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Elements and Performance Criteria

  1. Prepare to test and rectify faults
  2. WHS/OHS hazards are identified, risks assessed and control measures implemented in accordance with workplace procedures in preparation for work
  3. Scope of work to be undertaken is determined from fault/breakdown reports and/or discussions with appropriate person/s
  4. Advice is sought from the work supervisor to ensure the work is coordinated effectively with others
  5. Sources of materials required for work are established in accordance with workplace procedures
  6. Tools, equipment and testing devices needed to locate faults are obtained in accordance with workplace procedures and checked for correct operation and safety
  7. Find and repair faults
  8. Need to test or measure live electrical work is determined in accordance with WHS/OHS requirements and, as required, conducted within workplace safety procedures
  9. Circuits/machines/plant are isolated in accordance with WHS/OHS requirements and workplace procedures
  10. Safety hazards resulting from the fault or breakdown are assessed, documented on job safety assessments and risk control measures implemented in consultation with appropriate person/s
  11. Fault-finding analysis is approached methodically using measured and calculated values of electrical circuit/apparatus parameters
  12. Electrical circuit/apparatus components are dismantled, as required, and parts stored to protect against loss or damage
  13. Faulty circuits/components are rechecked and fault status identified
  14. Materials/replacement parts required to rectify faults are sourced and obtained in accordance with workplace procedures
  15. Effectiveness of repair/s is tested in accordance with workplace procedures
  16. Electrical apparatus and circuits are inspected, reassembled, tested and prepared for return to service
  17. Unplanned situations are responded to safely in accordance with workplace procedures in a manner that minimises risk to personnel and equipment
  18. Fault-finding and repair activities are carried out without damage to apparatus circuits, the surrounding environment or services using sustainable energy practices
  19. Complete and document repair activities
  20. Reusable, faulty or worn components are tagged and despatched for repair to maintain adequate spares
  21. Maintenance work activities are documented in accordance with workplace procedures

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Finding and repairing fault types in electrical apparatus and interconnecting circuits and equipment operating at voltages up to 1,500 V d.c. must include at least five of the following:

open circuit

short circuit

incorrect connections

insulation failure

unsafe condition

apparatus/component failure

related mechanical failure

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least two separate occasions and include:

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including using of risk control measures

applying sustainable energy principles and practices

completing repairs, and reporting fault-finding and repair activities

finding and repairing faults in direct current (d.c.) electrical apparatus and circuits, including:

determining the likely extent of work from fault/breakdown reports and discussions with appropriate person/s

using methodical fault-finding techniques

finding faults efficiently

rectifying faults effectively

completing documentation correctly

dealing with unplanned events in accordance with workplace procedures in a manner that minimises risk to personnel and equipment

implementing WHS/OHS requirements and workplace procedures

preparing to find and rectify faults.

Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

d.c. motor control methods

d.c. machines, including:

connection arrangements

installation and starting/running requirements and limitations

operating principles

purpose, types and applications

typical fault symptoms and related conditions

d.c. motor starters and their operating principles, including:

back emf

electronic controllers

series-lockout

timed starters

power and control connection arrangements, including:

built-in stop/start control

interlocking with other starters and controls

overload protection

remote stop/start control

braking methods, including:

dynamic

plugging

electromechanical

regenerative

speed control methods, including:

field control

rheostatic control

voltage control

protection of d.c. motors

relevant manufacturer specifications

relevant job safety assessments or risk mitigation processes

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace policies and procedures.