Multi-part Document
BS EN 50122 - Railway applications. Fixed installations. Electrical safety, earthing and the return circuit

This is a multi-part document divided into the following parts:

• Part 1 Railway applications. Fixed installations. Protective provisions relating to electrical safety and earthing
• Part 2 Railway applications. Fixed installations. Protective provisions against the effects of stray currents caused by d.c. traction systems
• Part 3 Railway applications. Fixed installations. Electrical safety, earthing and the return circuit. Mutual Interaction of a.c. and d.c. traction systems