The complexity of integrating the earthing of an AC electrified railway with various electrical distribution systems and exposed conductive parts means that it is impossible to prescribe one earthing and bonding design solution that addresses the needs of every railway. Therefore, different earthing designs are needed for individual railways.

• Acknowledgements
• Section 1: Introduction
• Section 2: AC electrification distribution system
• Section 3: Mass of Earth as part of a traction return circuit
• Section 4: Traction return requirements and circuit configuration
• Section 5: Protection against electric shock
• Section 6: Electrification system assets excluding the traction return
• Section 7: Assets not part of the electric traction system
• Section 8: System measurements
• Section 9: Lightning protection for railway structures
• Section 10: Earthing and bonding at AC/DC interfaces
• Section 11: Safe working during maintenance, renewal and decommissioning
• Appendix A: Definitions and abbreviations
• Appendix B: Regulations and standards
• Index