1

Plan maintenance activities

1.1

Maintenance plan is accessed to determine electrical system maintenance requirements

1.2

Inspections are conducted and additional non-routine maintenance requirements are determined

1.3

System specifications and diagrams for electrical systems are obtained

1.4

Tasks are planned and sequenced in conjunction with others involved in or affected by maintenance work

1.5

Consumables and equipment are selected and checked for serviceability

2

Complete preventative maintenance

2.1

Electrical system is safely isolated according to regulatory and work health and safety (WHS)/occupational health and safety (OHS) requirements

2.2

WHS/OHS risk control measures and procedures for carrying out work are followed

2.3

Preventative maintenance is carried out in compliance with system specifications

2.4

Methods for dealing with unexpected situations are selected on the basis of safety and specified work outcomes

2.5

Work is carried out efficiently without waste of materials and damage to equipment and machinery or other services

2.6

Maintenance work is checked to verify that it conforms with technical specifications

3

Complete breakdown maintenance

3.1

Nature of breakdown is confirmed using maintenance records and/or log book entries related to reported breakdown

3.2

Restrictions are applied to operations, if necessary, and Master is notified

3.3

Limits of repair work that can be carried out are established according to relevant state/territory electrical licensing requirements

3.4

System is isolated

3.5

Repair work is carried out according to system specifications

3.6

Master is notified of completion of repair work and details are documented

4

Clean up and complete documentation

4.1

Work area is cleared and cleaned

4.2

Materials are disposed of or recycled according to legislative and workplace requirements

4.3

Tools and equipment are cleaned, checked and stored according to workplace procedures

4.4

Electrical system and equipment are put back into service and monitored for correct operation according to organisational practices

4.5

Maintenance report is completed according to workplace procedures

Required Skills:

Carry out simple maintenance of electrical systems

Implement safe and environmentally responsible work practices

Read and interpret system specifications

Required Knowledge:

Battery:

charging systems

maintenance

types and associated hazards

Connecting batteries in series and parallel

Connection to shore power

Earth indicating devices

Electrical distribution systems

Isolation of electrical circuits

Main faults that can occur in:

AC electrical systems

DC electrical systems

Maintenance and operation of batteries

Protection devices

Single and three-phase AC power

Starter motors, alternators and associated equipment

Switchboard and protection devices

Uses of fuses and circuit breakers

Use of multi-meter to test voltage and continuity

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:

being aware of own ability and limits to rectify irregularities and faults

ensuring currency of relevant legislative and regulatory knowledge

implementing workplace environmental and waste management procedures correctly.

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:

industry-approved marine operations site where undertaking basic maintenance of electrical systems can be conducted

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 and/or 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 and/or

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 undertaking basic maintenance of electrical systems

direct observation of the candidate applying relevant WHS/OHS 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.

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.

Electrical systems may include:

AC generators

Alarm systems

Batteries

Emergency electrical supply

Emergency generators

Generators

Motor starting circuits

Power and lighting

Shore supply

Steering gear circuits

Switchboards

Maintenance requirements may include:

Battery maintenance

Motor replacement

Replacing:

light bulbs

faulty wiring

Testing:

alarm systems

emergency generator

power and lighting systems

Consumables and equipment may include:

Hand and power tools rated for electrical work

Replacement parts

Test equipment

Nature of breakdown may include:

Blown fuses or open circuit breakers

Earthing

Failure of electricity generating systems

Motor brake failure to release

Motor failure

Shorting

Materials may include:

Batteries

Damaged wiring

Used lamps

Rags