14651 version 3
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Demonstrate knowledge of the characteristics and production of cable
products
Level
2
Credits
7
Purpose
People credited with this unit standard are able to demonstrate knowledge of:
the components of cable products; the construction of cable products; wire
drawing processes; conductor assembly processes; extrusion processes;
cable assembly processes; and cable manufacturing specifications.
Subfield
Cablemaking
Domain
Cable Products and Testing
Status
Registered
Status date
21 April 1998
Date version published
20 November 2006
Planned review date
31 December 2008
Entry information
Recommended: Unit 14650, Demonstrate knowledge of
cable construction, applications and cablemaking
processes, or demonstrate equivalent knowledge and
skills.
Accreditation
Evaluation of documentation by NZQA and industry.
Standard setting body (SSB)
Competenz
Accreditation and Moderation Action Plan (AMAP) reference
0134
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Enterprise means an organisation where training and/or assessment is taking place,
and/or where the trainee is employed.
2
Enterprise procedure is defined as actions which comply with the policies, systems,
and directives in a particular enterprise. Enterprise procedure must comply with the
requirements of the Health and Safety in Employment Act 1992, and subsequent
amendments.
 New Zealand Qualifications Authority 2016
14651 version 3
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3
Definitions
Extra low voltage is up to 32 volts AC, 115 volts DC;
Low voltage is 33 volts AC up to 1 kV AC, 116 volts DC up to 1.5 kV DC;
Medium voltage is 1 kV AC up to 33 kV AC;
High voltage is 33 kV AC up to 170 kV AC;
Extra high voltage is above 170 kV AC.
Types of wiredrawing lines:
Rod breakdown is the production of wire down to 1mm diameter;
Intermediate wire is the production of wire in the range 0.3mm diameter to 1mm
diameter;
Fine wire is the production of wire below 0.3mm diameter.
4
International standards include:
New Zealand Standards (NZS);
Australian Standards (AS);
Combined Australian and New Zealand Standards (AS – NZS);
British Standards (BS);
Underwriters Laboratory (UL);
Verband Deutscher Elektrotechniker (VDE);
International Standards Organisation (ISO);
International Electrical Commission (IEC).
5
Competenz unit designation is CP2.
Elements and performance criteria
Element 1
Demonstrate knowledge of the components of cable products.
Performance criteria
1.1
The characteristics of conductor types and materials are described.
Range
1.2
types – circular, compressed, compact, sector (90º, 120º, 180º),
solid;
materials – copper, aluminium, steel wire, aluminium alloys, fibre,
silicon;
characteristics include – strength, weight, electrical load carrying
capacity, data transmission capacity, flexibility;
evidence of one characteristic is required for each type and
material.
The characteristics of insulator materials are described.
Range
materials – thermoplastic, thermoset, paper;
characteristics include – temperature rating, flexibility, chemical
resistance, electrical resistivity;
evidence of two characteristics is required for each material.
 New Zealand Qualifications Authority 2016
14651 version 3
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1.3
The characteristics of sheath materials are described.
Range
1.4
materials – polyethylene, polyvinyl chloride, elastomers, nylon,
megolon, lead;
characteristics include – temperature rating, flexibility, chemical
resistance, fire retardancy, mechanical properties, moisture
permeability;
evidence of two characteristics is required for each material.
Further components of cable products are identified, and their primary purpose
is described.
Range
further components – armour, screens, lead sheath, fillers, metallic
tapes, non-metallic tapes, drain wire.
Element 2
Demonstrate knowledge of the construction of cable products.
Performance criteria
2.1
The components within types of cable products are identified, and their primary
purpose is described.
Range
2.2
The construction of types of cable products are identified.
Range
2.3
components may include – conductor, insulator, sheath, armour,
screens, lead sheath, fillers, metallic tapes, non-metallic tapes,
drain wire;
types – extra low voltage, low voltage, medium voltage, high
voltage, data, communications, automotive, appliance, fibre optic,
aerial;
evidence is required for three types.
construction may include – single core, multi-core, pair, multi-pair,
armoured, screened;
types – extra low voltage, low voltage, medium voltage, high
voltage, data, communications, automotive, appliance, fibre optic,
aerial;
evidence is required for three types.
The generic materials used in types of cable products are identified.
Range
materials include – copper, aluminium, steel wire, polyethylene,
polyvinyl chloride, elastomers, nylon, paper, petroleum jelly,
metallic and non-metallic tapes, fillers, optic fibre, fibreglass, wax;
types – extra low voltage, low voltage, medium voltage, high
voltage, data, communications, automotive, appliance, fibre optic,
aerial;
evidence is required for three types.
 New Zealand Qualifications Authority 2016
14651 version 3
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Element 3
Demonstrate knowledge of wiredrawing processes.
Performance criteria
3.1
Primary wiredrawing line components are identified, and their principle of
operation is described.
Range
3.2
The equipment requirements and capabilities for different types of wiredrawing
lines are described.
Range
3.3
components – wiredrawing machine, controls, pay-off, annealer,
accumulator, spooler.
types of wiredrawing lines – rod breakdown, intermediate wire, fine
wire.
Wiredrawing line equipment requirements for processing different materials are
described.
Range
equipment requirements – line design, line construction,
lubrication types, lubrication systems, die types, die design;
materials – copper, aluminium, aluminium alloys, steel wire;
evidence is required for three materials.
Element 4
Demonstrate knowledge of conductor assembly processes.
Performance criteria
4.1
Primary conductor assembly line components are identified, and their principle
of operation is described.
Range
4.2
The principle of operation of different types of conductor assembly lines are
described.
Range
4.3
components – pay-off, carriage, die station, capstan, controls, take
up.
conductor assembly lines – rigid, planetary, bunching, SZ, tubular,
single twist, double twist.
Conductor assembly line equipment requirements for producing different types
of conductor are described.
Range
equipment requirements – capstan, pay-off, die station, take up;
types of conductor – circular, compressed, compact, sector (90º,
120º, 180º, pre-spiral, straight rolled), aluminium alloys, steel wire.
 New Zealand Qualifications Authority 2016
14651 version 3
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Element 5
Demonstrate knowledge of extrusion processes.
Performance criteria
5.1
Primary extrusion line components are identified, and their principle of operation
is described.
Range
5.2
Extrusion line equipment requirements for processing thermoplastic and
thermosetting materials are described.
Range
5.3
components – pay-off, extruder, controls, diehead assembly,
cooling, haul off, accumulator, take up.
equipment requirements – screw, diehead assembly, curing
system.
The principle of operation of different types of extrusion lines are described.
Range
extrusion lines – compounding, continuous catanary vulcanisation
(CCV), hot air vulcanisation (HAV), monsil, single extrusion, dual
extrusion, triple extrusion, co-extrusion.
Element 6
Demonstrate knowledge of cable assembly processes.
Performance criteria
6.1
Primary cable assembly line components are identified, and their principle of
operation is described.
Range
6.2
The principle of operation of different types of cable assembly lines are
described.
Range
6.3
components – pay-off, layplates, dieblock, controls, taping heads,
capstan or caterpillar, take up.
cable assembly lines – rigid, planetary, bunching, SZ, tubular,
drum twister, single twist, cabler, bow twister, double twist.
Cable assembly line equipment requirements for producing different cable
products are described.
Range
equipment requirements – pretwisters, preforming and forming
heads, pay-offs, take ups, dies, rollers;
cable products – insulated cores (circular, sector), non-insulated
cores (circular, sector), steel wire armour, copper wire screen,
tapes, fillers, lay length.
 New Zealand Qualifications Authority 2016
14651 version 3
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Element 7
Demonstrate knowledge of cable manufacturing specifications.
Performance criteria
7.1
The sections of international standards are identified, and their purpose is
described.
Range
sections – type test, routine test, sample test, special test,
definitions, tiles, scope, construction, preface, appendices
(informative or normative).
7.2
Enterprise procedure for the creation of manufacturing specifications is
described, and their relationship to international standards is explained.
7.3
Enterprise procedure for the modification of manufacturing specifications is
described.
Please note
Providers must be accredited by the Qualifications Authority, 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 the Qualifications Authority 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 Competenz if you wish to suggest changes to the content of this unit
standard.
 New Zealand Qualifications Authority 2016