Electric contact for use in flame proof enclosure in mining field, has fixed and movable elements contacting against each other by passing from open to closed position, where each element has conductive unit of conductive composite material

摘要

The contact (1) has a fixed element (2A) and a movable element (2B) contacting against each other by passing from open position to closed position and vice versa. Each element includes a conductive unit (4) to pass electric current between the elements, where the conductive unit is made of conductive composite material, where the material is selected from silicone based polymer charged with particles of conductive metal e.g. silver.