NZQA registered unit standard
20092 version 4
Page 1 of 3
Title
Demonstrate knowledge of electricity transmission and distribution
plant and equipment
Level
2
Credits
4
Purpose
People credited with this unit standard are able to: identify and
describe the primary components and voltages of electricity
supply networks; and describe electricity network plant and
equipment purpose and function.
Classification
Electricity Supply > Electricity Supply - Core Skills
Available grade
Achieved
Explanatory notes
1
This unit standard is intended for both off job and workplace assessment.
2
Safety of personnel and plant must be a priority throughout the assessment. If the
safety requirements are not met, the assessment must stop.
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 amendments), and any regulations and codes of practice recognised
under that statute; the Health and Safety in Employment Act 1992 (and any
amendments); 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, 2010), and
occupational safety and health codes of practice. 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.
4
The phrase in accordance with industry requirements is implicit in all outcomes and
evidence requirements in this unit standard.
5
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
Identify and describe the primary components and voltages of electricity supply networks.
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20092 version 4
Page 2 of 3
Evidence requirements
1.1
Transmission network primary plant and equipment are identified and
described.
includes but is not limited to – transmission line, transmission
circuit, substation, earth switch, disconnector, circuit breaker,
outdoor bus, surge arrestor, indoor switchboard, supply bus,
electrical drop outs (DDO or EDO) reclosers, reactors, capacitors;
current, voltage, power transformers.
Range
1.2
Typical operating voltages of distribution and transmission are identified.
Range
400 V, 6.6 kV11 kV, 22 kV, 33 kV, 66 kV, 110 kV, 220 kV, 350 kV.
Outcome 2
Describe electricity network plant and equipment purpose and function.
Evidence requirements
2.1
Transmission network primary plant and equipment purpose and function are
described.
includes but is not limited to – transmission line, transmission
circuit, substation, earth switch, disconnector, circuit breaker,
outdoor bus, surge arrestor, indoor switchboard, supply bus,
protection scheme, sectionalisers, reclosers, reactors, capacitors,
power transformers.
Range
2.2
Substation circuit breaker and transformer types and functions are described.
includes but is not limited to – SF6 circuit breaker, bulk oil circuit
breaker, current voltage transformer, metal clad switchgear, single
phase transformer, 3 phase transformer.
Range
Planned review date
31 December 2018
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
22 October 2003
31 December 2013
Rollover and
Revision
2
20 June 2008
31 December 2013
Review
3
21 July 2011
31 December 2013
Review
4
15 August 2013
N/A
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20092 version 4
Page 3 of 3
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 assessment 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 assessment standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against assessment 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.
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.
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016