NZQA registered unit standard
28281 version 1
Page 1 of 4
Title
Joint electricity supply power cable from 22 kV to 33 kV using
transition jointing methods
Level
5
Credits
15
Purpose
People credited with this unit standard are able to: prepare a
work site to carry out transition jointing high voltage (HV) paper
cable to a polymeric insulated cable; joint HV paper cable and
HV polymeric insulated cable using a transition jointing method;
and test cables and record joint location.
Classification
Electricity Supply > Electricity Supply - Distribution Networks
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 20535, Joint electricity supply power cables up to and
including 11kV using transition jointing methods, or
demonstrate equivalent knowledge and skills.
Explanatory notes
1
This unit standard is intended for, but not restricted to, workplace assessment. The
range statements within the unit standard can be applied according to enterprise
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 and the candidate will be
assessed as not yet competent.
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 the latest 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 1245
Hamilton 3240.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28281 version 1
Page 2 of 4
4
The phrase in accordance with industry requirements is implicit in all outcomes and
evidence requirements in this unit standard.
5
Definitions
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.
Asset owner refers to the owner of an electricity supply network that takes its point of
supply from Transpower NZ, and delivers electricity to industrial, commercial and
residential customers.
Asset owner standards are the approved documented work site methods for carrying
out work on an electrical supply network to the standard required by the asset owner.
6
This unit standard is intended for use in the assessment of Cable Jointers, and all
terminology and workplace assessment should be related to that sector of the
industry.
7
This unit standard excludes tough plastic sheath (TPS) type cables.
8
The observance of special safety requirements associated with this type of jointing is
critical to assessment against this unit standard. When working on live components
and live jointing the selection and use of hand tools is to comply with IEC 60900:2012
Live working – Hand tools for use up to 1000 V a.c. and 1500 V d.c.
9
HV is defined as ‘high voltage’ and includes voltages from 22kV up to and including
33kV.
10
Assessment of practical skills against the outcomes in this unit standard requires
three practical observations from three different workplace activities.
Outcomes and evidence requirements
Outcome 1
Prepare a work site to carry out transition jointing on HV paper cable to a polymeric
insulated cable.
Evidence requirements
1.1
Scope of work is determined.
Range
1.2
location of cable, condition of cable, safety issues, cable
de-energised or energised, material and manpower resources.
Cables are identified.
Range
Infrastructure ITO
SSB Code 101813
electrical characteristics, physical characteristics, cable plans.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
1.3
Safe working zone is established.
Range
1.4
28281 version 1
Page 3 of 4
physical location, working mats, safe working area delineation,
entry and exit positions, SM-EI guidelines and safety equipment,
permit’s requirements, joint pit requirements.
Cables are checked and tested in preparation for termination.
Range
includes but is not limited to – continuity, core identification,
insulation resistance, moisture, phase testing to 33kV.
Outcome 2
Joint HV paper cable and polymeric insulated cables using a transition jointing method.
Evidence requirements
2.1
Correct selection of tools and equipment is made.
2.2
Joints are prepared.
Range
2.3
Conductors are terminated and jointed.
Range
2.4
may include but is not limited to – barrier, elastomer, heat shrink,
tapes, resins, void filling, screens, cable core separation;
evidence of four is required.
Earth continuity is re-established.
Range
2.6
may include but is not limited to – compression, mechanical, weld,
shearbolt, cleanliness, moisture management;
evidence of three is required.
Conductors are re-insulated.
Range
2.5
cleaning, conductor preparation, stripping, earthing, moisture
management, positioning.
bedding layer, screens, steel wire armour, steel tape armour.
Mechanical and environmental integrity are re-established.
Range
may include but is not limited to – elastomer, heat shrink, tapes,
compounding including resins, appropriate sealant;
evidence of two is required.
Outcome 3
Test cables and record joint location.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28281 version 1
Page 4 of 4
Evidence requirements
3.1
Cables are tested after jointing.
includes but is not limited to – visual, HV pressure testing,
insulation resistance, continuity test, sheath integrity, phase
testing to manufacturers’ specifications.
Range
3.2
Joint as built is recorded to asset owner standards
includes but is not limited to – location, test results.
Range
Planned review date
31 December 2019
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
18 September 2014
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.
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 Industry Training Organisation
qualifications@infrastructureito.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