IEEE PC37.30.5 pdf download IEEE Standard for Defnitions for AC High-Voltage Air Switches Rated Above 1000 V 1. Overview1.1 Scope The terms and definitions in this standard cover all high-voltage enclosed and non-enclosed,indoor andoutdoor 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...