SAQA

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SOUTH AFRICAN QUALIFICATIONS AUTHORITY

REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE:

Weld workpieces with the shielded metal arc welding process in the down-hand position

SAQA US ID	UNIT STANDARD TITLE
12241	Weld workpieces with the shielded metal arc welding process in the down-hand position
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 2	NQF Level 02	20
REGISTRATION STATUS		REGISTRATION START DATE	REGISTRATION END DATE	SAQA DECISION NUMBER
Passed the End Date - Status was "Reregistered"		2005-07-19	2007-02-21	SAQA 0160/05
LAST DATE FOR ENROLMENT		LAST DATE FOR ACHIEVEMENT
2008-02-21		2011-02-21

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 is replaced by:

US ID	Unit Standard Title	Pre-2009 NQF Level	NQF Level	Credits	Replacement Status
243063	Weld carbon steel work-pieces using the shielded metal arc welding process in the down-hand position.	Level 2	NQF Level 02	15

PURPOSE OF THE UNIT STANDARD

This unit standard is for a learner within the fabrication and welding fields

A person credited with this unit standard is capable of:

Describe the shielded metal arc welding process

Select, set up and conduct pre operational checks of shielded metal arc welding equipment

Prepare work pieces prior to welding

Weld workpieces

Inspect welded work piece for defects in compliance with drawing specifications

Care and store welding consumables and equipment

This unit standard will contribute to the full development of any learner by providing recognition, further mobility and transportability within the field. The knowledge, skills and understanding demonstrated in this unit standard are essential for social and economic transformation and upliftment within the fabrication and welding environment.

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING

Abet level 4/NQF1 (Numeracy and literacy) or equivalent

SAQA Lo/06

SAQA Com/001

SAQA Com/003

SAQA Com/004

SAQA Unit Math 001

SAQA Unit math 002

SAQA Unit Math 007

SAQA Unit Math 013

Prepare work pieces for welding

Basic engineering practices unit standard

Safety Health and Environmental (OHS Act)

Worksite practices

UNIT STANDARD RANGE

Scope:

Components and parts that have to be assembled must not be heavier than 10 Kg.

Range of materials used is:

Low and medium carbon steel (up to 12mm thick)

Context:

All work undertaken must comply with Occupational Health and Safety Act

All work done must comply with worksite practices

All work done under consistent supervision

Level:

Level (for level 2)
A learning programme leading to the award of this unit standard should develop learners who demonstrate:
(a) Ability to carry out moderate tasks that are familiar
(b) Ability to offer a clear choice of routine responses
(c) Basic operational knowledge base as indicated in the embedded knowledge component and that are readily available
(d) An understanding of known solutions to familiar problems with little generation of new ideas
(e) Ability to work under direct supervision with some responsibility

Specific Outcomes and Assessment Criteria:

SPECIFIC OUTCOME 1

Describe the shielded metal arc welding process.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. The importance of correct assembly of the shielded metal arc welding equipment, and the consequences of incorrect assembly, is explained with reference to the vendor requirements.

ASSESSMENT CRITERION 2

2. Basic and major components of the shielded metal arc welding equipment are identified and the explanation of function and purpose is correct in terms of manufacturer's requirements and standards.

ASSESSMENT CRITERION 3

3. Parts and components correctly identified and the implications for incorrect identification explained.

ASSESSMENT CRITERION 4

4. Terms and definitions used are consistent with generally accepted welding terminology as recorded in international welding standards.

ASSESSMENT CRITERION RANGE

Parts include: Welding machine, earth clamp, and welding cable.

SPECIFIC OUTCOME 2

Select, set up and conduct pre operational checks of shielded metal arc welding equipment.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. Verification of identification and selection of shielded metal arc welding equipment as specified on welding procedure specification.

ASSESSMENT CRITERION 2

2. Identification and rectification of hazards relate to welding process in accordance with standard work site practices.

ASSESSMENT CRITERION 3

3. Pre operational checks are carried out in accordance with manufacturer's specifications.

ASSESSMENT CRITERION RANGE

Resources to include: manufacturer's operational manual, worksite practices and safety and environmental issues

SPECIFIC OUTCOME 3

Prepare work pieces prior to welding.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. Work pieces prepared prior to welding as specified on drawing and worksite procedures.

ASSESSMENT CRITERION 2

2. Dimensions and alignment checked as specified on drawing.

ASSESSMENT CRITERION 3

3. Workpiece tack welded in position as per drawing specifications.

ASSESSMENT CRITERION 4

4. Safety precautions adhered to.

ASSESSMENT CRITERION 5

5. Inspect workpiece prior to welding.

ASSESSMENT CRITERION RANGE

Resources include - Worksite procedures, Tools, Equipment, Safety requirements, Materials.

SPECIFIC OUTCOME 4

Weld workpieces.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. Welding electrodes selected as specified on welding procedure specification.

ASSESSMENT CRITERION 2

2. Workpiece welded in position.

ASSESSMENT CRITERION 3

3. Safety precaution adhered to during welding process.

ASSESSMENT CRITERION 4

4. Workpiece cleaned after welding as per worksite practices.

ASSESSMENT CRITERION RANGE

Material type to be welded: Low carbon steel up to 12 mm thick

Resources include: Welding equipment, tools, protective clothing and equipment, welding procedure sheet and specification, materials

Weld joints: butt, fillet (including overlap and outside corner weld)

SPECIFIC OUTCOME 5

Inspect welded work piece for defects in compliance with drawing specifications.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. All residues flux and spatter removed as specified in cleaning procedure.

ASSESSMENT CRITERION 2

2. Welded workpiece conform to specifications as reflected on drawing.

ASSESSMENT CRITERION 3

3. Inspection methods and procedures selected are conducive to job requirements.

ASSESSMENT CRITERION 4

4. Documentation completed as reflected in worksite practices.

ASSESSMENT CRITERION RANGE

Procedures include: Worksite practices, inspection methods (ISO 5817 visual only), and cleaning procedures

SPECIFIC OUTCOME 6

Care and store welding consumables and equipment.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

1. Tools and equipment care for as per manufacturer's specifications and
stored as per worksite practices.

ASSESSMENT CRITERION 2

2. Tools and equipment stored to conform to worksite practices.

ASSESSMENT CRITERION 3

3. Welding consumables stored in accordance to worksite practices.

ASSESSMENT CRITERION RANGE

Tools and equipment stored to conform to worksite practices

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 in terms of the criteria laid down by the relevant ETQA.

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

Names & functions of:

Welding equipment

Personal protective equipment

Welded joints

Electrodes

Attributes, descriptions, characteristics & properties:

Metals and their properties

Types of consumables

Types of defects and hazards

Types of joints

Sensory cues

Smell indicating overheating equipment

Purpose of:

Manual metal arc welding in the downhand positions

Tack welding

Safety procedures and equipment

Quality checks

Processes, events, causes and effects, implications:

Implications of using incorrect consumables and equipment

Implications of ignoring potential hazards

Implications of insufficient and incorrect placing of tack welds

Implications of not checking for welding defects

Implications of not preparing workpiece before welding

Implications of using defective equipment

Procedures and techniques:

Set up procedures for shielded metal arc welding

Shielded metal arc procedures

Preparation for welding

Safety procedures

Quality procedures

Reporting procedures

Regulations, legislation, agreements, policies, standards:

Applicable safety, health and environmental protection legislation and standards

Theory: rules, principles, laws:

Principles of expansion and contraction

Basic principles of electricity

Electrode classification

Relationships, systems:

Relationship of the mechanical properties of welded joints with carbon content and cooling rate following welding

Relationship between amper settings and electrode thickness

Relationship between type of electrode and type of machine

Critical Cross-field Outcomes (CCFO):

UNIT STANDARD CCFO IDENTIFYING

Identify and solve problems:

Recognise hazards and defects and respond appropriately

UNIT STANDARD CCFO WORKING

Work effectively with others:

Participate in efforts of workgroup

UNIT STANDARD CCFO ORGANISING

Organise and manage myself and my activities:

Plan sequence of operations based on job instructions and set up equipment appropriately

UNIT STANDARD CCFO COLLECTING

Collect, analyse, organise and critically evaluate information:

Interpret information off job instructions and make decisions based on that information

Identify hazards and defects and take appropriate action

UNIT STANDARD CCFO COMMUNICATING

Communicate effectively:

Report outcome of work to appropriate personnel

UNIT STANDARD CCFO SCIENCE

Use science and technology effectively and critically:

Electrical and mechanical principles

Characteristics of materials

Principles of expansion and contraction

UNIT STANDARD CCFO DEMONSTRATING

Demonstrate an understanding of the world as a set of related systems:

Explain the role of shielded metal arc welding in the fabrication process

UNIT STANDARD ASSESSOR CRITERIA

Assessors should keep the following general principles in mind when designing and conducting assessments against this unit standard:

Focus the assessment activities on gathering evidence in terms of the main outcome expressed in the title to ensure assessment is integrated rather than fragmented. Remember we want to declare the person competent in terms of the title. Where assessment at title level is unmanageable, then focus assessment around each specific outcome, or groups of specific outcomes.

Make sure evidence is gathered across the entire range, wherever it applies. Assessment activities should be as close to the real performance as possible, and where simulations or role-plays are used, there should be supporting evidence to show the candidate is able to perform in the real situation.

Do not focus the assessment activities on each assessment criterion. Rather make sure the assessment activities focus on outcomes and are sufficient to enable evidence to be gathered around all the assessment criteria.

The assessment criteria provide the specifications against which assessment judgements should be made. In most cases, knowledge can be inferred from the quality of the performances, but in other cases, knowledge and understanding will have to be tested through questioning techniques. Where this is required, there will be assessment criteria to specify the standard required.

The task of the assessor is to gather sufficient evidence, of the prescribed type and quality, as specified in this unit standard, that the candidate can achieve the outcomes again and again and again. This means assessors will have to judge how many repeat performances are required before they believe the performance is reproducible.

All assessments should be conducted in line with the following well documented principles of assessment: appropriateness, fairness, manageability, integration into work or learning, validity, direct, authentic, sufficient, systematic, open and consistent.

UNIT STANDARD NOTES

This unit standard has been replaced by unit standard 243063, which is "Weld carbon steel work-pieces using the shielded metal arc welding process in the down-hand position", level 2, 15 credits.

This unit standard may be obtained through RPL. The learner should be thoroughly briefed on the mechanism to be used and support and guidance should be provided. Care should be taken that the mechanism used provides the learner with an opportunity to demonstrate competence and is not so onerous as to prevent learners from taking up the RPL option towards gaining a qualification.

QUALIFICATIONS UTILISING THIS UNIT STANDARD:

	ID	QUALIFICATION TITLE	PRE-2009 NQF LEVEL	NQF LEVEL	STATUS	END DATE	PRIMARY OR DELEGATED QA FUNCTIONARY
Core	22869	National Certificate: Engineering Fabrication	Level 2	NQF Level 02	Passed the End Date - Status was "Reregistered"	2007-08-16	MERSETA
Core	24214	National Certificate: Welding Application and Practice	Level 2	NQF Level 02	Passed the End Date - Status was "Registered"	2006-12-03	MERSETA
Elective	22870	National Certificate: Engineering Fabrication (light or heavy)	Level 3	NQF Level 03	Passed the End Date - Status was "Reregistered"	2007-08-16	MERSETA

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.

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