Detection Performance of Arc Fault Detection Devices According to the Chinese Standard GB31143

Abstract

This paper presents an experimental investigation into the operating characteristics of arc fault detection devices according to the tests in the Standard GB31143. A testing platform was set up in the laboratory, and the tripping time of AFDD samples was recorded. Some AFDDs cannot detect the arc fault in time. Identifying the fault arc current in the case of masking load is a tremendous challenge to AFDDs now. The algorithm in the AFDDs for cutting off the circuit within the specified time also needs to be further improved.