本标准规定了继电器和继电器系统的设计试验，这些试验与设备对重复电气瞬变的抗扰度有关。规定了两种类型的测试。振荡和快速瞬态SWC试验被定义为不同的试验。但是，如果满足单个SWC测试的所有要求，则不打算禁止组合测试。 SWC测试应用于继电器和继电器系统以外的设备是指定测试人员的责任。

This standard specifies design tests for relays and relay systems that relate to the immunity of this equipment to repetitive electrical transients. Two types of tests are specified. The oscillatory and fast transient SWC tests are defined as distinct tests. However, it is not intended to prohibit a combined test, provided all requirements of the individual SWC tests are met. The application of SWC tests to equipment other than relays and relay systems is the responsibility of those specifying the testing.