Modification History
Not applicable.
Unit Descriptor
Unit Descriptor |
1) Scope: |
1.1) Descriptor |
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This Competency Standard Unit covers the technical design of overhead transmission networks to relevant standards, including electrical clearances, electrical and mechanical loadings, earthing, environmental considerations, minor civil aspects and the handling of waterway, railway and other crossings. It also includes the necessary established procedures to ensure the line design conforms to specific organisational technical standards, operational and system planning requirements and incorporates the principles of safe design. |
Application of the Unit
Application of the Unit |
2) |
This competency standard Unit is intended to augment formally acquired competencies. It is suitable for employment-based programs under an approved contract of training. |
Licensing/Regulatory Information
License to practice |
3) |
The skills and knowledge described in this unit may require a licence/registration to practice in the work place subject to regulations for undertaking of electrical work. Practice in workplace and during training is also subject to regulations directly related to Occupational Health and Safety, electricity/telecommunications/gas/water industry safety and compliance, industrial relations, environmental protection, anti discrimination and training. Commonwealth, State/Territory or Local Government legislation and regulations may exist that limits the age of operating certain equipment. |
Pre-Requisites
Prerequisite Unit(s) |
4) |
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Competencies |
4.1) |
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Granting of competency in this unit shall be made only after competency in the following unit(s) has/have been confirmed. Where pre-requisite pathways have been identified. All competencies in the Common Unit Group must be have been completed plus all the competencies in one (1) of the identified Pathway Unit Group(s): Common Unit Group |
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Unit Code |
Unit Title |
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UEENEEE101A |
Apply Occupational Health and Safety regulations, codes and practices in the workplace |
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UEENEEE104A |
Solve problems in d.c. Circuits |
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UEENEEE107A |
Use drawings, diagrams, schedules, standards, codes and specifications |
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UEENEEG101A |
Solve problems in electromagnetic devices and related circuits |
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UEENEEG102A |
Solve problems in electromagnetic devices and related circuits |
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UETTDRDS39A |
Prepare and manage detailed construction plans for electrical power system infrastructure |
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UETTDRDS45A |
Organise and implement ESI line and easement surveys |
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UETTDREL11A |
Apply sustainable energy and environmental procedures |
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UETTDREL16A |
Working safely near live electrical apparatus |
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UETTDRIS62A |
Implement and monitor the power system organisational OHS policies, procedures and programs |
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UETTDRIS63A |
Implement and monitor the power system environmental and sustainable energy management policies and procedures |
Literacy and numeracy skills |
4.2) |
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Participants are best equipped to achieve 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 |
5 |
Writing |
5 |
Numeracy |
5 |
Employability Skills Information
Employability Skills |
5) |
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 |
Plan for and coordinate the design of overhead transmission systems |
1.1 |
OHS practices/procedures and environmental and sustainable energy procedures, which may influence the design of overhead transmission systems, are reviewed and determined. |
1.2 |
Purpose of the design is established and expected outcomes of the work are confirmed with the appropriate personnel. |
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1.3 |
Established policies, procedures and specifications for the design are obtained or established with the appropriate personnel. |
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1.4 |
Equipment/tools and personal protective equipment are selected and coordinated based on specified requirements and established procedures |
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1.5 |
Work is prioritised and sequenced for the most efficient and effective outcome following consultation with others for completion within acceptable timeframes, to a quality standard and in accordance with established procedures |
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1.6 |
Risk control measures are identified, prioritised and evaluated against the work schedule |
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1.7 |
Relevant work permits are secured to coordinate the performance of work according to requirements and/or established procedures |
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1.8 |
Resources including personnel, equipment, tools and personal protective equipment required for the job are identified, scheduled and coordinated and confirmed in a safe and technical working order |
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1.9 |
Liaison and communication issues with other/authorised personnel, authorities, clients and land-owners are resolved and activities coordinated to carry out work |
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1.10 |
Site is prepared according to the work schedule and to minimise risk and damage to property, commerce, and individuals in accordance with established procedures |
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1.11 |
Personnel participating in the work, including plant operators and contractors, are fully briefed and respective responsibilities coordinated and authorised where applicable in accordance with established procedures |
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2 |
Carry out and coordinate the design of overhead transmission systems |
2.1 |
Circuit/systems modelling is used to evaluate alternative proposals as per established procedures. |
2.2 |
OHS and sustainable energy principles, functionality and practices to avoid incidents and accidents and minimise waste are incorporated into the project in accordance with requirements and/or established procedures |
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2.3 |
System design decisions are made on the basis of safety and effective outcomes according to requirements and/or established procedures |
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2.4 |
Mathematical models of the design are used to analyse the effectiveness of the finished project as per requirements and established procedures |
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2.5 |
Technical advice is given regarding potential hazards, safety risks and control measures so that monitoring and preventative action can be undertaken and/or appropriate authorities consulted, where necessary, in accordance with requirements and established procedures |
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2.6 |
Essential knowledge and associated skills are applied to analyse specific data and compare it with compliance specifications to ensure completion of the project within an agreed timeframe according to requirements. |
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2.7 |
Solutions to non-routine problems are identified and actioned using acquired essential knowledge and associated skills according to requirements |
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2.8 |
Quality of work is monitored against personal performance agreement and/or established organisational and professional standards. |
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3 |
Complete and coordinate the design of overhead transmission systems |
3.1 |
Final inspections of the design are undertaken to ensure they comply with all requirements and include all specifications and documentations needed to complete the design brief. |
3.2 |
Appropriate personnel are notified of completion and reports and/or completion documents are finalised. |
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3.3 |
Reports and/or completion documents are submitted to relevant personnel/organisations for approval and, where applicable, statutory or regulatory approval |
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3.4 |
Approved copies of design documents are issued and records are updated in accordance with established procedures. |
Required Skills and Knowledge
REQUIRED SKILLS AND KNOWLEDGE |
8) Essential Knowledge and Associated Skills (EKAS): This describes the essential skills and knowledge and their level, required for this unit. Evidence shall show that knowledge has been acquired of designing overhead transmission systems. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01-TDS57A Power system overhead transmission systems Evidence shall show an understanding of designing power system transmission systems to an extent indicated by the following aspects: T1 Generation systems encompassing:
T2 Transmission structures and hardware encompassing:
T3 Procedures for routine maintenance on transmission structures and hardware encompassing:
T4 Procedures for installation and maintenance on transmission lines, structures and hardware encompassing:
T5 Inspection of towers and structures used for transmission lines encompassing:
T6 Inspection of transmission lines encompassing:
T7 Plant, equipment and tools used for HV live line work encompassing:
T8 High voltage switching principles encompassing:
T9 Feeder automation system encompassing:
T10 HV overhead and substation switching principles encompassing:
T11 AC transmission system components encompassing:
T12 AC transmission line electrical parameters encompassing:
T13 AC transmission line models encompassing:
T14 Basic design features and characteristics of transmission structures and associated equipment and or components encompassing:
T15 Voltage control techniques encompassing:
T16 Corona encompassing:
T17 Effects of harmonics encompassing:
T18 HV system load calculation principles encompassing:
T19 EHV system load calculation principles encompassing:
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Evidence Guide
EVIDENCE GUIDE |
9) This provides essential advice for assessment of the unit of competency and must be read in conjunction with the Performance Criteria and the range statement of the unit of competency and the Training Package Assessment Guidelines. The Evidence Guide forms an integral part of this Competency Standard Unit and shall be used in conjunction with all component parts of this unit and, performed in accordance with the Assessment Guidelines of this Training Package. |
Overview of Assessment |
9.1) |
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 accord with Industry and, Regulatory policy in this regard. 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. Hence, sources of evidence need to be ‘rich’ in nature so as 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 practiced. 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. |
Critical aspects of evidence required to demonstrate competency in this unit |
9.2) |
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Before the critical aspects of evidence are considered all prerequisites shall be met. Evidence for competence in this unit is based, shall be considered holistically. Each element and associated Performance Criteria shall be demonstrated on at least two occasions in accordance with the “Assessment Guidelines – UET12UET12”. Evidence shall also comprise:
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Range of tools/equipment/materials/procedures/workplaces/other variables |
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Group No |
The minimum number of items on which skill is to be demonstrated |
Item List |
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A |
Completion of six (6) compliant technical designs of an overhead transmission system with at least one relating to each of the following project types: |
Multi-tower extensions New installations Multi-circuit overhead lines |
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B |
Designs should also include all the following: |
Activities that address the correction of errors in the process. Application of a design control checklist which lists all of the required design activities to be carried out in this process. |
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C |
At least one occasion |
Dealing with an unplanned event by drawing on essential knowledge and associated skills to provide appropriate solutions incorporated in the holistic assessment with the above listed items. |
Context of and specific resources for assessment |
9.3) |
This unit should be assessed as it relates to normal work practice using procedures, information and resources typical of a workplace. This should include:
In addition to the resources listed above, in Context of and specific resources for assessment, evidence should show demonstrated competency working realistic environment and a variety of conditions. |
Method of assessment |
9.4) |
This Competency Standard Unit shall be assessed by methods given in Volume 1, Part 3 “Assessment Guidelines”. Note: Competent performance with inherent safe working practices is expected in the Industry to which this Competency Standard Unit applies. This requires that the specified essential knowledge and associated skills are assessed in a structured environment which is primarily intended for learning/assessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and associated skills described in this unit. |
Concurrent assessment and relationship with other units |
9.5) |
There are no recommended concurrent assessments with this unit, however in some cases efficiencies may be gained in terms of learning and assessment effort being concurrently managed. |
Range Statement
RANGE STATEMENT |
10) This relates to the unit of competency 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 Competency Standard Unit shall be demonstrated in relation to the design of overhead transmission systems and may include the following items or equipment: Manufacture’s data sheets, documents, drawings Manufacturers’ recommendations; Reliability performance profiles; Knowledge of local history and experience; Consultation with other Authorities; Environmental influences; Present practices. Equipment includes; Sectionalisers, air break switches, capacitor banks, transformer taps, metering and protection equipment, data communication systems Primary and secondary voltage and current injection equipment; time delay measuring equipment; Current transformers; Voltage transformers; Power transformers; Tapchangers; Circuit breakers; Capacitor banks; Ring main units; Audio frequency load control; Circuit breaker auxiliary systems; Substation and metal structure earthing systems; SCADA interfaces and transducer inputs; local opto-isolated alarms: PLC programs; Auto Reclosers (ACRs); protection relays; metering; control circuits; Statistical metering systems; Frame leakage relays; Distance relays; Pilot wire relays; Transformer differential relays; Busbar differential relays; Impedance bus zone relays; Overcurrent and earth fault relays; Transformer neutral check relays; Circuit breaker fail relays; Multi-trip relays; Auto recloser relays; Voltage transformer failure relays; Surge protection relays; Buchholz relays; Winding temperature relays; Sensitive earth fault relays; Phase failure relays; Frequency relays; Load shedding relays; General protection LV devices; Oil temperature protection devices; Oil surge protection devices; Power supplies. differential relays; power systems; multi-facetted schemes; interactive overload schemes, distance protection (incorporating relay selection, switched/non-switched schemes; mutual coupling and teed feeder systems); protection signalling (incorporating series, direct, permissive, distance acceleration, block interruption); telecommunication circuits and equipment. The following constants and variables included in the element/Performance Criteria in this unit are fully described in the Definitions Section 1 of this volume and form an integral part of the Range Statement of this unit:
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Unit Sector(s)
Not applicable.
Competency Field
Competency Field |
11) |
Design |