lisämaadoitus
Lisämaadoitus, meaning supplementary or additional grounding in Finnish, refers to an extra protective measure in electrical installations. It is distinct from the main protective earthing system but serves a similar purpose: to enhance safety by providing an additional path for fault currents. This can involve connecting exposed conductive parts of equipment, which are not part of the main earthing circuit but could become live in case of a fault, to the main earthing terminal or another earth electrode.
The primary goal of lisämaadoitus is to reduce the risk of electric shock. If an insulation fault
Lisämaadoitus is often implemented in specific situations where an increased level of safety is deemed necessary.