| 标准编号 | BS EN 50123-7-3:1999 |
| 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 voltage transducers and other voltage measuring devices. Isolating voltage transducers and other voltage measuring devices |
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| 废止日期 | 2003-07-11 |
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