Law, authorities and health
AR
Abbreviation for Anwendungsregel
In short and in plain language
AR stands for application rule, a technical rule.
It comes from a German group for electrical work.
You meet it in daily life with a small solar plant on a balcony. It says how to link the plant to the power in the home.
Definition
AR stands for application rule, a technical rule of the German electrical engineering association VDE. In everyday life you come across it in the connection rules for a balcony solar system.