Device for monitoring an electric circuit network in particular an on-board motor vehicle electrical system and method for monitoring such electric circuit network

摘要

The battery (2) is connected to an on/off switch (4) and an electrical conductor (6). The conductor is connected to a user circuit (8). There is a return line (10) to the negative pole of the battery. A leakage path (30) with a high resistance (R Le) goes from the negative pole of the user to the carbon-fiber bodywork (12). The bodywork has a high resistance expressed as many local resistances (Rc). There are many sensor connections (20) with connections to a monitoring circuit (14) connected to a data bus (23).