NZQA Expiring unit standard / 16408 version 6
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Title / Pre-wire an electrical installation
Level / 3 / Credits / 5
Purpose / This unit standard covers the pre-wiring of a building. It is intended for people wishing to qualify as electricians.
People credited with this unit standard are able to:
–prepare for pre-wiring an electrical installation;
–install low-voltage wiring; and
–inspect and document wiring prior to lining.
Classification / Electrical Engineering > Electrical Installation and Maintenance
Available grade / Achieved

Explanatory notes

1This unit standard has been developed for learning and assessment on-job.

2Achievement of this unit standard does not by itself imply that trainees may legally perform prescribed electrical work in their own right. Until they are registered and licensed under the Electricity Act 1992, trainees are assisting, and must work under the supervision of a Supervisor of Electrical Work when carrying out prescribed electrical work. If the prescribed electrical work in question is carried out for reward the Supervisor of Electrical Work must hold a valid practising licence.

3References

Electricity Act 1992;

Electricity (Safety) Regulations 2010;

Health and Safety in Employment Act 1992;

AS/NZS 3000:2007, Electrical installations (known as the Australian/New Zealand Wiring Rules), including Amendment 1;

AS/NZS 3008.1.2:2010,Electrical installations – Selection of cables – Cables for alternating voltages up to and including 0.6/1 kV – Typical New Zealand conditions;

and all subsequent amendments and replacements.

4Definitions

The term current regulations and standards is used in this unit standard to refer to the requirements of the above references.

pre-wiring – the installation of electrical cables before the lining of the walls of a building are installed.

The term safe and sound practice relating to the installation of electrical equipment is defined in AS/NZS 3000:2007.

5Range

aDemonstration of safe working practices and installation in accordance with safe and sound practice are essential components of assessment of this unit standard.

bEvidence is required of the pre-wiring of an installation such as a three bedroom house, or equivalent industrial or commercial installation, with at least two of the following types of cables for fixed wiring – tough plastic-sheathed (TPS), conduit wire, co-axial (neutral-screened) cables, cross-linked poly ethylene (XLPE) steel-wire armoured (SWG).

Outcomes and evidence requirements

Outcome 1

Prepare for pre-wiring an electrical installation.

Evidence requirements

1.1Customer requirements are established, and a plan is obtained or developed for the installation showing the position of all openings and fittings.

1.2Cable sizes are determined from load requirements.

Rangecapacity of appliances, requirement for off-peak control, number of fittings.

1.3Cable routes are planned with consideration for the layout of the installation and according to current regulations and standards.

Outcome 2

Install low-voltage wiring.

Evidence requirements

2.1Wiring is installed in accordance with current regulations and standards.

2.2Allowance is made for future extensions to sub-circuits.

2.3Installation is completed to customer requirements.

2.4Waste and excess material are removed from site.

Outcome 3

Inspect and document wiring prior to lining.

Evidence requirements

3.1Cables are visually examined for damage and circuits are checked, prior to closing-in or lining of building, according to current regulations and standards.

3.2As-built drawings are marked up according to company requirements.

Replacement information / This unit standard, unit standard 16409 and unit standard 16410have been replaced by unit standard 29419.

This unit standard is expiring. Assessment against the standard must take place by the last date for assessment set out below.

Status information and last date for assessment for superseded versions

Process / Version / Date / Last Date for Assessment
Registration / 1 / 28 June 1999 / 31 December 2013
Revision / 2 / 3 April 2001 / 31 December 2013
Review / 3 / 26 May 2005 / 31 December 2021
Rollover and Revision / 4 / 15 March 2012 / 31 December 2021
Revision / 5 / 15 January 2014 / 31 December 2021
Review / 6 / 21 July 2016 / 31 December 2021
Consent and Moderation Requirements (CMR) reference / 0003

This CMR can be accessed at

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.

The Skills Organisation
SSB Code 100401 / New Zealand Qualifications Authority 2018 / / New Zealand Qualifications Aut