MARB4006A - Undertake maintenance of 240 to 440 voltage alternating current electrical systems
Assessor Resource
MARB4006A Undertake maintenance of 240 to 440 voltage alternating current electrical systems
Assessment tool
Version 1.0 Issue Date: March 2024
This unit applies to engine workers in the maritime industry working as a Marine Engine Driver Grade 1 on vessels up to 1500 kW.
WARNING: Relevant state/territory qualification requirements apply to persons carrying out installation, maintenance and/or repair of refrigeration equipment, especially with regard to preventing the escape of refrigerants into the atmosphere and to electrical work.
This unit involves the skills and knowledge required to perform establish, organise and implement a preventative and reactive maintenance program and capabilities on 240 to 440 voltage alternating current (AC) electrical systems on a vessel.
You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)
Prerequisites
Not applicable.
Employability Skills
This unit contains employability skills.
Evidence Required
List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
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:
developing effective planning documents
providing high quality reports
ensuring currency of relevant WHS/OHS skills and knowledge.
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 planned and breakdown maintenance of 240 to 440 voltage AC 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.
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 planned and breakdown maintenance of 240 to 440 voltage AC 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.
Submission Requirements
List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here
Assessment task 1: [title] Due date:
(add new lines for each of the assessment tasks)
Assessment Tasks
Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.
Required Skills:
Apply safety requirements throughout work sequence including the use of personal protective equipment (PPE)
Complete all work to specification
Ensure correct requirements and details of maintenance of electrical systems and equipment
Implement safe and environmentally responsible work practices in testing and maintenance activities
Locate, interpret and apply manufacturer specifications for electrical systems and equipment
Operate AC systems and conduct operator preventive maintenance according to manufacturer recommendations, regulations and vessel operating procedures to ensure safe operation
Operate electrical systems and equipment according to manufacturer recommendations, regulations and vessel operating procedures to ensure safe operation
Recognise electrical system faults and where necessary take steps to make them immediately safe
Select and use appropriate processes, tools and equipment
Required Knowledge:
AC systems not exceeding 440 voltage AC
Batteries (types, care and maintenance, hazards)
Care of electrical systems and equipment in general (fault recognition)
Charging systems:
alarms/indicators
regulators
Connecting batteries
Electric systems (above 240 V AC and up to 440 V AC)
Fault identification, location and safety implications
Operation and maintenance of starter motors, alternators and associated equipment
Personal safety
Protective devices on switchboards
Shore power connection
Use of fuses and circuit breakers (selection of correct capacity)
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
Electrical motor starting circuits
Emergency electrical supply
Emergency generators
Generators
Power and lighting
Shore supply
Steering gear
Switchboards
Special requirements for electrical system maintenance may include:
Breakdown maintenance
Periodic inspections and surveys
Maintenance tasks may include:
Battery maintenance
Generator servicing
Replacing faulty wiring
Testing:
alarm systems
emergency generator
power and lighting systems
Consumables and equipment may include:
Replacement parts
Testing equipment
Tools and equipment rated for electrical work
Emergency equipment may include:
Alarm systems
Emergency generator
Firefighting equipment
Lifesaving equipment
Pump operations
Nature of breakdown may include:
Failure of electricity generating systems
Generator failure
Restrictions may include:
Stopping main engine
Stopping one generator
Switching to emergency power
Reports may include:
Incident reports
Maintenance log
Operational orders from organisation SMS
Reports required under planned maintenance system
Survey reports
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.
Observation Checklist
Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice
Yes
No
Comments/feedback
Regulatory and organisational requirements for electrical system maintenance program are identified and followed
Specifications, diagrams and organisational procedures for electrical systems are checked for recommended maintenance
Special requirements for electrical system maintenance are separated from adjustment and day-to-day maintenance schedules
Maintenance system goals for electrical systems are outlined
Maintenance plan and related work schedule for electrical systems are developed according to regulatory requirements and safety management system (SMS)
Maintenance costs are identified and quantified
Interruptions, processes and procedures are documented
Internal and external maintenance providers are specified
Maintenance plan is prepared to minimise negative impacts on production, costs, waste and the environment
Approvals for maintenance plan are negotiated and confirmed
Recordkeeping systems are developed and maintained
Schedules and rosters are checked to verify time when maintenance process may be scheduled, including optimal timing for shut down
Agreement from Master is obtained for timing of maintenance tasks to optimise maintenance process and minimise operational disruptions
Detailed work plans are developed in line with schedules, availability of expertise and scheduling of resource availability
Team members with required competencies are allocated to maintenance activities
Consumables and equipment are secured to meet work plan requirements
Externally sourced equipment, consumables and expertise are located and procured
Contingency plans are prepared
Maintenance schedules and procedures are effectively communicated to team
Job specifications and maintenance tasks are communicated effectively to team members
Maintenance and repair tasks are monitored to ensure they satisfy system specifications
Work health and safety (WHS)/occupational health and safety (OHS) requirements are monitored and observed at all times
Emergency equipment is made available and working order of this equipment is ensured
Contingencies are managed to ensure quality of work is maintained and work is completed within agreed timeframe
WHS/OHS risk control measures and procedures for carrying out work are followed
Maintenance schedule and process compliance requirements are confirmed and work is appropriately sequenced according to job specification
Appropriate person/s are consulted to ensure work is coordinated effectively with others
Resources needed to conduct maintenance are obtained according to organisational procedures and are checked against job requirements
Tools, equipment and testing devices needed to conduct maintenance are obtained according to organisational procedures and checked for correct operation and safety
Live and operating system is tested or measured strictly according to WHS/OHS requirements and within established safety procedures
Electrical equipment is checked as being isolated where necessary, strictly according to WHS/OHS requirements and within established safety procedures
Electrical equipment to be maintained is inspected and evaluated for compliance with system specifications
Non-compliant electrical equipment components are rectified or repaired according to system specifications
Nature of breakdown is confirmed with appropriate personnel
Extent of breakdown is evaluated and confirmed using diagnostic and troubleshooting techniques
Restrictions are applied to operations, if necessary, and agreed to with the Master
Electrical equipment is checked as being isolated where necessary, strictly according to WHS/OHS requirements and within established safety procedures
Repair work is carried out according to system specifications
Master is notified of completion of repair work and details are documented
Maintenance tasks are monitored to ensure they are completed according to maintenance plan and statutory survey requirements
Electrical systems is monitored to ensure achievement of planned outcomes
Costs are monitored and controlled
Adjustments are made to maintenance plan to take into account failure to achieve planned outcomes
Reports are completed according to maintenance plan requirements and organisational procedures
Recommendations to improve maintenance plan safety, efficiency and effectiveness are implemented under regular review of SMS
Forms
Assessment Cover Sheet
MARB4006A - Undertake maintenance of 240 to 440 voltage alternating current electrical systems
Assessment task 1: [title]
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I declare that the assessment tasks submitted for this unit are my own work.
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Result: Competent Not yet competent
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Assessment Record Sheet
MARB4006A - Undertake maintenance of 240 to 440 voltage alternating current electrical systems
Student name:
Student ID:
Assessment task 1: [title] Result: Competent Not yet competent
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Feedback to student:
Overall assessment result: Competent Not yet competent