DIN EN 50122-3:2021-05 草案 鐵路應(yīng)用 固定設(shè)施 電氣安全、接地和回路 第3部分:交流和直流牽引系統(tǒng)的相互作用
Draft Document - Railway applications - Fixed installations – Electrical safety, earthing and the return circuit - Part 3: Mutual Interaction of AC and DC traction systems; German and English version prEN 50122-3:2020