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

Install or replace mini substations and ring-main units/switches 
SAQA US ID UNIT STANDARD TITLE
258958  Install or replace mini substations and ring-main units/switches 
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  6 
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 replaces: 
US ID Unit Standard Title Pre-2009 NQF Level NQF Level Credits Replacement Status
113891  Install / replace mini substations and ring-main units / switches  Level 3  NQF Level 03  6   

PURPOSE OF THE UNIT STANDARD 
This unit standard is for persons in the electrical distribution environment.

The person credited with this unit standard is capable of planning, installing/replacing Medium Voltage mini substations and ring-main units/switches according to statutory requirements to distribute and control electricity to electrical installations.

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 construction- and distribution environment. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
  • Apply & maintain safety in an electrical environment.
  • Basic hand tools.
  • Portable power tools.
  • Introduction to industry.
  • Maintain safety at road works in urban areas.
  • Plan, install & terminate electrical cables & conductors.
  • Basic rigging skills.
  • Operating of mobile crane.
  • Read and relate to drawings, circuits and diagrams. 
    		•

    UNIT STANDARD RANGE 
    Mini substations include, but are not limited to:
  • Switchable or non-switchable mini substations.
  • 6.6kV/11kV/400V, 22kV/400V & 33kV/400V.
  • 200kVA -1000kVA for all mini substations.

    Ring-main units/switches include:
  • Fused & non-fused, stand-alone & extendable, indoor & outdoor units.
  • 6.6kV, 11kV, 22kV & 33kV.

    Medium Voltage cables/terminations are limited to:
  • Disconnecting & re-connecting cable glands/terminations. 
    		•

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Plan to install mini substation, ring-main unit or switch. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The unit's site location/point number, type and kVA/kA rating established according to geographical/system electrical diagrams and project plan specifications. 

    ASSESSMENT CRITERION 2 
    Job instructions are obtained and outage arranged according to pre-task plans and project requirements. 

    ASSESSMENT CRITERION 3 
    The unit obtained, pre-commissioning tests arranged and test certificates submitted according to pre-commissioning procedures and statutory requirements. 

    ASSESSMENT CRITERION 4 
    Tools, materials, transport/rigging and safety equipment required for installing the unit are selected and checked for functionality according to statutory requirements. 

    SPECIFIC OUTCOME 2 
    Prepare to install mini substation, ring-main unit or switch. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The unit is loaded and transported to the installation site as per safe work procedures. 

    ASSESSMENT CRITERION 2 
    Work site is inspected for hazardous conditions and corrective action is taken according to Occupational Health and Safety Act requirements. 

    ASSESSMENT CRITERION 3 
    Work area is demarcated/barricaded according to statutory requirements and roadwork safety procedures. 

    ASSESSMENT CRITERION 4 
    Plinth and trenches are prepared according to manufacturer's specifications/project requirements. 

    ASSESSMENT CRITERION 5 
    Earth mats/straps prepared and installed according to project requirements. 

    SPECIFIC OUTCOME 3 
    Remove the mini substation, ring-main unit or switch. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Ensure that the unit to be replaced is isolated, earthed and permits in place/worker's register signed as per Statutory requirements. 

    ASSESSMENT CRITERION 2 
    Earth straps, Medium-and Low Voltage cables are marked and disconnected as per work site requirements. 

    ASSESSMENT CRITERION 3 
    The unit is rigged and removed from the plinth according to safe work procedures. 

    ASSESSMENT CRITERION 4 
    Tools, rigging and personal protective equipment is used safely according to job specifications and statutory requirements. 

    ASSESSMENT CRITERION 5 
    The site is assessed for possible irregularities prior to the new installation as per safety risk assessment procedures. 

    SPECIFIC OUTCOME 4 
    Install mini substation, ring-main unit or switch. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The unit is positioned and secured according to statutory requirements and worksite procedures. 

    ASSESSMENT CRITERION 2 
    Earthing conductor/straps are terminated according to job specifications. 

    ASSESSMENT CRITERION 3 
    Low voltage cables are terminated and marked according to electrical cabling diagrams and job requirements. 

    ASSESSMENT CRITERION 4 
    The termination of Medium Voltage cables is arranged according to project requirements. 

    ASSESSMENT CRITERION 5 
    Tools, rigging and personal protective equipment are used safely according to job specifications and statutory requirements. 

    ASSESSMENT CRITERION 6 
    Ensure vermin proofing has been completed effectively where applicable as per environmental requirements. 

    SPECIFIC OUTCOME 5 
    Complete work task. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Work area is cleaned after completion of task according to housekeeping standards. 

    ASSESSMENT CRITERION 2 
    Ensure that the replaced unit has been returned to the stores/workshop according to asset management requirements. 

    ASSESSMENT CRITERION 3 
    Waste materials are disposed of according to environmental requirements. 

    ASSESSMENT CRITERION 4 
    Necessary documentation is completed and submitted to designated personnel. 


    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 
  • A basic understanding of stores procedures.
  • A basic understanding of the reticulation network layout.
  • A basic knowledge of mini substations, ring-main units/switches, its connecting/rigging points/lashing and transporting requirements.
  • Relevant safe working procedures. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO ORGANISING 
    Organise oneself and one's activities responsibly and communicate effectively during planning, preparing and performing the task. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, evaluate, organise and critically evaluate information related to installing and replacing mini substations, ring-main units/switches so that these are accurately interpreted into application performance standards. 

    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 replaces unit standard 113891, "Install / replace mini substations and ring-main units / switches", Level 3, 6 credits.

    Supplementary Information:

    Specified Requirements:

    Legal Requirements:
  • Relevant sections of the OHS Act.
  • Relevant environmental management processes/procedures. 
    		•

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  72051   National Certificate: Electrical Engineering  Level 3  NQF Level 03  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  As per Learning Programmes recorded against this Qual 


    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. CLEAN HEAT ENERGY SAVING SOLUTIONS (PTY) LTD 
    2. DR HE MAEPA INSTITUTE 
    3. MSC ARTISAN 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.