A bushing comprising: a bushing body, an electrode contained in the bushing body, a flange body mounted to the bushing body wherein the flange body is grounded during normal operation of the bushing, a tap assembly (7; 7') comprising: a hollow electrically conductive sleeve portion extending from the flange body, a conductor connected to the electrode and extending from the electrode into the sleeve portion, a pin connected to the conductor, an insulating body provided around the conductor in the sleeve portion, and an electrically conductive lid (7a; 7'a) configured to be assembled with the sleeve portion, the lid (7a; 7'a) having a cap portion (7e; 7'e) and a hollow cylindrical extension portion, wherein the cap portion (7e; 7'e) is configured to receive an end portion of the pin wherein the pin is configured to be in mechanical contact with the cap portion (7e; 7'e), wherein the extension portion extends axially from the cap portion (7e; 7'e) and is configured to be received by the sleeve portion, and wherein the extension portion is configured to surround the insulating body in the sleeve portion when the lid (7a; 7'a) is assembled with the sleeve portion wherein in the sleeve portion the insulating body is arranged at a radial distance from the inner surface of the sleeve portion, whereby a chamber is formed therebetween, wherein the extension portion is configured to extend inside the chamber from a lid end of the chamber and along at least half of the length of the chamber, such as along at least two thirds of the length of the chamber, such as along at least three fourths of the length of the chamber, wherein the extension portion has a free end arranged in the sleeve portion when the lid (7a; 7'a) is assembled with the sleeve portion, and wherein the lid (7'a) comprises an insert assembly and the cap portion (7'e) has an insert assembly opening configured to receive the insert assembly, characterized in that the insert assembly comprises a plunger having a plunger opening configured to receive the end portion of the pin, wherein the plunger is configured to mechanically contact the end portion of the pin, and wherein the insert assembly comprises a resilient member configured to bias the plunger axially in the insert assembly opening towards a bottom surface of the insert assembly opening to provide mechanical contact between the plunger and the cap portion (7'e), and wherein an inner surface of the plunger opening is provided with at least one radially resilient contact element configured to provide mechanical contact between the plunger and the pin. a bushing body, an electrode contained in the bushing body, a flange body mounted to the bushing body wherein the flange body is grounded during normal operation of the bushing, a tap assembly (7; 7') comprising: a hollow electrically conductive sleeve portion extending from the flange body, a conductor connected to the electrode and extending from the electrode into the sleeve portion, a pin connected to the conductor, an insulating body provided around the conductor in the sleeve portion, and an electrically conductive lid (7a; 7'a) configured to be assembled with the sleeve portion, the lid (7a; 7'a) having a cap portion (7e; 7'e) and a hollow cylindrical extension portion, a hollow electrically conductive sleeve portion extending from the flange body, a conductor connected to the electrode and extending from the electrode into the sleeve portion, a pin connected to the conductor, an insulating body provided around the conductor in the sleeve portion, and an electrically conductive lid (7a; 7'a) configured to be assembled with the sleeve portion, the lid (7a; 7'a) having a cap portion (7e; 7'e) and a hollow cylindrical extension portion, wherein the cap portion (7e; 7'e) is configured to receive an end portion of the pin wherein the pin is configured to be in mechanical contact with the cap portion (7e; 7'e), wherein the extension portion extends axially from the cap portion (7e; 7'e) and is configured to be received by the sleeve portion, and wherein the extension portion is configured to surround the insulating body in the sleeve portion when the lid (7a; 7'a) is assembled with the sleeve portion wherein in the sleeve portion the insulating body is arranged at a radial distance from the inner surface of the sleeve portion, whereby a chamber is formed therebetween, wherein the extension portion is configured to extend inside the chamber from a lid end of the chamber and along at least half of the length of the chamber, such as along at least two thirds of the length of the chamber, such as along at least three fourths of the length of the chamber, wherein the extension portion has a free end arranged in the sleeve portion when the lid (7a; 7'a) is assembled with the sleeve portion, and wherein the lid (7'a) comprises an insert assembly and the cap portion (7'e) has an insert assembly opening configured to receive the insert assembly, characterized in that the insert assembly comprises a plunger having a plunger opening configured to receive the end portion of the pin, wherein the plunger is configured to mechanically contact the end portion of the pin, and wherein the insert assembly comprises a resilient member configured to bias the plunger axially in the insert assembly opening towards a bottom surface of the insert assembly opening to provide mechanical contact between the plunger and the cap portion (7'e), and wherein an inner surface of the plunger opening is provided with at least one radially resilient contact element configured to provide mechanical contact between the plunger and the pin.