DC voltage high-voltage insulator for insulating a conductor to which DC voltage is applied, having: a base body made from insulating material and running around an insulator axis; at least one outer electrode (10a, 10b) running inside the base body, preferably running around the insulator axis; at least one inner electrode running inside the base body, preferably running around the insulator axis; wherein the outer electrode (10a, 10b) is arranged in the region of the outer periphery of the base body, wherein the inner electrode is arranged in the region of the inner periphery of the base body, the base body of the DC voltage high-voltage insulator is in the form of a disc insulator base body, in axial cross section, the ratio of the average total width (w o) of the outer electrode (10a, 10b) to the average total width (w i) of the inner electrode is at least 0.6, preferably at least 0.8, particularly preferably at least 1.0, in axial cross section, the ratio of the average total width (w o) of the outer electrode (10a, 10b) to the average total width (w i) of the inner electrode is at most 1.2, preferably at most 1.0, the ratio of the average total width (w i) of the inner electrode to the width (w(r)) of the base body between the innermost radial distance of the inner electrode and the outermost radial distance of the inner electrode is at least 0.45, preferably at least 0.55, particularly preferably at least 0.65, the ratio of the average total width (w o1, w o2) of the outer electrode (10a, 10b) to the width (w(r)) of the base body between the innermost radial distance of the outer electrode (10a, 10b) and the outermost radial distance of the outer electrode (10a, 10b) is at least 0.45, preferably at least 0.55, particularly preferably at least 0.65, and the width (w(r)) of the base body on the basis of the radial distance (r) meets the following conditions: ∀ r: − 0.33 r − r 2 i r 1 o − r 2 i ⋅ w i + w i < w r < 2 r − r 2 i r 1 o − r 2 i ⋅ w i + w i ∀ r: − 0.66 r 1 o − r r 1 o − r 2 i ⋅ w o + w o < w r < 0.5 r 1 o − r r 1 o − r 2 i ⋅ w o + w o where r is greater than r 2i and less than r 1o, and r 1o is the innermost radial distance of the at least one outer electrode (10a, 10b), and where r 2i is the outermost radial distance of the at least one inner electrode. a base body made from insulating material and running around an insulator axis; at least one outer electrode (10a, 10b) running inside the base body, preferably running around the insulator axis; at least one inner electrode running inside the base body, preferably running around the insulator axis; wherein the outer electrode (10a, 10b) is arranged in the region of the outer periphery of the base body, wherein the inner electrode is arranged in the region of the inner periphery of the base body, the base body of the DC voltage high-voltage insulator is in the form of a disc insulator base body, in axial cross section, the ratio of the average total width (w o) of the outer electrode (10a, 10b) to the average total width (w i) of the inner electrode is at least 0.6, preferably at least 0.8, particularly preferably at least 1.0, in axial cross section, the ratio of the average total width (w o) of the outer electrode (10a, 10b) to the average total width (w i) of the inner electrode is at most 1.2, preferably at most 1.0, the ratio of the average total width (w i) of the inner electrode to the width (w(r)) of the base body between the innermost radial distance of the inner electrode and the outermost radial distance of the inner electrode is at least 0.45, preferably at least 0.55, particularly preferably at least 0.65, the ratio of the average total width (w o1, w o2) of the outer electrode (10a, 10b) to the width (w(r)) of the base body between the innermost radial distance of the outer electrode (10a, 10b) and the outermost radial distance of the outer electrode (10a, 10b) is at least 0.45, preferably at least 0.55, particularly preferably at least 0.65, and the width (w(r)) of the base body on the basis of the radial distance (r) meets the following conditions: ∀ r: − 0.33 r − r 2 i r 1 o − r 2 i ⋅ w i + w i < w r < 2 r − r 2 i r 1 o − r 2 i ⋅ w i + w i ∀ r: − 0.66 r 1 o − r r 1 o − r 2 i ⋅ w o + w o < w r < 0.5 r 1 o − r r 1 o − r 2 i ⋅ w o + w o where r is greater than r 2i and less than r 1o, and r 1o is the innermost radial distance of the at least one outer electrode (10a, 10b), and where r 2i is the outermost radial distance of the at least one inner electrode. r is greater than r 2i and less than r 1o, and r 1o is the innermost radial distance of the at least one outer electrode (10a, 10b), and where r 2i is the outermost radial distance of the at least one inner electrode.