NZQA registered unit standard
17811 version 6
Page 1 of 4
Title
Test single-phase and three-phase electrical appliances
Level
3
Purpose
Credits
3
This unit standard is for use in the training of electrical service
technicians. It covers the regulatory safety testing and live
testing for voltage and current of single-phase and three-phase
appliances.
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-phase
appliances; 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 perform
prescribed electrical work without adequate supervision until the candidate has been
registered and licensed under the Electricity Act 1992.
3
References
Electricity (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 and
Employment, ISSN 0114-0663);
and their subsequent amendments and replacements.
4
Definition
Industry practice – those practices, which competent practitioners within the industry,
recognise as current industry best practice.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
17811 version 6
Page 2 of 4
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of regulatory requirements for safety testing of electrical
appliances.
Evidence requirements
1.1
The circumstances under which appliances must be tested are identified
according to current regulations and standards.
1.2
The tests to be carried out are stated according to current regulations and
standards.
1.3
The term electrically safe is explained in accordance with current regulations
and standards.
Outcome 2
Demonstrate knowledge of procedures for safety testing of electrical appliances.
Evidence requirements
2.1
Items to be inspected visually are identified in accordance with current
regulations and standards.
2.2
Protective earthing conductor (PEC) test is described and the limits stated in
accordance with current regulations and standards.
2.3
Insulation resistance tests are described and the limits stated in accordance
with current regulations and standards.
2.4
Polarity tests are described for single-phase and three-phase appliances in
accordance 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 must
be 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-compliant
appliances, in accordance with current regulations and standards.
Outcome 3
Perform safety testing of single-phase and three-phase appliances.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
Range
17811 version 6
Page 3 of 4
three single-phase appliances, one three-phase appliance.
Evidence requirements
3.1
All precautions and procedures relating to occupational safety and health, and
industry 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 and
standards.
tests – earth continuity, polarity where appropriate and accessible,
insulation resistance, phase rotation where appropriate.
Range
3.4
Test results are recorded to meet industry requirements.
3.5
Actions resulting from inspection and testing with regard to compliant and noncompliant appliances are carried out in accordance with current regulations and
standards.
Outcome 4
Perform supply voltage and current testing of single-phase and three-phase appliances.
Range
one single-phase appliance, one three-phase appliance.
Evidence requirements
4.1
All precautions and procedures relating to occupational safety and health, and
industry 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 in
accordance with industry practice.
4.4
Measurements are confirmed as being within acceptable norms for the type of
appliance and in accordance with the manufacturer’s 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
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
17811 version 6
Page 4 of 4
Process
Version
Date
Last Date for Assessment
Review
4
20 June 2006
N/A
Rollover and
Revision
5
20 September 2012
N/A
Revision
6
15 January 2014
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 note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR 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 Skills Organisation reviewcomments@skills.org.nz if you wish to
suggest changes to the content of this unit standard.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016