Reference system for basic-restrictions related evaluation of magnetic field exposure an approach by the example of resistance welding equipment

摘要

The values of electric field strength and current density arising in the tissues of a human body exposed to a magnetic field which varies with time are the essential criteria for field exposure evaluation. Concerning workplaces at industrial high-current installations, e.g., resistance welding equipment it is advantageous to be able to determine these values. Based on numerical field calculations including the application of a human body model, a database for various field exposure situations at resistance welding workplaces was set up. Embedded in a reference system organizing the query and comparison to limits this database can be used for basic-restrictions related magnetic field exposure evaluations avoiding the necessity to carry out time-consuming numerical field calculations in industrial praxis.