Railway applications - Fixed installations - D.C. switchgear -- Part 7-2: Measurement, control and protection devices for specific use in d.c. traction systems - Isolating current transducers and other current measuring devices
铁路设施固定装置直流开关设备第7-2部分:直流牵引系统专用测量、控制和保护装置隔离电流传感器和其他电流测量装置