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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Design and Construct a Three Phase Circuit 
SAQA US ID UNIT STANDARD TITLE
10257  Design and Construct a Three Phase Circuit 
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 4  NQF Level 04  5 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "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 persons in the Electrical Engineering; Generation; Distribution; Transmission, Construction and Renewable Energy Sector.

A person credited with this unit standard will be able to:
  • Identify electrical symbols and components according to ISO standard
  • Gather relevant components and describe the functioning of circuits and components.
  • Design and construct three phase circuits
  • Evaluate the operational function of the constructed circuit and address any shortcomings

    This unit standard will contribute to the full development of the learner within the electrical engineering and construction environment by providing recognition, further mobility and transportability within the field of Physical Planning and Construction. The skills, knowledge and understanding demonstrated within this unit standard are essential for social and economic transformation and upliftment within the electrical engineering and construction environment. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    The following knowledge, skills attitude and / or equivalent:
  • Introduction to the industry
  • Safe working procedures
  • Good housekeeping.
  • Knowledge of the tools pertaining to the construction and wiring of three phase circuits. 
    		•

    UNIT STANDARD RANGE 
  • Symbols and components (ISO and IEC standard)
    a. Contactors.
    b. Protection (fuses, circuit breakers, earth leakage and over load relays).
    c. Controls (temperature, limits, pressure, level, proximity and time switches).
    d. Loads (resistive and inductive).
    e. Power supplies (Maximum 550 volt).
  • Circuits to be constructed in a simulated environment and tested under supervision. 
    		•

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Identify symbols and components. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Various types of switches are identified according to ISO their symbols. 

    ASSESSMENT CRITERION 2 
    2. Various types of protection devices are identified according to their ISO symbols. 

    ASSESSMENT CRITERION 3 
    3. Various types of control devices are identified according to their symbols. 

    ASSESSMENT CRITERION 4 
    4. Various types of load devices are identified according to their ISO symbols. 

    SPECIFIC OUTCOME 2 
    Design a three phase Circuit diagram. 
    OUTCOME RANGE 
    Circuits are limited to direct on line; forward and reverse; sequence and star- delta starting. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Instructions are interpreted according to work site procedures. 

    ASSESSMENT CRITERION 2 
    2. Symbols used conform to ISO standards. 

    ASSESSMENT CRITERION 3 
    3. The function of each component is understood and described correctly. 

    ASSESSMENT CRITERION 4 
    4. Circuit diagrams are designed neatly and symmetrically according to instructions. 

    ASSESSMENT CRITERION 5 
    5. Circuit diagrams are evaluated for functionality according to instructions. 

    SPECIFIC OUTCOME 3 
    Construct three phase circuits. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Relevant components are obtained according to the designed diagram. 

    ASSESSMENT CRITERION 2 
    2. Components are installed and correctly connected according to designed diagram and instructions. 

    ASSESSMENT CRITERION 3 
    3. Circuit is correctly connected to the power supply according to statutory requirements. 

    ASSESSMENT CRITERION 4 
    4.The circuit is evaluated to ensure correct operation and shortcomings addressed according to instructions. 

    ASSESSMENT CRITERION 5 
    5. The reason for using overload protection is correctly stated. 

    SPECIFIC OUTCOME 4 
    Complete the work task. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    1. Work are is cleaned in accordance with house keeping standards. 

    ASSESSMENT CRITERION 2 
    2. Ensure that tools are stored in there correct place in a accordance with work place practices and manufacturers specifications. 

    ASSESSMENT CRITERION 3 
    3. Waste materials are disposed of according to work site procedures and statutory requirements and environmental standards. 

    ASSESSMENT CRITERION 4 
    4. Documentation is completed in detail and submitted to meet work site standards and procedures. 
    ASSESSMENT CRITERION RANGE 
    Written data, records, electronic data, test or inspection reports
     


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner 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 by SAQA.
  • Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines in the relevant qualification and the agreed ETQA procedures. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
  • Safety precautions.
  • Knowledge about conductors and insulation material.
  • The effect of current. (Energy and power).
  • The definition of OHM`s law.
  • Knowledge about electromagnetism.
  • Recording and reporting of defects in equipment and tools.
  • Operation of a three phase motor.
  • Multiple alternating current circuits.
  • Regulations pertaining to the designing, construction and connecting of three phase circuits (SANS 10142-1). 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems during the application and maintaining of electrical safety. 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others while applying and maintaining electrical safety. 

    UNIT STANDARD CCFO ORGANISING 
    Organize and manage oneself during the construction of circuits. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate through reporting and present information reliably and accurately in writing and verbally. 

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology in environmental and personal safety. 

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems. 

    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 
    This Unit Standard was originally registered on 12 June 2002 under SAQA decision number 0742/02. It has been re-registered on 11 February 2004 under SAQA 2552/04.

    Specified requirements:

    Specified requirements include legal and legislative specific requirements and are contained in one or more of the following documents:
  • SABS 0142
  • OHS Act
  • Applicable statutory requirements

    A glossary of terms about the terminology of context specific:
  • User manuals supplied by manufacturers
  • Three phase electrical systems.
  • Specifications, agreements, policies and procedures

    Credits

    Total hours required b the learner to achieve the required outcomes: 50 hours.

    Activity Hours:
    Classroom learning 08
    On-the-job learning 20
    Self directed learning 08
    Coaching required 14
    Other

    Total 50

    Credits achieved: 5 
    		•

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  48474   National Certificate: Electrical Engineering  Level 4  Level TBA: Pre-2009 was L4  Passed the End Date -
    Status was "Reregistered"     		 2009-02-18  Was EWSETA until Last Date for Achievement 


    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.
     
    NONE 


    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.