9579 Carry out cathodic protection system troubleshooting survey in the gas transmission industry

9579 version 4

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Carry out cathodic protection system troubleshooting survey in the gas transmission industry

Level4

Credits4

PurposeThis unit standard is for people working, or intending to work, in the gas transmission industry.

People credited with this unit standard are, in the gas transmission industry, able to: demonstrate knowledge of cathodic protection system troubleshooting equipment used; use cathodic protection system troubleshooting equipment; locate and use documentation and reporting criteria for a cathodic protection troubleshooting survey; and report the results of the cathodic protection troubleshooting survey.

SubfieldGas Industry

DomainGas Transmission Operations

StatusRegistered

Status date22 May 2009

Date version published22 May 2009

Planned review date31 December 2014

Entry informationOpen.

AccreditationEvaluation of documentation and visit by NZQA and industry.

Standard setting body (SSB)NZ Motor Industry Training Organisation (Incorporated) (MITO)

Accreditation and Moderation Action Plan (AMAP) reference0114

This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.

Special notes

1Performance of the elements of this unit standard must comply with relevant site requirements, and the following legislation and standards:

Health and Safety in Employment Act 1992;

Resource Management Act 1991;

AS 2832.2-2003, Cathodic protection of metals Compact buried structures;

BS 7361-1:1991, Cathodic protection Code of practice for land and marine applications;

NACE TM 0169-2000 Laboratory Corrosion Testing of Metals, a National Association of Corrosion Engineers Standard (North America).

2Definition

Company procedures refer to the documented methods for performing work activities and include health and safety, environmental, quality management, and site requirements. They may refer to manuals, codes of practice, or policy statements.

Elements and performance criteriaElement 1

Demonstrate knowledge of cathodic protection system troubleshooting equipment used in the gas transmission industry.

Performance criteria

1.1Cathodic protection system troubleshooting equipment is described in accordance with manufacturers instructions.

1.2Site cathodic protection system troubleshooting equipment is located, and its use is explained in accordance with manufacturers instructions.

Rangeflange isolation tester, direct current voltage gradient meters, half-cells, data logger, cathodic protection system interrupter, pipe locater, multi-meter, current measuring swain clamp.

1.3Cathodic protection system troubleshooting equipment functions are explained to identify the type of information relayed in accordance with company procedures.

Element 2

Use cathodic protection system troubleshooting equipment in the gas transmission industry.

Performance criteria

2.1Safety procedures relating to troubleshooting, and system interruption and isolation, are used in accordance with company procedures.

2.2Conditions are assessed to determine the need to use cathodic protection system troubleshooting equipment.

Rangeflange isolation tester, direct current voltage gradient meters, half-cells, data logger, cathodic protection system interrupter, pipe locater, multi-meter, current measuring swain clamp.

2.3Fault conditions and types are identified to determine equipment requirements.

Rangeelectrical isolation problems, coating problems, broken wire, cathodic protection system interruptions.

2.4Methods of cathodic protection system interruption and isolation are used in accordance with company procedures.

2.5Cathodic protection system troubleshooting equipment is selected in accordance with company procedures and job requirements.

2.6Cathodic protection system troubleshooting equipment is operated in accordance with company procedures and manufacturer's instructions.

2.7Potential hazards of incorrect application and operation of equipment and systems are explained in accordance with manufacturer's instructions and company procedures.

Element 3

Locate and use documentation and reporting criteria for a cathodic protection troubleshooting survey in the gas transmission industry.

Performance criteria

3.1Specified documentation related to the operation of cathodic protection system troubleshooting equipment is located, and is used in accordance with company procedures and manufacturer's instructions.

Rangetest certificates, certification, standards for safety, standards for in service safety inspection and testing of equipment, identification tags, labels.

3.2General site equipment documentation and information are located, and are used in accordance with company procedures.

3.3International cathodic protection standards and reporting criteria are used in accordance with company procedures.

RangeBritish standards, Australian standards, North American corrosion engineer standards.Element 4

Report the results of the cathodic protection troubleshooting survey in the gas transmission industry.

Performance criteria

4.1Corrections to primary data of the cathodic protection troubleshooting survey are made in accordance with company procedures.

4.2Results of the cathodic protection troubleshooting survey are calculated from primary data in accordance with company procedures.

4.3Deviations from the expected range of results are investigated and actions are taken in accordance with company procedures.

4.4The report includes all information gathered in the cathodic protection troubleshooting survey in accordance with company procedures.

4.5Outcomes of the analysis are reported and conclusions are drawn in accordance with international cathodic protection standards and reporting criteria.

RangeBritish standards, Australian standards, North American corrosion engineer standards.Please note

Providers must be accredited by NZQA, or an inter-institutional body with delegated authority for quality assurance, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.

Industry Training Organisations must be accredited by NZQA before they can register credits from assessment against unit standards.

Accredited providers and Industry Training Organisations assessing against unit standards must engage with the moderation system that applies to those standards.

Accreditation requirements and an outline of the moderation system that applies to this standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The AMAP also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.

Comments on this unit standard

Please contact the NZ Motor Industry Training Organisation (Incorporated) (MITO) info@mito.org.nz if you wish to suggest changes to the content of this unit standard.

SYMBOL 211 \f "Symbol" New Zealand Qualifications Authority 2013