1Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Defense, Ukraine, Cherkasy, Ukraine
2Department of Civil Security, Lutsk National Technical University, Lutsk, Ukraine
3Institute of public administration and research in civil protection, Kyiv, Ukraine
4Cherkasy State Technological University, Cherkasy, Ukraine
5The State Emergency Service of Ukraine, Kyiv, Ukraine
6Ministry of Defence of Ukraine, Kyiv, Ukraine
7The National Defence University of Ukraine named after Ivan Cherniakhovskyi, Kyiv, Ukraine
The analysis of individual components and elements of energy systems, in particular, power supply systems, which can lead to disruptions in the functioning of these systems, was carried out in the work. It notes that electrical sockets are the places where ignition and subsequent fires can occur due to large values of transient resistance. For an example, a separate element of electrical networks (sockets), experimental studies were carried out on a laboratory installation under different conditions of its operation, which can cause its excessive local heating - damaged or undamaged contacts, the presence and absence of a thermal fuse. It is shown that it is the safest to use sockets with a normal connection, both with and without a thermal fuse, when applying the studied currents for 60 min, whereas the greatest danger can occur when applying a current of 16 A for sockets with affected contacts. It is recommended to use a thermal fuse in sockets designed for a current of 16 A and difficult to locate in places with excessive consumer properties such as service stations, auto repair shops, shopping areas, etc., to further increase the safety of power grid operation.
Energy system, Electricity grid, Local heating, Current, Thermal fuse, Socket
