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Elements and Performance Criteria

  1. Prepare and plan for pigging gas distribution pipelines
  2. Note: This includes setting up of PIG launcher and receiver for new or decommissioned pipelines
  3. Launch, and recover distribution pipeline PIG
  4. Re-establish distribution pipeline to operational conditions and notify of completion of work

Required Skills

This describes the required skills and knowledge and their level required for this unit

Evidence shall show that knowledge has been acquired of safe working practices for the launching and recovering of a pig in a gas distribution pipeline

All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies The extent of the Required Skills and Knowledge required is provided below It forms an integral part of this unit

KSGA PIG launch and recovery

Evidence shall show an understanding of the assembly launch and recovery of PIGs in gas distribution pipelines to ensure the pipeline is clean and dry with no obstructions prior to commissioningin accordance with relevant legislation standards codes and established procedures to an extent indicated by the following aspects

T Pipeline preparation

Types of pipeline materials including steel plastic etc

New pipelines

Traps launchers and receivers installed

Water and waste disposal requirements

Directional gatesbars installation

PIG pushing agent water or air requirements

Pipeline Pigging sequence

Additional preparation for decommissioned pipelines

Purging

Descaling

T Documentation and communication for Pigging

T Types of PIGs and applications

T OH amp S and environmental requirements for using PIGs

Risk assessment

Hazards including high water and air pressurevelocity

Hazardous and flammable materials

Noise

T Pigging a main pipeline

Insertion

Monitoring and communication

Checking the cleanlinessdryness of the pipe

Capture

Traps

Dangers

Waste disposal

Evidence Required

The Evidence Guide forms an integral part of this Competency Standard Unit and shall be used in conjunction with all components 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 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 UEG 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 Workplace Health and SafetyOccupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the Performance Criteria and range

Apply sustainable energy principles and practices as specified in the Performance Criteria and range

Demonstrate an understanding of the required skills and knowledge 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

Demonstrate an appropriate level of employability skills

Conduct work observing the relevant antidiscrimination legislation regulations polices and workplace procedures

Demonstrate performance across a representative range of contexts from the prescribed items below

Launch and recover PIGs in a gas distribution pipeline as described in Range Statement and including

Range of toolsequipmentproceduresworkplace

Group No

The minimum number of items on which skill is to be demonstrated

Item List

A Preparation procedures

All

Interpret technical drawings and symbols

Ensure emergency response procedures in place

Communicate with other authorities and stakeholders

Carry out job safety analysis

Obtain work permit if required

B Pigging procedures

All

Prepare pig trap for launch

Connections to compressors

Prepare trap for receiving

Determine volume of water compressor requirements from charttable

Install disc pig

Install foam pig

Carry out pigging operation

Recover pig

C Unplanned event

At least one occasion

Apply procedures protocols to deal 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

For example identifying stuck or lost pigs procedures for locationclearing

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

WHSOHS policy and work procedures and instructions

Suitable work environment facilities equipment and materials to undertake actual work as prescribed by this Competency Standard Unit

Appropriate environmental regulation and work practices

Appropriate organisational requirements

Appropriate work environment equipment and tools

These should be part of the formal learningassessment environment

Assessment of this competency must be undertaken in an actual workplace Assessment must also integrate the employability skills

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 Required Skills and Knowledge 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 required skills and knowledge described in this unit

Concurrent assessment and relationship with other units

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 with allied Competency Standard Units where listed

UEGNSGA

UEGNSG132A

Carry out basic work activities in a gas industry work environment

UEGNSGA

UEGNSG140A

Apply with environmental policies and procedures in the utilities industry

UEGNSGA

UEGNSG134A

Establish a utilities infrastructure work site

BSBFLMB

BSBFLM312B

Contribute to team effectiveness

BSBFLMC

BSBFLM303C

Contribute to effective workplace relationships


Range Statement

9)This relates to the competency standard unit 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 the launch and recovery of PIGs in new or decommissioned gas distribution main pipelines. This includes the following activities:

Prepare pig trap for launch

Connections to compressors

Prepare trap for receiving

Determine volume of water /compressor requirements from chart/table needed

Install disc pig

Carry out pigging operation

Install foam pig

Carry out pigging operation

Recover pig

Pressure test pipeline

Note: The de-commissioning is covered by UEGNSG203B .

The following constants and variables included in the Element/Performance Criteria in this unit are fully described in the Definitions Section of this volume and form an integral part of the Range Statement of this unit:

Equipment