High-amperage welding currents of resistance welding equipment cause intense magnetic fields. As a consequence, the occurring magnetic field exposure of operators has to be assessed. In the paper existing procedures to evaluate the magnetic field exposure of resistance welders and to prove compliance with given limits are illustrated taking exposure-influencing design aspects into account. The evaluation procedures include the consideration of basic restrictions established for current density values occurring inside a human body and reference levels established for magnetic flux density values and other quantities occurring in the workplace area.
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