Unit of competency Outline

Date retreived
23/07/2026 5:00 AM AWST

Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.

Select wiring systems and cables for low voltage general electrical installations

Select wiring systems and cables for low voltage general electrical installations

Unit of competency
National Code
UEENEEG107A
State Code
S7324
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
3.00
Current Release Date
14/08/2013
State Implementation and Classification
Approved Date
29/10/2014
Field of Education
031313 - Electrical Fitting, Electrical Mechanics
Original Release Date
29/10/2014
Nominal Hours
54
Description
1) 1.1) DescriptorThis unit covers selecting wiring systems and cables for electrical installations operating at voltages up to 1,000V a.c. or 1,500 V d.c. It encompass knowledge and 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, coordination between protective devices and conductors and documenting selection decisions
Notes
Elements and Performance Criteria
1 Prepare to select wiring systems and cables for general electrical installations
  • 1.1 The extent and nature of the electrical installation is determined from job specifications.
  • 1.2 Safety and other regulatory requirements to which the electrical installation shall comply area are identified, obtained and understood.
  • 1.3 Cable routes, the route lengths of cables and the conditions in which the wiring system is to operate is determined from job specifications or from consultation with appropriate persons.
2 Select wiring systems and cables for general electrical installations
  • 2.1 Wiring systems are selected for suitability for the environments in which they are to operate.
  • 2.2 Cable conductor sizes are selected to meet current-carrying capacity requirements and voltage-drop and earth fault-loop impedance limitations.
  • 2.3 Circuit protective devices are selected to meet requirement for co-ordination with conductor current-carrying capacity.
  • 2.4 Earthing system components are selected to meet requirements of an MEN system.
  • 2.5 Evidence is obtained that electrical equipment selected complies with safety requirements.
3 Document electrical installation.
  • 3.1 Evidence is obtained from manufacturers/suppliers that electrical equipment selected complies with safety requirements.
  • 3.2 Reasons for selections made, including calculations, are documented in accordance with established procedures.
  • 3.3 Electrical installation arrangement and specifications for all selected items are documented in accordance with established procedures and forwarded to appropriate person(s).
RANGE STATEMENT
8) This relates to the unit as a whole providing the range of contexts and conditions to which the performance criteria apply. It allows for different work environments and situations that will affect performance.
This unit shall be demonstrated in relation to selecting and selecting wiring systems and cables for at least two general electrical installations comprising a main switchboard, supplying more than one circuit each for, lighting, socket outlets, and fixed appliances. One of the installations shall include a distribution board separate from the main switchboard and at least one circuit supplying a three-phase load and a fire pump.
Generic terms used throughout this Vocational Standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms that apply are given in Volume 2, Part 2.1.
EVIDENCE GUIDE
9) The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for this Training Package.
The Evidence Guide forms an integral part of this unit. It must be used in conjunction with all parts of this unit and performed in accordance with the Assessment Guidelines of this Training Package.
Overview of Assessment
9.1)
Longitudinal competency development approaches to assessment, such as Profiling, require data to be reliably gathered in a form that can be consistently interpreted over time. This approach is best utilised in Apprenticeship programs and reduces assessment intervention. It is the Industry's preferred model for apprenticeships. However, where summative (or final) assessment is used it is to include the application of the competency in the normal work environment or, at a minimum, the application of the competency in a realistically simulated work environment. It is recognised that, in some circumstances, assessment in part or full can occur outside the workplace. However, it must be in accordance with industry and regulatory policy.
Methods chosen for a particular assessment will be influenced by various factors. These include the extent of the assessment, the most effective locations for the assessment activities to take place, access to physical resources, additional safety measures that may be required and the critical nature of the competencies being assessed.
The critical safety nature of working with electricity, electrical equipment, gas or any other hazardous substance/material carries risk in deeming a person competent. Sources of evidence need to be 'rich' in nature to minimise error in judgment.
Activities associated with normal every day work have a bearing on the decision as to how much and how detailed the data gathered will contribute to its 'richness'. Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practised. These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments. Sample assessment instruments are included for Assessors in the Assessment Guidelines of this Training Package.
Critical aspects of evidence required to demonstrate competency in this unit
9.2)
Before the critical aspects of evidence are considered all prerequisites shall be met.
Evidence for competence in this unit shall be considered holistically. Each element and associated performance criteria shall be demonstrated on at least two occasions in accordance with the 'Assessment Guidelines - UEE07'. Evidence shall also comprise:
A representative body of work performance demonstrated within the timeframes typically expected of the discipline, work function and industrial environment. In particular this shall incorporate evidence that shows a candidate is able to:

Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the performance criteria and range statement
Apply sustainable energy principles and practices as specified in the performance criteria and range statement
Demonstrate an understanding of the essential knowledge and associated skills as described in this unit. It may be required by some jurisdictions that RTOs provide a percentile graded result for the purpose of regulatory or licensing requirements.
Demonstrate an appropriate level of skills enabling employment
Conduct work observing the relevant Anti Discrimination legislation, regulations, polices and workplace procedures

Demonstrated consistent performance across a representative range of contexts from the prescribed items below:

Selecting wiring systems and cables for general electrical installations as described as in 8) and including:


A
Determining the extent and nature of the installation for job specifications


B
Obtaining and understand the safety and other regulatory requirements to which the electrical installation shall comply


C
Determining cable routes, the route lengths of cables and the conditions in which the wiring system is to operate.


D
Selecting wiring system suitable for the environment requirements.


E
Selecting cable conductors sizes in consideration to current-carrying capacity and voltage-drop / earth fault-loop limitation.


F
Ensuring co-ordination between circuit protective device and conductor current-carrying capacity.


G
Selecting compliant earthing system components


H
Documenting wiring systems and cables to be used, specification for items selected and reasons for the selections made.


I
Dealing with unplanned events
Context of and specific resources for assessment
9.3)
This unit should be assessed as it relates to normal work practice using procedures, information and resources typical of a workplace. This should include:
OHS policy and work procedures and instructions.
Suitable work environment, facilities, equipment and materials to undertake actual work as prescribed by this unit.
These should be part of the formal learning/assessment environment.
Note:
Where simulation is considered a suitable strategy for assessment, conditions must be authentic and as far as possible reproduce and replicate the workplace and be consistent with the approved industry simulation policy.

The resources used for assessment should reflect current industry practices in relation to selecting and arranging equipment for general electrical installations.
Method of assessment
9.4)
This unit shall be assessed by methods given in Volume 1, Part 3 'Assessment Guidelines'.
Note: Competent performance with inherent safe working practices is expected in the industry to which this unit applies. This requires assessment in a structured environment which is primarily intended for learning/assessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and skills described in this unit.
Concurrent assessment and relationship with other units
9.5)
For optimisation of training and assessment effort, competency development in this unit may be arranged concurrently with unit:

UEENEE063A
Arrange circuits, control and protection for general electrical installations
Replaces
State Code National Code Title Type
W7885 UEENEEG007B Select and arrange equipment for general electrical installations Unit of competency
Replaced By
State Code National Code Title Type
OBY74 UEEEL0018 Select wiring systems and select cables for low voltage electrical installations Unit of competency
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