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Elements and Performance Criteria

  1. Analyse common faults in shipboard electrical machinery
  2. Perform fault- finding on electrical circuits
  3. Analyse complex shipboard switchboard layouts
  4. Explain electrical safety procedures for ship and shore personnel
  5. Synchronise, parallel and load share alternators on manual and auto modes
  6. Examine operation, construction and maintenance of circuit breakers
  7. Analyse function of emergency battery systems
  8. Explain hazards associated with marine high voltage installations

Required Skills

Required Skills

Assess own work outcomes and maintain knowledge of current codes standards regulations and industry practices

Explain intermediate principles of electrical circuits switchboards alternators and circuit breakers

Identify and interpret numerical and graphical information in electrical diagrams and specifications for a commercial vessel

Identify and suggest ways of rectifying electrical hazards and emergency situations on a vessel

Identify methods procedures and materials needed for testing marine electrical systems

Impart knowledge and ideas through verbal written and visual means

Read and interpret written information related to electrical circuitry and components on commercial vessels

Use electrical measuring and testing instruments

Required Knowledge

Alternating current ACdirect current DC voltage

Alternators construction characteristics synchronised operation


Circuit breakers



Electrical measuring and testing instruments

Electrical safe working practices

Electrical symbols basic electrical diagramscircuits

Emergency battery systems

Fault finding procedures

Isolation procedures

Phase angle power factor and current flow

Procedures for dealing with hazards and emergencies

Regulations of relevant stateterritory maritime and electrical licensing authorities

Resistance inductance and capacitance

Risks and safety procedures associated with working in high voltage environments

Safety environmental and hazard control precautions and procedures relevant to marine electrical systems

Switchboards and protection purpose testing and maintenance equipment removal

Work health and safety WHSoccupational health and safety OHS legislation and policies

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria the required skills and knowledge the range statement and the Assessment Guidelines for the Training Package

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the Elements Performance Criteria Required Skills Required Knowledge and include

providing accurate and reliable information

providing appropriate level of detail in responses

Context of and specific resources for assessment

Performance is demonstrated consistently over time and in a suitable range of contexts

Resources for assessment include access to

industryapproved marine operations site where intermediate knowledge of marine electrical systems can be demonstrated

technical reference library with current publications on marine electrical systems

tools equipment and personal protective equipment currently used in industry

relevant regulatory and equipment documentation that impacts on work activities

range of relevant exercises case studies andor other simulated practical and knowledge assessments

appropriate range of relevant operational situations in the workplace

In both real and simulated environments access is required to

relevant and appropriate materials and equipment

applicable documentation including workplace procedures regulations codes of practice and operation manuals

Method of assessment

Practical assessment must occur in an

appropriately simulated workplace environment andor

appropriate range of situations in the workplace

A range of assessment methods should be used to assess practical skills and knowledge The following examples are appropriate to this unit

direct observation of the candidate demonstrating intermediate knowledge of marine electrical systems

direct observation of the candidate applying relevant WHSOHS requirements and work practices

Guidance information for assessment

Holistic assessment with other units relevant to the industry sector workplace and job role is recommended

In all cases where practical assessment is used it should be combined with targeted questioning to assess Required Knowledge

Assessment processes and techniques must be appropriate to the language and literacy requirements of the work being performed and the capacity of the candidate

Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below.

Systems and components may include:



Switchboard layouts may include:

DC systems

Dedicated power supplies

Dual supply for steering gear

Feed back and feed forward arrangements

Interconnection with low voltage

Problems may include:

Electric shock

Enclosed space work

Noncompliance with safe working procedures

Unfamiliar with marine electrical systems

Using equipment beyond safe working limits

Working at heights