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Elements and Performance Criteria

  1. Prepare for the LV field switching to a given schedule
  2. Carry out LV field switching to a given schedule
  3. Complete the LV field switching to a given schedule

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 performing high voltage field switching to a given schedule

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

KS TISA Remote community network field switching

KS01 –TIS35A Remote community network field switching

Evidence shall show an understanding of the remote community network field switching to an extent indicated by the following aspects

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

T Requirements for the use of manuals system diagramsplans and drawings encompassing

Types characteristics and capabilities of electrical apparatus

Use characteristics and capabilities of specialised tools and testing equipment

LV network interconnectors for alternate sources of supply and possible backfeed

HV network interconnectors source of possible backfeed

T Procedures for obtaining correct LV switching authorisation encompassing

Identification of hazards assessing and controlling risks

Safety procedures and precautions

Safe approach distances

Responsibilities and protocols

Identifying switching resources

Procedures for obtaining electrical access permitsauthorities

Requirements for team switching

Procedures for coordination of operations

T Techniques in LV system switching encompassing

Isolation procedures and proving dead

Preswitching checks

Switching operational procedures

Emergency fault procedures

Energisation procedures

T Role of the HV switching operator

T Procedures for obtaining correct HV switching authorisation encompassing

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 permitsauthorities

Requirements for team switching

Procedures for coordination of operations

T Use and operation of equipment associated with HV overhead and substation equipment encompassing

Test instruments

Sticks

Interrupters

Arc stranglers

T Operation of protection systems and substation equipment

Note Examples include fault levels and settings types and applications protection systems and substation equipment fault levels and settings types and applications

T Types and categories of HV switchgear

T Application function and operating capabilities of switchgear

T Restrictions pertaining to HV switching equipment

T Procedures for the isolation of HV transmission main and working earths

T Earthing HV electrical apparatus practices and procedures for access encompassing

Purposes of Operational and additional work part onsite earths

Factors determining the location and effectiveness of Operational earthing

Acceptable industry procedures

Personal protective equipment

T High voltage switching techniques

Preswitching checks

Switching operational procedures

Isolation procedures and proving deaddeenergised

Earthing procedures

Preswitching checks

Switching operational procedures

Emergency fault procedures

Energisation procedures

T 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 Operation of HV overhead switching or indicating devices encompassing

Identifying hazards assessing and controlling risks associated with HV switchgear operation

Systematic and defensive techniques

Mobile radio procedures

Double isolation procedures

fuses disconnect fuses load switching live line indicators capacitors reclosers sectionalisers underslung links airbreaks switches disconnects live line clamps phasing sticks phasing tester

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 authority permits

B

Any two of the following

Voltage detectors

Polarity testers

Phase rotation indicators

C

Any one of the following

LV links

LV bridges

LV fuses

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 performance of LV field switching to a given schedule

In addition to the resources listed above in Context of and specific resources for assessment evidence should show demonstrated competency working below ground 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 concurrent assessment recommendations for this unit


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 conducting of low voltage switching operations involving the operation of circuit breaking and isolation devices from a given switching schedule as it relates to low voltage distribution systems in field situations but also includes paralleling in accordance with the switching schedule.

Operation of circuit isolation devices associated with energy reticulation systems/networks is confined to low voltage systems in field situations which are performed in accordance with a switching schedule and established procedures.

Switching Control Officer refers to an appropriate person designated as such by regulations, codes or enterprise arrangements who is responsible for coordinating and directing switching activities in consultation with field operatives.

Switchgear may include Low Voltage fuses, Low Voltage links and bridges.

Specialist tools and devices may include Low Voltage detectors, Low Voltage polarity testers and Low Voltage phase rotation indicators.

Switching program/schedule refers to structure, switch or equipment number; locations; Low Voltage distributor, spur or feeder; outage times; works order/plan

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

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

Established procedures

Fall prevention

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