This unit involves the skills and knowledge required to assemble and wire internal rail signalling equipment for location boxes, enclosures and equipment rooms.

It includes following workplace procedures, assembling and mounting components, performing internal wiring, terminating cables, and wiring and testing to certify equipment.

Persons achieving competence in this unit will need to fulfil the applicable state/territory legislated rail safety requirements and to comply with relevant codes of practice, rules and/or guidelines.

No other licensing, legislative or certification requirements apply to this unit at the time of publication.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare to assemble and wire internal signalling equipment

1.1

Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for work area are identified and applied

1.2

Hazards are identified, risks assessed, and control measures and workplace procedures are implemented

1.3

Safety hazards that have not previously been identified are noted on the job safety assessments and existing risk control measures implemented

1.4

Technical requirements relating to specific signalling equipment are obtained

1.5

Assembly and wiring are appropriately sequenced in accordance with job schedule

1.6

Appropriate person/s is consulted to ensure work is coordinated effectively with others involved on the worksite

1.7

Materials needed for assembly and wiring are obtained in accordance with workplace procedures and checked against job requirements

1.8

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

1.9

Rail signalling equipment is prepared for assembly and wiring in accordance with workplace procedures and relevant specifications

2

Assemble and wire internal signalling equipment

2.1

WHS/OHS risk control measures and workplace procedures for carrying out the work are followed

2.2

Equipment is assembled, wired, connected and labelled to comply with technical standards and job specification requirements

2.3

Risk control measures for dealing with unplanned situations are discussed with appropriate person/s and documented in job safety assessments

2.4

Unplanned situations are dealt with safely in a manner that minimises risk to personnel and equipment and with the approval of authorised person/s

2.5

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

3

Complete assembly and wiring of internal signalling equipment

3.1

WHS/OHS work completion risk control measures and workplace procedures are followed

3.2

Terminations are tested in accordance with workplace testing procedures to ensure tightness and functionality

3.3

Continuity and insulation tests are carried out in accordance with workplace test procedures to ensure and verify system standards are met

3.4

Wiring diagrams, quality requirements and safety issues are addressed and relevant reports/documentation are updated and completed in accordance with workplace procedures

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.

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.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in suitable workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated suitable workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or other simulations

relevant and appropriate materials, tools, facilities, equipment and personal protective equipment (PPE) currently used in industry

relay, racks/frames/enclosures, switch circuit controllers, telephone technology and vital computer-based interlocking modules

applicable documentation, including workplace procedures, equipment specifications, regulations, codes of practice and operation manuals.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

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.

Electrotechnology

Rail Signalling