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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Understand water chemistry in a power plant environment 
SAQA US ID UNIT STANDARD TITLE
14055  Understand water chemistry in a power plant environment 
ORIGINATOR
SGB Power Plant Operations 
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 
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 
A person credited with this unit standard will be able to understand basic chemical elements and concepts, describe chemical components and properties, understand water treatment process and the influences of incorrect chemical properties of water on a power plant. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
  • Knowledge of steam generator (TUM004/3).
  • Knowledge of steam turbo-generators (TUM005/3). 

  • UNIT STANDARD RANGE 
    See range statements under the specific outcomes. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Understand basic chemical elements and concepts within a power plant. 
    OUTCOME RANGE 
    Silica, Sodium, Oxygen, Chloride, Sulphur, Sulphide, Iron, Copper, Carbon, Hydrogen, Nitrogen, Hydrochloric acid, Sulphuric acid, Sodium chloride. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Atom and molecule structures defined. 

    ASSESSMENT CRITERION 2 
    2. Periodic table elements comprehended. 

    ASSESSMENT CRITERION 3 
    3. Chemical symbols as used in a power plant identified. 

    ASSESSMENT CRITERION 4 
    4. Hazards of chemicals in power plant processes known and understood. 

    ASSESSMENT CRITERION 5 
    5. Colour coding standards of chemical products known and understood. 

    SPECIFIC OUTCOME 2 
    Describe chemical components and properties in a power plant environment. 
    OUTCOME RANGE 
    Turbidity, Mud & Raw water, pH, Silica, Hardness, Sodium, Oils, Oxygen, Chloride, Sulphate, Iron, Copper, Total Organic Carbon, Hydrogen, Conductivity. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Chemical components and properties defined. 

    ASSESSMENT CRITERION 2 
    2. Chemical components measuring units interpreted. 

    ASSESSMENT CRITERION 3 
    3. Influence of chemical components understood. 

    SPECIFIC OUTCOME 3 
    Understand water treatment processes. 
    OUTCOME RANGE 
    Raw water, demineralised water, potable water and condensate polishing plant. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Water treatment processes configuration described. 

    ASSESSMENT CRITERION 2 
    2. Purpose of water treatment processes understood. 

    ASSESSMENT CRITERION 3 
    3. Chemical specifications of water understood. 

    SPECIFIC OUTCOME 4 
    Understand the influences of impurities in water used on a power plant. 
    OUTCOME RANGE 
  • Corrosion, erosion and scaling.
  • Raw water, feed water, potable water, fire water, demineralised water, condensate water. 

  • ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. The result of impurities in water defined. 

    ASSESSMENT CRITERION 2 
    2. The impact of impurities in water explained. 

    ASSESSMENT CRITERION 3 
    3. The purifying prevention methods in water understood. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • According to SAQA requirements

    Moderation
  • Standard Generating Group Fossil Power Plant > Operations-Technical Group 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
  • Chemicals used in power plant processes.
  • Water treatment processes understanding. 

  • UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identifying & solving problems in which responses display that responsible decisions using critical and creative thinking have been made. 

    UNIT STANDARD CCFO WORKING 
    Working effectively with others as a member of a team, group, organization and community. 

    UNIT STANDARD CCFO ORGANISING 
    Organising and managing oneself and one`s activities responsibly and effectively. 

    UNIT STANDARD CCFO COLLECTING 
    Collecting, analysing, organizing and critically evaluating information. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicating effectively using visual, mathematical and/or language skills in the modes of oral and/or written persuasion. 

    UNIT STANDARD CCFO SCIENCE 
    Using science and technology effectively and critically, showing responsibility towards the environment and health of others. 

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrating an understanding of the world as a set of related systems by recognizing that problem-solving contexts do not exist in isolation. 

    UNIT STANDARD CCFO CONTRIBUTING 
    Contributing to the full personal development of each learner and the social and economic development of the society at large, by making it the underlying intention of any programme of learning to make an individual aware of the importance of:
    a. reflecting on and exploring a variety of strategies to learn more effectively;
    b. participating as responsible citizens in the life of local, national and global communities;
    c. being culturally and aesthetically sensitive across a range of social contexts;
    d. exploring education and career opportunities;
    e. developing entrepreneurial opportunities. 

    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 
    Occupational Role: Process Plant Controller
  • Knowledge to be assessed on application of chemistry use in Power Plants 

  • QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  23679   National Diploma: Fossil Power Plant Process Control  Level 5  Level TBA: Pre-2009 was L5  Passed the End Date -
    Status was "Reregistered" 
    2009-02-18  Was EWSETA until Last Date for Achievement 
    Elective  61570   National Diploma: Power Plant Process Control Operations  Level 5  NQF Level 05  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. ESKOM DRANKENSBURG PUMP STORAGE (PEAKING) 
    2. ESKOM INGULA PUMP STORAGE SCHEME (PEAKING) 
    3. ESKOM KRIEL POWER STATION OPERATIONS TRAINING 
    4. Kelvin Power (Pty) Ltd 



    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.