NZQA registered unit standard
20416 version 3
Page 1 of 5
Title
Carry out condition assessments of electricity supply line hardware
and conductors
Level
4
Credits
5
Purpose
People credited with this unit standard are able to: demonstrate
knowledge of line hardware and conductors; plan and prepare
for the condition assessment of line hardware and conductors;
carry out a condition assessment of line hardware and
conductors; and report line hardware and conductor condition
assessment results.
Classification
Electricity Supply > Electricity Supply - Transmission Networks
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 20412, Carry out a line patrol on an electricity supply
network, or demonstrate equivalent knowledge and skills.
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
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 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.
4
The phrase in accordance with industry requirements is implicit in all outcomes and
evidence requirements in this unit standard.
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
5
20416 version 3
Page 2 of 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
Demonstrate knowledge of line hardware and conductors.
Evidence requirements
1.1
Conductor types are identified and described.
Range
1.2
Conductor configurations are identified and described.
Range
1.3
includes but is not limited to – Aluminium conductor steel
reinforced galvanised core (ACSR/GZ), Aluminium conductor steel
reinforced greased core (ACSR/AC), Copper (CU), galvanised
extra high strength steel (GEHSS), optical fibre ground wire
(OFGW).
includes but is not limited to – strain, suspension, simplex, duplex,
quad, earth wire.
Attachment point types are identified and described.
Range
includes but is not limited to – strain plate, swivel, hanger bracket,
twisted barrel tongue, eye-bolt, U-bolt, working point.
1.4
Insulator assembly drawings are interpreted and matched with physical
components.
1.5
Insulators and insulator hardware are identified.
Range
1.6
includes but is not limited to – cap and pin, composite, glass disc,
porcelain disc.
Cap and pin insulator defects are described.
Range
includes but is not limited to – corrosion of metal caps and pins,
damage to security pins, deterioration of the cement, glass cap
and pin insulator defects, porcelain cap and pin insulator defects,
pollution defects, flashover mark defects.
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
1.7
Conductor fittings are described.
Range
1.8
includes but is not limited to – vibration, broken strands, corrosion,
pollution, loss of grease, uneven sags, differential tensions.
Composite insulator defects are described.
Range
1.10
includes but is not limited to – joints, vibration dampers, conductor
weights, insulator weights, repair sleeves, spacers, pre-formed
armour rods, pre-formed dead ends, pressed dead ends, patch
rods jumpers, twisted armour rods.
Conductor deterioration processes are described.
Range
1.9
20416 version 3
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includes but is not limited to – corrosion of metal parts,
hydrophobicity, deterioration of rubberised material.
Insulator hardware defects are described.
Range
includes but is not limited to – corrosion of metal parts, wear of
attachment points.
Outcome 2
Plan and prepare for the condition assessment of line hardware and conductors.
Evidence requirements
2.1
Scope of work is identified.
Range
includes but is not limited to – inspection requirements, site
information, plans, procedures, approvals.
2.2
Landowners are notified and access is agreed.
2.3
Measuring equipment is selected.
2.4
Check sheets for inspections are selected.
2.5
Specialist staff requirements are identified in terms of live line and excavation.
Outcome 3
Carry out condition assessment of line hardware and conductors.
Evidence requirements
3.1
Hardware is inspected and defects identified.
3.2
Conductors are inspected and defects identified.
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20416 version 3
Page 4 of 5
3.3
Attachment points are inspected and defects identified.
3.4
Insulators are inspected and defects identified.
3.5
Earth wire is inspected and defects identified.
3.6
Hazard identification is carried out.
Outcome 4
Report line hardware and conductor condition assessment results.
Evidence requirements
4.1
Line hardware and conductor condition coding system is applied.
4.2
Size, location, and impact of all defects are recorded.
4.3
Defective line hardware and conductors are reported.
Planned review date
31 December 2015
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
20 April 2004
N/A
Rollover and
Revision
2
21 November 2008
N/A
Review
3
19 November 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.
Electricity Supply Industry Training Organisation
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20416 version 3
Page 5 of 5
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 2016