14344 version 3
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Carry out routine inspection and servicing on substation emergency
services
Level
3
Credits
4
Purpose
People credited with this unit standard are able to: prepare for inspection and
servicing on substation emergency services; prepare auxiliary equipment and
systems for trial operation; carry out inspections; carry out test operations;
carry out servicing; document inspection and servicing; and return equipment
to stand-by service.
Subfield
Electricity Supply
Domain
Electricity Supply - Power System Maintenance
Status
Registered
Status date
27 April 1998
Date version published
20 June 2008
Planned review date
31 December 2009
Entry information
Prerequisites: Unit 14287, Use and maintain test
instruments used within the high voltage electrical
industry; Unit 14700, Apply and remove safety measures
in an electricity supply environment; Unit 12296, Apply
earths to and remove earths from electrical conductors,
plant and equipment; or demonstrate equivalent
knowledge and skills.
Core electrical theory is essential knowledge
underpinning the performances required in this unit
standard.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Electricity Supply Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0120
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
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Special notes
1
This unit standard can be assessed against in a workplace environment, or in a
training or educational environment if simulated equipment response and examples
are able to be provided, or in a combination of both environments.
2
Performance and work practices in relation to the elements and performance criteria
must comply with all current legislation, especially the Electricity Act 1992, and any
regulations and codes of practice recognised under that statute; the 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.
3
The phrase in accordance with industry requirements is implicit in all elements and
performance criteria in this unit standard.
4
‘Industry requirements’ include all industry and workplace documented policies,
procedures, specifications, and business and quality management relevant to the
workplace where assessment is carried out.
5
All work practices shall meet documented enterprise maintenance standards,
including the quality management requirements, and the documentation of activities,
events, and decisions.
6
The range of this unit standard is limited to carrying out routine inspection and
servicing on emergency service systems such as standby generators, fire pump
protection systems, and oil interceptor systems, at electricity supply substations.
7
The following terms and abbreviations relate to this unit standard:
AS/NZS = Australian/New Zealand Standard.
Elements and performance criteria
Element 1
Prepare for inspection and servicing on substation emergency services.
Performance criteria
1.1
The scope of work and equipment being serviced are identified and the required
documents are selected.
Range
may include but is not limited to associated ‘check and/or
inspection lists’ and procedures, manufacturer’s guidelines and
client servicing standards for - fire fighting, alarm, control and
pumping systems, auxiliary power generators, emergency lighting,
oil spill interceptor systems, fuel tank level gauge, AS/NZS
3000:2007 Electrical Installations Australian/New Zealand Wiring
Rules.
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14344 version 3
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1.2
The required work control system or approved equivalent is received.
1.3
All safety measures are in place to eliminate, minimise, or control hazards
during inspection and servicing.
Range
may include but is not limited to - inspection of the safe working
zone, the safe work area has been correctly delineated and
provides a safe work environment, appropriate isolation from inservice equipment or services.
Element 2
Prepare auxiliary equipment and systems for trial operation.
Performance criteria
2.1
Systems are started up and shut down in accordance with manufacturer’s
operating instructions.
Range
2.2
Prior to start up, systems are prepared and tested in accordance with
manufacturer’s operating instructions.
Range
2.3
may also include maker’s and/or client’s requirements.
Systems are managed to maintain efficiency of the system operation and to
avoid damage to the systems.
Range
2.5
may include but is not limited to maker’s and/or client’s
requirements.
Systems are started, and gauges and instruments are monitored and checked
to ensure compliance with manufacturer’s operating instructions.
Range
2.4
may also include maker’s and/or client’s requirements.
may include but is not limited to maker’s and/or client’s
requirements.
Safety procedures are followed during the start up process and operation of the
system.
Range
may include but is not limited to maker’s and/or client’s
requirements.
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Element 3
Carry out inspections.
Performance criteria
3.1
Data from monitoring systems relating to the start up or shut down are recorded
according to prescribed procedures.
Range
3.2
may include but is not limited to - power supply voltage, battery
voltage, load current, pressures, volume measures, water supply.
All inspection results are assessed for indication of servicing needs.
Range
may include but is not limited to - start up battery, low charge,
engine temperature status, cooling system, water supply, fuel
supply, corrosion wear, damage, motor mountings, fuel filters, air
filters, lubrication, electrical connections, cleanliness, remote
alarm, diagnostic tests, winding insulation resistance, motor
compression measured.
Element 4
Carry out test operations.
Performance criteria
4.1
The equipment is test operated in accordance with selected procedures.
Range
4.2
The equipment is run for the prescribed period.
Range
4.3
may include but is not limited to - running for period till stable
operating conditions are reached, and voltage, current pressure,
flow rate synchronisation.
Notes of key operating parameters are recorded and compared with equipment
design performance.
Range
4.4
may include but is not limited to - selecting trial start mode, pre
start up checks and isolations.
may include but is not limited to - supply load, current pressure,
motor temperature, ease of starting.
The equipment is shut down in accordance with equipment prescribed
procedures.
Range
may include but is not limited to - stopping the prime mover,
restoring switches and valves to normal standby status.
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4.5
All the inspection and test operation results are analysed for identification of
servicing needs.
Element 5
Carry out servicing.
Performance criteria
5.1
All servicing needs are applied to ensure emergency services availability, and
have design capacity.
Range
may include but is not limited to - start up battery recharge or
replace, cause of defects investigated cooling, fuel supplies,
synchronisation, load switching, activation, control, cleaning,
corrosion correction.
Element 6
Document inspection and servicing.
Performance criteria
6.1
All test operation, inspection and servicing results are documented in
compliance with selected documentation.
Range
6.2
may include but is not limited to - key indication and monitored
valves, function results, system response time, supply valves,
remote signal results.
All spares, materials used and future special maintenance requirements are
recorded as required by selected documentation.
Range
may include but is not limited to - client’s requirements, service
contract requirements.
Element 7
Return equipment to stand-by service.
Performance criteria
7.1
Equipment is left in the approved stand-by state ready for service.
Range
7.2
may include but is not limited to - all switches, valves, controls and
sensors set ready for service, notification of the end of testing
operation and servicing provided to responsible operator.
The dates for next servicing of systems are recorded.
Range
may include but is not limited to reporting when the next scheduled
service is required.
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7.3
The equipment is formally reported as ‘returned to service’ or ‘stand-by’ status.
Range
may include but is not limited to - reporting all clear and return of
work access permit or recognised equivalent, other work party
staff advised of the equipment return to service, equipment
returned to service without incident.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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 Electricity Supply Industry Training Organisation info@esito.org.nz if
you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016