Light flicker test in the United States

Home appliances, like washers, dryers, refrigerators, etc., can cause volta ge fluctuations and light flicker A standardized flicker test has been esta blished in Europe (IEC 1000-3-3), However, the European test is designed fo r 230-V 50-Hz power and needs to be modified for a 115-V 60-Hz supply. In t his paper, the reference impedance and the limits of flicker tests for 115 V/60 Hz systems are proposed. A high-performance power analysis system, the Xitron 2803AH power analyzer, was used to study the voltage fluctuations a nd flicker caused by some washing machines. The analysis and test results p rovided in this paper can serve as a proposal for establishing a U.S. light flicker testing standard for 115 V/60 Hz.