A switchgear comprising: - a fixed contactor provided in a tank filled with insulating gas; and - a movable contactor provided in the tank, the movable contactor being connected to and disconnected from the fixed contactor so as to move forward and backward, - the switchgear comprising: - a first arc extinction member including a surrounding portion which is slidably connected to the outer circumferential surface of the movable contactor halfway in a movement range from a closed contact state to an open contact state, and is formed so as to surround an arc space portion (S) in a sealed manner, the surrounding portion being formed with a through hole through which the arc space communicates with the outside of the arc space, wherein the fixed contactor comprises: a cylindrically shaped fixed arc contact provided in a central portion thereof; and a fixed main contact disposed on an outer circumferential portion of the fixed arc contact via a gap, wherein the first arc extinction member is fixed to a fixed side shield on the separating direction side of the movable contactor , the fixed side shield being formed so as to surround the fixed main contact , and wherein the surrounding portion , which is slidably connected to the outer circumferential surface of the movable contactor , is formed so as to extend in the separating direction of the movable contactor , characterized by : further comprising a second arc extinguishing member in either a) a central portion of the fixed arc contact , or b) a central portion of the movable contactor, wherein the second arc extinguishing member is constituted from a material which creates an arc extinguishing gas when exposed to an arc . - a fixed contactor provided in a tank filled with insulating gas; and - a movable contactor provided in the tank, the movable contactor being connected to and disconnected from the fixed contactor so as to move forward and backward, - the switchgear comprising: - a first arc extinction member including a surrounding portion which is slidably connected to the outer circumferential surface of the movable contactor halfway in a movement range from a closed contact state to an open contact state, and is formed so as to surround an arc space portion (S) in a sealed manner, the surrounding portion being formed with a through hole through which the arc space communicates with the outside of the arc space, a cylindrically shaped fixed arc contact provided in a central portion thereof; and a fixed main contact disposed on an outer circumferential portion of the fixed arc contact via a gap, wherein the first arc extinction member is fixed to a fixed side shield on the separating direction side of the movable contactor , the fixed side shield being formed so as to surround the fixed main contact , and wherein the surrounding portion , which is slidably connected to the outer circumferential surface of the movable contactor , is formed so as to extend in the separating direction of the movable contactor , further comprising a second arc extinguishing member in either a) a central portion of the fixed arc contact , or b) a central portion of the movable contactor, a) a central portion of the fixed arc contact , or b) a central portion of the movable contactor, wherein the second arc extinguishing member is constituted from a material which creates an arc extinguishing gas when exposed to an arc . <EOS>