本加载指南适用于根据IEEE标准额定电压超过1000 V的交流高压空气开关 C37。30-1992.1本标准不适用于IEEE Std C37涵盖的外壳中使用的开关。20.2-1993，IEEE标准C37。20.3-1996，IEEE标准C37。23-1987，IEEE标准C37。71-1984和ANSI C37。72-1987. 此外，IEEE还涵盖了断路器开关。PC37。39不在本标准范围内。如果空气开关配有负载断路装置或断路器，则可能无法成功中断高于铭牌额定值的电流。

This loading guide applies to ac high-voltage air switches in excess of 1000 V rated in accordance with IEEE Std C37.30-1992.1 This standard does not apply to switches used in enclosures covered by IEEE Std C37.20.2-1993, IEEE Std C37.20.3-1996, IEEE Std C37.23-1987, IEEE Std C37.71-1984, and ANSI C37.72-1987. Moreover, interrupter switches covered by IEEE. PC37.39 are excluded from the scope of this standard. If an air switch is equipped with a load-break device or interrupter, it may not successfully interrupt currents above the nameplate rating.