Modification History
Release 1 - New unit of competency
Unit Descriptor
This unit of competency covers the skills and knowledge required to produce electrical schematic drawings to comply with Australian Standard (AS) 1102.101–1989 Graphical symbols for electrotechnical documentation – General information and general index, or equivalent, using predetermined design specifications. The unit also covers the production of layout or block diagrams to show the physical arrangement of components.
Application of the Unit
This unit is suitable for those working within a drafting work environment. The unit applies to the production of schematic drawings to show electrical circuits and connections between devices, including power and signal connections. It includes the use of appropriate symbols and production of a matching reference list of circuit components. Types of electrical drawings or diagrams may include block, single line, interconnecting, wiring, circuit, telephonic and telegraphic or cable form diagrams, and notations.
Drawings may be carried out with or without the use of computer-aided design (CAD) systems and are completed to AS 1102.101–1989 Graphical symbols for electrotechnical documentation – General information and general index, or equivalent.
If CAD systems are to be used, the unit MEM30031A Operate computer-aided design (CAD) system to produce basic drawing elements, should also be selected.
Drawings are completed under supervision.
Licensing/Regulatory Information
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
Pre-Requisites
MEM09002B |
Interpret technical drawing |
MEM09204A |
Produce basic engineering detail drawings |
Employability Skills Information
This unit contains employability skills
Elements and Performance Criteria Pre-Content
Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
1 |
Determine schematic drawing requirements |
1.1 |
Check purpose, scope and information requirements for drawing |
1.2 |
Interpret available information relevant to project and work requirements, and identify and address further information needs |
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1.3 |
Identify and prepare equipment required to complete work |
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1.4 |
Identify and access organisational files, templates and symbols as required for work |
2 |
Identify system requirements |
2.1 |
Identify and apply relevant codes, standards and symbols used for electrical diagrams and drawings |
2.2 |
Identify function and purpose of circuit and its components and assemblies |
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2.3 |
Identify environmental implications of inefficient systems and strategies for minimising impact |
3 |
Prepare electrical drawings and diagrams |
3.1 |
Lay out drawing in accordance with the sketches and specifications |
3.2 |
Prepare an electrical block diagram in accordance with Australian Standards |
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3.3 |
Draw cable run and riser diagrams from schedules |
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3.4 |
Produce switchboard layout drawings |
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3.5 |
Prepare single line and interconnecting electrical diagrams in accordance with Australian Standards |
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3.6 |
Prepare wiring and circuit diagrams in accordance with Australian Standards |
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3.7 |
Ensure drawing accurately reflects specifications, is presented according to organisational requirements and contains all relevant information, including correct line work, scales, notation and dimensioning |
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3.8 |
Apply workplace occupational health and safety (OHS) and environmental procedures |
4 |
Prepare materials list |
4.1 |
Where required, select components and/or materials from supplier/manufacturer catalogues using predetermined specifications |
4.2 |
Produce a parts list in accordance with workplace procedures |
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4.3 |
Store drawings and/or materials list according to workplace procedures |
5 |
Consult appropriately with other disciplines |
5.1 |
Verify the parameters of the brief and clarify specifications with appropriate personnel |
5.2 |
Identify and consult with support services |
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5.3 |
Present and explain drawings at appropriate stages of the project |
Required Skills and Knowledge
Required skills |
Required skills include:
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Required knowledge |
Required knowledge includes:
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Evidence Guide
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package. |
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Overview of assessment |
A person who demonstrates competency in this unit must be able to interpret and apply drawing specifications in the production of electrical diagrams and drawings to Australian Standard AS1102.101–1989 Graphical symbols for electrotechnical documentation – General information and general index, or equivalent. |
Critical aspects for assessment and evidence required to demonstrate competency in this unit |
Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts. Specifically the candidate must be able to:
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Context of and specific resources for assessment |
This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability. Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities. This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with drafting or other units requiring the exercise of the skills and knowledge covered by this unit. |
Method of assessment |
Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways, including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials. |
Range Statement
Available information |
Available information may include:
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Components and assemblies |
Components and assemblies may include:
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Electrical layouts |
Electrical layouts may include:
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Cable runs |
Cable runs may include:
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Riser diagrams |
Riser diagrams may include:
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Switchboards |
Switchboards may include:
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Appropriate personnel |
Appropriate personnel may include:
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Support services |
Support services may include:
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Unit Sector(s)
Drawing, drafting and design
Custom Content Section
Not applicable.