The expediency of using arc-fault detection devices

International and Russian regulatory documents, setting the rules of application of arc-fault detection devices (AFDD) to electrical installations serving residential and public buildings, are considered. An overview of scientific research into the effectiveness of AFDDs is presented. Cases of arcovers are provided, followed by the analysis of their fire hazard. Cases of possible false alarms of AFDDs and methods of reducing the number of such shutdowns are demonstrated. The research data on AFDD operation are generalized and respective conclusions are drawn.