Release 1. This is the first release of this unit of competency in the UEE Electrotechnology Training Package.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least two separate occasions and include:

• altering an existing circuit to comply with specified operating parameters
• applying Ohm’s Law to solve problems in direct current (d.c.) single path circuits
• applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including identifying risks and applying risk control measures
• calculating resistance of a conductor from factors such as conductor length, cross-sectional area, resistivity and changes in temperature and material
• connecting analogue/digital ammeter into a circuit ensuring the polarities are correct to take current readings
• connecting a series d.c. circuit containing capacitor and resistor to determine the time constant of the circuit
• calculating quantities from given information to determine capacitance, energy and voltage
• calculating one time constant as well as the time taken to fully charge and discharge a given capacitor
• calculating equivalent capacitance of capacitors connected in series and parallel circuits
• dealing with unplanned events in accordance with workplace procedures in a manner that minimises risk to personnel and equipment
• demonstrating graphical relationships of voltage, current and resistance
• calibrating and using measuring device in accordance with manufacturer specifications
• determining the operating parameters of an existing circuit
• developing circuits to comply with a specified function and operating parameters
• identifying and applying electrical industry standard symbols to represent electrical components in circuit diagram
• identifying fixed and variable resistors, including:

• determining resistance of a colour coded resistor from colour code tables and confirming the value by measurement
• measuring resistance of variable resistors under varying conditions of light, voltage and/or temperature
• selecting a resistor for an application

• solving problems in series and series-parallel circuits, including:

• developing, setting up and connecting a single source d.c. series-parallel circuit
• measuring voltage and current
• calculating resistance, voltage, current and power from measured and/or given values of any two of these quantities in a single source series-parallel circuit

• using test equipment to confirm the effect of material length, cross-sectional area and temperature on the resistance of conductive materials
• selecting an appropriate meter in terms of units to be measured, range, loading effect and accuracy for a given application
• using measuring devices to Solve problems in direct current circuits
• using meters for problem solving, including measuring resistance using direct, volt-ammeter and/or bridge methods
• using methodical techniques to solve d.c. circuit problems from measured and calculated values.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

• electrical concepts, including:

• calculations involving quantity of electricity, velocity and speed
• distribution of electricity from the source to the load via the transmission systems
• principle of conservation of energy
• production of electricity, including:

• renewable and non-renewable energy sources
• static and current electricity

• utilisation of electricity by the various loads

• electrical circuit, including:

• industry standard symbols used to represent components in an electrical circuit diagram
• multiple and sub-multiple units
• purpose of each component in the electrical circuit

• Ohm’s Law, including:

• d.c. single path circuit
• determining voltage, current and resistance in a circuit
• effects of an open circuit, a closed circuit and a short circuit on a d.c. single path
• relationship between voltage and current from measured values in a circuit
• graphical relationships of voltage, current and resistance
• relationship between voltage, current and resistance
• voltage and current levels in a d.c. single path circuit

• electrical power, including:

• effects of power rating of various resistors
• methods for measuring of electrical power in a d.c. circuit
• power dissipated in circuit from voltage, current and resistance values
• power ratings of electrical devices
• relationship between force, power, work and energy

• effects of electrical current, including:

• relevant industry standards relating to fundamental principles for protection against the damaging effects of current
• mechanisms by which metals corrode
• principles by which electric current can result in the production of:

• heat
• magnetic fields
• a chemical reaction

• typical uses of electrical current
• physiological effects of current

• electromotive force (EMF) sources and conversion of electrical energy, including:

• input, output, efficiency and losses of electrical systems and machines
• principles of generating an EMF, including:

• when a mechanical force is applied to a crystal
• when moving a conductor in a magnetic field
• by the application of light falling on the surface of photovoltaic (PV) cells
• from the heating of one junction of a thermocouple

• principles of producing an electrical current from primary, secondary and fuel cells

• resistors, including:

• types and applications of fixed and variable resistors used in the electrotechnology industry
• characteristics of variable resistors used in the electrotechnology industry, including:

• adjustable resistors: potentiometer and rheostat
• light dependent resistor (LDR)
• voltage dependent resistor (VDR)
• temperature dependent resistor

• power ratings of a resistor
• power loss (heat) occurring in a conductor
• resistor colour code tables

• series, parallel, and series-parallel circuits, including:

• applications where these circuits are used in the electrotechnology industry
• characteristics of series, parallel, and series-parallel circuits, including:

• connection of loads
• current path
• voltage drops
• power dissipation
• effects of an open circuit

• diagrams of single source d.c. series, parallel, and series-parallel circuits
• identification of the components of series, parallel, and series-parallel circuits, including power supply, loads, connecting leads and switch
• relationship between voltage drops and resistance in a simple voltage divider network
• techniques for determining voltage, current, resistances or power dissipated from measured or given values (of any two of these quantities)
• relationship between branch currents and resistances in a two-branch parallel and series-parallel current divider network

• factors affecting the resistance of a conductor, including:

• conductor length
• cross-sectional area
• resistivity
• changes in temperature and material
• effect the change in cross-sectional area, length and type of material has on the resistance of a conductor
• effects of resistance on the current-carrying capacity and voltage drop in cables
• effects of temperature change on the resistance of various conducting materials

• effects of measuring devices in a circuit, including:

• advantages and disadvantages of each voltage indicator tester
• calibration and use of the measuring device
• methods for connecting an analogue/digital voltmeter into a circuit ensuring the polarities are correct and taking various voltage readings
• correct techniques to read the scale of an analogue meters and how to reduce the ‘parallax’ error
• hazards associated with the use of measuring devices, including polarity
• hazards involved in using electrical instruments and the safety control measures that should be taken
• instruments used in the field to measure voltage, current, resistance and insulation resistance and the typical circumstances in which they are used
• methods for using insulation resistance measuring devices to relevant industry standards
• loading effect of various voltmeters when measuring voltage across various loads
• methods for measuring resistance using direct, volt-ammeter and bridge methods
• non-contact voltage indicator types and use
• operating characteristics of analogue and digital meters
• connecting an analogue/digital voltmeter into a circuit ensuring the polarities are correct and taking various voltage readings
• operation of various voltage indicator testers
• purpose and characteristics of a voltmeter
• purpose of an ammeter and the correct connection (series) of an ammeter into a circuit
• reasons the internal resistance of an ammeter must be extremely low and the dangers and consequences of connecting an ammeter in parallel and/or wrong polarity
• methods for selecting an appropriate meter in terms of units to be measured, range, loading effect and accuracy for a given application
• types of voltage indicator testers, including light-emitting diode (LED), neon, solenoid, volt-stick and series tester and the purpose of each voltage indicator tester
• methods for using voltage indicator testers to detect the presence of various voltage levels

• capacitors and capacitance, including:

• construction of a standard capacitor
• different types of dielectric material and each dielectric’s relative permittivity
• types of capacitors commonly used in the electrotechnology industry
• industry standard symbol of various types of capacitors, including standard, variable, trimmer and polarised
• terms and units for capacitance, electric charge and energy
• factors affecting capacitance
• behaviour of a series d.c. circuit containing resistance and capacitance components. - charge and discharge curves
• arrangement of a series d.c. circuit containing capacitance and resistor to determine the time constant of the circuit

• capacitors in series and parallel, including:

• application of capacitors in the electrotechnology industry
• common faults in capacitors
• arrangement of capacitors in series and/or parallel configurations to achieve various capacitance values
• equivalent capacitance of capacitors connected in series and parallel
• effects of capacitors connected in parallel by calculating their equivalent capacitance
• effects on the total capacitance of capacitors connected in series by calculating their equivalent capacitance
• hazards involved in working with capacitance effects and the safety control measures that should be taken, including safe handling and the correct methods of discharging various size capacitors, dangers of a charged capacitor and the consequences of discharging a capacitor through a person
• testing of capacitors to determine serviceability.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

• a range of relevant exercises, case studies and/or other simulations
• relevant and appropriate materials, tools, equipment (including single source series, parallel and series-parallel d.c. circuits) and personal protective equipment (PPE) currently used in industry
• applicable documentation, including workplace procedures, equipment specifications, manufacturer instructions, regulations, codes of practice and operation manuals.

Release 1. This is the first release of this unit of competency in the UEE Electrotechnology Training Package.

This unit involves the skills and knowledge required to plan and supervise the repair and overhaul of explosion-protected equipment type pressurised (Ex p). It includes liaising with equipment users to establish and document the level of work required; writing specifications for the repair and overhaul and arranging for repairs to be carried out; verifying compliance of repaired and overhauled equipment; and completing all the required documentation. It is adopted from clause 2.22 of AS/NZS 4761.1:2018 Competencies for working with electrical equipment for hazardous areas (EEHA).

This unit applies to electrical equipment repair workshop supervisory job function, designated the ‘responsible person’.

Site-specific work permits maybe required to work in the hazardous environment. In addition, other permits may be required, such as confined space and to operate specific pieces of equipment such as elevated work platforms (EWPs) in various jurisdictions.

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.

UEEHA0003 Determine the explosion-protection requirements to meet a specified classified hazardous area

and

UEEEL0039 Design, install and verify compliance and functionality of general electrical installations

or

UEEEL0028 Conduct compliance and functional verification of electrical apparatus and existing circuits

or

UEEIC0048 Verify compliance and functionality of instrumentation and control installations

Hazards

Electrotechnology

ELEMENTS 

PERFORMANCE CRITERIA 

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1 

Prepare for repair and overhaul of equipment 

1.1 

Repair facility quality assurance system is obtained, interpreted and applied

1.2 

Instructions on repair and/or overhaul are received and expected outcomes of the work confirmed with the user

1.3 

All documentation relevant to the equipment repair and/or overhaul is obtained, interpreted and applied

1.4 

Where adequate relevant equipment information is not available, steps taken to source such information are documented

1.5 

Agreement is made with the user for the repair and/or overhaul of Group II and III equipment to be completed in accordance with standards where adequate documentation is not available

1.6 

The common requirements for equipment repair and overhaul are ascertained from relevant standards and regulations and applied to the preparation for the work only where this arrangement is permitted

2 

Establish the level of repair/overhaul required 

2.1 

Safe work methods are applied to measurements, tests and inspections carried out on the equipment to establish the extent of repair and/or overhaul

2.2 

The requirements, evaluation procedures and parameters of the type of equipment to be repaired and/or overhauled are ascertained from relevant standards and regulations and applied to establishing the extent of the work

2.3 

Measurement devices and instruments are maintained and calibrated in accordance with recognised practices

2.4 

The extent of work to be done is established from measurements, tolerances and evaluation procedures and their correspondence with equipment documentation and the requirements of standards

2.5 

Specifications and instructions for the repair and/or overhaul work are documented ensuring compliance with original documentation, standards and user instructions

3 

Arrange repair and overhaul work 

3.1 

Arrangements are made for the repair and overhaul work to be completed in accordance with the specification and instructions, by an operative with the competencies specified in standards

3.2 

A copy of repair and/or overhaul specifications and instructions is provided to the operative responsible for completing the work

4 

Verify that equipment complies with original certification 

4.1 

Scope and level of testing and measurements required to verify that overhauled and/or repaired equipment complies with original certification is determined in accordance with manufacturers’ documentation and standards requirements as applicable to an equipment group

4.2 

Verification tests and measurements are arranged, conducted and documented in accordance with equipment type standards and instruction manuals

4.3 

Results of verification tests and measurements are reviewed to ascertain whether they comply with original equipment documentation and/or agreement with the user

4.4 

Actions are taken to rectify any non-compliance identified through the verification tests and measurements

5 

Document repair and overhaul work 

5.1 

Equipment is marked to show it has been repaired and/or overhauled in accordance with standards and applicable to an equipment group

5.2 

Job report of the completed repair and/or overhaul is prepared in accordance with standards and submitted to the user for inclusion in their verification dossier

5.3 

Repair facility records are updated to include the job record in accordance with standards and quality system

5.4 

The steps taken to obtain the certificate documents where adequate equipment documentation was not available is included in the repair facility records

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Supervising repair and overhaul of explosion-protected equipment type pressurised (Ex p) must:

• apply to the supervision of overhaul and repair of explosion-protected equipment
• be carried out under an approved quality management system
• include access to all relevant standards and liaison with end-users

No equivalent unit.

Release 1. This is the first release of this unit of competency in the UEE Electrotechnology Training Package.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least two separate occasions and include:

• preparing for repair and overhaul work of equipment, including:

• following quality assurance system procedures
• gathering required documentation

• establishing the level of repair and overhaul required, including:

• following safe work methods
• examining equipment submitted for repair and overhaul using appropriately maintained measuring devices and instruments
• documenting the specification for the repair and overhaul

• arranging repair and overhaul work, including:

• selecting appropriately competent operatives to carry out repair and/or overhaul, including reclamation activities
• providing operative with the repair and/or overhaul specifications

• verifying that equipment complies with original certification, including:

• choosing the scope and level of tests and measurements required to verify whether the repaired and/or overhauled equipment complies with original documented requirements
• arranging for verification of compliance tests and measurements to be carried out
• reviewing results of verification tests and taking actions to rectify any non-compliance identified by the verification tests and measurements

• documenting repair and overhaul work/ including:

• marking equipment in accordance with standard requirements to show that equipment has been repaired
• preparing job report of the completed repair and overhaul/ including all items specified by standards and submitted to the user
• updating the repair and overhaul undertaken in the repair facility records/ including steps taken to obtain equipment documentation as required by standards.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

• repair and overhaul of explosion-protected equipment (common requirements). including:

• common requirements for repair and overhaul work of explosive-protected equipment encompassing:

• equipment with documentation and without documentation
• statutory requirements for repair facility and user
• instructions for the user
• instructions for the repair facility

• identification of repaired equipment by marking encompassing:

• marking information
• symbols in accordance with standards requirements
• other situations

• requirements for the repair and overhaul of equipment with protection level (EPL) Ga
• limitations and requirements for the repair and overhaul of equipment with type of protection special ‘s’

• repair and overhaul of explosive-protected equipment type pressurised ‘p’, including:

• additional requirements for the repair and overhaul of equipment with type of protection Ex ‘p’ encompassing:

• application
• repair and overhaul requirements
• reclamation
• alterations and modifications

• evaluation procedures and parameters encompassing:

• testing requirements and methods
• service facilities’ established requirements

• repair and overhaul of explosive-protected equipment type non-sparking ‘n’, including:

• additional requirements for the repair and overhaul of equipment with type of protection Ex ‘n’ encompassing:

• application
• repair and overhaul requirements
• reclamation
• alterations and modifications

• evaluation procedures and parameters encompassing:

• general requirements
• Ex ’n’ enclosures
• electrical equipment installed within Ex ‘n’ enclosures

• repair and overhaul of explosive-protected equipment type pressurisation ‘pD’, including:

• additional requirements for the repair and overhaul of equipment with type of protection Ex ‘pD’ encompassing:

• application
• repair and overhaul requirements
• reclamation
• alterations and modifications

• repair and overhaul of explosive-protected equipment type encapsulation ‘m’, including:

• requirements for the repair and overhaul of equipment with type of protection Ex ‘m’ encompassing:

• application
• repair and overhaul requirements
• reclamation
• alterations and modifications

• repair and overhaul of explosive-protected equipment type oil-filled ‘o’, including:

• requirements for the repair and overhaul of equipment with type of protection Ex ‘o’ encompassing:

• application
• repair and overhaul requirements
• reclamation
• alterations and modifications

• repair and overhaul of explosive-protected equipment type powder-filled ‘q’, including:

• requirements for the repair and overhaul of equipment with type of protection Ex ‘q’ encompassing:

• application
• repair and overhaul requirements
• reclamation
• alterations and modifications.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

• a range of relevant exercises, case studies and/or other simulations
• relevant and appropriate tools and testing devices and personal protective equipment (PPE) currently used in industry
• safe work methods
• a certified quality management system
• documentation and record systems required of a workshop certified to undertake repair and overhaul of explosive-protected equipment
• relevant equipment standards and manufacturer’s data
• equipment to be repaired/overhauled.