In Seismic Environments, Fuses With Moving Contact And Buffer Structures Are Selected.

For the drop out fuse type with a moving contact and integrated damping structure, it is better able to withstand vibration and shock in electrical cabinets or control boxes in seismic zones than traditional rigid-mounted equipment. Under seismic load excitation, the damping structure helps reduce the relative impact between the moving contact and other internal components, which is beneficial for maintaining contact integrity and reducing the risk of unexpected contact or mismatch due to vibration. The moving contact damping design is usually manifested by adding mechanical elastic elements or vibration damping devices around the contact moving mechanism, so that the contact can maintain a stable displacement range when subjected to external vibration.