This describes the essential skills and knowledge and their level required for this unit

Evidence shall show that knowledge has been acquired of safe working practices and solving problems in extralow voltage single path circuits

All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies

KSEEA Single Path dc Circuits

Evidence shall show an understanding of single path dc circuits to an extent indicated by the following aspects

T Basic electrical concepts encompassing

electrotechnology industry

static and current electricity

production of electricity by renewable and non renewable energy sources

transportation of electricity from the source to the load via the transmission and distribution systems

utilisation of electricity by the various loads

basic calculations involving quantity of electricity velocity and speed with relationship to the generation and transportation of electricity

T Basic electrical circuit encompassing

symbols used to represent an electrical energy source a load a switch and a circuit protection device in a circuit diagram

purpose of each component in the circuit

effects of an opencircuit a closedcircuit and a shortcircuit

multiple and submultiple units

T Ohms Law encompassing

basic dc single path circuit

voltage and currents levels in a basic dc single path circuit

effects of an opencircuit a closedcircuit and a shortcircuit on a basic dc single path relationship between voltage and current from measured values in a simple circuit

determining voltage current and resistance in a circuit given any two of these quantities

graphical relationships of voltage current and resistance

relationship between voltage current and resistance

T Electrical power encompassing

relationship between force power work and energy

power dissipated in circuit from voltage current and resistance values

power ratings of devices

measurement electrical power in a dc circuit

effects of power rating of various resistors

T Effects of electrical current encompassing

physiological effects of current and the fundamental principles listed in ASNZS for protection against the this effect

basic principles by which electric current can result in the production of heat the production of magnetic fields a chemical reaction

typical uses of the effects of current

mechanisms by which metals corrode

fundamental principles listed in ASNZS for protection against the damaging effects of current

T EMF sources energy sources and conversion electrical energy encompassing

basic principles of producing a emf from the interaction of a moving conductor in a magnetic field

basic principles of producing an emf from the heating of one junction of a thermocouple

basic principles of producing a emf by the application of sun light falling on the surface of photovoltaic cells

basic principles of generating a emf when a mechanical force is applied to a crystal piezo electric effect

principles of producing a electrical current from primary secondary and fuel cells

input output efficiency or losses of electrical systems and machines

effect of losses in electrical wiring and machines

principle of conservation of energy

T Resistors encompassing

features of fixed and variable resistor types and typical applications

identification of fixed and variable resistors

various types of fixed resistors used in the Electro technology Industry eg wirewound carbon film tapped resistors

various types of variable resistors used in the Electro technology Industry eg adjustable resistors potentiometer and rheostat light dependent resistor LDR voltage dependent resistor VDR and temperature dependent resistor NTC PTC

characteristics of temperature voltage and light dependent resistors and typical applications of each

power ratings of a resistor

power loss heat occurring in a conductor

resistance of a colour coded resistor from colour code tables and confirm the value by measurement

measurement of resistance of a range of variable resistors under varying conditions of light voltage temperature conditions

specifying a resistor for a particular application

T Series circuits encompassing

circuit diagram of a singlesource dc series circuit

Identification of the major components of a series circuit power supply loads connecting leads and switch

applications where series circuits are used in the Electro technology industry

characteristics of a series circuit connection of loads current path voltage drops power dissipation and affects of an open circuit in a series circuit

the voltage current resistances or power dissipated from measured or given values of any two of these quantities

relationship between voltage drops and resistance in a simple voltage divider network

setting up and connecting a singlesource series dc circuit

measurement of resistance voltage and current values in a single source series circuit

effect of an opencircuit on a series connected circuit

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 the unit and performed in accordance with the Assessment Guidelines of this Training Package

Overview of Assessment

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 industrypreferred 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 substancematerial 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 everyday 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

Before the critical aspects of evidence are considered all prerequisites must 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 UEE 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

Solve problems in extralow voltage single path circuits as described in and including

A

Determining the operating parameters of an existing circuit

B

Altering an existing circuit to comply with specified operating parameters

C

Developing circuits to comply with a specified function and operating parameters

D

Identifying loss of supply

E

Dealing with unplanned events by drawing on essential knowledge and skills to provide appropriate solutions incorporated in a holistic assessment with the above listed items

Context of and specific resources for assessment

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 in this unit

These should be used in the formal learningassessment environment

Note

Where simulation is considered a suitable strategy for assessment conditions for assessment 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 solve problems in extralow voltage single path circuits

Method of assessment

This unit shall be assessed by methods given in Volume Part Assessment Guidelines

Note

Competent performance with inherent safe working practices is expected in the Industry to which this unit applies This requires that the specified essential knowledge and associated skills are assessed in a structured environment which is primarily intended for learningassessment 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

There are no concurrent assessment recommendations for this unit

The critical aspects of occupational health and safety covered in unit UEENEEEA and other discipline specific occupational health and safety units shall be incorporated in relation to this unit

The critical aspects of occupational health and safety covered in unit UEENEEE101A and other discipline specific occupational health and safety units shall be incorporated in relation to this unit.