Response Mechanism Of Copper Terminal Blocks Under Short-circuit Electrodynamic Impact

In high-current fault events, the conductor copper terminal block in a power system faces a series of complex physical shocks. When a short circuit occurs, the current increases instantaneously to several times or even tens of times the normal operating current. This sudden change causes electromagnetic forces to accumulate rapidly in the copper distribution block body and its connecting structures. According to the electromagnetic force mechanism, the short-circuit current flowing through the conductor generates a strong magnetic field around it, and significant Lorentz forces appear inside the conductor and between it and adjacent conductors. These forces induce mechanical responses such as bending, vibration, or displacement in the conductor copper terminal strip.