| 标准编号 | BS EN 50123-7-2:1999 |
| 标准名称 | Railway applications. Fixed installations. d.c. switchgear. Measurement, control and protection devices for specific use in d.c. traction systems. Isolating current transducers and current measuring devices. Isolating current transducers and other current measuring devices |
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| 废止日期 | 2003-07-11 |
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