系统参考导体开关设备

[中文适用范围]： IEC 63445:2025适用于Prosumer（生产与消费并存的用户）电气安装（PEI）中用于家庭和类似用途的系统参考导体切换装置（SRCSD）。SRCSD的功能如IEC 60364-8-82:2022 [2]中82.8.2.2.4所述。PEI可以连接至配电网络或与配电网络断开连接，这种PEI称为可孤岛运行的PEI。有意与配电网络断开或连接依赖于SRCSD切换本地接地系统。此外，也涵盖了配电网络意外断开的情况。SRCSD是一种单极装置，用于将电力系统中的一根带电导体连接到接地装置。 [外文原描述]： IEC 63445:2025 applies to system referencing conductor switching device (SRCSD) for household and similar uses within a Prosumer’s electrical installations ( PEI ). The SRCSD provides functions as described in IEC 60364-8-82:2022 [2] , 82.8.2.2.4. PEI intended for operating by either being connected to a distribution network or disconnected from the distribution network is an islandable PEI . Intentional disconnection from and connection to the distribution network relies on the local earthing system being switched by the SRCSD. In addition, unintentional loss of distribution network is covered. The SRCSD is a single pole device intended to connect one live conductor of the power system to an earthing arrangement.