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Elements and Performance Criteria

  1. Prepare to the installation and maintenance of de-energised HV underground polymeric cables
  2. Carry out the installation and maintenance of de-energised HV underground polymeric cables
  3. Complete the installation and maintenance of de-energised HV underground polymeric cables

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 installing and maintaining deenergised HV underground polymeric cables

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

KSTCJA HV Polymeric underground cable jointing

KS01-TCJ27A HV Polymeric underground cable jointing

Evidence shall show an understanding of the jointing and termination of HV polymeric cable to an extent indicated by the following aspects

T Standards codes legislation supply authority regulations and or enterprise requirements pertaining to the jointing of HV underground polymeric cables

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

Characteristics of different types of cables and components

Purpose of stress control

T Applications of various tools and equipment for HV jointing

T Procedure for isolating high voltage underground cables encompassing

Method for proving safe to work

T Earthing procedures

T Techniques in jointing HV underground polymeric cable encompassing

Short circuit cores and seal cable

Straight through

Trifurcating

T Techniques in HV terminations encompassing

Pole top termination

Substationswitchgear termination

ABC termination

Telcon termination

T Procedures for repairing HV underground cables encompassing

Location of faults

Types of damage

Techniques to repairs to sheath

Techniques to repairs to core

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

HV polymeric cables

B

At least two of the following

Teeoff joints

Straight through joint

Parallel branch joint

Parallel joint

C

At least one of the following

Transformers

Ring main units

Chamber substations

D

At least one of the following

Busbartermination boxes

LinksFuses

Termination boxes

Control gear

Circuit breakers

E

At least two of the following

Resin filled boxes

Compound filled boxes

Polymeric tape

Heat shrink

slipon moulds

Prestretched polymeric

F

All of the following

Insulation resistance testers

Voltage detectors

G

All of the following

Cable identification devices

Cable spiking devices

H

At least two of the following

Mechanical connectors

Compression connectors

Lugs

I

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 installation and maintenance of deenergised underground HV polymeric cables

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

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

UETTDRCJA

UETTDRCJ26A

Install and maintain deenergised low voltage underground polymeric cables


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 installation and maintenance of de-energised high voltage underground polymeric cables and covers the jointing, terminating, repair and replacement of cables used in systems and circuits and the issuing/accepting of relevant permits.

Underground equipment may include links, fuses, ring main units, distribution fuse boxes, pad mount and ground transformers, chamber substations and busbar/termination boxes.

Test and recording equipment includes voltage detectors, cable identification equipment, cable spiking equipment and insulation resistance testers.

Jointing and terminating materials include compound and resin filled boxes, polymeric tape materials, polymeric heat shrink materials, "slip-on" moulded components and pre-stretched polymeric materials, compression and mechanical connectors

Jointing and terminating locations include circuit breakers, links, fuses, ring main units, distribution fuse boxes, pad mount and ground transformers, chamber substations and busbar/termination boxes.

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

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.

Testing procedures

Work clearance systems