Disconnecting device for a power line and method for disconnecting a power line

A disconnecting device for a power line, the disconnecting device comprising:

• at least one disconnecting means which is spatially arranged between a first connector and a second connector when the disconnecting device is in a closed state,
• the at least one disconnecting means being movable between a closed position and an open position, and having at least one connecting element forming an electrical connection between the first and second connectors when the disconnecting device is in the closed state,
• wherein the at least one connecting element is electrically connected to the first connector via a first contact point and to the second connector via a second contact point when the disconnecting device is in the closed state,
• wherein the at least one disconnecting means is arranged in such a way that a breakdown voltage between the first connector and the second connector when the disconnecting device is in an open state is greater than the breakdown voltage between at least one of the first connector and the first contact point of the at least one connecting element and the second connector and the second contact point of the at least one connecting element,
• wherein the at least one disconnecting means is coated with at least two resistor elements which have different specific conductivities and form a resistance gradient, and
• wherein the at least two resistor elements, immediately after disconnection, are arranged between the first and second connectors, thereby electrically connecting the first and second connectors.