Design test requirements for all high-voltage enclosed indoor and outdoor and non-enclosed indoor and outdoor air switches rated above 1000 V are specified. This includes requirements for such switches as disconnecting, selector, horn-gap, grounding, interrupter, etc., for manual and power operation, except for distribution-enclosed single-pole air switches and distribution cutouts fitted with disconnecting blades.(Superseded by IEEE Std C37.30.1-2011)

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.