The embodiments relate to a test configuration for an impulse voltage test of electric high-voltage components with a lightning generator. The lightning generator can be moved between a first horizontal position within a cuboid container, and a vertical position relative to the container. A movement between the two positions includes a pivoting movement about a rotational axis. The proofing movement is transverse to the longitudinal direction of the lightning generator. The container can be closed at the top by at least one moveable cover.