The Lighting Handbook ZG

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Vydal: ZG Lighting Czech Republic s.r.o

Strana 174 z 244







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horizontal surfaces during normal operation and 115 the event of ballast fault. The Umark limits the temperature to 90°C max. 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. Luminaires with theqmark Luminaires which carry theqmark are intend­ ed for mounting furniture made materials whose flammability not known.174 The Lighting Handbook Fire protection Luminaires marked with U This symbol indicates the surface tempera- ture luminaire. The materials may painted, veneer­ ed or varnished.g. corners wooden furni- ture. 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 . Since 01/08/1998, theUmark introduced 60598 has been applied. period transition was agreed that allowed the mark applied until 01/08/2005. They are designed that normal operation any mounting surface other adjacent furniture surfaces not exceed a temperature °C. The luminaire mark was withdrawn in 1999. Luminaires with theQmark Luminaires which carry theQmark are intend­ ed for installation furniture