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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Interpret functioning diagrams of domestic appliances 
SAQA US ID UNIT STANDARD TITLE
116735  Interpret functioning diagrams of domestic appliances 
ORIGINATOR
SGB Electrical Engineering & Construction 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 12 - Physical Planning and Construction Electrical Infrastructure Construction 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 3  NQF Level 03 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This unit standard is for people who are involved in the repair and maintenance of domestic appliances.

People credited with this unit standard are able to:
  • Demonstrate knowledge of electrical symbols and terminology;
  • Identify the purpose and features of diagrams used in appliance servicing; and
  • Use diagrams to explain the operation of an electrical appliance and identify faults in given situations. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    The credit calculation is based on the supposed to be in place assumption that learners are already competent in terms of the following outcomes or areas of learning when starting to learn towards this unit standard:
  • NQF 2 certificate which includes knowledge in:
    - Design and construct basic electrical diagrams
    - Identify basic electronic symbols
    - Understands the basics of motor operation
    - Draw components 

  • UNIT STANDARD RANGE 
    Candidates to use the following as aids for diagnostic purposes:
  • Cam charts
  • Programme charts
  • Wiring diagrams 

  • Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Demonstrate knowledge of electrical symbols, cam charts and terminology for domestic appliances. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Electrical drawing symbols are identified from diagrams and explained in terms of their function and relationship with other components. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to: connecting devices; motor windings, transformer windings; normally-open, normally-closed, change-over and delayed contacts; push-buttons; fuses, circuit-breakers, relays, contactors, overload elements, thermal relays; indicating instruments; mechanically, temperature, and time actuated switches, pressure switches.
     

    ASSESSMENT CRITERION 2 
    Electronic drawing symbols are identified from diagrams and explained in terms of their function and relationship with other components. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to: resistor, inductor, capacitor; relays, contactors, overload elements, thermal relays; indicating instruments; diodes; triodes; triac; integrated circuits; micro-processor.
     

    ASSESSMENT CRITERION 3 
    Control circuit terminology is defined according to industry norms. 
    ASSESSMENT CRITERION RANGE 
    Normal position, energised position, normally-open, normally-closed, change-over and delayed contacts, manual, automatic, semi-automatic.
     

    ASSESSMENT CRITERION 4 
    Cam charts are identified and explained in terms of their function and relationship with other diagrams and related components. 

    SPECIFIC OUTCOME 2 
    Identify the purpose and features of diagrams used in appliance servicing. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Purpose and key features of circuit diagrams (schematics) are identified according to manufacturers' specifications. 

    ASSESSMENT CRITERION 2 
    Purpose and key features of wiring diagrams are identified according to manufacturers' specifications. 

    ASSESSMENT CRITERION 3 
    Purpose and key features of block diagrams are identified in accordance with manufacturers' specifications. 

    ASSESSMENT CRITERION 4 
    Purpose and key features of cam charts are identified in accordance with manufacturers' specifications. 

    SPECIFIC OUTCOME 3 
    Use diagrams to explain the operation of an electrical appliance and identify faults in given situations. 
    OUTCOME RANGE 
  • Circuit schematic, wiring diagram, block diagram, cam charts;
  • Any appliance for which any of or combinations of the four types of diagrams are significant. 

  • ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Circuit operation is explained logically, with reference to the purpose of each component and the time sequence of events for full cycle of operation of the appliance. 

    ASSESSMENT CRITERION 2 
    Drawings are correctly selected to relate to the appliance or circuit under review. Additional charts or diagrams are selected and used to provide appropriate detail for the task at hand. 

    ASSESSMENT CRITERION 3 
    Positions and components on the drawing are correctly related to positions and components in the circuit or appliance, and vice versa. 

    ASSESSMENT CRITERION 4 
    Consequences of incorrect interpretation of drawings are described in terms of potential impact on subsequent fault finding, repairs, maintenance, safety and appliance operation. 

    SPECIFIC OUTCOME 4 
    Use diagrams and testing equipment to identify and locate faults. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Test instruments and desired settings are correctly identified according to applicable job requirements. 

    ASSESSMENT CRITERION 2 
    The correct sequence of interpreting diagrams to trace a fault is applied according to faultfinding procedures. 

    ASSESSMENT CRITERION 3 
    Faults are described in terms of deviations from normal operation and effect on the appliance. 

    ASSESSMENT CRITERION 4 
    The corrective procedure for the diagnosed fault is described according to manufacturers' specifications. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a candidate against this unit standard must be registered as an assessor with the relevant ETQA.
  • Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider through the relevant ETQA.
  • Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines and the agreed ETQA procedures. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    The following essential embedded knowledge will be assessed through assessment of the specific outcomes in terms of the stipulated assessment criteria. Candidates are unlikely to achieve all the specific outcomes, to the standards described in the assessment criteria, without knowledge of the listed embedded knowledge. This means that for the most part, the possession or lack of the knowledge can be directly inferred from the quality of the candidate's performance. Where direct assessment of knowledge is required, assessment criteria have been included in the body of the unit standard.
  • Common faults
  • Symbols and terminology related to diagrams
  • Circuits
  • Appliance operation 

  • UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems: diagnosing faults. 

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage oneself and one's activities responsibly and effectively: selecting and organising the appropriate diagram and test instruments. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information diagnosing faults. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematical and/or language skills: reading diagrams. 

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically: the symbols and diagrams relate to scientific and technological concepts. 

    UNIT STANDARD CCFO DEMONSTRATING 
    Understand the world as a set of inter-related parts of a system: relating the diagrams to actual components and domestic appliances. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    Credits

    Total hours required by the learner to achieve the required outcomes
  • Classroom learning: 10
  • On-the-job learning: 15
  • Self directed learning: 5
  • Coaching required: 10

    Total: 40

    Credit achieved: 4 

  • QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  49056   National Certificate: Domestic Appliance Repair  Level 3  NQF Level 03  Reregistered  2023-06-30  EWSETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    1. Ribach Academy 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.