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NZQA registered unit standard 17811 version 5Page 1 of 4

Title Test single-phase and three-phase electrical appliances

Level 3 Credits 3

Purpose This unit standard is for use in the training of electrical servicetechnicians. It covers the regulatory safety testing and livetesting for voltage and current of single-phase and three-phaseappliances.

People credited with this unit standard are able to: demonstrate knowledge of regulatory requirements for

safety testing of electrical appliances; demonstrate knowledge of procedures for safety testing of

electrical appliances;

perform safety testing of single-phase and three-phaseappliances; and perform supply voltage and current testing of single-phase

and three-phase appliances.

Classification Electrical Engineering > Electrical Service Technicians

Available grade Achieved

Explanatory notes

1 This unit standard has been developed for learning and assessment off-job.

2 Competency under this unit standard does not entitle the candidate to legally performprescribed electrical work without adequate supervision until the candidate has beenregistered and licensed under the Electricity Act 1992.

3 ReferencesElectricity (Safety) Regulations 2010;Electricity Act 1992;Health and Safety in Employment Act 1992, and associated regulations;New Zealand Electrical Codes of Practice(Ministry of Business, Innovation andEmployment, ISSN 0114-0663);and their subsequent amendments and replacements.

4 DefinitionIndustry practice those practices, which competent practitioners within the industryrecognise as current industry best practice.

Outcomes and evidence requirements

The Skills OrganisationSSB Code 100401

New Zealand Qualifications Authority 2013

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Outcome 1

Demonstrate knowledge of regulatory requirements for safety testing of electricalappliances.

Evidence requirements

1.1 The circumstances under which appliances must be tested are identifiedaccording to current regulations and standards.

1.2 The tests to be carried out are stated according to current regulations andstandards.

1.3 The term electrically safe is explained in accordance with current regulationsand standards.

Outcome 2

Demonstrate knowledge of procedures for safety testing of electrical appliances.


2.1 Items to be inspected visually are identified in accordance with currentregulations and standards.

2.2 Protective earthing conductor (PEC) test is described and the limits stated inaccordance with current regulations and standards.

2.3 Insulation resistance tests are described and the limits stated in accordancewith current regulations and standards.

2.4 Polarity tests are described for single-phase and three-phase appliances inaccordance with industry practice.

2.5 Phase rotation test is described according to industry practice.

2.6 The test instruments to be used are stated for each type of test.

2.7 The reason why the insulation resistance test voltage for insulation tests mustbe at twice the normal voltage is stated.

2.8 The purpose for carrying out an installation is identified.

2.9 Action to be taken following testing is stated for compliant and for non-compliantappliances, in accordance with current regulations and standards.

Outcome 3

Perform safety testing of single-phase and three-phase appliances.

Range three single-phase appliances, one three-phase appliance.



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3.1 All precautions and procedures relating to occupational safety and health, andindustry safe working practices are followed.

3.2 Visual inspections are completed in accordance with current regulations and

standards.

3.3 Electrical tests are completed in accordance with current regulations andstandards.

Range tests earth continuity, polarity where appropriate and accessible,insulation resistance, phase rotation where appropriate.

3.4 Test results are recorded to meet industry requirements.

3.5 Actions resulting from inspection and testing with regard to compliant and non-compliant appliances are carried out in accordance with current regulations andstandards.

Outcome 4

Perform supply voltage and current testing of single-phase and three-phase appliances.

Range one single-phase appliance, one three-phase appliance.


4.1 All precautions and procedures relating to occupational safety and health, andindustry safe working practices are followed.

4.2 Testing demonstrates use of prove-test-prove procedures.

4.3 Voltage and current measurements are made and results recorded inaccordance with industry practice.

4.4 Measurements are confirmed as being within acceptable norms for the type ofappliance and in accordance with the manufacturers plate.

Planned review date 31 December 2014

Status information and last date for assessment for superseded versions

Process Version Date Last Date for Assessment

Registration 1 25 November 2000 31 December 2013

Revision 2 3 April 2001 31 December 2013

Revision 3 19 May 2004 31 December 2013

Review 4 20 June 2006 31 December 2013



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Process Version Date Last Date for Assessment

Rollover andRevision

5 20 September 2012 N/A

Consent and Moderation Requirements (CMR) reference 0003

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

Please noteProviders must be granted consent to assess against standards (accredited) by NZQA,before they can report credits from assessment against unit standards or deliver coursesof study leading to that assessment.

Industry Training Organisations must be granted consent to assess against standards byNZQA before they can register credits from assessment against unit standards.

Providers and Industry Training Organisations, which have been granted consent andwhich are assessing against unit standards must engage with the moderation system thatapplies to those standards.

Requirements for consent to assess and an outline of the moderation system that appliesto this standard are outlined in the Consent and Moderation Requirements (CMR). TheCMR also includes useful information about special requirements for organisations wishingto develop education and training programmes, such as minimum qualifications for tutorsand assessors, and special resource requirements.

Comments on this unit standard

Please contact The Skills Organisation at [email protected] you wish to suggestchanges to the content of this unit standard.


http://www.nzqa.govt.nz/framework/search/index.domailto:[email protected]://www.nzqa.govt.nz/framework/search/index.domailto:[email protected]

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