Abstract: An air-insulated high-voltage disconnector including a pivotally-mounted arm suitable for pivoting at one of its ends about a horizontal axis that is perpendicular to the axis &Dgr; of the arm, and also suitable for turning about its own axis &Dgr;, the free end of the arm carrying a contact part or “hammer” which, when the disconnector is in the closed position, co-operates with a jaw comprising a jaw support to which two facing rows of contact fingers are fixed, wherein the hammer is equipped with contact tabs co-operating with the contact fingers, each contact tab forming a wedge of angle &bgr;, which wedge acts, during disconnector closure, to meet the corresponding row of fingers with an angle of attack &agr;, said angle of attack &agr; being less than 90°.

Abstract: An air-insulated high-voltage disconnector includes a pivoting arm which pivots at one end about a horizontal axis perpendicular to the axis of the arm and turns about its axis. The free end of the arm carries a contact member referred to as the hammer cooperating, in the closed position of the disconnector, with a jaw including a jaw support to which are fixed two facing rows of contact fingers. The contact fingers are tubular and open at both ends.

Abstract: An air-insulated high-voltage disconnector including a pivotally-mounted arm suitable for pivoting at one of its ends about a horizontal axis that is perpendicular to the axis &Dgr; of the arm, and also suitable for turning about its own axis &Dgr;, the free end of the arm carrying a contact part or “hammer” which, when the disconnector is in the closed position, co-operates with a jaw comprising a jaw support to which two facing rows of contact fingers are fixed, wherein the hammer is equipped with contact tabs co-operating with the contact fingers, each contact tab forming a wedge of angle &bgr;, which wedge acts, during disconnector closure, to meet the corresponding row of fingers with an angle of attack &agr;, said angle of attack &agr; being less than 90°.

Abstract: An air-insulated high-voltage disconnector includes a pivoting arm which pivots at one end about a horizontal axis perpendicular to the axis of the arm and turns about its axis. The free end of the arm carries a contact member referred to as the hammer cooperating, in the closed position of the disconnector, with a jaw including a jaw support to which are fixed two facing rows of contact fingers. The contact fingers are tubular and open at both ends.

Abstract: A whip usable in a high tension section switch, in particular a vertically-opening switch, the whip comprising a flexible metal rod whose section is a truncated circle whose area diminishes progressively from the base of the whip to its tip.