Earthing practices for 25kV/50kV railways – engineering change

Track access time to maintain the railway has generally declined over time. Today, it is common practice for corridors to be shut down in order to be maintained. This tends to lead to many workgroups from multiple disciplines working inside a corridor closure. Consequently for electrified railways, less traction maintenance is being performed, since the linespersons spend a large portion of their time earthing the overhead traction system for other disciplines, leaving little time to maintain the overhead equipment itself. This paper explores the maths and science behind earthing a railway for safe access, with alignment to existing earthing and access procedures. Through transient modelling, it analyses the effectiveness of current earthing procedures, discusses strengths and weaknesses of those procedures, and proposes improvements that will increase access to track for maintenance without compromising safety.

Media Info

  • Pagination: 8p. ; PDF
  • Monograph Title: Maintaining the momentum: CORE 2016: conference on railway excellence, 16-18 May 2016, Melbourne, Victoria, Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01636838
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: May 30 2017 3:28PM