Unit of competency Outline

Date retreived
22/07/2026 8:20 AM AWST

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Select wiring systems and select cables for low voltage electrical installations

Select wiring systems and select cables for low voltage electrical installations

Unit of competency
National Code
UEEEL0018
State Code
OBY74
TGA Status
Current
DTWD Status
Approved
Current Release Number
2.00
Current Release Date
19/07/2022
View on TGA
State Implementation and Classification
Approved Date
12/07/2021
Field of Education
031313 - Electrical Fitting, Electrical Mechanics
Original Release Date
12/07/2021
Nominal Hours
54
Description
This unit involves the skills and knowledge required to select wiring systems and cables for electrical installations operating at voltages up to 1,000 volt (V) alternating current (a.c.) or 1,500 V direct current (d.c.).It includes application of wiring systems and cable types, selecting wiring system compatible with the installation conditions, selecting cables that comply with required current-carrying capacity and voltage drop and earth fault-loop impedance limitations, coordinating between protective devices and conductors, and documenting selection decisions.The skills and knowledge described in this unit require a licence or permit to practice in the workplace where work is carried out on electrical installations which are designed to operate at voltages greater than 50 V a.c. or 120 V d.c..Competency development activities in this unit are subject to regulations directly related to licensing. Where a licence or permit to practice is not held, a relevant contract of training, such as an Australian Apprenticeship, may be required.Additional and/or other conditions may apply in some jurisdictions subject to regulations related to electrical work. Practice in the workplace and during training is also subject to work health and safety (WHS)/occupational health and safety (OHS) regulations.
Notes
Elements and Performance Criteria
1 Plan wiring systems for general electrical installations
  • 1.1 Scope and nature of the electrical installation is determined from job specifications
  • 1.2 WHS/OHS requirements and workplace procedures and other regulatory requirements are identified and applied
  • 1.3 Cable routes, the route lengths of cable, and the conditions in which the wiring system is to operate is determined from job specifications or from consultation with appropriate person/s
2 Select wiring systems and cables for general electrical installations
  • 2.1 Wiring system is selected and suitable for the environments in which it will operate
  • 2.2 Cable conductor sizes are selected to meet current-carrying capacity requirements and voltage-drop and earth fault-loop impedance limitations in accordance with relevant industry standards
  • 2.3 Circuit protective devices are selected to meet requirement for co-ordination with conductor current-carrying capacity in accordance with relevant industry standards
  • 2.4 Earthing system components are selected to meet multiple earthed neutral (MEN) system in accordance with relevant industry standards
3 Document electrical installation
  • 3.1 Manufacturer data is referenced in selection of equipment to ensure materials comply with safety requirements and relevant industry standards
  • 3.2 Rationale for wiring system selections and calculations are documented in accordance with workplace procedures
  • 3.3 Electrical installation arrangement and specifications for all selected items are documented in accordance with workplace procedures and forwarded to appropriate person/s
No information
No information
Replaces
State Code National Code Title Type
S7324 UEENEEG107A Select wiring systems and cables for low voltage general electrical installations Unit of competency