NZQA registered unit standard
19950 version 4
Page 1 of 4
Title
Use test instruments and carry out electrical testing in the electricity
supply industry
Level
3
Purpose
Credits
3
This unit standard is for persons who are required to make
basic electrical measurements of voltage, current, resistance,
continuity, polarity, phasing, rotation, earth resistance and
insulation resistance.
People credited with this unit standard are able to: demonstrate
knowledge of electrical test instruments; and take electrical
measurements and indications.
Classification
Electricity Supply > Electricity Supply - Core Skills
Available grade
Achieved
Entry information
Recommended skills
and knowledge
Unit 18274, Demonstrate knowledge of electricity supply
networks, or demonstrate equivalent knowledge and skills.
Explanatory notes
1
This unit standard is intended for, but not restricted to, workplace assessment. The
range statements across the unit standard can be applied according to industry
specific equipment, procedures, and processes.
2
Safety of personnel and plant must be a priority throughout the assessment. If the
safety requirements are not met the assessment must stop and the candidate will be
assessed as not yet competent.
3
Performance and work practices in relation to the outcomes and evidence
requirements must comply with all current legislation, especially the Electricity Act
1992 and any subsequent amendments, and any regulations, codes of practice
recognised under that statute, Health and Safety in Employment Act 1992, the
Resource Management Act 1991, and their subsequent amendments, electricity
supply industry codes of practice and documented enterprise procedures. These
include, Safety Manual – Electricity Industry (SM-EI) (2004) Wellington: Electricity
Engineers’ Association.
A full list of current legislation and industry codes is available from:
Infrastructure Industry Training Organisation
PO Box 1245
Infrastructure Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
19950 version 4
Page 2 of 4
HAMILTON.
4
The phrase in accordance with industry requirements is implicit in all outcomes and
evidence requirements in this unit standard.
5
Definitions
Industry requirements include all asset owner requirements; manufacturers’
specifications; and enterprise requirements which cover the documented workplace
policies, procedures, specifications, business, and quality management requirements
relevant to the workplace in which assessment is carried out.
Asset owner refers to the owner of an electricity supply network that takes its point of
supply from Transpower NZ, and delivers electricity to industrial, commercial and
residential customers.
Asset owner standards are the approved documented work site methods for carrying
out work on an electrical supply network to the standard required by the asset owner.
6
Evidence for this unit standard can be based around the use of electrical test
instruments in distribution and transmission networks by Cable Jointers, Line
Mechanic Distribution and Line Mechanic Transmission.
7
Assessment of practical skills against the outcomes in this standard requires three
practical observations from three different workplace activities, one of which may be
conducted in a simulated electricity supply environment.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of the use of electrical test instruments.
Range
may include but is not limited to – voltmeter, ammeter, ohmmeter, multimeter,
clip-on ammeter, insulation tester, phase rotation meter, earth resistance tester,
high voltage (HV) proximity voltage detectors, earthing loop impedance tester,
ground earth resistance tester. Instruments may be analogue or digital;
evidence of four is required.
Evidence requirements
1.1
The types of test instruments used and their function within the electricity supply
industry are described.
1.2
The different electrical categories of test instruments are listed and described.
Range
1.3
I, II, III, IV.
The types of measurements taken by test instruments are physically identified
and described.
Range
low voltage (LV) and HV voltage measurements, current,
resistance, insulation resistance, earth resistance, loop
impedance, rotation, continuity, phasing and polarity (LV and HV).
Infrastructure Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
19950 version 4
Page 3 of 4
1.4
Consequences of incorrect use of test instruments are described in terms of
polarity reversal, use of wrong instrument, incorrect connection to the circuit,
incorrect selection of function or range.
1.5
Test instruments are set up and their connections to circuit under test are
sketched.
Outcome 2
Take electrical measurements and indications.
Range
voltage, current, resistance, insulation resistance, earth resistance, loop
resistance, rotation, phasing and polarity, instrument category;
evidence of three different types of measurements with different instruments is
required.
Evidence requirements
2.1
Test instrument is selected to match the type of measurement or indication
required.
2.2
Test instrument is visually inspected for safety prior to testing.
Range
may include but is not limited to, instrument condition, open circuit
fuse in fused lead, broken test lead, open circuit test lead;
evidence of inspection prior to use for each test measurement is
required.
2.3
Instrument is set for measurement by selection of function and range.
2.4
The ‘prove-test-prove’ method is demonstrated during testing.
2.5
Measurements are taken.
2.6
The results are recorded and analysed for validity.
Planned review date
31 December 2018
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
26 July 2003
31 December 2016
Rollover and
Revision
2
25 October 2007
31 December 2016
Review
3
19 November 2010
31 December 2016
Review
4
20 March 2014
N/A
Infrastructure Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
19950 version 4
Page 4 of 4
Consent and Moderation Requirements (CMR) reference
0120
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 Infrastructure Industry Training Organisation at
qualifications@infrastructureito.org.nz if you wish to suggest changes to the content of this
unit standard.
Infrastructure Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016