GB/T 18216.7-2024
交流1000V和直流1500V及以下低壓配電系統電氣安全 防護措施的試驗、測量或監控設備 第7部分:相序
Testing, measuring or monitoring equipment for electrical safety protective measures in low voltage power distribution systems up to and including 1000 V AC and 1500 V DC Part 7: Phase sequence
GBT18216.7-2024, GB18216.7-2024