This standard summarizes various design tests that shall be made on all types of high-voltage enclosed indoor or outdoor and non-enclosed indoor or outdoor air switches, and describes accepted methods used in making these tests. For tests on apparatus insulators, see ANSI C29.1-1988.1 High-voltage air switches in IEEE Std C37.20.2-1987, IEEE Std C37.20.3-1987, IEEE Std C37.71-1984, and ANSI C37.72-1987 are not covered by this standard.