
fault, flame-retardant and normally flamma-
ble materials specified DIN 4102 cannot
be ignited, e. horizontal surfaces during
normal operation and 115 the event
of ballast fault
