Insulating spacer for gas-insulated electrical equipment

Provided is an insulating spacer for gas-insulated electrical equipment, said spacer being highly reliable and capable of being economically manufactured, as well as having a simple structure. The insulating spacer (10) comprises a molded insulator (11) having an embedded central conductor (12), wherein the molded insulator (11) part is disposed between the flanges (1A, 2A) of metal containers (1, 2) and is coupled by means of multiple penetrating bolts (5). The external circumference of the molded insulator (11) of the insulating spacer (10) is made smaller than the flanges (1A, 2A), and the insulating spacer (10) is provided with a thin section (11A), one lateral side of which is formed into a thin ring. An annular metal fixture (14) having an L-shaped cross-section is fitted onto the thin section (11A) of the molded insulator (11), said fixture defining the dimensions of the space between the flanges (1A, 2A) and forming a current path between the metal containers (1, 2). The annular metal fixture (14) is