Application
This unit of competency defines the skills and knowledge required to diagnose, locate and rectify faults in electrical equipment/components up to 1000 volts a.c./1500 volts d.c. single and multi-phase power where these are disconnected from the electrical supply.
It covers basic mechanical disconnection, dismantling and reassembly of equipment components, enclosures and drives.
Where disconnection and reconnection of fixed-wired equipment is required unit MEM18049 Disconnect/reconnect fixed wired equipment up to 1000 volts a.c./1500 volts d.c. should also be selected.
Where work involves up to 250 volt single phase supply only then unit MEM18045 Fault find and repair electrical equipment/components up to 250 volts single phase supply should be selected.
Some jurisdictions may require the holder of this unit to be licensed or certified and users should check with the relevant authorities.
Band: A
Unit Weight: 10
Elements and Performance Criteria
Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. | ||
1 | Determine job requirements | 1.1 | Follow standard operating procedures (SOPs) |
1.2 | Comply with work health and safety (WHS) requirements at all times | ||
1.3 | Use appropriate personal protective equipment (PPE) in accordance with SOPs | ||
1.4 | Identify job requirements from specifications, drawings, job sheets or work instructions | ||
2 | Locate fault | 2.1 | Determine equipment/component function by reference to circuit diagrams, schematics, manual and/or consultation with technical adviser |
2.2 | Examine and interpret built-in fault indicators and error codes and record results to procedures, where appropriate | ||
2.3 | Isolate equipment in accordance with procedures from power supply | ||
2.4 | Check and test equipment/component using appropriate tools, test equipment, procedures and techniques | ||
2.5 | Interpret and verify check and test results, where required | ||
2.6 | Identify, localise and record equipment/component fault in accordance with SOPs | ||
3 | Rectify fault(s) | 3.1 | Repair, replace or adjust equipment/component/s and check and test to specification or manufacturers' requirements using appropriate tools, equipment and techniques |
3.2 | Record rectifications report in accordance with SOPs | ||
Foundation Skills
This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency.
Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.
Range Statement
This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. | |
Equipmentincludes one (1) or more of the following: | single and multi-phase motor drive and heating appliances relays coils transformers thermostats gauges illuminating devices switches circuit fuses and breakers |
Componentsinclude one (1) or more of the following: | brushes armatures windings contactors relays programmable controllers other electronic switching devices switches fuses circuit breakers relays transformers semi-conductor devices regulators motors |
Appropriate fault-finding techniquesinclude: | testing for voltage, current, frequency, polarity, phase, circuit continuity, insulation resistance and earth continuity |
Test equipmentincludes one (1) or more of the following: | continuity testers ammeters voltmeters multimeters tong testers wattmeters cathode ray oscilloscopes |
Competency Field
Maintenance and diagnostics