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Elements and Performance Criteria

  1. Prepare/plan to develop HV switching schedules
  2. Carry out the development of HV switching schedules
  3. Complete development of HV switching schedules

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 developing an HV switching schedule

All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies

KSTISA High voltage switching schedules

KS01-TIS48A High voltage switching schedules

Evidence shall show an understanding of developing high voltage switching schedules to an extent indicated by the following aspects

T Electrical equipment fundamentals used in the powerline industry encompassing

Legislation Standards codes legislation supply authority regulations and specific enterprise regulations pertaining to the use and care of electrical equipment HV and LV equipment

Characteristics capabilities and application of powerline electrical equipment

Safety precautions with regards to using electrical equipment

Techniques in preuse inspection on the serviceability of electrical equipment

Techniques in the general maintenance and care and storage of electrical equipment

Identifying hazards assessing and controlling risks associated with their the use of electrical equipment

T High voltage switching principles encompassing

Standards codes legislation supply authority regulations and or enterprise requirements applicable to switching of high voltage to a given schedule

Requirements for the use of manuals system diagramsplans and drawings types characteristics and capabilities of electrical apparatus use characteristics and capabilities of specialised tools and testing equipment network interconnectors source of possible backfeed

Role of the HV switching operator

Operational forms access authorities and permits associated with HV switching types of operational forms access authorities and permits purpose and procedure for operational forms access authorities and permits

Use and operation of equipment associated with HV overhead and substation equipment test instruments sticks interrupters arc stranglers

Types and categories of HV switchgear

Application function and operating capabilities of switchgear

Restrictions pertaining to HV switching equipment

Procedures for the isolation of HV transmission main and working earths

Earthing HV electrical apparatus practices and procedures for access purposes of Operational and additional work part onsite earths factors determining the location and effectiveness of Operational earthing acceptable industry procedures personal protective equipment high voltage switching techniques

Operate switching apparatus identifying hazards assessing and controlling risks associated with HV switchgear operation systematic and defensive techniques mobile radio procedures double isolation procedures

T High voltage distribution transformer principles encompassing

Operation of HV distribution transformers principle governing factors for transformer ratings protection and alarms operating limitations and the relationship between transformer and HV fuse rating purpose and principle operation of HV distribution transformer tap changers HV distribution transformer and transformer cable combination switching practices paralleling requirements isolation and earthing procedures for access common distribution transformer and associated electrical apparatus faults

HV underground switching equipment arc stranglers switch operation load break elbows switching cubicles canister fuses bayonet fuses F and G switching cubicles voltage indicators and phasing testers

T High voltage SWER system encompassing

Application and function of SWER system components

Circuit arrangement

Principle of operation

Hazards and procedures associated with faulty SWER earth systems

Procedure to isolate energise and commission SWER substations

T Feeder automation system encompassing

Function of feeder automation system and the main components

Operation procedure for a remote field device from a local control station

Functions of System Control and Date Acquisition SCADA or any other relevant Data Acquisition and Control systems and its main components

SCADA system security interlocks and access restrictions

SCADA system operation when switching apparatus or retrieving data via a remote access device such as Remote Access Terminal RAT Dial Up Voice Annunciated System and Local Control Station

Function of the main components of a localremote control system

Operation of a field devices using SCADA systems via a Remote Access Terminal RAT Dial Up Annunciated System and Local Control Station

T HV system switching principles including switching authorisation procedures encompassing

Legislation Standards codes legislation supply authority regulations and or enterprise requirements applicable to system switching

Requirements for the use of manuals system diagramsplans and drawings

Types and characteristics of HV systems and equipment to be switched

Procedures for obtaining correct HV switching authorisation identification of OHS hazards assessing and controlling risks safety procedures and precautions safe approach distances responsibilities and protocols identifying switching resources procedures for obtaining electrical access permits authorities requirements for team switching procedures for coordination of operations

Techniques in HV system switching preswitching checks switching operational procedures isolation procedures and proving dead deenergised earthing procedures emergency fault procedures energisation procedures

T HV overhead and substation switching principles encompassing

Legislation Standards codes legislation supply authority regulations and or enterprise requirements applicable to HV overhead and substation switching

Requirements for the use of manuals system diagramsplans and drawings types characteristics and capabilities of HV electrical equipment to be switched use characteristics and capabilities of specialised tools and testing equipment

Role and responsibilities of the HV switching operator

Operational forms access authorities and permits hazardrisk assessments associated with HV switching types of operational forms access authorities and permits hazardrisk assessments purpose and procedure for operational forms access authorities and hazardrisk assessments

Use and operation of equipment associated with HV overhead and substation equipment test instruments sticks interrupters arc stranglers

HV switchgear types categories application operating capabilities

Operation of HV overhead switching or indicating devices fuses disconnect fuses load switching live line indicators capacitors reclosers sectionalisers underslung links airbreaks switches disconnects live line clamps phasing sticks phasing tester

Operation of protection systems and substation equipment fault levels and settings types and applications protection systems and substation equipment fault levels and settings types and applications

Restrictions pertaining to HV switching equipment

Procedures for the isolation of HV mains and working earths earthing HV electrical apparatus practices and procedures for access authority issuing HV switching techniques

Operate switching apparatus identifying hazards assessing and controlling risks associated with HV switchgear operation systematic and defensive techniques mobile radio procedures double isolation procedures

T Preparation of a HV switching instruction schedule encompassing

Legislation Standards codes legislation supply authority regulations and or enterprise requirements applicable to switching instruction schedules

Requirements for the use of manuals system diagramsplans and drawings types characteristics and capabilities of HV electrical equipment to be switched points of isolation and earthing locations safety and working earths responsibilities of the switching operator

Techniques in writing switching instructions sequence of switching operations isolation procedures earthing procedures switching completion notification procedures

T Enterprise specific policy and procedure instructions encompassing

Responsibilities and duty of care of employer and employee relationship

Methods of obtaining the uptodate information on enterprise policy and procedures

Rules and regulations

Induction into workplace location of work area and storage area timetable uniform personal wellbeing housekeeping rules emergency procedures evacuation procedures

Techniques when deal with others working in teams customer relation complaint and issues procedures

Overview of enterprise professional development fire fighting procedures fatigue management training and competency development understanding and promotion

T Enterprises specific OHS instructions encompassing

Standards codes legislation supply authority regulations and specific enterprise regulations pertaining to the OHS policies and procedures

Methods of obtaining the uptodate information on enterprise OHS policy and procedures

Specific enterprise personal protection equipment type and application where and when to be used method of replacement responsibility of maintenance including cleaning inspection and testing emergency response rescue evacuation and First Aid procedures

Personal wellbeing hygiene fatiguestress management drugsalcohol

OHS training induction training specific hazard training specific task or equipment training emergency and evacuation training training as part of broader programs such as equipment operation

OHS records including audits inspection reports workplace health and environmental monitoring records training and instruction records manufacturers and suppliers information such as MSDSs registers maintenance reports workers compensation and rehabilitation records and First Aidmedical records

T Enterprises specific technical drawing and documents encompassing

Types and application of enterprise specific drawings and documents electrical and electronic drawings mechanical drawings project charts schedules graphs technical manuals and catalogues

Instructionworksheets sheets types and application of enterprise specific symbols and diagrams

Title box description of parts and version control

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

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 UET 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

All of the following

Approvalsclearances

Access authorities

B

At least one of the following

Development of an interconnected switching schedule

Development of a radial switching schedule

C

All of the following

Planning of loading of network components including standby generation

Evaluate load parameters and effects on system including paralleling and offloading

Identify unexpected sources of energisation eg generators UPS etc

Implementing earthing procedures to reduce induced voltages

Authorising issuance of workpermits

D

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 development of HV switching schedules

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

For optimisation of training and assessment effort competence in this unit may be assessed concurrently with the following units

UETTDRISA Develop low voltage switching schedule

UETTDRIS49A Develop low voltage switching schedule


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 development of HV switching schedules and include the use of system diagrams, data schedules, system loading data and use of computer based systems.

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:

Appropriate and relevant persons (see Personnel)

Appropriate authorities

Assessing risk

Assessment

Authorisation

Confined space

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

Hazards

Identifying hazards

Inspect

Legislation

Notification

OHS practices

OHS issues

Permits and/or permits to work

Personnel

Quality assurance systems

Requirements

Testing procedures

Work clearance systems