UEGNSG401B
Maintain cathodic protection systems

1) Scope:1.1) DescriptorThis Unit covers maintaining of cathodic protection (CP) to prevent corrosion in steel pipelines. The competency standard covers the types of cathodic protection faults, the applicable Australian Standards as well as the location and the type of electrical equipment used and the testing procedures and related maintenance requirements.

Application

2)

This competency standard shall apply to any basic and safe work site where Gas Industry operations occur. It could also apply, where applicable to other workplaces in the electricity supply industry (transmission and distribution and generation), the electrotechnology industry and the water industry, subject to all Occupational Health and Safety and duty of care requirements being met for the workplace.


Prerequisites

Prerequisite Unit(s)

4)

Competencies

4.1)

Granting of competency in this unit shall be made only after competency in the following unit(s) has/have been confirmed:

Nil

Literacy and numeracy skills

4.2)

Participants are best equipped to achieve this unit if they have reading, writing and numeracy skills indicated by the following scales. Description of each scale is given in Volume 2, Part 3 ‘Literacy and Numeracy’

Reading

3

Writing

3

Numeracy

3


Elements and Performance Criteria

ELEMENT

PERFORMANCE CRITERIA

1

Prepare and plan for maintenance activities

1.1

Cathodic protection system maintenance activity is identified and confirmed according to the work schedule(s), drawings, plans, requirements and established procedures

1.2

Readings from cathodic protection monitoring equipment and galvanic anode beds are taken at regular intervals and data collected in accordance with

1.3

Relevant work schedules and requirements are communicated to all persons and identified for all work sites

1.4

OHS, environmental and sustainable energy policies and procedures related to the maintaining of cathodic protection systems are obtained and confirmed for the purposes of the work performed and communicated

1.5

Work is prioritised and sequenced following consultation with others for completion within acceptable timeframes and in accordance with established procedures

1.6

Risk control measures for identified hazards are prioritised, implemented and monitored against the work schedule

1.7

Relevant work permits are obtained to access and perform work according to requirements and established procedures

1.8

Resources including persons, equipment, tools and personal protective equipment required for the job are identified, scheduled and obtained and confirmed in working order

1.9

Relevant persons at worksite are confirmed to be current in First Aid and other related work procedures according to requirements

1.10

Liaison and communication issues with authorised persons, authorities, clients and land-owners are resolved to carry out work where necessary

1.11

Site is prepared according to the work schedule and to minimise risk and damage to property, commerce and individuals in accordance with established procedures

1.12

Persons participating in the work, including plant operators and contractors are fully briefed and respective responsibilities confirmed where applicable in accordance with established procedures

1.13

Road signs, barriers and warning devices are positioned in accordance with requirements including traffic management plans

2

Maintain and adjust cathodic protection system equipment

2.1

OHS policies and procedures and safe work practices are followed to eliminate or minimise incidents and hazards

2.2

Lifting, climbing, working in confined spaces, excavations, trenches, or aloft, and use of power tools, techniques and practices are safely followed and currency according to requirements confirmed

2.3

Essential Knowledge and Associated Skills for maintaining of cathodic protection systems are applied to ensure completion in an agreed timeframe and to quality standards with a minimum of waste according to requirements

2.4

Cathodic protection system is maintained at maximum efficiency and the maintaining of cathodic protection systems is carried out in accordance with the work schedule and to established procedures

2.5

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

2.6

Unplanned events in the maintaining of cathodic protection systems is undertaken with the scope of established procedures

2.7

Known solutions to a variety of problems are applied using Essential Knowledge and Associated Skills

2.8

Data is collected and interpreted and ongoing checks of quality of the work are undertaken in accordance with given instructions and established procedures

3

Re-establish system and notify completion of work

3.1

System is re-established in order to meet pipeline system operational requirements and the work undertaken is checked against work schedules for conformance with requirements, anomalies are reported in accordance with established procedures

3.2

Accidents and injuries are reported in accordance with established procedures where applicable

3.3

Work site is rehabilitated, cleaned up and made safe in accordance with given instructions and established procedures

3.4

Tools, equipment and any surplus resources and materials are, where appropriate, cleaned, checked and returned to storage in accordance with established procedures

3.5

Relevant work permit(s) are signed off and equipment is returned to service in accordance with requirements

3.6

Work completion records, reports as installed/modified drawings and documentation and information are finalised and processed and appropriate persons notified

Required Skills

8) This describes the essential skills and knowledge and their level, required for this unit.

Evidence shall show that knowledge has been acquired of safe working practices for maintaining cathodic protection systems.

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

KS01-G401B

Cathodic protection system maintenance

G 3.4.1

Understanding corrosion processes

Evidence shall show an understanding of corrosion as it applies to cathodic protection on a Gas Industry pipeline, indicated by the following:

understanding corrosion processes.

G 3.4.2

Interpreting system design, planning and operation

Evidence shall show an understanding of interpreting system design, planning and operation as it applies to cathodic protection on a Gas Industry pipeline, indicated by the following:

understanding system design, planning and operation including safe design principles.

G 3.4.3

Use and understand cathodic protection systems

Evidence shall show an understanding of how to use the systems required in relation to cathodic protection on a Gas Industry pipeline, indicated by the following:

interpret system design, planning and operation

using CP system in relation to other services

undertaking basic electrical measurement and adherence of electrical principles

understanding of coating requirements and their purpose.

G 3.4.4

Select and use appropriate tools and equipment for cathodic protection

Evidence shall show an understanding of the requirements to select and use the appropriate tools and equipment for cathodic protection, indicated by the following:

testing and inspection methods and their appropriate applications

appropriate use of test and inspection equipment.

G 3.4.5

Interpreting topographical and geographical maps and information

Evidence shall show an understanding of the requirements to interpret topographical and geographical information and maps for cathodic protection, indicated by the following:

interpreting topographical and geographical maps and information.

Evidence Required

9) The Evidence Guide forms an integral part of this 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

9.1)

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 Industry’s 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 substance/material 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 instruments are included for Assessors in the Assessment Guidelines of this Training Package.

Critical aspects of evidence required to demonstrate competency in this unit

9.2)

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 — UEG11’. Evidence shall also comprise:

A representative body of work performance demonstrated within the timeframes typically expected of the discipline, work function and industrial environment. In particular this will 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

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

Demonstrate an understanding of the essential knowledge and associated skills as described in this unit to such an extent that the learner’s 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 Anti Discrimination legislation, regulations, polices and workplace procedures

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

Range of tools/equipment/procedures/workplace

Group No

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

Item List

A

All

Types of faults:

Coating damage/deterioration

Interference from other systems

Anode not working

Equipment fault/failure

B

At least 4

Checks and tests on CP systems:

Potential surveys

On/off potential surveys

Coating defect assessment surveys (DCVG method, Peason technique/method, over pipeline potential method)

Loop impedance testing

Anode bed testing

Soil resistivity testing

Interference testing

C

All

Knowledge of relevant Australian Standards or their equivalents:

AS 2885

AS 2430

AS 1768

AS 1596

AS 1697

AS 2832.1

AS 3000

AS 2239

AG 603

AS 2865

D

All

Interpreting cathodic protection data system surveys and readings

Locating and repairing faults

Procedures for coating surveys

Checking and maintaining potentials

E

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

9.3)

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 work as prescribed by this Competency Standard Units.

Appropriate environmental regulation and work practices.

Appropriate organisational requirements.

Appropriate work environment, equipment and tools.

In addition to the resources listed above, in Context of and specific resources for assessment, evidence should show demonstrated competency in maintaining cathodic protection systems.

Assessment of this competency must also be undertaken in either an actual workplace or under a simulated work environment. Assessment must also integrate the employability skills.

Method of assessment

9.4)

This Unit shall be assessed by methods given in Volume 1, Part 3 ‘Assessment Guidelines’.

Note: Competent performance with inherent safe working practices is expected in the Industry to which this Competency Standard Units applies. This requires that the specified Essential Knowledge and Associated Skills are assessed in a structured environment which is primarily intended for learning/assessment 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

9.5)

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.

UEGNSG102B

Carry out work activities in a utilities industry work environment

UEGNSG104B

Comply with environmental policies and procedures

UEGNSG105B

Establish the work site

BSBFLM312B

Contribute to team effectiveness

BSBFLM303C

Contribute to effective workplace relationships


Range Statement

10) 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 maintaining cathodic protection systems.

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:

Types of CP faults

Applicable Australian standards/legislation

Location

Electrical equipment

Types of checks and tests

Test equipment

Components and systems

Relevant documentation

Relevant authorities and other stakeholders/authorities

Location for maintaining CP systems

Drawings and specifications


Sectors

Not applicable.


Employability Skills

5)

This unit contains Employability Skills

The required outcomes described in this unit of competency contain applicable facets of Employability Skills. The Employability Skills Summary of the qualification in which this unit of competency is packaged will assist in identifying Employability Skill requirements.


Licensing Information

License to practice

3)

The skills and knowledge described in this unit are not subject to licence regulation other than those directly related to Occupational Health and Safety, gas/electricity/water industry safety and compliance, industrial relations, environmental protection, telecommunications, anti discrimination and training. Commonwealth, State/Territory or Local Government legislation and regulations may exist that limits the age of operating certain equipment.