Light-Emitting Diode Drivers—Methods of Measurement
Scope:
This standard describes the procedures to be followed and the precautions to be taken in measuring the performance of LED drivers commonly used in general lighting, exterior lighting, roadway lighting, and similar applications. The scope includes LED drivers that may have these characteristics:
a. Input supply voltage up to 600 VDC or 600 VAC (60 or 50/60 Hz)
b. Output open-circuit voltage of 600 V or less
c. Constant-current or constant-voltage direct current (DC) output
d. Fixed, pulse-width modulation (PWM), or programmable (tunable or dimmable) output power
e. External (standalone) or internal (enclosed in luminaire)
Project need:
This new edition work has been initiated by NEMA and is needed to add a new test method for AUX Power Supplies as described in ANSI C137.4-2021. This revision will further clarify the Standby Power Test Methods. This proposed New Edition is being developed at the request of BC Hydro. It will provide the industry with measuring performance of LED drivers
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