Modification History
Not applicable.
Unit Descriptor
Unit Descriptor |
1) Scope1.1) Descriptor |
This unit covers the isolation, disconnecting, repairing, reconnecting and maintenance of stationary gas fuelled turbine engines up to a capacity of 5GJ/hr (1300kw), for approval where required. It encompasses working safely and to relevant standards disconnecting, carry out repairs and replacement of fuel train components to given specifications. Reconnecting the engine including: pre start tests, start up, adjusting components and controls to safe and efficient operation. Completing all required documentation. Note: 500kw equates to a gas input of approximately 6Gj/hr. |
Application of the Unit
Application of the Unit |
2)2.1) General ApplicationThis competency standard unit is suitable for employment-based programs under an approved contract of training at the AQF level of the qualification in which the unit is first packaged or higher. The unit may be selected as an elective unit (see qualification packaging rules) provided that all prerequisite units are undertaken or addressed through recognition processes. This unit may be included in a skill set. 2.2) ImportationRTOs wishing to import this unit into any qualification under the flexibility provisions of NQC/NSSC Training Package Policy should ensure all pre-requisite units are also imported into the relevant Training Package and qualification. |
Licensing/Regulatory Information
License to practice |
3) |
During Training:Competency development activities are subject to regulations directly related to licensing, occupational health and safety and where applicable contracts of training such as apprenticeships. In the workplace:The application of the skills and knowledge described in this unit in some States/Territories requires an authority to practice in the workplace. Other conditions may apply under State and Territory legislative and regulatory requirements. |
Pre-Requisites
Prerequisite unit(s) |
4.1) Competencies |
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Granting competency in this unit shall be made only after competency in the following unit(s) has/have been confirmed |
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Common Unit Group |
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UEGNSG005A |
Prepare to work in the Australian gas industry |
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WHS/OHS Unit Group |
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UEGNSG141A |
Apply Workplace Health and Safety regulations, codes and practices in the gas industry |
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Or |
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CPCCOHS1001A |
Work safely in the construction industry |
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and |
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HLTAID001 |
Perform cardiopulmonary resuscitation |
4.2) Literacy and numeracy skills Participants are best equipped to achieve competency in this unit if they have reading, writing and numeracy skills indicated by the following scales. Description of each scale is given in Volume 2, Part 3 ‘Literacy and Numeracy’ |
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Reading |
4 |
Writing |
4 |
Numeracy |
4 |
Employability Skills Information
Employability Skills |
5)This unit contains Employability Skills The required outcomes described in this unit of competency contain applicable facets of Employability Skills. The Employability Skills Summary of the qualification in which this unit of competency is packaged will assist in identifying Employability Skill requirements. |
Elements and Performance Criteria Pre-Content
6) Elements describe the essential outcomes of a competency standard unit |
Performance Criteria describe the required performance needed to demonstrate achievement of the element. Assessment of performance is to be consistent with the Evidence Guide. |
Elements and Performance Criteria
ELEMENT |
PERFORMANCE CRITERIA |
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1 |
Prepare to repair and maintain gas fuelled turbine engines |
1.1 |
WHS/OHS procedures for a given work area are identified, obtained and understood. |
1.2 |
Health and safety risks are identified and established risk control measures and procedures in preparation for the work are followed. |
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1.3 |
Safety hazards that have not previously been identified are noted and established risk control measures are implemented. |
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1.4 |
Formal authority to proceed with repair and maintenance is obtained before commencing work, in accordance with regulatory and code of practice requirements |
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1.5 |
Repair and maintenance is prepared in consultation with others affected by the work and sequenced appropriately. |
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1.6 |
The nature and location of the work is determined from documentation or appropriate person to establish the scope of work to be undertaken. |
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1.7 |
Plant, equipment and component specifications and manufacturer manuals are obtained for planned work activity |
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1.8 |
Material needed for the repair and maintenance work is obtained in accordance with established procedures and checked against job requirements. |
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1.9 |
Tools, equipment, including personal protective equipment, and testing devices needed to for the repair and maintenance work are obtained in accordance with established procedures and checked for correct operation and safety. |
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1.10 |
Preparatory work is checked to ensure no damage has occurred and complies with requirements. |
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2 |
Repair and maintain gas fuelled turbine engines |
2.1 |
WHS/OHS risk control measures and procedures for carrying out the work are followed. |
2.2 |
Regulatory and code of practice recording and reporting requirements are satisfied at appropriate times throughout the work sequence. |
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2.3 |
Gas and electrical circuits/machines/plant are checked and recorded as being isolated and safe where necessary in strict accordance authority and WHS/OHS requirements and procedures before work is commenced. |
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2.4 |
Nature and possible cause of faults or out of specification performance are identified from defect reports or operational records. |
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2.5 |
Fault finding is approached methodically drawing on knowledge of gas fuelled turbine engines using observation, measurement, calculations and comparison with normal system and component parameters/values. |
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2.6 |
Faults beyond the scope of gas fuel train, ignition or fume exhaust work are identified and arrangements are made for appropriately competent and authorised person to rectify faults |
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2.7 |
Engine is disconnected where necessary to carry out maintenance and repairs in strict accordance authority and WHS/OHS requirements and procedures. Note: No modifications are permitted. |
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2.8 |
Components are removed/dismantled where necessary and parts stored to protect them against loss or damage |
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2.9 |
Faulty components are rechecked and their fault status confirmed. |
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2.10 |
Materials required to rectify faults are sourced and obtained in accordance with established procedures |
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2.11 |
Repair and maintenance work is carried out efficiently without unnecessary waste of materials or damage to apparatus, circuits, the surrounding environment or services and using sustainable energy principles. |
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2.12 |
Effectiveness of the repair is tested in accordance with established procedures. |
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2.13 |
System is reassembled, reconnected and finally tested to ensure it is operating safely, effectively and complies with relevant requirements. |
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2.14 |
Unexpected situations are dealt with safely and with the approval of an authorised person. |
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3 |
Completion and report repair and maintenance |
3.1 |
WHS/OHS work completion risk control measures and procedures are followed. |
3.2 |
Final check of the engine is made to verify that it complies to all requirements, including any certification requirements by local authorities. |
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3.3 |
Work area is cleared and materials disposed of or recycled in accordance with federal, state and territory legislation and workplace procedures. |
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3.4 |
Tools and equipment are cleaned, checked, serviced and stored in accordance with manufacturer recommendations and workplace procedures |
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3.5 |
Work site is cleaned and made safe in accordance with established procedures. |
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3.6 |
Maintenance and repair work is documented and an appropriate person or persons notified in accordance with established procedures. |
Required Skills and Knowledge
7) This describes the skills and knowledge and their level, required for this unit. |
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Evidence shall show that knowledge has been acquired of safe working practices and repairing and maintaining gas fuelled turbine engines up to a capacity of 500kW or speeds of 3600RPM. All knowledge and skills detailed in this unit should be contextualised to current industry standards, technologies and practices. The extent of the required skills and knowledge required is given below. It forms an integral part of this unit. |
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KS01-G139A |
Repairing and maintaining gas fuelled turbine engines |
Evidence shall show an understanding of repairing and maintaining stationary gas fuelled turbine engines, applying safe working practices and relevant Standards, Codes and Regulations to an extent indicated by the following aspects: |
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T1. Gas fuel
T2. Gas fuelled turbine engines
T3. Fuel train requirements
T4. Exhaust/flue requirements
T5. Location’s ventilation requirements
T6. Hazardous area requirements
T7. Codes, regulations and standards
T8. Design specifications
T9. Required authority to proceed
T10. Site Arrangements
T11. Site Safety
T12. Engine diagrams
T13. Fault finding
T14. Disconnect requirements and procedures
T15. Repairs and maintenance requirements and procedures
T16. Reconnection requirements and procedures
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Evidence Guide
8) The Evidence Guide forms an integral part of this Unit and shall be used in conjunction with all components parts of this unit and performed in accordance with the Assessment Guidelines of this Training Package. |
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Overview of Assessment |
8.1)Longitudinal competency development approaches to assessment, such as Profiling, require data to be reliably gathered in a form that can be consistently interpreted over time. This approach is best utilised in Apprenticeship programs and reduces assessment intervention. It is the Industry’s preferred model for apprenticeships. However, where summative (or final) assessment is used it is to include the application of the competency in the normal work environment or, at a minimum, the application of the competency in a realistically simulated work environment. It is recognised that, in some circumstances, assessment in part or full can occur outside the workplace. However, it must be in accordance with industry and regulatory policy. Methods chosen for a particular assessment will be influenced by various factors. These include the extent of the assessment, the most effective locations for the assessment activities to take place, access to physical resources, additional safety measures that may be required and the critical nature of the competencies being assessed. The critical safety nature of working with electricity, electrical equipment, gas or any other hazardous substance/material carries risk in deeming a person competent. Sources of evidence need to be ‘rich’ in nature to minimise error in judgment. Activities associated with normal every day work have a bearing on the decision as to how much and how detailed the data gathered will contribute to its ‘richness’. Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practised. These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments. Sample assessment instruments are included for Assessors in the Assessment Guidelines of this Training Package. |
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Critical aspects of evidence required to demonstrate competency in this unit |
8.2)Before the critical aspects of evidence are considered all prerequisites shall be met. |
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Evidence for competence in this unit shall be considered holistically. Each element and associated performance criteria shall be demonstrated on at least two occasions in accordance with the ‘Assessment Guidelines – UEG11’. Evidence shall also comprise:
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A |
Conducting maintenance |
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B |
Finding faults efficiently |
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C |
Disconnecting engine |
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D |
Rectifying faults without damage |
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E |
Reconnecting |
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F |
Providing written reports on work undertaken |
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H |
Dealing with unplanned events |
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Context of and specific resources for assessment |
8.3) This unit should be assessed as it relates to normal work practice using procedures, information and resources typical of a workplace. This should include:
These should be part of the formal learning/assessment environment. Note: Where simulation is considered a suitable strategy for assessment, conditions must be authentic and as far as possible reproduce and replicate the workplace and be consistent with the approved industry simulation policy. |
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The resources used for assessment should reflect current industry practices in relation to installing low voltage electrical apparatus and associated equipment. |
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Method of assessment |
8.4)This unit shall be assessed by methods given in Volume 1, Part 3 ‘Assessment Guidelines’. Note: |
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Concurrent assessment and relationship with other units |
8.5) |
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There are no concurrent assessment recommendations for this unit. |
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The critical aspects of occupational health and safety covered in either UEGNSG141A or CPCCOHS1001A and HLTCPR201A and other discipline specific occupational health and safety units shall be incorporated in relation to this unit. |
Range Statement
9) This relates to the unit as a whole providing the range of contexts and conditions to which the performance criteria apply. It allows for different work environments and situations that will affect performance. |
This unit shall be demonstrated in relation to repairing and maintaining stationary gas fuelled turbine engines up to a capacity of 5GJ/hr (1300kw), which includes each of the following: |
It does not include the following:
The gas fuel can be from gas gathering lines, gas transmission pipelines, distribution pipeline, and consumer gas installations. Gas Fuels can be natural gas, LPG, SNG, bio-gas, waste gas or sewage gas, used as a single gas fuel or part of a dual fuel system. |
Generic terms used throughout this Vocational Standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms that apply are given in Volume 2, Part 2.1. |
Unit Sector(s)
Gas Industry
Competency Field
Competency Field |
11) |
Maintenance |