NZQA registered unit standard
Title
20091 version 3
Page 1 of 3
Read and interpret single line diagrams in the electricity supply industry
Level
Purpose
3 Credits 3
People credited with this unit standard are able to: locate, identify and confirm currency of single line diagrams; and read and interpret single line diagrams; in the electricity supply industry.
Classification Electricity Supply > Electricity Supply - Core Skills
Available grade Achieved
Explanatory notes
1 This unit standard is intended for, but not restricted to, workplace assessment. The range statements across the unit standard can be applied according to industry specific equipment, procedures, and processes.
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 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 current version of 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, Hamilton 3240.
3 The phrase in accordance with industry requirements is implicit in all outcomes and evidence requirements 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.
Electricity Supply Industry Training Organisation
SSB Code 101813

New Zealand Qualifications Authority 2020

NZQA registered unit standard 20091 version 3
Page 2 of 3
Outcome 1
Locate, identify and confirm currency of single line diagrams in the electricity supply industry.
Range five diagrams are required.
Evidence requirements
Single line diagrams are located. 1.1
1.2 Single line diagrams are identified.
1.3 Single line diagrams are confirmed as current.
Outcome 2
Read and interpret single line diagrams in the electricity supply industry.
Evidence requirements
2.1 The purpose of single line diagrams is described.
2.2 Symbols for equipment on the single line diagrams and their use are identified and explained.
Range includes but is not limited to
– current, earthing, voltage, power, auto, and capacitive voltage transformers; surge arrestor, rod gaps, tap changer on load, power cable, indoor metal clad switchgear, reactor, capacitor, static capacitor bank, line trap, generator, rectifier and invertors, synchronous condenser, earth switch, disconnector, circuit breaker; evidence is required for five diagrams.
2.3 Single line diagrams are read and interpreted.
Range includes but is not limited to – current, earthing, power and voltage transformers; line earth switch, line circuit breaker, bus coupler circuit breaker, surge arrestor, rod gaps, power cable, indoor switchboard, supply bus, line disconnector, bus selection disconnector, bypass disconnector generator, rectifier and invertors, synchronous condenser; evidence is required for five diagrams.
2.4 Bus voltages are identified on single line diagrams.
Range evidence is required for five diagrams.
Electricity Supply Industry Training Organisation
SSB Code 101813

New Zealand Qualifications Authority 2020

NZQA registered unit standard 20091 version 3
Page 3 of 3
2.5 Bus ratings are identified on single line diagrams.
Range
Planned review date evidence is required for five diagrams.
31 December 2015
Status information and last date for assessment for superseded versions
Process Version Date Last Date for Assessment
Registration
Rollover and
Revision
1
2
22 October 2003
26 November 2007
31 December 2013
31 December 2013
Review 3 9 December 2010 N/A
Accreditation and Moderation Action Plan (AMAP) reference 0120
This AMAP 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, 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 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.
Consent 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.
Electricity Supply Industry Training Organisation
SSB Code 101813

New Zealand Qualifications Authority 2020