14346 version 2
28-Jun-16
1 of 8
ELECTRICITY SUPPLY - POWER
SYSTEM MAINTENANCE
Carry out routine inspection and
servicing on security services at
substations
level:
3
credit:
4
planned review date:
December 2006
sub-field:
Electricity Supply
purpose:
People credited with this unit standard are able to: prepare
for routine inspection and servicing on security services at
substations; carry out inspections; carry out test operations;
document inspection results and servicing needs; carry out
servicing; and complete documentation and return security
services at substations to service.
entry information:
Prerequisites: Unit 14287, Use and maintain test equipment
used in the high voltage electrical industry; Unit 14700, Apply
and remove safety measures in an electricity supply
environment; or demonstrate equivalent knowledge and
skills.
Core electrical theory is essential knowledge underpinning
the performances required by this unit standard.
accreditation option:
Evaluation of documentation and visit by NZQA and industry.
moderation option:
A centrally established and directed external moderation
system has been set up by the Electricity Supply Industry
Training Organisation.
 New Zealand Qualifications Authority 2016
14346 version 2
28-Jun-16
2 of 8
ELECTRICITY SUPPLY - POWER
SYSTEM MAINTENANCE
Carry out routine inspection and
servicing on security services at
substations
special notes:
1
This unit standard can be assessed 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, codes of practice recognised
under that statute, Health and Safety in Employment
Act 1992, Building Act 1991, Resource Management
Act 1991, and their subsequent amendments; Electricity
Regulations 1997, Safety Rules Electricity Industry:
Safety Rules for the New Zealand Electricity
Generation, Transmission and Distribution Industry.
(2000) Wellington: Electricity Engineers’ Association of
NZ (SR-EI), and General Safety Guide Electricity
Industry: Guidance on General Safety in the New
Zealand Electricity Generation, Transmission and
Distribution Industry. (2000) Wellington: Electricity
Engineers’ Association of NZ (GSH-EI); Electricity
Engineers’ Association Codes of Practice; Occupational
Safety and Health Approved Codes of Practice; New
Zealand Electrical Codes of Practice (NZECP). A full
list of current legislation and industry codes is available
from:
Electricity Supply Industry Training Organisation
PO Box 1245
HAMILTON.
3
Reference to terms, procedures, and specifications in
this unit standard may be taken as including
documented procedures and specifications relevant to
the workplace in which assessment is carried out.
 New Zealand Qualifications Authority 2016
14346 version 2
28-Jun-16
3 of 8
ELECTRICITY SUPPLY - POWER
SYSTEM MAINTENANCE
Carry out routine inspection and
servicing on security services at
substations
4
All work practices shall meet documented enterprise
maintenance standards. including the quality
management requirements, and including the
documentation of activities, events, and decisions.
5
The range of this unit standard is limited to conducting
routine inspections and servicing on security systems
such as uninterrupted power supply systems (UPS),
building security systems, security fencing systems, fire
detection and alarm systems, at electricity substations.
6
The following terms and abbreviations relate to this unit
standard:
VHF RT =
Very high frequency radio telephone
CCD
=
Closed circuit display
UPS
=
Uninterrupted power supply.
Elements and Performance Criteria
element 1
Prepare for routine inspection and servicing on security services at substations.
performance criteria
1.1
The scope of work and equipment to be serviced are identified and appropriate
documents selected.
Range:
may include but not limited to selecting the associated check lists,
inspection lists, client or manufacturer procedures, interpreting for
inspection and servicing for UPS, building security and security
fences, CCD and video recording, archive records and retrieval
system.
 New Zealand Qualifications Authority 2016
14346 version 2
28-Jun-16
4 of 8
ELECTRICITY SUPPLY - POWER
SYSTEM MAINTENANCE
Carry out routine inspection and
servicing on security services at
substations
1.2
The required entry authority and work control system for access to the
equipment are completed in compliance with client’s requirements.
Range:
1.3
may include but not limited to compliance to industry and client
requirements.
All safety measures are in place to eliminate, minimise, or control hazards
during the inspection and servicing.
Range:
may include but not limited to - inspection of the safe work zone,
the safe work area has been delineated, appropriate isolation from
in-service equipment.
element 2
Carry out inspections.
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 tested in accordance with manufacture’s operating
instructions.
Range:
2.3
may include but not limited to - hard wired systems, digital,
microwave, VHF RT communications, ethernet linked, hub
switcher, optic fibre or land line system.
may include but not limited to - internal battery supply status,
invertor supply system, internal self diagnostics.
Systems are started, and gauges and instruments are monitored and checked
to ensure compliance with manufacturer’s operating instructions.
Range:
may include but not limited to - power supply voltage, current.
 New Zealand Qualifications Authority 2016
14346 version 2
28-Jun-16
5 of 8
ELECTRICITY SUPPLY - POWER
SYSTEM MAINTENANCE
Carry out routine inspection and
servicing on security services at
substations
2.4
Systems are managed to maintain efficiency of the system operation and to
avoid damage to the system.
Range:
may include but not limited to - automatic power supply change
over system operates correctly, battery condition monitor operates
correctly, power supply voltage within limits, controls clean and
undamaged, indicator lamps operate correctly, all labels legible,
test point voltages are within limits, remote signalling or auto dial
works, sensors clean and operational, key pads and magnetic
latches work, video cameras and monitors functioning clearly,
available alarms function well, equipment is mounted securely.
element 3
Carry out test operations.
performance criteria
3.1
The equipment is test operated in accordance with the selected procedures.
Range:
3.2
The equipment is run for the prescribed period and is monitored for correct
operation.
Range:
3.3
may include but not limited to - pre start up checks, isolations,
selection of test operation mode.
may include but not limited to running for period till stable
operation conditions are reached.
Notes of key operating parameters are recorded and compared with design
performance specifications.
Range:
may include but not limited to - correct operation, data handling,
signal outputs consistent with monitored source.
 New Zealand Qualifications Authority 2016
14346 version 2
28-Jun-16
6 of 8
ELECTRICITY SUPPLY - POWER
SYSTEM MAINTENANCE
Carry out routine inspection and
servicing on security services at
substations
3.4
The equipment trial operation shut down is in accordance with selected
procedures.
Range:
may include but not limited to - termination of trial or test operation
mode, returning to normal surveillance and/or stand-by mode.
element 4
Document inspection results and servicing needs.
performance criteria
4.1
All the inspection and test operation results are analysed for identification of
servicing needs.
4.2
All servicing needs are identified to ensure security services are available and
have design capacity.
Range:
may include but not limited to - internal power supplies, defects
investigated, cleaning, connections secure, settings valid.
element 5
Carry out servicing.
performance criteria
5.1
All servicing needs are applied in compliance with the selected procedures.
Range:
may include but not limited to - cleaning, back-up battery charge
or replacement, worn components replaced, connections secured,
indication, accuracy corrections, data back-up reinstated.
5.2
All spares and materials used, and future special maintenance requirements,
are recorded as required by selected documentation.
5.3
All test equipment used during test operation is removed from the equipment.
 New Zealand Qualifications Authority 2016
14346 version 2
28-Jun-16
7 of 8
ELECTRICITY SUPPLY - POWER
SYSTEM MAINTENANCE
Carry out routine inspection and
servicing on security services at
substations
5.4
The equipment being worked on is inspected and checked for suitability for
return to service.
Range:
5.5
may include but not limited to - correct settings, active or on standby.
Report of ‘all clear’ of the equipment, and its return to service, is confirmed.
Range:
may include but not limited to - other work party members advised
of change in equipment status, the equipment returned to service
without incident.
element 6
Complete documentation and return security services at substations to service.
performance criteria
6.1
All inspection and servicing results are recorded in compliance with client or
enterprise requirements.
Range:
may include but not limited to - key indication monitored valves,
function results, system response time, signal valves, remote
signal results.
6.2
All special maintenance needs and future servicing data are reported.
6.3
Equipment is left in the approved ‘in-service’ state.
Range:
6.4
may include but not limited to - switches, valves, control and
sensors set ready for in-service operation, notification of
equipment back in service to responsible operator.
The report of inspection and servicing is completed and meets enterprise
requirements.
Range:
may include but not limited to - written report, electronic data
storage.
 New Zealand Qualifications Authority 2016
14346 version 2
28-Jun-16
8 of 8
ELECTRICITY SUPPLY - POWER
SYSTEM MAINTENANCE
Carry out routine inspection and
servicing on security services at
substations
Comments on this unit standard
Please contact the Electricity Supply Industry Training Organisation ceo@esito.org.nz if
you wish to suggest changes to the content of this unit standard.
Please Note
Providers must be accredited by the Qualifications Authority or a delegated interinstitutional body before they can register credits from assessment against unit standards
or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by the Qualifications Authority 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 providers wishing to
develop education and training programmes, such as minimum qualifications for tutors and
assessors, and special resource requirements.
This unit standard is covered by AMAP 0120 which can be accessed at
http://www.nzqa.govt.nz/site/framework/search.html.
 New Zealand Qualifications Authority 2016