Exemplary embodiments are directed to an electrical component for a high-voltage installation. The electrical component in a coaxial arrangement, has an electrical conductor which extends along an axis and is connected to high-voltage potential and a rigid insulating body. The insulting body is fastened on the electrical conductor and surrounds the electrical conductor. A mounting flange is fastened on the insulating body, and is connected to ground potential. A dome-shaped control electrode is electrically connectively connected to the electrical conductor and is fastened to one end of the electrical conductor. During operation of the installation, the control electrode controls the electrical field between the electrical conductor and the mounting flange. The control electrode is connected non-detachably to the electrical conductor and has a dimensionally stable dome consisting of the solid polymer composition to provide a simple manufacturing process and increase the operational reliability of the component.