NZQA registered unit standard
20414 version 4
Page 1 of 5
Title
Carry out condition assessments of electricity supply pole structures
Level
4
Credits
6
Purpose
People credited with this unit standard are able to: demonstrate
knowledge, plan and prepare for the condition assessment, and
carry out condition assessments of pole structures; carry out
condition assessments of cross arms on pole structures; and
report pole condition assessment results.
Classification
Electricity Supply > Electricity Supply - Transmission Networks
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
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 subsequent amendments, and any regulations, codes of practice
recognised under that statute; Health and Safety in Employment Act 1992, the
Resource Management Act 1991, and their subsequent amendments; electricity
supply industry codes of practice and documented enterprise procedures. These
include updated versions of Safety Manual – Electricity Industry (SM-EI) Wellington:
Electricity Engineers’ Association.
A full list of current legislation and industry codes is available from:
Infrastructure Industry Training Organisation
PO Box 2759
Wellington 6140.
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, and business and quality management
requirements relevant to the workplace in which assessment is carried out.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20414 version 4
Page 2 of 5
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of pole structures.
Range
concrete, steel or wooden poles
Evidence requirements
1.1
Types of pole defects are described.
Range
may include but is not limited to – chips in the concrete spalling,
cracking, corrosion, deformation, splits.
1.2
Pole types are identified in terms of monopole and octagonal.
1.3
The impact of pole defects on the mechanical structure is described.
Range
1.4
Function of pole guys and the impact on a pole structure is explained.
Range
1.5
may include but is not limited to – embedment depth, soil
compaction, foundation types including concrete, strengthened
soil, breast blocks, compacted soil, stubbed and nailed poles.
Impact of adjacent excavations and inadequate compaction is explained.
Range
1.7
may include but is not limited to – guy wires, longitudinal loading,
external transverse loading, guy anchors, stay poles, guy
insulation.
Pole foundation requirements are explained.
Range
1.6
may include but is not limited to – chips in the concrete spalling,
cracking, reinforcing corrosion, steel corrosion, deformation,
distortion, splits.
may include but is not limited to – embedment depth, soil
compaction, foundation types including concrete, strengthened
soil, breast blocks, compacted soil, stubbed and nailed poles.
Earthing types and deterioration are identified and described.
Range
may include but is not limited to – bonded steel cross arms and
earth peaks, external earthing, internal earthing on concrete poles.
Outcome 2
Plan and prepare for the condition assessment of pole structures.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20414 version 4
Page 3 of 5
Evidence requirements
2.1
Scope of work is identified.
Range
may include but is not limited to – inspection requirements, site
information, plans, procedures, approvals.
2.2
Measuring equipment is selected.
2.3
Check sheets for inspections are selected.
2.4
Structure design drawings and codes are identified and described.
2.5
Condition coding requirements are explained.
Outcome 3
Carry out condition assessments of pole structures.
Evidence requirements
3.1
Visual inspection of pole is carried out and defects identified.
3.2
Pole defects are determined and assessed.
3.3
Defect dimensions are measured.
Range
3.4
may include but is not limited to – splits, corrosion.
Ground condition categories are determined.
Range
may include but is not limited to – soil types (cohesive, noncohesive, mixed); water tables (fluctuating, dry, swampy,
estuarine); terrain type (mountainous, hilly, flat, urban); wind
factors, structure location category.
Outcome 4
Carry out condition assessment of cross arms on pole structures.
Evidence requirements
4.1
Cross arm construction type is determined and measured.
Range
4.2
may include but is not limited to – rectangular hollow section, steel
channel, hardwood, softwood.
Types of cross arm deterioration and areas of deterioration are described.
Range
Infrastructure ITO
SSB Code 101813
may include but is not limited to – corrosion of steel arms, decay
and splits in timber arms, insulator attachment points, through-bolt
attachment points, stay-bolts attachment points.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
4.3
20414 version 4
Page 4 of 5
Cross arm critical points are identified and described.
may include but is not limited to – insulator attachment points,
through-bolt attachment points.
Range
Outcome 5
Report pole condition assessment results.
Evidence requirements
5.1
Pole condition coding system is applied.
5.2
Size, location, and impact of all defects are recorded.
may include but is not limited to – chips in the concrete spalling,
cracking, reinforcing corrosion, steel corrosion, deformation, splits.
Range
5.3
Defective poles are reported and tagged.
Planned review date
31 December 2020
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
20 April 2004
31 December 2018
Rollover and
Revision
2
21 November 2008
31 December 2018
Review
3
19 November 2010
31 December 2018
Review
4
20 August 2015
N/A
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 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.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20414 version 4
Page 5 of 5
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 Infrastructure ITO (Connexis) qualifications@connexis.org.nz if you
wish to suggest changes to the content of this unit standard.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016