MEM10018 — Select cable types and sizes to suit loads and electrical installation environment

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What an assessment for MEM10018 must cover

68 assessable components: 2 elements (9 performance criteria), 16 performance evidence and 43 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 Determine job requirements

1.1Follow standard operating procedures (SOPs)
1.2Comply with work health and safety (WHS) requirements at all times, including appropriate risk control measures
1.3Use appropriate personal protective equipment (PPE) in accordance with SOPs
1.4Identify job requirements from specifications, drawings, job sheets or work instructions

2 Select wiring systems and cables for electrical installation work and equipment

2.1Select wiring systems to suit loads and electrical installation work environment
2.2Select cable conductor sizes based on current-carrying capacity, short circuit capacity, maximum demand, voltage drop and earth fault-loop impedance in accordance with regulatory requirements
2.3Select circuit protective devices based on current-carrying capacity requirements of the selected cables
2.4Select earthing system parts to meet the multiple earth neutral (MEN) system
2.5Document selection of cable types and sizes and installation requirements in accordance with SOPs

Performance evidence

following work instructions, standard operating procedures (SOPs) and safe work practices
identifying and interpreting circuits, drawings, plans and specifications relevant to the work to be undertaken
determining the cable routes, length and conditions in which the wiring system is to operate
complying with relevant Australian/New Zealand Wiring Rules, Cable Selection and Service Rules when selecting cables ensuring coordination between protective devices and conductors in regard to the following aspects:
design of the circuit taking into account the safety considerations
determining the final subcircuit arrangements
determining the factors affecting suitability of wiring systems
calculating the maximum demand on consumer mains/submains
calculating the current-carrying capacity requirements
calculating the voltage drop requirements
calculating the expected fault loop impedance
selecting cables to satisfy voltage drop, current-carrying capacity and fault loop impedance requirements
selecting the appropriate protection devices
selecting the appropriate isolation devices and switching arrangements
selecting earthing system parts to meet the multiple earthed neutral (MEN) system
documenting reasons for selection and installation requirements in accordance with SOPs

Knowledge evidence

safe work practices and procedures and use of personal protective equipment (PPE)
Australian/New Zealand Wiring Rules, AS/NZS 3008.1.1:2009 Electrical Installations – Selection of cables – Cables for alternating voltages up to and including 0.6/1 kV – typical Australian installation conditions and other related standards in regards to the following:
design and safety performance requirements, including:
protection of persons, livestock and property from harmful effects
correct functioning of the electrical installation for intended use
compatibility with the electricity distribution system, or other source of supply, to which the electrical installation is to be connected
type of insulation required:
thermoplastic
elastomer
cross-linked polyethylene (XLPE)
mineral- insulated metal sheath (MIMS)
high temperature
supply characteristics
reasons for dividing installations into circuits and factors that determine their number and type
external influences that may damage installation and be considered in the design, including applying derating factors caused by the effect of:
grouping of cables
ambient temperature
depth of laying
thermal resistivity of soil
varying of loads
thermal insulation
direct sunlight
acceptable methods of protection against risks of ignition of flammable materials
likely sources of unwanted voltages and methods of dealing with this potential hazard
requirements for protection against fault current
protection against harmful effects of faults between live parts of circuits supplied at different voltages
mechanical movement protection
fire rated construction and how integrity of fire rating can be maintained
final subcircuit arrangements, including:
factors to consider when determining the number and type of circuits required
daily and seasonal demand for lighting, power, heating and other loads in a given installation
factors affecting current-carrying capacity of cables
layout/schedule of circuits
factors affecting suitability of wiring systems
acceptable methods of determining maximum demand on an installation’s consumer’s mains and submains up to 400 A per phase
external factors that require the use of a derating factor when determining current-carrying capacity
requirements for maximum voltage drop in an installation and relevant tables for unit values of voltage drop
requirements for maximum fault loop impedance in an installation and the relevant tables to determine cable impedances
accepted methods used against indirect contact when selecting protection devices to protect against overload and short circuit current situations
provision of isolation of every circuit for a range of installations and conditions
earthing system parts including the selection of earth electrode, main earthing conductor, main earthing terminal/connection or bar, MEN link, protective earthing conductors and equipotential bonding
effects of harmonic current on current-carrying capacity
conditions where short circuit performance may need to be considered.

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 MEM10018

What does an assessment tool for MEM10018 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for MEM10018 needs to address all 68 unit components: 2 elements with 9 performance criteria, 16 performance evidence requirements, 43 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 MEM10018?

Auditori pulls the current release of MEM10018 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 MEM10018 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing MEM10018 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 MEM10018, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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