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Elements and Performance Criteria

1. Prepare to assemble and wire internal signalling equipment
   • Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for work area are identified and applied
2. Hazards are identified, risks assessed, and control measures and workplace procedures are implemented
3. Safety hazards that have not previously been identified are noted on the job safety assessments and existing risk control measures implemented
4. Technical requirements relating to specific signalling equipment are obtained
5. Assembly and wiring are appropriately sequenced in accordance with job schedule
6. Appropriate person/s is consulted to ensure work is coordinated effectively with others involved on the worksite
7. Materials needed for assembly and wiring are obtained in accordance with workplace procedures and checked against job requirements
8. Tools, equipment, and testing devices needed to assemble and wire equipment are obtained in accordance with workplace procedures and checked for correct operation and safety
9. Rail signalling equipment is prepared for assembly and wiring in accordance with workplace procedures and relevant specifications
10. Assemble and wire internal signalling equipment
    • WHS/OHS risk control measures and workplace procedures for carrying out the work are followed
11. Equipment is assembled, wired, connected and labelled to comply with technical standards and job specification requirements
12. Risk control measures for dealing with unplanned situations are discussed with appropriate person/s and documented in job safety assessments
13. Unplanned situations are dealt with safely in a manner that minimises risk to personnel and equipment and with the approval of authorised person/s
14. Equipment is assembled, wired, connected and labelled efficiently without waste of materials or damage to apparatus, the surrounding environment or services using sustainable energy practices
15. Complete assembly and wiring of internal signalling equipment
    • WHS/OHS work completion risk control measures and workplace procedures are followed
16. Terminations are tested in accordance with workplace testing procedures to ensure tightness and functionality
17. Continuity and insulation tests are carried out in accordance with workplace test procedures to ensure and verify system standards are met
18. Wiring diagrams, quality requirements and safety issues are addressed and relevant reports/documentation are updated and completed in accordance with workplace procedures

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment. Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

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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:

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including risk control measures applying relevant rail signalling regulations and codes applying relevant technical manuals and catalogues to workplace practices applying sustainable energy principles and practices assembling and wiring equipment to specified/technical workplace requirements completing the assembly and wiring of internal signalling equipment completing mandatory reporting completing relevant technical reports, records and documentation conducting mandatory tests and identifying non-conformance using effective workplace methods dealing with unplanned events/situations in accordance with workplace procedures in a manner that minimises risk to personnel and equipment ensuring assembled/wired equipment operates to specifications following correct testing procedures following relevant codes of practice, WHS/OHS and environmental protection procedures and requirements interpreting signalling circuit diagrams interpreting specifications correctly preparing to assemble and wire internal signalling equipment using appropriate tools correctly and safely.

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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:

electrical safe working practices and workplace procedures faults in inverters features and characteristic of inverters under load and no-load characteristics - circuit configuration, input and output wave forms, relationship between input and output voltages and output voltage under load conditions hazards associated with low voltage (LV), extra-low voltage (ELV) and high currents, including: arrangement of power distribution and circuits in an electrical installation parts of an electrical system and equipment that operate at LV and ELV parts of an electrical system and equipment where high currents are likely linear and switch mode power supplies, including: direct current (d.c.) to d.c. converters diagnostic procedures to isolate faults isolation requirements and circuitry characteristics of switched mode power supplies operation of step-down and step-up regulators, variable frequency and pulse width modulated regulation techniques, and switched mode power supplies radiation suppression circuitry mechanical rail signalling principles, including: overview and purpose of elements - signals, point actuating systems, locking and train detection systems, control input devices, indicators, diagrams and monitors, interlocking and safe working systems mechanical rail signalling equipment including: equipment and their components, operating principles and servicing procedures optical fibre safety, including: coherent optical sources and joining procedures laser safety class 3a devices or equivalent rail signalling, drawings and diagrams, including layouts, conventions and symbols rail signalling and electro-pneumatic equipment, including operating principles and parameters, and servicing procedures relevant cable and equipment schedules relevant job safety assessments/risk mitigation processes relevant principles and purposes of risk management relevant processes for conducting a risk assessment relevant manufacturer specifications relevant rail safe working practices, protection and management relevant rail signalling, regulations and codes of practice relevant WHS/OHS legislated requirements relevant workplace documentation, manuals and catalogues relevant workplace policies and procedures risks and control measures associated with harmful dusts and airborne contaminants - thermal insulation, fibrous cement materials and asbestos, and other fibre reinforced switchboard materials risks and control measures associated with LV, including: control measures before, during and after working on electrical installations, circuits or equipment control measures for working live isolation and tagging-off procedures risks and restrictions in working live risks associated with modifying electrical installations, fault finding, maintenance and repair risks and control measures associated with high voltage (HV), including: parts of an electrical system and equipment that operate at HV terms ‘touch voltage’, ‘step voltage’, ‘induced voltage’ and ‘creepage’ as they relate to the hazards of HV, and control measures used for dealing with the hazards of HV safety, selection, use, maintenance and care of test equipment, including: checks and storage methods for maintaining the safety of testing devices safety characteristics and safe use of electrical testing devices typical applications of inverters.

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