BS EN 50123-7-2:2003

This standard BS EN 50123-7-2:2003 Railway applications. Fixed installations. d.c. switchgear. Measurement, control and protection devices for specific use in d.c. traction systems is classified in these ICS categories:

• 17.220.20 Measurement of electrical and magnetic quantities
• 29.280 Electric traction equipment

This European Standard gives the requirements for isolating current transducers and other current measuring devices used in d.c. railway applications, fixed installations.

This transducer is normally positioned between the sensor in the live switchboard conductor or rail and the secondary device, giving galvanic insulation between the input and the output.