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Elements and Performance Criteria

1. Prepare/plan to draft and layout an overhead distribution extension
   • Works schedule(s), including drawings, plans, requirements, established procedures, and material lists, are obtained and analysed, if necessary, by site inspection and the extent of the work determined for planning and coordination.
   • 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.
   • Risk control measures are identified, prioritised and evaluated against the work schedule.
   • Relevant requirements and established procedures for the work are communicated to all personnel and identified for all work sites.
   • Hazards are identified, OHS risks assessed and control measures are prioritised, implemented and monitored including emergency exits kept clear, to ensure safe systems of work are followed and according to established procedures.
   • Relevant work permits are secured to coordinate the performance of work according to requirements and/or established procedures.
   • 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.
   • Clients/Customers are provided with possible solutions and /or options within the scope, acceptable cost and requirements.
   • Liaison and communication issues with other/authorised personnel, authorities, clients and land owners are resolved and activities coordinated to carry out work.
   • 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.
   • Site is prepared according to the work schedule and to minimise risk and damage to property, commerce, and individuals in accordance with established procedures.
   • Positioning of road signs, barriers and warning devices is planned in accordance with requirements.
2. Carry out drafting and layout of an overhead distribution extension
   • OHS and sustainable energy principles and practices to reduce the incidence of accidents and minimise waste are monitored and actioned in accordance with requirements and/or established procedures.
   • First Aid, Pole Top Rescue and other related work procedures are performed according to requirements and/or established procedures.
   • Lifting, climbing, working in confined spaces and aloft, and use of power tools/equipment, techniques and practices are safely exercised according to requirements.
   • Hazard warnings and safety signs are recognised and hazards and assessed OHS risks are reported to the immediate authorised persons for directions according to established procedures.
   • Remedial actions are taken to overcome any shortfalls encountered in the work schedule according to requirements and/or established procedures.
   • The drafting and layout of an overhead distribution extension is carried out, in accordance with the work schedule and requirements and/or established procedures.
   • Essential knowledge and associated skills are applied for the drafting and layout of an overhead distribution extension to ensure completion in an agreed timeframe and, to quality standards with a minimum of waste according to requirements.
   • Solutions to non-routine problems are identified and actioned using acquired essential knowledge and associated skills according to requirements.
   • Ongoing checks of quality of the work are undertaken in accordance with requirements and established procedures to ensure a quality outcome is achieved for the client/customer and to a community/industry standard
3. Complete drafting and layout of an overhead distribution extension
   • Work undertaken is checked against works schedule for conformance with requirements, anomalies reported and solutions identified in accordance with established procedures.
   • Accidents and/or injuries are reported and followed up in accordance with requirements/established procedures.
   • Work site is rehabilitated, cleaned up and confirmed safe in accordance with established procedures.
   • Tools, equipment and any surplus resources and materials are, where appropriate, cleaned, checked and returned to storage in accordance with established procedures.
   • Relevant work permit(s) are signed off and the job is returned to service and advised to client/customer in accordance with requirements.
   • Works completion records, reports, as installed /modified drawing(s) and/or documentation and information are confirmed, processed and appropriate personnel notified.

Required Skills

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 drafting and laying out an overhead distribution extension All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies KSTDSA Power system overhead distribution extension KS01-TDS31A Power system overhead distribution extension Evidence shall show an understanding of the power system overhead distribution extension to an extent indicated by the following aspects T Installation of overhead distribution conductors encompassing Standards codes legislation supply authority regulations and or enterprise requirements applicable to installing conductors and associated equipment Requirements for the use of overhead line construction manuals system diagramsplans and drawings material lists conductor size type and route length Constructions types and structures for distribution and sub transmission lines Types sizes and characterises of overhead conductors Resources for the stringing and maintenance of conductors types of low and high voltage overhead electrical conductor connections causes and effects of poor electrical connections reasons for and methods used to maintain standard phase sequencing removing repairing and replacing of damage conductors minimum clearances between overhead conductors and low and high voltage structures Techniques for conductor installation types and application of tools equipment and hardware methods of stringing tensioning and termination of low and high voltage conductors T Installation of poles and or structures and hardware encompassing Standards codes legislation supply authority regulations and or enterprise requirements applicable to installing poles and associated hardware Requirements for the use of enterprise construction manuals system diagramsplans and drawings characteristics and applications of different types of poles and associated hardware Techniques for installing poles and associated hardware types of installation equipmenttools excavation methods types of footingsfoundations types of attachments earthing systems clearances between conductors safe methods of erecting and stabling poles and or structures and cross arms Techniques for maintenance of poles and associated hardware stabilisation techniques for unstable poles methods of strengthen poles maintenance and replacement of high voltage insulators and cross arms T Different types and function of distribution components encompassing CommonwealthStateTerritory and local government legislation Standards codes Commonwealth StateTerritory and local government legislation supply authority regulations and or enterprise requirements applicable to the use and application of distribution components Requirements for the use of overhead line construction manuals system diagramsplans and drawings Types function and characteristics of distribution components Safety policies and procedures precautions related to the handling and installing distribution components T Enterprise specific switching diagrams and drawing encompassing Types and application of enterprise specific switching drawings and documents wiring and schematic diagrams and switching symbols mechanical drawings dealing with switching operations project charts switching schedules graphs technical manuals and catalogues instructionwork sheets Interpretation of different system switching diagrams LV system switching diagrams DC traction supply sectioning diagrams HV transmission and distribution system symbols and feeder plans processes of updating switching diagrams T Power distribution network documentation encompassing Requirements for the use of manuals system diagramsplans and drawings and for plans such as work method statements for the control of OHS risks Types and application of power distribution network documentation drawings and documents wiring and schematic diagrams drawings and switching symbols mechanical drawings dealing with the power distribution network project charts schedules graphs technical manuals and catalogues instructionworksheets sheets Interpretation of different diagrams and documentation on LV and HV systems overhead distribution extensions underground distribution extensions distribution substation street lighting system T Layout principles for overhead distribution encompassing Commonwealth StateTerritory and local government legislation Standards codes supply authority regulations and or enterprise requirements applicable to overhead distribution layout Requirements for the use of overhead line construction manuals system diagramsplans and drawings and for plans such as work method statements for the control of OHS risks Methods in determining material equipment and tool lists components types and quantity required spacing of components such as equipment poles crossarms costings of items and components Purchasing and contractual arrangements to include a requirement to eliminate OHS hazards minimise risks and provide residual OHS risk information Determination of conductor size type and route length Resources needed for the stringing and maintenance of conductors Types of low LV and HV overhead electrical conductor connections Minimum clearances between overhead conductors and low LV andHV structures Estimation of the duration of overhead distribution extension project T Fundamentals of surveying for the purpose of producing an overhead or underground distribution extension encompassing Commonwealth StateTerritory and local government legislation Standards codes supply and aviation authority regulations and or enterprise requirements applicable to the surveying for an overhead and underground extension Techniques in measuring heights and distances Techniques in taking bearings angles of deviation using a compass Techniques in using a clinometer Techniques in recording and storage of data Requirements for the use of overhead line construction manuals system diagramsplans and drawings Techniques in plotting long spans measuring stick clinometer trundle wheel tapes correction for sloping ground distance across objects and range rods Techniques in pegging pole positions foot path alignments types of pegs pegs of other authorities and locating survey pegs T Fundamentals of computer aided drafting CAD for drafting and layout of distribution extension and upgrades encompassing Commonwealth StateTerritory and local government legislation Standards codes supply authority regulations and or enterprise requirements applicable to the drafting and layouts of distribution extensions and upgrades Types of computer hardware and software tools and equipment for the production of a draft and layout of distribution extension and or upgrade Techniques in storing and retrieving programs and files from the computer Identification and methods of retrieving and manipulating digital symbols designs layouts fonts and graphs stored in the computer Techniques in using the CAD package in following necessary commands and protocols in accordance with the operating instructions of the CAD software manufacturer Note Examples include using file structure menu utilisation system library usage data banking achieving file management and maintenance procedures Calculation of dimensions and drafting measurements using the computer Techniques in the preparation of preliminary sketches using the computer Techniques in using D computer graphics system and associated equipment to produce a distribution extension and or upgrade draft or layout Techniques to diagnosing basic faults in computer operation Requirements for aerial linework planning establishing and implementing relevant aviation authority clearances determining system requirements aircrew familiarisation with network operations and equipment requirements for effective communications operations for aerial work

Evidence Required

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

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 Industrys 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 substancematerial 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
	Before the critical aspects of evidence are considered all prerequisites shall be met 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 UETUET Evidence shall also comprise A representative body of Performance Criteria demonstrated within the timeframes typically expected of the discipline work function and industrial environment In particular this shall incorporate evidence that shows a candidate is able to Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the Performance Criteria and range and Apply sustainable energy principles and practices as specified in the Performance Criteria and range and Demonstrate an understanding of the essential knowledge and associated skills as described in this unit to such an extent that the learners performance outcome is reported in accordance with the preferred approach namely a percentile graded result where required by the regulated environment and Demonstrate an appropriate level of employability skills and Conduct work observing the relevant Anti Discrimination legislation regulations policies and workplace procedures and Demonstrated performance across a representative range of contexts from the prescribed items below
		Range of toolsequipmentmaterialsproceduresworkplacesother variables
		Group No	The minimum number of items on which skill is to be demonstrated	Item List
		A	At least one of the following	Produce an LV single phase distribution extension planlayout Produce an LV multiphase distribution extension planlayout
		B	At least one of the following	Layout a HV single phase distribution extension Layout a HV multiphase distribution extension
		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

This unit should be assessed as it relates to normal work practice using procedures information and resources typical of a workplace This should include OHS policy and work procedures and instructions Suitable work environment facilities equipment and materials to undertake actual drafting and layout of an overhead distribution extension In addition to the resources listed above in Context of and specific resources for assessment evidence should show demonstrated competency working at realistic heights above ground ie above metres in limited spaces with different structuralconstruction types and method and in a variety of environments

Method of assessment

This Competency Standard Unit shall be assessed by methods given in Volume Part 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 learningassessment 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
	There are no recommended concurrencies for this unit

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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 Unit shall be demonstrated in relation to undertaking a draft and layout of an overhead distribution extension and may include the following equipment: Pole, including wood, concrete, steel and composite), associated hardware, including conductors (bare wire and aerial bundle cable), crossarms, insulators, ACR, regulator, earthing, air break switches, gas switches, capacitor units, transformers, links, fuses, sectionalisers, lead arrestors, HV switchgear, LV switchgear, control boxes, communications equipment, lanterns, signage, supervisory cable, cable TV, substations, relevant protection systems and associated civil works. Drafting equipment, computer or manual Powerline design software, mechanical and/or electrical survey equipment including; measuring tapes and chains, levels, inclinometer, measuring wheels and integrated survey stations. 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. They form an integral part of the Range Statement of this unit: Appropriate and relevant persons (see Personnel) Appropriate authorities Appropriate work platform Assessing risk Assessment Authorisation Confined space Diagnostic, testing and restoration Documenting detail work events, record keeping and or storage of information Drawings and specifications Emergency Environmental and sustainable energy procedures Environmental legislation Environmental management documentation Established procedures Fall prevention Hazards Identifying hazards Inspect Legislation MSDS Notification OHS practices OHS issues Permits and/or permits to work Personnel Quality assurance systems Requirements Safe design principles Testing procedures Work clearance systems

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