Technical Booklet E Fire Safety·Page 89·3.15
Thermoplastic lighting diffusers in fire-protecting or fire-resisting ceilings
Thermoplastic lighting diffusers may only be used in fire-protecting or fire-resisting ceilings if they have been satisfactorily tested as part of a luminaire within a ceiling assembly that provides the appropriate fire resistance.
A thermoplastic lighting diffuser should not be incorporated in a fire-protecting or fire-resisting ceiling unless it has been satisfactorily tested as part of a luminaire within a ceiling assembly that provides the appropriate fire resistance.
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