T/CAS 517-2021 Evaluation specification for pen-and-paper worktable lamp's subtraction effect
T/CAS 517-2021 Evaluation specification for pen-and-paper worktable lamp's subtraction effect
Basic Information
Scope
Scope: This standard specifies the requirements for the evaluation of the subtraction effect of reading and writing task lamps (hereinafter referred to as lamps) using tungsten filament lamps, fluorescent lamps, or LEDs as light sources, with a power supply voltage not exceeding 250 V. This standard applies to lamps used for providing illumination for reading, writing, or similar activities in homes, classrooms, and similar places; Main technical content: This standard specifies the requirements for the evaluation of the subtraction effect of reading and writing task lamps (hereinafter referred to as lamps) using tungsten filament lamps, fluorescent lamps, or LEDs as light sources, with a power supply voltage not exceeding 250 V. This standard applies to lamps used for providing illumination for reading, writing, or similar activities in homes, classrooms, and similar places.