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Elements and Performance Criteria

  1. Prepare to find and repair rail signalling system fault/s
  2. Hazards are identified, WHS/OHS risks assessed, and control measures and workplace procedures are implemented in preparation for work
  3. Safety hazards that have not previously been identified are documented on job safety assessments, risks are assessed, and control measures determined and implemented in consultation with appropriate person/s
  4. Appropriate person/s is consulted to determine the nature and scope of the fault/s and to coordinate effectively with others affected by the fault/s
  5. Likely causes of the fault/s and order of probability are determined from system data and historical trends
  6. Impact of the fault on system is ascertained and appropriate person/s notified in accordance with workplace procedures
  7. Materials needed to find and repair the fault are obtained in accordance with workplace procedures and checked against job specifications
  8. Tools, equipment and testing devices needed to find and repair the fault/s are obtained in accordance with workplace procedures and checked for correct operation and safety
  9. Circuits/equipment are inspected and checked as being isolated, where necessary, in strict accordance with operational procedures and WHS/OHS requirements
  10. Find and repair rail signalling system faults
  11. Signalling system performance parameters/standards are applied to appropriate fault-finding techniques
  12. Inspection and tests are conducted to determine the type and location of fault/s
  13. Wiring system is visually inspected for physical damage or installation defects, as required
  14. Methods for dealing with unplanned situations are selected on the basis of safety and specified work outcomes
  15. Ongoing inspections and checks of the signalling system are undertaken to confirm the continued rectification of the fault
  16. Fault/s are located and identified efficiently, without waste of materials or damage to apparatus, the surrounding environment or services using sustainable energy practices
  17. Signalling system faults are rectified in accordance with workplace procedures
  18. Complete repair/s to rail signalling system
  19. Unresolved faults are reported to appropriate person/s for further action in accordance with workplace procedures
  20. Inspection and test results, actions taken or recommended are documented and appropriate person/s notified in accordance with workplace procedures
  21. Component fault/s, test result/s, authorisation/s and permit/s documentation are completed to provide an accurate database and facilitate follow-up action and relevant reports

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least two separate occasions and include:

locating and repairing three different types of rail signalling system faults, including:

interpreting plans and specifications correctly

identifying and interpreting fault history

identifying faults efficiently

rectifying faults promptly using appropriate diagnostic techniques

minimising interruption to rail traffic and services

using testing equipment and tools correctly and safely

confirming the integrity of the signalling system

following relevant codes of practice

completing relevant technical reports, records

dealing with unplanned events

applying rail safe working practices and relevant industry standards, codes and rail safety regulations

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including:

implementing workplace procedures and practices

using risk control measures

applying sustainable energy principles and practices

confirming fault history and symptoms through observation and application of first-line tests

finding and repairing of the signalling system fault/s and reporting requirements

locating and repairing rail signalling system faults.

Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

rail signalling system fault finding and repair, safe working practices and relevant standards, codes and regulations, fault-finding and diagnostic techniques encompassing:

establishing an accurate description of the fault situation by appropriate questioning of client or operator

questioning techniques to efficiently and effectively obtain from a client/operator a description of a fault situation

confirming the fault history and symptoms through observation and application of first-line tests

drawing valid conclusions from observations

identifying concepts of broad first-line testing

in the absence of the client or operator, to establish the symptoms through application of systematic tests and observation

identifying appropriate diagnostic tests for given symptoms using manufacturers' charts, handbooks and specification sheets

using results of systematic tests to identify symptoms

rail signalling system fault finding encompassing:

system operational and safety requirements

common mechanical faults, symptoms and testing

common electrical faults, symptoms and testing

common control faults, symptoms and testing

rail signalling system repairs encompassing:

system operational and safety requirements

fault/circuit/system isolation

repairing/replacing faulty components

component testing

reconnection of component/circuit/system

relevant job safety assessments or risk mitigation processes, including:

possessions protection and management

relevant industry standards, codes of practice, regulations and WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace policies and procedures.