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Evidence Guide: MEM18048B - Fault find and repair/rectify basic electrical circuits

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEM18048B - Fault find and repair/rectify basic electrical circuits

What evidence can you provide to prove your understanding of each of the following citeria?

Locate fault

  1. Circuit function and characteristics are determined and understood by reference to circuit diagrams, specifications, schematics and/or consultation with technical adviser.
  2. Where appropriate, built-in fault indicators and error codes are examined and correctly interpreted, and results are recorded to standard operational procedures.
  3. Where appropriate, circuit is correctly isolated from power supply.
  4. Faults are verified or localised using correct and appropriate techniques, procedures, tools and test equipment.
  5. Faults are recorded to standard operating procedures.
Circuit function and characteristics are determined and understood by reference to circuit diagrams, specifications, schematics and/or consultation with technical adviser.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Where appropriate, built-in fault indicators and error codes are examined and correctly interpreted, and results are recorded to standard operational procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Where appropriate, circuit is correctly isolated from power supply.

Completed
Date:

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Faults are verified or localised using correct and appropriate techniques, procedures, tools and test equipment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Faults are recorded to standard operating procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Repair/rectify fault(s)

  1. Using correct and appropriate techniques, procedures, tools and equipment, circuit/s is repaired, replaced or adjusted to specifications or manufacturers' requirements.
  2. Circuit/s is checked and tested using correct and appropriate techniques, procedures, tools and equipment for compliance with site or manufacturers' specifications.
  3. Where appropriate, repair/rectification report is recorded to standard operating procedures.
Using correct and appropriate techniques, procedures, tools and equipment, circuit/s is repaired, replaced or adjusted to specifications or manufacturers' requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Circuit/s is checked and tested using correct and appropriate techniques, procedures, tools and equipment for compliance with site or manufacturers' specifications.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Where appropriate, repair/rectification report is recorded to standard operating procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

A person who demonstrates competency in this unit must be able to fault find and repair/rectify basic electrical circuits. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

Context of and specific resources for assessment

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.

This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with fault finding and repair/rectify of basic electrical circuits, or other units requiring the exercise of the skills and knowledge covered by this unit.

Method of assessment

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Guidance information for assessment

Required Skills and Knowledge

Required skills

Look for evidence that confirms skills in:

using diagnostic skills to identify correct and faulty operation

interpreting and using circuit diagrams, specifications

locating reading/recording built-in fault indicators

obtaining error code interpretation documents

isolating electrical circuits from the power supply

tagging isolated circuits

verifying circuit isolation

confirming/localising circuit faults using appropriate test equipment, work techniques and tools

recording/reporting faults in electrical circuits

repairing/adjusting electric circuits

confirming circuit/s against specification

recording rectification of the circuit(s)

Required knowledge

Look for evidence that confirms knowledge of:

circuit characteristics

hazards associated with the electrical circuit(s)

relevant regulatory requirements

errors indicated by built-in devices

circuit isolation procedures

common electrical test instruments and their application

common techniques for testing electrical circuits

recording/reporting requirements for electrical circuit faults

appropriate techniques/procedures for returning the circuit/s to specification

site/manufacturers' circuit specifications

requirements for recording circuit rectifications

Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Circuit

A basic circuit is defined as a single circuit with a single output. A single circuit may be controlled by one or more devices and the output may control one or more devices

Appropriate techniques

Testing for voltage, current, frequency, polarity, phase, circuit continuity, insulation resistance, earth continuity etc.

Test equipment

Continuity testers, ammeters, voltmeters, multimeters, tong testers, wattmeters, cathode ray oscilloscopes, etc.