Seismic qualifications of electrical equipment, such as cabinet systems, have been emerging as the key area of nuclear power plants in Korea since the 2016 Gyeongju earthquake, including the high-frequency domain. In addition, electrical equipment was sensitive to the high-frequency ground motions during the past earthquake. Therefore, this paper presents the rocking behavior of the electrical cabinet system subjected to Reg. 1.60 and UHS. The high fidelity finite element (FE) model of the cabinet related to the shaking table test data was developed. In particular, the first two global modes of the cabinet from the experimental test were 16 Hz and 24 Hz, respectively. In addition, 30.05 Hz and 37.5 Hz were determined to be the first two local modes in the cabinet. The high fidelity FE model of the cabinet using the ABAQUS platform was extremely reconciled with shaking table tests. As a result, the dynamic properties of the cabinet were sensitive to electrical instruments, such as relays and switchboards, during the shaking table test. In addition, the amplification with respect to the vibration transfer function of the cabinet was observed on the third floor in the cabinet due to localized impact corresponding to the rocking phenomenon of the cabinet under Reg.1.60 and UHS. Overall, the rocking of the cabinet system can be caused by the low-frequency oscillations and higher peak horizontal acceleration.

自 2016 年庆州地震以来，机柜系统等电气设备的抗震鉴定已成为韩国核电站的重点领域，包括高频领域。此外，在过去的地震中，电气设备对高频地震动很敏感。因此，本文介绍了受 Reg 影响的电气柜系统的摇摆行为。1.60 和 UHS。开发了与振动台试验数据相关的机柜高保真有限元（FE）模型。特别是，实验测试中机柜的前两个全局模式分别为 16 Hz 和 24 Hz。此外，30.05 Hz 和 37.5 Hz 被确定为机柜中的前两个本地模式。使用 ABAQUS 平台的机柜高保真 FE 模型与振动台测试非常吻合。因此，在振动台试验过程中，机柜的动态特性对继电器和配电盘等电气仪器很敏感。此外，由于与 Reg.1.60 和 UHS 下的机柜摇摆现象相对应的局部冲击，在机柜的第三层观察到机柜振动传递函数的放大。总体而言，低频振荡和较高的峰值水平加速度可能会导致机柜系统的摇摆。由于与 Reg.1.60 和 UHS 下的机柜摇摆现象相对应的局部冲击，在机柜的第三层观察到机柜振动传递函数的放大。总体而言，低频振荡和较高的峰值水平加速度可能会导致机柜系统的摇摆。由于与 Reg.1.60 和 UHS 下的机柜摇摆现象相对应的局部冲击，在机柜的第三层观察到机柜振动传递函数的放大。总体而言，低频振荡和较高的峰值水平加速度可能会导致机柜系统的摇摆。