NZQA Expiring unit standard
14280 version 5
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Title
Carry out acceptance and maintenance tests on single input
protection relays
Level
4
Credits
4
Purpose
People credited with this standard are able to: prepare to test
single input protection relays; set up test equipment; carry out
maintenance and/or commissioning tests; interpret test results
and complete compliance documentation; and place in, or
return equipment, to service.
Classification
Electricity Supply > Electricity Supply - Testing
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 14287, Use and maintain test instruments used within the
high voltage electrical industry, 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 regulations and codes of practice recognised under that statute;
Health and Safety in Employment Act 1992; and the Resource Management Act
1991. Electricity supply industry codes of practice and documented industry
procedures include the Safety Manual – Electricity Industry (SM-EI) (2004)
Wellington: Electricity Engineers’ Association. A full list of current legislation and
industry codes is available from the Electricity Supply Industry Training Organisation,
PO Box 1245, Hamilton.
4
Practical exercises should be used for assessment wherever possible.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
14280 version 5
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5
The range of this unit standard is limited to carrying out acceptance and maintenance
tests on single input protection relays, normally applied initially in a test laboratory
situation, and for maintenance at electricity supply substations.
6
The following abbreviations relate to this unit standard:
Hz = hertz
CT = current transformer.
Outcomes and evidence requirements
Outcome 1
Prepare to test single input protection relays.
Evidence requirements
1.1
The technical specifications for single input protection relays are selected and
interpreted.
Range
1.2
The test specifications and performance standards for protection relays are
selected.
Range
1.3
may include but is not limited to – voltage tests, current tests, time,
temperature, flow, frequency relay characteristics, curves, inverse,
extreme inverse, definite time.
The selected test circuit and inspection requirements are identified in terms of
manufacturer’s and client testing requirements.
Range
1.4
may include but is not limited to – relay type ratings for under or
overvoltage, earth fault, overcurrent, time delay, residual earth
leakage, Hz, relay, relevant drawings for electronic and electromechanical relays.
may include but is not limited to – voltage tests, current tests, time,
temperature, flow, frequency relay characteristics, curves, inverse,
extreme inverse, definite time, relay type ratings for under or over
voltage, earth fault, overcurrent, time delay, residual earth
leakage, Hz, relay, relevant drawings for electronic and electromechanical relays;
evidence required – must be able to competently prepare eight
tests.
The extent of main equipment to be released from service is identified and
equipment release requested for work access.
Range
Infrastructure ITO
SSB Code 101813
includes but is not limited to – completing all requests in a timely
and correct manner.
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
14280 version 5
Page 3 of 5
Outcome 2
Set up test equipment.
Evidence requirements
2.1
Access permit or its approved equivalent is obtained and the safe work zone
identified.
Range
2.2
The selected circuit and test equipment is correctly assembled ready for testing.
Range
2.3
may include but is not limited to – previous test results, history
cards, manufacturers, information and manuals.
The status of the test instrument calibrations is verified as required by test
procedures.
Range
2.5
may include but is not limited to – manufacturer guidelines, client
operating and maintenance standards and test procedures,
inspection of test leads for damage.
The selected test and inspection procedures are available for use during
testing.
Range
2.4
may include but is not limited to – placing boundary markers
around the work area, identification of authorisation safety
features.
includes but is not limited to – calibration certificates are valid,
accuracy of settings.
Any hazards associated with the testing are identified and safety measures are
prepared and implemented.
Range
hazards may include but are not limited to – charged capacitors,
auxiliary services, risk of trip for other equipment and alarms,
control circuits;
safety measures include but are not limited to – discharged
capacitors, isolated auxiliary services, identified risk of trip for
other equipment and alarms, earthed open circuit CT.
Outcome 3
Carry out maintenance and/or commissioning tests.
Evidence requirements
3.1
The tests are carried out using the selected procedures and following
commissioning plan, or as specified by the client.
Infrastructure ITO
SSB Code 101813
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NZQA Expiring unit standard
Range
3.2
14280 version 5
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may include but is not limited to – voltage tests, current tests, time,
temperature, flow, frequency relay characteristics, curves, inverse,
extreme inverse, definite time;
evidence required – must be able to competently perform eight
tests.
The results of the tests and inspections are recorded as required by client
documentation.
Outcome 4
Interpret test results and complete compliance documentation.
Evidence requirements
4.1
The documented test results are interpreted for compliance with the standard
required.
Range
4.2
may include but is not limited to – reference to maker’s
requirements, client standards, previous test result records,
ensuring results are within given specifications.
Compliance or non-compliance documentation is completed for each unit
tested.
Range
may include but is not limited to – manufacturer’s requirements,
client documentation requirements, recommendations for remedial
work, record of adjustments made.
Outcome 5
Place in, or return equipment, to service.
Evidence requirements
5.1
The equipment being tested is safely placed in, or returned to service.
Range
includes but is not limited to ensuring – all test equipment has
been removed, all re-connection work is completed, checked and
secure, all equipment is left in a state ready for service, the
equipment is returned to service without incident.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
14280 version 5
Page 5 of 5
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
27 April 1998
31 December 2016
Revision
2
11 February 2004
31 December 2016
Review
3
19 May 2006
31 December 2016
Review
4
8 December 2011
31 December 2016
Rollover
5
17 October 2013
31 December 2016
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.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016