UEEEL0018 — Select wiring systems and select cables for low voltage electrical installations

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What an assessment for UEEEL0018 must cover

107 assessable components: 3 elements (10 performance criteria), 31 performance evidence and 66 knowledge evidence requirements. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.

Elements & performance criteria

1 Plan wiring systems for general electrical installations

1.1Scope and nature of the electrical installation is determined from job specifications
1.2WHS/OHS requirements and workplace procedures and other regulatory requirements are identified and applied
1.3Cable 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

2.1Wiring system is selected and suitable for the environments in which it will operate
2.2Cable 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
2.3Circuit protective devices are selected to meet requirement for co-ordination with conductor current-carrying capacity in accordance with relevant industry standards
2.4Earthing system components are selected to meet multiple earthed neutral (MEN) system in accordance with relevant industry standards

3 Document electrical installation

3.1Manufacturer data is referenced in selection of equipment to ensure materials comply with safety requirements and relevant industry standards
3.2Rationale for wiring system selections and calculations are documented in accordance with workplace procedures
3.3Electrical installation arrangement and specifications for all selected items are documented in accordance with workplace procedures and forwarded to appropriate person/s

Performance evidence

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures and practices, including using of risk control measures
applying sustainable energy principles and practices
calculating the expected voltage drop in a given circuit
calculating the expected fault-loop impedance for a given circuit arrangement
selecting cables to satisfy voltage-drop requirements in addition to current-carrying capacity requirements
selecting cables to satisfy fault-loop impedance requirements in addition to current-carrying capacity requirements and voltage drop requirements
selecting conductor size based on the maximum current requirement for a given installation condition
determining the extent and nature of the installation for job specifications
determining cable routes, the route lengths of cables and the conditions in which the wiring system is to operate
determining the number and types of circuits required for a particular installation
determining current requirements for given final sub-circuits
determining layout/schedule of circuits for given installations
selecting wiring system suitable for the installation environment
selecting cables, including voltage-drop, fault-loop impedance and minimum conductor size to satisfy current-carrying capacity
selecting compliant earthing system components
dealing with unplanned events in accordance with workplace procedures in a manner that minimises risk to personnel, equipment
determining maximum demand for consumer mains and sub-mains final for an installation in accordance with industry and regulatory standards
determining maximum demand for final sub-circuits for an installation in accordance with industry and regulatory standards
documenting electrical installation design
identifying and applying installation requirements for switchboards in accordance with industry and regulatory requirements
identifying layout/schedule of circuits for low voltage (LV) electrical installation
arranging installation loads onto separate circuits
identifying performance requirements for an electrical installation to comply with safety and regulatory requirements
selecting cables for consumer mains, sub-mains and to meet maximum demand and installation conditions, including any derating factors
selecting cables for final sub-circuits to meet maximum demand and installation conditions, including any derating factors
determining suitability of the cable insulation
selecting circuit protection devices to satisfy maximum demand and coordination in accordance with industry and regulatory requirements
selecting circuit protection devices to satisfy requirements for discrimination, fault protection and overcurrent
selecting control and isolation devices to satisfy AS/NZS 3000 requirements for a range of loads and environmental conditions
selecting isolation and control devices as required by the designed installation and in accordance with industry and regulatory requirements
applying the requirements of the relevant industry standards, including AS/NZS 3000, to all work tasks.

Knowledge evidence

design and safety performance requirements, including:
harmful effects against which the electrical installation design must provide protection
electrical installation performance standards
supply characteristic considerations when designing an electrical installation
methods to determine maximum demand in consumer mains, sub-mains and final subcircuits
reason for dividing electrical installations into circuits and the factors that determine their number and type
external factors that may damage an electrical installation
methods for protecting persons and livestock against direct and indirect contact with conductive parts and the typical application of each
methods to protect against risk of ignition of flammable materials and injury by burns from the thermal effects of current in normal service
likely sources of unwanted voltages and the methods for dealing with this potential hazard
methods for protecting persons and livestock against injury and property against damage from the effects of overcurrent
requirements for protection against fault current
requirements for protection against the harmful effects of faults between live parts of circuits supplied at different voltages
need for protection against injury from mechanical movement and how this may be achieved
features of ‘fire rated construction’ and how the integrity of the fire rating can be maintained in relation to electrical installation
final sub-circuit arrangements including:
considerations when determining the number and type of circuits for an installation
daily and seasonal demand for lighting, power, heating and other loads in an installation
number and types of circuits required for a particular installation
current requirements for given final sub-circuits
layout/schedule of circuits for given installations
factors effecting the suitability of wiring systems, including:
wiring systems used for particular construction methods and environments
installation conditions that may affect the current-carrying capacity of cables
external influences that may affect the current-carrying capacity and/or may cause damage to the wiring system
AS/NZS 3000 requirements for selecting wiring systems for a range of circuits, installation conditions and construction methods into which the wiring system is to be installed. Note: Wiring systems include cable enclosures, underground wiring, aerial wiring, catenary support, emergency systems, busbar trunking and earth sheath return
maximum demand on consumer mains/sub-mains, including:
methods for determining the maximum demand on an installation’s consumer mains and sub-mains
maximum demand for the consumer mains for given installations up to 400 ampere (A) per phase
maximum demand for given sub-mains
cable selection based on current-carrying capacity requirements, including:
installation conditions for a range of wiring systems and applications
external influences that require the use of a derating factor
suitability of the cable insulation
AS/NZS 3000 requirements for coordination of cables and protection devices
AS/NZS 3008 Electrical installations - Selection of cables, used to select conductor size based on the maximum current requirement for a given installation condition, including any applicable derating factors
cable selection based on voltage-drop requirements including:
AS/NZS 3000 requirements for maximum voltage-drop in an installation
relevant tables in AS/NZS 3008 Electrical installations - Selection of cables, for unit values of voltage-drop
cable selection based on fault-loop impedance requirements, including:
AS/NZS 3000 requirements for maximum fault-loop impedance in an installation
relevant tables in AS/NZS 3008 Electrical installations - Selection of cables, to determine cable impedances
selecting protection devices, including:
acceptable methods of protection against indirect contact
AS/NZS 3000 requirements for selecting methods and devices to protect against indirect contact for a range of installation types and conditions
coordination between conductors and protection devices to ensure the protection of cables from overheating due to overcurrent
possible injuries to persons and livestock from hazards due to a short circuit
AS/NZS 3000 requirements for selecting devices to protect against overload current for a range of circuits and loads
AS/NZS 3000 requirements for selecting devices to protect against short circuit current for a range of installation conditions
selecting devices for isolation and switching, including:
requirements for the provision of the isolation of every circuit in an electrical installation
need for protection against mechanical movement of electrically activated equipment
AS/NZS 3000 requirements for selecting devices for isolation and switching for a range of installations and conditions
switchboards, including:
AS/NZS 3000 and local supply authority requirements for switchboards
tariff structures for the supply of electricity
equipment installed at the main switchboards with capacities up to 400 A per phase
layout of a main switchboard for an installation supplied with:
single phase single tariff whole current metering
single phase multiple tariff whole current metering
multi-phase single tariff whole current metering
multi-phase multiple tariff whole current metering
layout of a main switchboard for a multiple tenancy installation with whole current metering
layout of a main switchboard, including metering, for an installation supplied with three phase current transformer metering
local supply authority requirements for connection of an electrical installation to electrical supply system
relevant manufacturer specifications

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

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Questions about assessing UEEEL0018

What does an assessment tool for UEEEL0018 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for UEEEL0018 needs to address all 107 unit components: 3 elements with 10 performance criteria, 31 performance evidence requirements, 66 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for UEEEL0018?

Auditori pulls the current release of UEEEL0018 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for UEEEL0018 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing UEEEL0018 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of UEEEL0018, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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