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: 

Design a LPG or natural gas installation. 
SAQA US ID UNIT STANDARD TITLE
246454  Design a LPG or natural gas installation. 
ORIGINATOR
Chemical Industries SGB 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Engineering and Related Design 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 3  NQF Level 03  15 
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 
Learners who demonstrate competence as described in the outcomes of this unit standard will be able to design a gas installation for industry, commercial or domestic use.

The qualifying learner is able to:
  • Define the scope of the gas installation design for a basic LPG or natural gas installation.
  • Use scientific methods to determine a variety of typical design parameters.
  • Select gas appliances for a basic LPG or natural gas installation.
  • Design the gas storage and delivery system for a basic LPG or natural gas installation.
  • Design the delivery piping configuration for a basic LPG or natural gas installation.
  • Verify the overall safety of a basic LPG or natural gas installation design.
  • Prepare design documents. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    Learners accessing this unit standard will have demonstrated competence against communication and mathematical literacy at NQF Level 2 or equivalent. 

    UNIT STANDARD RANGE 
  • The typical context of this unit standard assumes a new domestic or commercial gas installation site or an existing site requiring modifications. The typical scope of this unit standard is confined to a LPG or natural gas installation.
  • Range statements, which are applicable to the Unit Standard title, Specific Outcomes and Assessment Criteria are found beneath the applicable assessment criteria. 
    		•

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Define the scope of the gas installation design for a basic LPG or natural gas installation. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Limitations of own design authority are described as outlined by regulations and licence scope. 
    ASSESSMENT CRITERION RANGE 
    Limitations include but are not limited to number of cylinders, bulk pressure vessels, system pressure, medical applications, cryogenic equipment, automotive installations and on-site generation equipment.
     

    ASSESSMENT CRITERION 2 
    The purpose of a proposed installation is defined in terms of the appliances used, the gas type and the intended duty (load) of the system based on customer requirements. 

    ASSESSMENT CRITERION 3 
    A basic system layout sketch is prepared indicating positioning of delivery system, routing of piping and positioning of appliances/applications. 

    ASSESSMENT CRITERION 4 
    Special requirements are analysed in terms of overall design impact. 
    ASSESSMENT CRITERION RANGE 
  • Special requirements include routing, delivery system type, capacity and pressure, special features, components, appliances.
  • Analysis includes determining the viability and impact of special requirements on the overall design, conflicts with standards and regulations and whether the design falls within the scope of own licensing authority.
     
    		•

    SPECIFIC OUTCOME 2 
    Use scientific methods to determine a variety of typical design parameters. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Different systems of units used in gas installation design are converted to standard SI units using standard scientific principles. 

    ASSESSMENT CRITERION 2 
    Relevant gas data required for design calculations is obtained and converted to standard SI units using standard scientific principles. 

    ASSESSMENT CRITERION 3 
    Surface, area and volume calculations are performed using mathematical principles. 

    ASSESSMENT CRITERION 4 
    Flow and pressure drop calculations are performed using basic engineering methods. 

    ASSESSMENT CRITERION 5 
    Various design parameters and design sizes are obtained with the use of selection tables, graphs and graphical methods. 

    SPECIFIC OUTCOME 3 
    Select gas appliances for a basic LPG or natural gas installation. 
    OUTCOME RANGE 
    Appliances include but are not limited to gas geysers, stoves, ovens, furnaces, heaters, burners and lighting systems. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Appliances are selected based on suitability and compliance to requirements. 

    ASSESSMENT CRITERION 2 
    The volume requirements for all appliances are determined using applicable engineering techniques. 
    ASSESSMENT CRITERION RANGE 
    Techniques include calculations, data sheets, tables and other graphical methods.
     

    ASSESSMENT CRITERION 3 
    Different components associated with the appliances are selected and sized using accepted design practice. 
    ASSESSMENT CRITERION RANGE 
    Components include piping, valves, regulators, filters, flues, blowers, mixing system, control components, ignition system, silencers and ventilation system.
     

    ASSESSMENT CRITERION 4 
    A detailed layout sketch is prepared indicating positioning of appliances and routing of piping. 

    SPECIFIC OUTCOME 4 
    Design the gas storage and delivery system for a basic LPG or natural gas installation. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The storage and delivery concept is selected based on system requirements, suitability for the application and client specification. 
    ASSESSMENT CRITERION RANGE 
    A delivery system could include cylinders, dumpies, on-site generation, bulk tanks.
     

    ASSESSMENT CRITERION 2 
    The storage and delivery system is specified based on the overall appliance duty and by using applicable engineering techniques. 
    ASSESSMENT CRITERION RANGE 
  • System specification should include the delivery volume, pressure and minimum storage capacity required.
  • Techniques include calculations, data sheets, tables and other graphical methods.
     
    		•

    ASSESSMENT CRITERION 3 
    Different components associated with the storage and delivery system are selected and sized using accepted design practice. 
    ASSESSMENT CRITERION RANGE 
    Components should include but are not limited to piping, manifolds, valves, regulators, vessels, cylinders, vaporisers, metering.
     

    ASSESSMENT CRITERION 4 
    A detailed layout sketch is prepared indicating positioning of the storage and delivery components and routing of piping. 

    SPECIFIC OUTCOME 5 
    Design the delivery piping configuration for a basic LPG or natural gas installation. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The piping/reticulation system is specified based on the overall appliance duty and by using applicable engineering techniques. 
    ASSESSMENT CRITERION RANGE 
  • System specification should include the delivery volume and pressure required in every part of the system.
  • Engineering techniques include calculations, data sheets, tables and other graphical methods.
     
    		•

    ASSESSMENT CRITERION 2 
    Different components associated with the piping/reticulation system are selected and sized using accepted design practice. 
    ASSESSMENT CRITERION RANGE 
    Components should include but are not limited to piping, manifolds, valves, regulators, fittings, metering.
     

    ASSESSMENT CRITERION 3 
    A detailed layout sketch is prepared indicating routing of the piping/reticulation components. 

    SPECIFIC OUTCOME 6 
    Verify the overall safety of a basic LPG or natural gas installation design. 
    OUTCOME RANGE 
    Safety regulations and standards include but are not limited to relevant design standards and regulations, building standards and codes and municipal by-laws. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Materials are selected for all system components based on safety regulations and standards. 

    ASSESSMENT CRITERION 2 
    Ventilation is verified in terms of safety regulations and standards. 

    ASSESSMENT CRITERION 3 
    All safety distances are verified to comply with safety regulations and standards. 

    ASSESSMENT CRITERION 4 
    All layout/configuration aspects are verified to meet safety regulations and standards. 

    ASSESSMENT CRITERION 5 
    Own design authority and licence scope are verified in terms of the final design parameters. 

    SPECIFIC OUTCOME 7 
    Prepare design documents. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Final drawings are prepared and submitted as required by relevant local authority by-laws. 

    ASSESSMENT CRITERION 2 
    A bill of materials is drawn up based on the final design and specifications. 

    ASSESSMENT CRITERION 3 
    Material costs are obtained using the final design and specifications. 

    ASSESSMENT CRITERION 4 
    Overall costs are determined based on actual material-, consumable-, equipment- and labour prices. 

    ASSESSMENT CRITERION 5 
    An installation schedule is determined based on a realistic estimate of installation activities required. 

    ASSESSMENT CRITERION 6 
    A final quotation is prepared using all relevant design information. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • An assessor, accredited with a relevant NQF Level 3 or higher qualification, will assess the learner's competency.
  • Only an Assessor with considerable first hand experience in gas installations will assess the learner's competency.
  • Anyone assessing a learner or moderating the assessment of a learner against this Unit Standard must be registered as an Assessor with the relevant ETQA.
  • Direct observation in simulated or actual work conditions is required. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    The qualifying learner understands and is able to:
  • Define the scope of the gas installation design.
  • Use scientific methods to determine a variety of typical design parameters.
  • Demonstrate an understanding of appliance/application selection and design.
  • Demonstrate an understanding of the design of the delivery system.
  • Demonstrate an understanding of the applications of delivery piping.
  • Verify the overall safety of a gas installation design.
  • Prepare design documents. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    The learner is able to identify and solve problems in which responses display that responsible decisions, using critical and creative thinking, have been made by:
  • Applying scientific methods to determine the installation.
  • Designing the various parts of the installation.

    Refer to the following Specific Outcome/s:
  • Use scientific methods to determine a variety of typical design parameters.
  • Select gas appliances for a basic LPG or natural gas installation.
  • Design the gas storage and delivery system for a basic LPG or natural gas installation.
  • Design the delivery piping configuration for a basic LPG or natural gas installation.
  • Verify the overall safety of a basic LPG or natural gas installation design. 
    		•

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team, group, organisation or community by:
  • Liaising effectively with client to determine the client's requirements.
  • Obtaining prices for materials.

    Refer to the following Specific Outcome/s:
  • Define the scope of the gas installation design for a basic LPG or natural gas installation.
  • Prepare design documents. 
    		•

    UNIT STANDARD CCFO ORGANISING 
    The learner is able to organise and manage himself and his activities responsibly and effectively by:
  • Systematic preparation and completion of a gas system design.

    Refer to all Specific Outcomes. 
    		•

    UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information by:
  • Collecting client installation requirements.
  • Collecting and organising design information.
  • Evaluating and selecting equipment, components, materials.
  • Collecting costs and preparing quotation.

    Refer to all Specific Outcomes. 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively by using mathematical and/or language skills in the modes of oral and/or written presentations by:
  • Liaising effectively with client to determine the client's requirements.
  • Prepare sketches of the design.
  • Preparing design documents.

    Refer to the following Specific Outcome/s:
  • Define the scope of the gas installation design for a basic LPG or natural gas installation.
  • Select gas appliances for a basic LPG or natural gas installation.
  • Design the gas storage and delivery system for a basic LPG or natural gas installation.
  • Design the delivery piping configuration for a basic LPG or natural gas installation.
  • Prepare design documents. 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically, showing responsibility towards the environment and health of others by:
  • Design a total gas installation based on scientific principles.

    Refer to all Specific Outcomes. 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems by:
  • Recognising how client requirements influence a gas installation design.
  • Recognising how specifications and standards influence a gas installation design.
  • Recognising how ignoring safe design requirements can impact on a gas system user.

    Refer to all Specific Outcomes. 
    		•

    UNIT STANDARD CCFO CONTRIBUTING 
    Contribute to the full personal development of each learner and the social and economic development of the society at large by:
  • Understanding the role of designing a gas installation and the effect it has on the growth and development of the organisation, its customers and the community.

    Refer to all Specific Outcomes. 
    		•

    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
    Core  58950   National Certificate: Gas Installations  Level 3  NQF Level 03  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  CHIETA 


    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.