NZQA registered unit standard
28890 version 1
Page 1 of 4
Title
Demonstrate knowledge of sampling, testing, treatment and spill
management of substation insulating and hydraulic oils
Level
4
Credits
5
Purpose
People credited with this unit standard are able to demonstrate
knowledge of: insulating and hydraulic oils used in a substation;
types of oil tests; insulating oil treatment processes and
handling practices; the oil sampling process; the acceptance
and reporting procedure; and oil spill management.
Classification
Electricity Supply > Electricity Supply - Power System
Maintenance
Available grade
Achieved
Explanatory notes
1
This unit standard is intended for assessment off-job. The range statements and
evidence requirements across the unit standard can be applied according to industry
specific equipment, procedures, and processes as applied in the electricity supply
industry.
2
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 the latest version of Safety Manual – Electricity Industry (SM-EI) (Wellington:
Electricity Engineers’ Association.
A full list of current legislation and industry codes is available from:
Infrastructure Industry Training Organisation
PO Box 1245
Hamilton 3240.
3
The phrase in accordance with industry requirements is implicit in all outcomes and
evidence requirements in this unit standard.
4
Definitions
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.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28890 version 1
Page 2 of 4
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.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of insulating and hydraulic oils used in a substation.
Evidence requirements
1.1
Commonly used oils are identified.
Range
1.2
insulating, hydraulic.
Properties and test specification for insulating and hydraulic oils are explained.
Outcome 2
Demonstrate knowledge of types of oil tests used for insulating and hydraulic oils.
Evidence requirements
2.1
Commonly used tests for insulating and hydraulic oils are explained.
Range
dielectric, acidity, power factor, interfacial and dissolved gas
analysis, hydrogen test.
Outcome 3
Demonstrate knowledge of insulating oil treatment processes and handling practices.
Evidence requirements
3.1
Oil treatment processes are described.
Range
3.2
filtration, reconditioning, reclamation, regeneration.
Oil removal, treatment and replacement handling practices are described.
Range
Oil handling equipment, oil treatment units, earth bonding.
Outcome 4
Demonstrate knowledge of the insulating and hydraulic oil sampling process.
Evidence requirements
4.1
Procedure for oil sampling, and preparation of sample for testing, is described.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
4.2
28890 version 1
Page 3 of 4
Hazards in oil sampling are identified.
Outcome 5
Demonstrate knowledge of the acceptance of oil test results, and reporting documentation,
to required standards.
Evidence requirements
5.1
Test results are interpreted and analysed for compliance to standards.
may include but are not limited to – international standards,
previous results, asset owner’s standards.
Evidence of one test result is required.
Range
5.2
Requirement for compliance or noncompliance reporting documentation is
described.
Outcome 6
Demonstrate knowledge of reports and planning for oil spill management.
Evidence requirements
6.1
Reports and planning for spill management are described.
Range
Oil Spill Management and Contingency Plan (OSMCP)
Planned review date
31 December 2020
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
17 March 2016
N/A
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.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28890 version 1
Page 4 of 4
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 ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016