NZQA registered unit standard
24747 version 2
Page 1 of 4
Title
Install and replace insulators and fittings
Level
4
Credits
5
Purpose
People credited with this unit standard are able to: determine
the load and tension configuration on conductors; select and
transport insulators and fittings to install or replace; install or
replace insulators and fittings on standard transmission
industry structures, and complete the job record, in accordance
with industry requirements.
Classification
Electricity Supply > Electricity Supply - Transmission Networks
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 10508, Identify electricity systems in preparation for work;
and Unit 10509, Climb and work on electricity network
structures; or demonstrate equivalent knowledge and skills.
Explanatory notes
1
This unit standard can be assessed in a workplace environment, or in a training or
educational environment if simulated equipment and examples are able to be
provided, or in a combination of both environments.
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.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
24747 version 2
Page 2 of 4
4
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.
5
The following terms and abbreviations relate to this unit standard:
Asset owner refers to an electricity industry participant who owns or operates assets
used for generating or conveying electricity.
Asset owner procedures are the approved documented work site methods for
carrying out work on electrical generation assets or supply network to the standard
required by the asset owner.
Industry requirements include all asset owner procedures; 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.
WLL refers to the working load limit.
Outcomes and evidence requirements
Outcome 1
Determine the load and tension configuration on conductors.
Range
may include but is not limited to calculation of – suspension load, bisect tension,
tension load, minimum safe working loads (SWL).
Evidence requirements
1.1
The conductor load due to bisect tension of angle suspension units is
determined.
1.2
The tension configurations are determined according to industry requirements.
1.3
Site rigging calculations are performed according to industry requirements.
Outcome 2
Select and transport insulators and fittings to install or replace in accordance with industry
requirements.
Evidence requirements
2.1
Insulators and fittings are selected.
Range
2.2
may include but is not limited to – rating, size, type of environment.
Insulators and fittings are packed and transported to site.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
24747 version 2
Page 3 of 4
Outcome 3
Install or replace insulators and fittings on standard transmission industry structures, and
complete the job record in accordance with industry requirements.
Range
evidence is required of one strain, and two suspension
Evidence requirements
3.1
Rigging equipment is selected to meet the requirements of WLL.
3.2
Insulators and fittings are inspected to determine whether any damage is
present.
includes but is not limited to – chips, corrosion, cracks,
contamination.
Range
3.3
Insulators and fittings are inspected to determine whether a clean is required,
and, if required, a clean is undertaken.
includes but is not limited to – rust removal, wash, wipe.
Range
3.4
New insulators and fittings are installed or replaced as appropriate.
3.5
Work site is reinstated.
3.6
Job record is completed.
includes but not limited to – job sheets, structure report, condition
assessment.
Range
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
23 April 2008
31 December 2018
Review
2
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.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
24747 version 2
Page 4 of 4
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.
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