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Demonstrate knowledge of electrical and electronic applications for marine use

Level / 4
Credits / 8

PurposeThis theory-based unit standard is for people in the trailer boat and automotive electrical repair industries. People credited with this unit standard are able to demonstrate knowledge of: marine electrical and electronic systems; marine battery and voltage supply requirements; marine accessory wiring systems; and lighting and navigation systems on powered boats and yachts.

Subfield / Motor Industry
Domain / Automotive Electrical and Electronics
Status / Registered
Status date / 21 September 2007
Date version published / 21 September 2007
Planned review date / 31 December 2012
Entry information / Recommended: Unit 915, Service multiple battery installations on vehicles, machines and/or units; and Unit 21707, Demonstrate knowledge of automotive electrical principles; or demonstrate equivalent knowledge and skills.
Accreditation / Evaluation of documentation and visit by NZQA and industry.
Standard setting body (SSB) / NZ Motor Industry Training Organisation (Incorporated)
Accreditation and Moderation Action Plan (AMAP) reference / 0014

This AMAP can be accessed at

Special notes

1Regulations relevant to this unit standard include but are not limited to – Maritime Rules for Recreational Boating, issued by Maritime New Zealand, and available on their website

2Definition

Service information may include but is not limited to – technical information ofa vehicle, machine, or product detailing operation; installation and servicing procedures; manufacturer instructions and specifications; technical terms and descriptions; and detailed illustrations. This can be accessed in hard copy or electronic format and is normally sourced from the manufacturer.

3Information on marine electrical and electronic systems can be found from:training provider, industry and/or manufacturer courses; marine workshop manuals; marine electrical textbooks (contact a local book retailer, school or polytechnic library or the public library lending service); useful websites include but are not limited to:Fishpond Capital Books How Stuff Works New Zealand Book Find Public libraries Technical Books

Elements and performance criteria

Element 1

Demonstrate knowledge of marine electrical and electronic systems.

Performance criteria

1.1The range of electrical and electronic systems fitted to powered boats and yachts is identified in accordance with service information.

Rangetwo-wire wiring systems, battery banks, inboard and outboard ignition systems, marine charging systems, starter systems, accessory systems, navigation equipment, deck winch, bilge pump and blower, capstan, lights – interior and exterior, depth finder, radio telephone, trim circuit, accessory outlets, instrumentation and monitoring systems.

1.2Earthing requirements for marine electrical and electronic components are described in accordance with service information.

Rangecommon return system, insulated earth.

1.3The use of relays for high loading circuits is described in accordance with service information.

Rangeprotection of switches and wiring, prevention of voltage drop.

1.4The use of parallel switching in marine wiring circuits is described in accordance with service information.

Rangesecond control station (flybridge), alternative double sensing for instruments and control devices.

1.5The uses of sealed and waterproofed components are described in accordance with component service information.

Rangeignition system, engine components, exterior components, open cabin and flybridge components.

1.6Corrosion protection for electrical and electronic components is identified in accordance with service information.

Rangesealing, protective coverings and coatings, compatible materials, earthing.

Element 2

Demonstrate knowledge of marine battery and voltage supply requirements.

Performance criteria

2.1Marine battery types are identified in accordance with manufacturer specifications.

Rangeconstructional differences compared to automotive types, deep cycle types, characteristics.

2.2Battery installation requirements are identified in accordance with manufacturer specifications.

Rangecircuit hook-ups of multiple batteries; separate battery systems – starter, mains; secure hold down; ventilation requirements.

2.3Battery testing and charging methods and procedures are described in accordance with battery manufacturer instructions.

Rangehydrometer testing; battery monitoring; precautions for on-board charging; requirements for on-shore charging; single charging operation; split charging operation – blocking diodes, separator relay, battery switch.

2.4240 volt supply systems for marine use are described in accordance with supply system manufacturer specifications.

Rangeon-shore hook-up, inverters, regulation requirements.

Element 3

Demonstrate knowledge of marine accessory wiring systems.

Performance criteria

3.1Engine monitoring systems are described in accordance with service information.

Rangepurpose and extent of monitoring and instrumentation – type of engine, proposed application; range – basic, standard, optimum; direct measurement; indirect measurement; sensor devices; display instruments; warning lights; acoustic warning systems.

3.2On-board instrument functions and purposes are explained in accordance with service information.

Rangepressure monitoring – oil, air; temperature monitoring – direct cooled engines, coolant, oil, exhaust; contents gauges; hours counter; electrical system monitoring; navigation; communication.

Element 4

Demonstrate knowledge of lighting and navigation systems on powered boats and yachts.

Performance criteria

4.1Lighting requirements are described in accordance with Maritime Rules for Recreational Boating requirements.

Rangepositioning of navigation lights, colour.

4.2Cabin and accessory light requirements are described in accordance with service information.

Rangespot lights, deck lights, map reading lights, access lights, cabin lights.

4.3Emergency lighting and warning lights are identified in accordance with Maritime Rules for Recreational Boating requirements.

Rangeindependent breakdown lights, distress flares.

4.4Radio-telephone and transceiver types are identified in accordance with instrument manufacturer specifications.

Rangeboat-to-shore, frequency range.

4.5Navigation instruments are identified in accordance with instrument manufacturer specifications.

Rangerudder positioning, wind measuring system, compass, echo sounding system, log system, global positioning system (GPS), associated map references and terminology.

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 NZ Motor Industry Training Organisation (Incorporated) you wish to suggest changes to the content of this unit standard.

 New Zealand Qualifications Authority 2018