Process and main contents of the research on reliability of heating system in the former Soviet Union and Russia

Having created and proposed a set of systematic theory, rules and methods of assessment on the heating system reliability and defined the reliability requirements of heating system in the Design specifications of heating network, the former Soviet Union is among the countries that were first to study the reliability of heating system. Briefly presents the process and main contents of the research on reliability of heating system in the former Soviet Union and Russia. Expounds the principles and forms of the heating system backup, the network structure backup, the transfer capacity backup, the form of heating network with structure backup, the limit heating coefficient, the calculation methods of network transfer capacity backup and the measures on improving reliability of heating system.