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

Demonstrate knowledge of busbar design 
SAQA US ID UNIT STANDARD TITLE
265015  Demonstrate knowledge of busbar design 
ORIGINATOR
SGB Manufacturing and Assembly Processes 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Manufacturing and Assembly 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 4  NQF Level 04  4 
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 people working in the switchgear assembly manufacturing industry. It is designed to set a standard of learning for competence attainment towards artisanship certification purposes.

People credited with this unit standard are able to:
  • Determine switchgear assembly busbar sizes.
  • Describe methods of mounting and spacing busbars.
  • Explain the effects of temperature and fault levels on busbars.
  • Describe parallel busbar effects. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    The following competencies are assumed:
  • Communication and Literacy at NQF Level 2.
  • Mathematics at NQF Level 3.

    In addition, learners are assumed to have basic hand tools and specialized tools skills.

    This assumption forms the basis for the allocation of credits for this unit standard. If a learner does not have such experience or qualifications, the learning time will be increased. The allocation of credits is also based on the assumption that the learner will be following a learning programme which integrates the required Unit Standards. 
    		•

    UNIT STANDARD RANGE 
  • All practical work must meet documented organisational procedures for personal, product, and work site safety requirements.
  • For the purpose of this unit standard, the term switchgear assembly refers to low and medium voltage switchgear and controlgear assemblies, of rated voltage up to and including 32 000 V.
  • The term assemble refers to the mechanical assembly of the switchgear assembly, including the mounting of all switchgear and controlgear components and cable ducts, and includes the installation and termination of cables and wires.

    > Legislation, codes of practice, and standards relevant to this Unit Standard may include (depending on the industry product specialization) but is not limited to the following:
    > SANS 60439-1: Low-voltage switchgear and controlgear assemblies, Part 1 Type-tested and partially type-tested assemblies.
    > SANS 10142: Code of Practice for the wiring of premises Part 1 Low voltage installations.
    > SANS 60529 Enclosures for Electrical Equipment classified by IP Code.
    > SABS 1473-1:1996 - Low-voltage switchgear and controlgear assemblies, Part 1 Type-tested and partially type-tested assemblies.
    > Occupational Health and Safety Act, Act 85 of 1993.
    > Minerals Act and Regulations Act, Act 50 of 1991.
    > Mine, Health and Safety Act, Act 29 of 1996.
    > The National Building Regulations and Building Standards Act 103 of 1998.
    > Compensation for Occupational Injuries and Diseases Act, Act 130 of 1994.
    > The term regulations refer to the legislation, codes of practice and standards listed above.
    > British Association of Copper Trust. 
    		•

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Determine switchgear assembly busbar sizes. 
    OUTCOME RANGE 
    Three different designs specified on switchgear assembly drawings provided by the assessor. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The busbar ratings are calculated from the drawings and specification provided. 

    ASSESSMENT CRITERION 2 
    The busbar sizes are calculated from the rating and according to specification and industry practice. 

    SPECIFIC OUTCOME 2 
    Describe methods of mounting and spacing busbars. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The description explains the suitability of different fixing methods for different applications and describes various materials that are available for busbar supports. 

    ASSESSMENT CRITERION 2 
    The description explains how the integrity of insulation of busbars is maintained during mounting. 

    ASSESSMENT CRITERION 3 
    The description explains the mechanical means of maintaining clearances between busbars. 

    ASSESSMENT CRITERION 4 
    The description specifies the means of determining the distance between fixings on busbars. 

    SPECIFIC OUTCOME 3 
    Explain the effects of temperature and fault levels on busbars. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The explanation describes the variation of busbar electrical properties with temperature. 

    ASSESSMENT CRITERION 2 
    The explanation describes heat sinking methods used in switchgear assemblies. 
    ASSESSMENT CRITERION RANGE 
    Methods busbar orientation and busbar sizing.
     

    ASSESSMENT CRITERION 3 
    The explanation describes how the amount of heat generation in a busbar is calculated. 

    ASSESSMENT CRITERION 4 
    The explanation describes the effect of fault level on busbars and busbar supports. 

    SPECIFIC OUTCOME 4 
    Describe parallel busbar effects. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The description explains the effect on electrical ratings of parallel busbars. 
    ASSESSMENT CRITERION RANGE 
    Parallel, horizontal and vertical.
     

    ASSESSMENT CRITERION 2 
    The description explains means of compensating for parallel busbar effects and the use of reference charts and South African National Standards (SANS). 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Assessment will be governed by the policies and guidelines of a relevant Education and Training Quality Assurance body (ETQA), which has jurisdiction over this field of learning. The policies and procedures of the relevant ETQA will also determine:
    > How the assessment is moderated.
    > How a learner can appeal against the outcome of the assessment.
  • Any institution or company which offers learning to achieve the purpose of this unit standard must be accredited as a provider through the relevant ETQA.
    The integrated assessment should be based on a summative assessment guide. The guide will specify how the assessor will assess different aspects of the performance and will include:
    > Evaluating evidence in a portfolio of evidence, particularly projects which integrate various aspects of the unit standard and which demonstrate the integration of knowledge, skills and values, and the development of the critical outcomes.
    > Observing and listening to the learner at work, both in primary activities as well as in other interactions, or in relevant simulations.
    > Asking questions and initiating short discussions to test understanding and to verify other evidence.
    > Looking at records and reports.
    > Formative assessment.
  • Assessment of competence for this unit standard is based on experience acquired by the learner in the workplace, within the particular machining context. The assessment process should cover the explicit tasks required for the unit standard as well as the understanding of the concepts and principles that underpin the process of manufacturing switchgear assemblies.
  • The assessment process should also establish how the learning process has advanced the Critical Cross-field Outcomes.
  • The learner may choose in which language he/she wants to be assessed. This should be established as part of a process of preparing the learner for assessment and familiarising the learner with the approach being taken.
  • Assessors should also evaluate evidence that the learner has been performing consistently over a period of time.
  • Assessment criteria of the type results achieved are critical to this unit standard and must be achieved.
  • The assessment for this unit standard can be done in conjunction with the assessment of other unit standards related to a qualification, and in conjunction with the assessment for the qualification as a whole. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    The following items reflect the type of knowledge that the assessor will evaluate.

    Names and functions of:
  • Main parts and functions of switchgear assembly.
  • Accessories.
  • Work-holding fixtures.
  • Electrical measuring equipment.
  • Personal protective equipment.
  • Common defects on parts and components.
  • Productivity measures.
  • Various kinds of graphs.

    Purpose of:
  • Switchgear Assembly Parts and components.
  • Quality procedures and processes.
  • Housekeeping.
  • Safety procedures.
  • Productivity.
  • Technical reports.
  • Related industry documentation (organizational and legislative).

    Descriptions, characteristics and properties of:
  • Busbars.
  • Cabling.
  • Components.
  • Materials used in the manufacturing process.

    Causes and effects, implications of:
  • Effects of variation on final product.
  • Implication of unsafe and non compliant behaviour.
  • Production implications of not following Procedures and standards.
  • Policies for reporting incidents and malfunctions.

    Sensory cues:
  • Sense deviations in noise, smell and appearance.
  • Feel for the limits of force applied to materials or components.
  • Distinguish colour with good eyesight.

    Regulations, legislation, agreements, policies and standards:
  • Applicable safety, health and environmental protection legislation and standards.
  • Applicable quality standards and specifications.
  • Workplace policies and rules.

    Theory; rules, principles and laws:
  • Measurements, logic, co-ordinate geometry, specifications and standards.
  • Fundamentals of Electricity.

    Relationships, systems:
  • Ergonomics.
  • Relationship of switchgear assembly (product) to client/customer requirements and specifications. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems:
  • Deviations of switchgear busbar design specified by the specification and drawing is identified and corrected. 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Organize and manage myself and my activities by:
  • Organizing oneself and one's activities responsibly and effectively displaying the ability to follow instructions when working by ones self or in a work team, ensuring safe execution of work activities. 
    		•

    UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information by:
  • Collect, evaluate, organise and critically evaluate information related to the design of busbar of switchgear assemblies by conforming to specifications and standards within the regulatory framework. 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively by:
  • Effectively using communication methods when giving instructions to fellow workers, following instructions, and recording and reporting information. 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically:
  • Use technology effectively and critically, showing responsibility towards the safety and the health of others and ensuring that all regulations and standards are considered. 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems:
  • The purpose of busbar design in switchgear assembly.
  • The switchgear assembly in relation to the electrical reticulation system.
  • The product specification, its end-use and the value to the customer. 
    		•

    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 
    N/A 

    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 
    Elective  72052   Further Education and Training Certificate: Electrical Engineering  Level 4  NQF Level 04  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. KP ACADEMY (PTY) LTD 
    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.