The terms and definitions in this standard cover all high-voltage enclosed and non-enclosed, indoor and outdoor air switches rated in excess of 1000 V used primarily in connection with generation, transmission, distribution, and conversion of electric power. This includes such switch types as disconnect, horn-gap, fault initiation, and ground for manual or power operation.The following switch types are not covered by this standard: distribution cutouts fitted with disconnecting blades, and switches used in metal-enclosed and pad-mounted switchgear. This standard also does not apply to load-break separable insulated connectors, circuit-breakers, circuit-switchers, or reclosers.
Purpose
The definitions of terms and explanatory notes relating thereto contained in this standard are not intended to encompass all possible meanings of the terms. They are intended for the sole purpose of establishing only those meanings of terms used in standards for high-voltage air switches. They do not purport to encompass other meanings that the terms may properly have when used in connection with other subjects.In some instances, terms and definitions that are not identical to those in this standard have been developed by other branches of industry. Where this situation exists, the definitions in this standard shall be used for ac high voltage air switches rated above 1000 V covered by the IEEE C37 series of standards.