www bzfxw com BRITISH STANDARD BS EN 50123 7 3 2003 Railway applications — Fixed installations — D C switchgear — Part 7 3 Measurement, control and protection devices for specific use in d c traction[.]
BRITISH STANDARD Railway applications — Fixed installations — D.C switchgear — Part 7-3: Measurement, control and protection devices for specific use in d.c traction systems — Isolating voltage transducers and other voltage measuring devices The European Standard EN 50123-7-3:2003 has the status of a British Standard ICS 29.280 12&23