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 verifying compliance and functionality of general electrical installations

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

KSEGA Electrical installations verification and testing

Evidence shall show an understanding of electrical installations testing and verification to an extent indicated by the following aspects

T Electrical safety encompassing

Safety procedures for working on electrical systems circuits and apparatus

Safe working practices as a normal part of carrying out electrical installation work

Isolation and lockout procedures

Tools and equipment needed to conduct electrical installation compliance inspection and testing

T Legislated regulations encompassing

legislation and regulations that require installations and equipment to be inspected and tested to ensure they are safe

the personbodies responsible for the various aspects of ensuring electrical installations are safe

results of tests that show an electrical installation is safe for connection to the supply

results of periodic inspection and tests that show construction site wiring and equipment is safe to use

results of periodic inspection and tests that show electrical equipment are safe to use

T Visual inspection of installations for compliance with the Wiring Rules encompassing

Protection requirements

General condition

Consumers mainssubmains

Switchboards

Wiring systems

Equipment and accessories

Earthing

T Testing installations encompassing

tests to ensure insulation resistance is adequate earth continuity is such that it will ensure the operation of protection devices under earth fault conditions polarity of actives and neutral for mains submains and final subcircuits is correct there is no transposition of earthing and neutral conductors faultloop impedance is sufficiently low RCD for correct operation and sensitivity

functional tests to ensure actives and neutral for the same circuit are clearly identified with their circuit protection device

tests that show all circuits and devices operate as intended

tests to determine the fault level at a particular point in an installation

T Documentation encompassing

results of tests conducted on an installation to comply with requirements and ensure the installation is safe

documents of the results of testing an installation as required by the local supply authority

documents of periodic inspection and testing of construction site wiring and equipment in accordance with requirement

documents of periodic testing and inspection of electrical equipment including tagging requirements

KSEGA Electrical installations and equipment principles and requirements

Evidence shall show an understanding of electrical installations and equipment principles and requirements to an extent indicated by the following aspects

T Effects of electric current encompassing

Physiological effects of current

Basic principles by which an electric current can produce heat light motion and a chemical reaction

T Single path practical circuit encompassing

Arrangement of energy source protection device switch and load in a circuit

The purpose of each component in the circuit

Consequences of an opencircuits closedcircuits and shortcircuits

T Singlesource multiplepath dc circuits encompassing

Circuit configurations and connection

Relationship between the parameters of voltage current resistance and power dissipation in the whole or any part of the circuit

Safely measuring the parameters for the whole or any part of the circuit

Methods of determining circuit behaviour for variation in any of the parameters from measured and calculated values

T Alternating voltage and current generation phase relationships energy in an ac circuit encompassing

Sinusoidal voltage generation and resulting current

The terms period maximum value peaktopeak value instantaneous value average value rootmeansquare rms value and frequency

Threephases generation

Relationship between the phase voltages generated in a threephase alternator and the conventions for identifying each

Method of determining the phase sequence or phase rotation of a threephase supply

Methods of determining power and energy supplied by three phase circuits

T Fundamental safety principles of the ASNZS Part Section and deemed to comply solution given in Part encompassing

Definition of terms

Fundamental safety principles of protection against direct and indirect contact with live parts thermal effects overcurrent earth faults abnormal voltages spread of fire mechanical injury and external influences

Fundamental principles of installation design selection and installation of equipment means of compliance including alterations additions and repairs and verification of compliance

T Electric motor selection starting method and overload protection encompassing

Types of motor enclosures suitable for given environmental conditions

Criteria for selecting motor starters and overload protection

Types and connection arrangements for directonline and reduced voltage starters

Thermal magnetic and thermistor overload protection methods

T Ability to apply ASNZ requirements for protective and functional earthing encompassing

Purpose of protective and functional earthing

Parts of the protective earthing systems

Earthing arrangements earthing of equipment and equipotential bonding

Methods of determining the maximum fault loop impedance for a circuit

Selection of protective conductor and active conductor sizes for each circuit to ensure earthfault loop impedance is sufficiently low to operate the circuit protective device

T MEN system and its application encompassing

The roles of the protective earthing PE and neutral N conductors in an a consumers installation and their relationship to the protective earth neutral PEN conductor in the electricity distributors system or submain to an outbuilding

The importance of the MEN link when a fault occurs

The likely consequences of the absence of the MEN link or high impendence in the PEN conductor when a fault occurs

The requirements for installation of an MEN link in an installation and an outbuilding

T Knowledge of the application of transformers encompassing

Transformers used in distribution and transmission systems and large consumer installations

Transformers used in welding machines

Applications in appliances

Risks and safety control measures associated with connection and disconnection of instrument transformers

Safe working procedures when connecting and testing transformers

ASNZS requirements and restriction on the installation and use of transformers

T Ability to apply ASNZ requirements for protection of circuit against overcurrent and abnormal voltages encompassing

Minimum fault levels specified by electricity distributors

Methods and arrangement for protection against shortcircuit currents and overload currents

Coordination of overload and shortcircuit protection devices

Coordination between conductors and overload protection devices

Causes of over and undervoltage

Device and requirements for protection against over and undervoltage

T Additional protection by use of RCDs and use of extralow voltage for basic and fault protection encompassing

Limitation of an RCD to protect against contact with live parts

ASNZS requirements for use of RCDs

Conditions for use of extralow voltage to provide for basic and fault protection

ASNZS requirements for installation of SELV and PELV systems

T Ability to select cables for single and three phase mains and submains for single and multiple installations that comply with requirements of ASNZS and ASNZS encompassing

Methods of determining maximum demand

Types of cables available

Installation methods and external influences effecting cable currentcarrying capacity

Voltage drop limitation

Shortcircuit performance consideration

T Ability to select cables for final subcircuits that comply with requirements of ASNZS and ASNZS encompassing

Maximum demand of final subcircuits

Types of cables available

Installation methods and external influences effecting cable currentcarrying capacity

Effect of earthfault loop impedance and voltage drop limitations on circuit route length

Shortcircuit performance considerations

T Ability to apply ASNZS requirements for control and protection of installations encompassing

Devices for functions of isolation emergency Mechanical maintenance and functional control

Method for assessing prospective short circuit current

Devices and arrangement for protection against overload and shortcircuit current

Additional protection by RCD

Protection against switchboard internal arc faults

T Ability to apply ASNZS requirements for the installation of electrical equipment in given damp situations encompassing

Limitation of installation of equipment in classified zones

Selection and location of equipment suitable for installation in given classified zones

Additional protection by RCD

Equipotential bonding in showers and bathrooms and swimming and spa pools

T Ability to install modify and test electrical equipment for construction and demolition sites complying with ASNZS and applicable workplace safety legislation encompassing

Supply and installation requirements

Protection of circuits

Initial and periodic inspection and testing

Portable tool safety testing and tagging system in accordance with ASNZS

T Knowledge of ASNZS requirements for the installation of aerial conductors and underground wiring encompassing

Types and application of aerial conductors

Aerial span limitations and required clearances

Selection of aerial supporting polespost and struts for a given application

Use and requirements of catenary support systems

Acceptable cable types and protection for underground wiring categories

Underground wiring depth layer and protection

Underground wiring clearances from other services

T Knowledge of ASNZS requirements for electrical installations in hazardous areas encompassing

Types of areas classified as a hazardous area

Standards to which the selection installation and maintenance of electrical equipment shall comply

Additional training required to work competently with electrical equipment for hazardous areas

T Ability to verify compliance of an electrical installation in accordance with ASNZS encompassing

Visual inspection to determine whether the installation complies with requirements set out in Section to of ASNZS and relevant specific installation standards

Mandatory tests following guidance given in ASNZS

T Ability to perform effective safe isolation of any equipment encompassing

Preparation of a safe work method statement SWMS or Job Safety Analysis JSA for effective safe isolation

Safe methods for identifying source of supply to be isolated

Switchingoff lockout and tagging procedures

Safe methods for confirming effective and safe isolation

T Ability to apply ASNZS requirements to install and terminate thermoplastic insulated cables elastomer sheathed cables XLPE sheathed cables and high temperature cables armoured cables and neutral screened cables in a wide range of applications

T Ability to perform the circuit tests required for electrical cables in a range of installations and final subcircuit encompassing

Following safe testing procedures

Tests to show if the earth continuity and earthfault loop impedance are sufficiently low

Testing to show if insulation resistance is sufficiently high

Testing to show if the polarity and circuit connections are correct

T Ability to install final subcircuit wiring into switchboards and connect to switchboard equipment in accordance with ASNZS and electricity distributors requirements

T Ability to apply ASNZS and electricity distributors requirements for the installation and connect consumers mains encompassing

Installing of underground and overhead consumers mains

Terminating consumers mains at pillars pits mains connection boxes and consumers switchboard

Install unprotected consumers mains to reduce the risk of shortcircuit current to a minimum

Installing bonding conductors where required

T Ability to read sketch and interpret electrical diagrams encompassing

Purpose and characteristics of schematic block and wiring diagrams plans and schedules

Conventions used in documenting electrical information

Read and interpret schematic block and wiring diagrams plans and schedules

Sketch electrical diagrams using conventional symbols

T Knowledge and understanding occupational safety and health encompassing

Basics of Occupational Safety and Health regulations

Legal responsibilities for employers and employees

Employers and employees own duty of care

Safety committees and their role

T Knowledge and understanding of the requirements for personal safety in the workplace encompassing

Purpose and use of Safe Work Method Statements SWMS or Job Safety Analysis JSA

Purpose and process of reporting OHS incidents

Safety procedures for working with electrical circuits and equipment

Procedures for safe and effective isolation of electrical supply

Regulations for the supervision of apprentices and trainees

T Process in rescuing a person in contact with live electrical conductors or equipment and the primary importance of the safety of the rescuer

T Application of emergency first aid requirements for an electric shock victim encompassing

Calling for help

Applying cardiopulmonary resuscitation CPR

Selection and use of fire extinguishers to control electrical fire at accident site

T Dangers of high voltage equipment and distribution systems encompassing

Step and touch and induced voltages

Sources of induced voltage and stored energy

Creepage and clearance requirements

Application of safe working procedures in the vicinity of HV equipment

T Systematic method of commissioning and decommissioning electrical equipment and installations encompassing

Commissioning safety procedures

Circuit voltage testing

Phase rotation checks

Functional testing

Instrument and control parameter settings

Decommissioning safety procedures

Identification of circuits with their control and protection devices

Impact of isolation on other parts of an installation

Tagging testing and earthing

Safe removal of equipment

T Diagnosing and rectifying faults in electrical apparatus and associated circuits encompassing

Faults such as opencircuit shortcircuit incorrect connections insulation failure unsafe condition apparatuscomponent failure related mechanical failure

Apparatus such as control devices fixed appliancesaccessories lighting electrical machines motors and controls socket outlets transformers protection and metering devices

Circuits such as those supplying fixed appliances lighting socket outlets motors and controls circuits transformers electronic or computer based equipment

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

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 Industrys 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 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 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

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 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

Verify compliance and functionality of general electrical installations as described as described in and including

A

Selecting correct tools and testing equipment

B

Identifying visual noncompliance defects

C

Using effective methods for conducting mandatory and optional tests

D

Identifying noncompliance from test results

E

Identifying causes of noncompliance

F

Completing mandatory reporting

G

Dealing with unplanned events

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 by this unit

These should be part of the formal learningassessment 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 verifying compliance and functionality of general electrical installations

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 assessment 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

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

There are no concurrent assessment recommendations for this unit