20087 version 2
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Replace tension insulators on electricity supply structures using live
line bare-hand techniques
Level
5
Credits
15
Purpose
People credited with this unit standard are able to: plan and prepare for
replacement of tension insulators using live line bare-hand techniques;
replace tension insulators on electricity supply structures using live line barehand techniques; report work on the replacement of tension insulators.
Subfield
Electricity Supply
Domain
Electricity Supply - Live Work
Status
Registered
Status date
19 March 2010
Date version published
19 March 2010
Planned review date
31 December 2014
Entry information
Prerequisite: Unit 10539, Access electricity supply lines
for bare-hand live line work, or demonstrate equivalent
knowledge and skills.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Electricity Supply Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0120
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
This unit standard is intended for, but not restricted to, 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.
 New Zealand Qualifications Authority 2016
20087 version 2
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3
Performance and work practices in relation to the elements and performance criteria
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 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 elements and
performance criteria 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.
6
Entry into live work is conditional on the trainee meeting the minimum requirements
of NZECP 46:2003: New Zealand Electrical Code of Practice for High Voltage Live
Line Work.
Elements and performance criteria
Element 1
Plan and prepare for replacement of tension insulators using live line bare-hand
techniques.
Performance criteria
1.1
Work instruction for task at hand is obtained.
Range
1.2
Access method is selected to match work instruction.
Range
1.3
includes but is not limited to – single circuit, double circuit,
suspension structure, strain structure.
rope access, ladder access, helicopter access, platform access.
Safety of people on and around live high voltage lines is described in terms of:
the safety of visitors and the public, safe work practices of employees and other
workers, supervisor responsibilities; attending job location; personal protective
equipment, identification of live line minimum approach distances (LLMAD), and
reclose block.
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20087 version 2
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1.4
Staff planning and briefing meeting is conducted, co-ordinated, and
documented.
Range
1.5
Tooling is selected to match work instruction.
Range
1.6
includes but is not limited to – appointment of safety observers,
detail individual duties, outline of site and adjacent span and
structure hazards, detail method to be used (bare-hand), visual
check of all safety equipment, detail structure loadings and safe
working load (SWL) of tools and equipment, hazard management.
includes but is not limited to – insulator tester, conductive suits,
tool bags, capstan assembly, insulator lifter, capstan hoist and
lead, portable generator and extension leads, snatch blocks, nylon
strops (endless), conductor lifter, chain hoist, shackles, wire rope
hoist, rope tester, block and tackle, safety strop, and live line rope.
Final access planning is completed in terms of identifying the line circuit and
phases to be worked on, obtaining a reclose block agreement, laying out the
tools on the ground sheet, and ensuring that tools are clean, undamaged, and
fit for purpose.
Element 2
Replace tension insulators on electricity supply structures using live line bare-hand
techniques.
Performance criteria
2.1
Tooling and rigging for ladder access, as detailed in work instruction, are
installed and used.
2.2
Tooling and rigging for rope access, as detailed in work instruction, are installed
and used.
2.3
Insulators are replaced.
Range
2.4
Fittings are replaced.
Range
2.5
includes but is not limited to – porcelain, composite, glass.
includes but is not limited to – shackles, saddles, armour rods,
dead-ends, compression fittings.
Worksite is reinstated.
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20087 version 2
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Element 3
Report work on the replacement of tension insulators.
Range
includes but is not limited to – insulator installation sheet, live line report sheet,
rigging diagram, history and maintenance records.
Performance criteria
3.1
Reported information is complete, concise, and legible.
3.2
Information is recorded in the required format and filed within the scheduled
time-frame.
Please note
Providers must be 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 accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation 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.
 New Zealand Qualifications Authority 2016