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Elements and Performance Criteria

  1. Prepare to service and maintain electrical components in HEVs and PHEVs
  2. Test electrical systems and components
  3. Service and maintain electrical systems and components
  4. Complete work processes
  5. Prepare to service and maintain electrical components in HEVs and PHEVs
  6. Test electrical systems and components
  7. Service and maintain electrical systems and components
  8. Complete work processes

Range Statement

This section specifies 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. Bold italicised wording, if used in the performance criteria, is detailed below.

Safety requirements must include:

work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for:

identifying hazards and controlling risks associated with:

working with high voltages on HEV and PHEV electrical systems

wearing jewellery while working around high electrical currents

determining appropriate procedures for minimising risk associated with hazards, including applying electrical safety precautions when:

using personal protective equipment (PPE), including electrical safety gloves with 1000 volt rating and Australian standards rated HV insulating mat

identifying and using firefighting equipment as appropriate

using the ‘one hand’ rule

following live system warning tags and signs

depowering vehicle

isolating HV RESS electrical supply

stabilising vehicle electrical system.

Tools and equipment must include:

those specified in the specific vehicle service maintenance procedures, including:

digital multimeter with Cat III 1000 volt rating

insulation tester

residual voltage tester, if specified in original equipment manufacturer (OEM) test requirements

scan tool.

Corrective action must include:

tightening connections

balancing state of charge

replacing faulty or damaged cable connections

removing and replacing faulty or damaged components.



Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to servicing and maintaining HEV and PHEV electrical components, including procedures for:

identifying hazards and controlling risks associated with:

working with high voltages on HEV and PHEV electrical systems

wearing jewellery while working around high electrical currents

determining appropriate procedures for minimising risk associated with hazards, including applying electrical safety precautions when:

using personal protective equipment (PPE), including electrical safety gloves with 1000 volt rating and Australian standards rated high voltage (HV) insulating mat

identifying and using firefighting equipment as appropriate

using the ‘one hand’ rule

following live system warning tags and signs

depowering vehicle

isolating HV rechargeable energy storage system (RESS) electrical supply

stabilising vehicle electrical system

requirements of AS 5732 Electric vehicle operations - Maintenance and repair

key electrical components of HEVs and PHEVs and their functions

RESS battery construction, including:

battery internal resistance

battery types

terminal corrosion

terminal resistance

key components of RESS theory, including:

cell failure theory

charging characteristics

open circuit cells

reverse polarisation

series cell configuration

strapping and layout

different types of HEVs and PHEVs, including:

series, parallel and series parallel

strong, mid or weak hybrid systems

operating principles of RESS and battery management system (BMS)

key characteristics of HV battery charger and direct current (DC) to DC converter

operating principles of power distribution unit (PDU).