NZQA registered unit standard
27321 version 1
Page 1 of 3
Title
Demonstrate knowledge of digital switching marine electrical
systems
Level
4
Credits
4
Purpose
People credited with this unit standard are able to explain:
digital switching marine system principals; and procedures for
programming, commissioning and troubleshooting marine
electrical digital switching systems.
Classification
Boating Industries > Boatbuilding
Available grade
Achieved
Explanatory notes
1
Evidence for this unit standard must be compliant with either –
(a) Relevant rules of a classification society in accordance with hull or full
certification standards for the ship's operating limits.
(b) AS/NZS 3004.2:2008 – Electrical installations – Marinas and recreational boats
– Recreational boats installations.
(c) ISO 10133:1994(E) – Small craft – Electrical systems – Extra low voltage DC
installations.
2
Definition
BUS subsystem that transfers data between components in a computer or electronic
system.
3
BUS – applies generically and may include Controller Area Network (CanBUS), or
proprietary BUS systems of electronic component manufacturers.
Outcomes and evidence requirements
Outcome 1
Explain digital switching marine systems.
Evidence requirements
1.1
Communication BUS principals are explained for marine digital switching
system contexts.
NZ Marine Industry Training Organisation
SSB Code 101812
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
1.2
Wiring and component connection principals are explained for marine digital
switching systems.
Range
1.3
27321 version 1
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for a vessel exceeding 14m with all electrical functions digitally
switched.
Electronic component control principals are explained for marine electrical
digital switching systems.
Range
for a vessel exceeding 14m with all electrical functions digitally
switched.
1.4
Digital switching applications are described for craft types ranging from simple
to complex.
1.5
Digital switching is compared with analogue switching systems in terms of
advantages and disadvantages.
Outcome 2
Explain procedures for programming, commissioning and troubleshooting marine electrical
digital switching systems.
Range
for a vessel exceeding 14m with all electrical functions digitally switched.
Evidence requirements
2.1
Generic procedures for programming digitally controlled equipment are
described.
2.2
Generic procedures for commissioning digitally controlled equipment are
described.
2.3
Generic procedures for troubleshooting of digitally controlled equipment are
described.
Planned review date
31 December 2016
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
20 May 2011
N/A
Consent and Moderation Requirements (CMR) reference
0136
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
NZ Marine Industry Training Organisation
SSB Code 101812
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
27321 version 1
Page 3 of 3
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 (CMRs). 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 NZ Marine Industry Training Organisation training@bia.org.nz if you
wish to suggest changes to the content of this unit standard.
NZ Marine Industry Training Organisation
SSB Code 101812
 New Zealand Qualifications Authority 2016