Standby power measurement research of household electrical appliances

CAI Yonghua1, JIANG Yuqin2, TANG Renxing1

（1.Zhejiang Academy of Science of Technology for Inspection & Quarantine, Hangzhou 311215, China;
2.Zhejiang Lead Product Technic Co., Ltd., Hangzhou 311215, China）

Abstract: Aiming at measurement of house electrical appliance standby power，study on relationship between EUT circuit characteristics and selection of power meter, power meter wiring mode and test result correction method was carried. Principle of selection for current scale and wiring mode of power meter was presented. Allowable error and measurement error requirement and computational method were given by some test cases according test method of IEC623012011 house electrical appliancesmeasurement of standby power. The results indicate that accuracy of standby power test is closely related to EUT circuit characteristics and can not be expressed by the precision of the instruments directly, so its compliance should be determined by calculating error of the result. The research conclusion is useful for normalization and standardization of low standby power measurement.

Key words: household electrical appliances; standby power consumption; standby power measurement; MCR; product standardization.