The document discusses locomotive safety critical systems and the National Railway Safety Regulator in South Africa. It outlines the regulator's purpose of promoting safe railway operations. It describes some key locomotive safety systems like the on-board computer display and communication network. It also discusses safety critical components such as wheels, couplers, bearings, and brake gear that are regulated.

1. LOCOMOTIVE SAFETY CRITICAL SYSTEMS and RAILWAY SAFETY REGULATOR Presented by: Ir Jan de Beer Pr Eng Transnet Rail Engineering

4. Railway safety 4 2 1

5. Railway safety 4 2 1

6. RSR: Permit 4 2 1

9. Safety management system 4 2

11. NATIONAL RAILWAY SAFETY REGULATOR ACT Design, construction and commissioning life cycle requirements The operator or prospective operator shall undertake the design, construction and commissioning phases of the life cycle for engineering and operational systems in accordance with SANS 3000-1:2005 and SANS 3000-2-1. SANS 3000-2-2 . 4 2

12. NATIONAL RAILWAY SAFETY REGULATOR ACT Prospective operator: Safety permit for commissioning and testing Prior to the commencement of testing under live and/or simulated operating conditions, the prospective operator shall be in possession of a Commissioning and Testing Safety Permit. The application for a Commissioning and Testing Safety Permit shall be made to the Regulator at least 60 days prior to the first commissioning and testing being undertaken. . 4 2

13. NATIONAL RAILWAY SAFETY REGULATOR ACT Existing Operator: Research and development: testing of technologies under live operating conditions Prior to the testing of new or modified technology, the operator shall provide the RSR with a schedule of the tests, the scope of the tests, a detailed risk analysis including mitigation of the risks. 4 2

14. Technology to support Locomotive safety TRITON 4 2

17. Locomotive safety critical systems: on board computer communication network 4 2

18. Locomotive safety critical items 4 2 Wheel condition and profile Cracks and possible loose tyres the flange thickness, flange radius and flange height dimensions

19. Safety critical interface Wheel Rail 4 2 1

20. Safety critical components: Points & crossings 4 2 1

21. Locomotive safety critical items 4 2 Coupler & draw gear Condition of the draw gear is critical. Coupler height and wear limits of the knuckle, visible cracks etc.

22. Safety critical components: coupler 4 2

23. Safety critical components: coupler 4 2 1

24. Safety critical components: Cow catcher 4 2 1

25. Locomotive safety critical items 4 2 Condition of the Bearings Lack of lubricant cause seizure of bearings. Result turn-off axles.

26. Safety critical components: Bearings 4 2 1

27. Locomotive safety critical items 4 2 A comprehensive brake test is done during every shedding intervention and the brake blocks are checked and replaced if worn . Train brakes are checked as a system every time before a train departs from a yard where the train was made up.

28. Safety critical components: Brake gear 4 2 1

29. Safety critical components: Brake gear../2 4 2 1

30. Safety critical components: Brake gear../3 4 2 1

31. Safety critical components: Brake gear …/4 4 2 1

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33. Locomotive safety non critical items 4 2 Functioning and setting of the headlights Crack free and clean windscreen Operation and correctly set windscreen wipers Electrical protection systems High voltage interlocking on the locomotive Vigilance equipment Wheel spin equipment Hooter Air conditioner Seats Door seals Cab cleanliness

34. Locomotive safety non critical items: Electrical supply 4 2

35. Locomotive and the Environment: Questions??? Thank you!!! 4 2