16280 version 4
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Compile and action switching plans to maintain electricity supply power
network security
Level
4
Credits
9
Purpose
People credited with this unit standard are able to: plan network operating;
compile a switching plan; action switching plan; and review operating actions.
Subfield
Electricity Supply
Domain
Electricity Supply - Power System Management
Status
Registered
Status date
16 April 2010
Date version published
16 April 2010
Planned review date
31 December 2014
Entry information
Prerequisite: Unit 16285, Plan for scheduled work on
electricity supply power system equipment, or
demonstrate equivalent knowledge and skills.
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.
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.
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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) 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,
Waikato Mail Centre, Hamilton 3240.
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 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.
5
Reference to terms, procedures, and specifications in this unit standard may be
taken as including industry documented procedures and specifications relevant to the
workplace in which assessment is carried out.
6
The following terms and abbreviations relate to this unit standard:
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 procedures are the approved documented work site methods for
carrying out work on an electrical supply network to the standard required by the
asset owner.
Network configuration status is the shape and external form of the electrical network
generated by the arrangement and inter-relationship that exists between the various
power systems route ways, circuits, electrical components, plant, and equipment.
Switching plan (sometimes referred to as an operating order) is a document that
outlines the sequence of work steps, switching procedures, and instructions required
to carry out maintenance, replacement, and/or repair of equipment on an electrical
network.
The log – the collection of log books, log sheets, completed authorisation forms, and
other records including electronic and tape, which together form a complete record of
operating events in a station or operating area.
Work approval includes but is not limited to – work permits, access permits, test
permits, work authority, assurances.
SCADA – Supervisory Control and Data Acquisition system used for control,
indication, and monitoring purposes.
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Elements and performance criteria
Element 1
Plan network operating.
Performance criteria
1.1
The nature of operating to be carried out is identified in consultation with others.
Range
1.2
Equipment required to carry out the operating is identified.
Range
1.3
may include but is not limited to – log entries, access permits.
Register of competent operators is checked to ensure contractor complies with
work competency criteria of asset owner.
Range
1.7
may include but is not limited to – consider the impact on the rest
of the network, isolation zone for compliance with industry safety
rules.
Authorisations and approvals to carry out work on the network are documented.
Range
1.6
may include but is not limited to – rolling release timeframe, asset
maintenance schedule.
Requests to release network equipment from the system for maintenance
and/or repair are interpreted in accordance with job/work specification.
Range
1.5
may include but is not limited to – prepared switching plan, earths,
special tools, personal protective equipment.
Requests to carry out network operating are received within a set timeframe
prior to commencing work.
Range
1.4
may include but is not limited to – consultation with network
release coordinator, system controllers, contractor, system
operator, network operations manager, project manager.
may include but is not limited to – Authorisation Holder’s
Certificate (AHC) register, competency certificates register,
approved contractor lists.
Work is assigned a reference number.
Range
may include but is not limited to – planned work schedule, works
orders, release numbers.
 New Zealand Qualifications Authority 2016
16280 version 4
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Element 2
Compile a switching plan.
Performance criteria
2.1
Network diagrams are examined and any changes to the network configuration
status are incorporated in the steps of the operating order.
Range
may include but is not limited to – diagrams may include single line
diagrams, SCADA, mimic displays.
2.2
Switching plan is compiled within set timeframe.
2.3
Each step of the switching plan is clear, concise, and unambiguous.
Range
2.4
may include but is not limited to – correct equipment identification,
only relevant equipment referred to, can only be interpreted in one
way for taking operating actions.
Terminology and abbreviations used are in accordance with industry practices
and asset owner guidelines.
Range
may include but is not limited to – industry rules and guidelines.
2.5
Sequence of switching plan enables objective to be carried out with minimum
number of operations.
2.6
Switching plan is approved.
2.7
Known safety hazards on site are documented and reported to affected parties.
Range
2.8
may include but is not limited to – reporting to contractor, system
operator, network operations management.
Switching sequences and operating procedures required are arranged with the
contractor and documented.
Element 3
Action switching plan.
Performance criteria
3.1
Switching is carried out.
Range
may include but is not limited to – operating orders, SCADA.
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3.2
Operating steps are actioned in accordance with sequence specified in
switching plan.
Range
3.3
Time of initiating and completion of each operating step is documented on
switching plan.
Range
3.4
may include but is not limited to – system controller, system
operator, contractor, release system coordinator.
Communication links with contractor and/or operator are maintained at agreed
intervals.
Range
3.6
may include but is not limited to – system operator and field
operator reports.
Alterations to switching plan are discussed, approved, and implemented in
consultation with system controller.
Range
3.5
may include but is not limited to – field operators, SCADA.
may include but is not limited to – phone, radio.
Status of equipment is inspected and tested for compliance with industry safety
rules.
Range
may include but is not limited to – voltage detection device,
portable earths.
3.7
Network equipment is restored to, or removed from, service.
3.8
Switching is documented in accordance with asset owner procedures.
Range
3.9
may include but is not limited to – log entries.
Steps in switching plan are actioned and documented.
Range
may include but is not limited to – reports from system operators,
field operators, contractors.
Element 4
Review operating actions.
Performance criteria
4.1
Operating order and actions are reviewed to determine compliance with the
switching plan.
Range
may include but is not limited to – system operators, field
operators, contractors.
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4.2
Status of network is updated.
Range
4.3
Changes and modifications to network equipment are noted from switching
plan.
Range
4.4
may include but is not limited to – mimic display, SCADA, the log.
Status of network equipment is updated.
Range
4.5
may include but is not limited to – single line diagrams, SCADA,
mimic displays.
may include but is not limited to – single line diagram, SCADA,
mimic display.
Work approvals and authorisations are monitored for their acceptance and
return within a timeframe specified by asset owner.
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