UEERL0001 - Attach cords and plugs to electrical equipment for connection to a single phase 230 Volt supply

Unit code: UEERL0001 | Study level: TAFE
Nominal hours:
20
Location
Sunshine
Prerequisites
UEECD0007 - Apply work health and safety regulations, codes and practices in the workplace
(Or equivalent to be determined by unit coordinator)
Overview
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Overview

This unit involves the skills and knowledge required to attach flexible cord and plug to electrical equipment for connection to a single phase supplies up to 230 volts (V) alternating current (a.c.) supply.
It includes planning and attaching flexible cord and plug, using test equipment for inspection and safety testing. It also includes locating, inspecting, testing and repairing faults in flexible cords and plugs.
This unit does not cover the knowledge and skills necessary for work associated with high current faults on complex electrical apparatus, circuits and electrical work; in hazardous areas or on electrical equipment that is part of an explosion-protection technique; nor, work associated with fixed wiring.The skills and knowledge described in this unit require a licence or permit to practice in the workplace where work is carried out on electrical installations which are designed to operate at voltages greater than 50 V a.c. or 120 V direct current (d.c.).

Assessment

For Melbourne campuses

Assessment tasks will be designed to reinforce & extend knowledge and skill competence within set & controlled parameters in accordance with each unit’s learning outcomes & performance criteria requirements, incl the setting of work based practical application tasks designed to provide evidence of competence outcomes, within periodic and scheduled timelines.
Students will be expected to demonstrate the following required skills:
* applying relevant industry standards
* applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including using risk control measures
* applying quality to workplace procedures and instructions
* attaching flexible cord/s and plug/s and without damage
* inspecting flexible cords and plugs for damage, faults or abnormalities
* dealing with unplanned events in accordance with problem-solving techniques and workplace procedures
* determining the current rating of a range of commonly used flexible cords
* drawing of a basic electrical circuit using correct symbols
* testing flexible cords, plugs and connected equipment for operation and safety up to 230 volts (V) alternating current (a.c.), including polarity and continuity testing
* finding and repairing faults in attached flexible cords and plugs in accordance with established procedures
* preparing to attach flexible cord and plug supplies up to 230 V a.c. supply
* providing status report/s
* using testing equipment
* selecting appropriate flexible cords for a range of single phase appliances relating to application, load and service duty
* identifying correct plug and socket polarities for the range of commonly used 230 V plug socket combinations
* selecting the correct plug and socket combinations for a range of applications, including use in damp areas
* fitting a range of various plugs and sockets with attention to requirements, colour code, polarity and correct termination of conductors with the sheath well into the body, and the cord grip anchored
* terminating cords to several appliances utilising the appropriate cord type and rating.

Students will also be expected to demonstrate the following knowledge:
* electrical safety requirements, including the requirements of AS/NZS 4836 Safe working on low-voltage electrical installations
* basic electrical circuits, including:
* simple electric circuit (supply, control device and load)
* industry standard symbols, units of measurement and the abbreviation for electromotive force, potential difference, current and resistance
* using multiples and sub-multiples for voltage, current and resistance values
* a.c and direct current (d.c.) supplies
* single phase electrical loads
* electrical circuit protection devices
* relationships in an electrical circuit, including:
* relationship between voltage, current and resistance (Ohm’s Law)
* changes in circuit parameters for altered values of voltage, current and resistance
* electrical power in relationship to d.c. or resistive a.c. circuits
* test equipment - resistance measurement, including:
* types of electrical test equipment used for resistance measurement (analogue and digital multimeters, insulation resistance testers and continuity testers)
* selection of appropriate electrical test instrument for continuity and insulation resistance measurement
* using analogue and digital multimeters for resistance measurement (ensuring zero setting, correct scale selection, avoidance of parallax error and estimation of between division readings for analogue multimeters)
* continuity tests and using a continuity tester to check the polarity of a three-core extension cord
* insulation resistance tests and minimum values for insulation resistance for low voltage (LV) equipment
* reasons for insulation resistance testing is conducted at higher than supply voltage to relevant industry standards
* using insulation resistance handheld tester
* care and storage of electrical instruments
* regulatory requirements relating to the maintenance and testing of test instrumentation for resistance measurement
* selection of flexible cords and plugs to suit given applications, including:
* types, structures and applications of common cores, including:
* parallel two core unsheathed (‘figure 8’)
* cords, light duty sheathed
* ordinary duty sheathed
* heavy duty sheathed
* textile braided
* service duty
* purpose of colour coding and the recommended single phase colour code
* conventional code used in the most common alternative colours
* factors affecting the choice of plugs and sockets, including ingress protection (IP) rating
* connecting flexible cords and plugs to appliances, including:
* design features of plugs and sockets which protect the conductor terminations from undue force when disconnecting a cord - tortuous path
* cord preparation - not to mark/damage the inner core when stripping the sheath for termination, double the end of the conductor to be terminated
* purpose of earthing
* structure of double insulated appliances, symbol, reasons they should not be earthed, and maintenance of the integrity of the double insulation
* preparation of the surfaces at an earthing connection before and after completion of the termination, including terminations exposed to corrosion, and those for which no specific earthing terminal is provided
* techniques for fitting plugs and sockets
* techniques for terminating cords and conductors including consequences of poor electrical terminations
* testing, including:
* importance of conducting both visual and electrical tests to ensure leads are safe and appropriate for connection to supply in regard to physical condition
* checking the polarity of plug, and for any abnormal or obvious damage or fault
* minimum acceptable value of insulation resistance between active neutral and earth
* conducting insulation resistance and continuity tests prior to, and after, connecting cords and plugs to appliances
* visually checking that the cord/plug assembly has a suitable IP rating for the operating environment
* visual checks to ensure that arrangements for protection against dangers of mechanical movement as relevant are undamaged and in place
* techniques for fault finding attached cords and plugs, and cord extension leads
* producing documentation and reports, including:
* nature and content of, and the need to produce, status reports and documents
* relevant WHS/OHS legislated requirements including inspection and testing of electrical equipment
* relevant industry standards
* relevant manufacturer specifications and operating instruction for tools, equipment and testing devices
* relevant safe job safety assessments or risk mitigation processes
* relevant workplace policies, procedures and instructions, including relevant workplace quality procedures.

Required reading

The qualified trainer and assessor will provide teaching and learning materials as required in the form of workbooks produced by Victoria University and/or via the Victoria University e-learning system.

As part of a course

This unit is studied as part of the following course(s):

Certificate IV in Industrial Automation and Control
UEE43220 | Certificate iv | Duration:

Refer to the course page for information on how to apply for the course. VU takes care to ensure the accuracy of this unit information, but reserves the right to change or withdraw courses offered at any time. Please check that unit information is current with the Student Contact Centre.

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