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NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 1
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 11 pages
INTEGRATED SUMMATIVE ASSESSMENT TASK
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
SECTION 1 INTRODUCTION
1 Practical purpose and value of the ISAT to the workplace
The task requires integrated application of competency knowledge and skills including
cutting drilling planning Vero board layout fitting and soldering components to ultimately
construct an a-stable multivibrator The task should take place in a simulated or structured
environment The process requires compliance to safety regulations and appropriate
housekeeping
2 Scope of the ISAT
This ISAT cover topic 1 of Electronic Control and Digital Electronics Subject Outcomes 1
2 and 3 are covered in this task
Demonstrate safety procedures followed when soldering and desoldering on a PC
board and on vero board
Demonstrate the manual dexterity needed to remove and replace a variety of
components on a PC board
Show how to find any semi-conductors operational limits by using technical manuals
Interpret the data found in technical manuals
Show how to look up replacement parts in technical manuals
Describe the uses application and functioning of timing circuits
Describe the uses application and functioning of filter circuits
Demonstrate the ability to design construct and test timing filter and oscillator circuits
observing the appropriate safety precautions and using the appropriate test equipment
Demonstrate the ability to design a circuit with a computer-aided program and test run
the circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
Electrical Principles and Practice
Topics Subject outcome
1 1 Relation between electrical entities
2 1 Series parallel resistors
3 2 Applying testing instruments
4 1 Interpret circuit drawings and diagrams
5 1 Identifying different components
Workshop Practice
Topics Subject outcome
1 1amp2 Apply safety procedures
2 1 Know treatment to injuries
3 1amp2 Have knowledge with hand and power tools
4 1 Workshop procedures
5 1 Soldering of circuit
Electronic control and digital electronics
Topics Subject outcome
1 1 2 3 amp 4 Components and circuit drawings
2 2 Binary theory
3 ISAT overview
Sub-Task
Activity Time frame Time
Allocation
Mark Allocation
1 Safety selection and use of hand and power tools 05 Hour 12 2 Selection and use of electronic test equipment and
computer-aided program 25 Hours 40
3 Identification of components and materials 05 Hour 20
4 Soldering and layout of components 15 Hours 12
5 Workmanship of the completed task 05 Hour 8 6 Understanding of DC and AC circuit 05 Hour 8
TOTAL 6 Hours 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
4 Resource requirements
41
42
MATERIALS DESCRIPTION VALUE QUANTITY
COMPONENTS
AND
CONSUMABLES
Resistor (R1)
Resistor (R2)
Resistors (R3 amp R4)
Capacitor (C1)
OP AMP
Holder
LED (1amp2)
Holder
Switch (S1)
Battery 9V
Connector
Box
Vero Board
Wire PVC
Wire PVC
Mirror Tape
TOOLS
Multi meter
Soldering iron TIP plusmn
15mm
Long nose pliers
Side cutters
Fixed
Fixed
Fixed
Electrolytic
555
For 555
Any colour
LED
Mini Toggle SPST
For Battery
No ABS10BLACK
Communica
Stranded Red amp
Black
Solid any colour for
bridges
Volt amps etc
1K frac14 W
22K frac14 W or 1OK
680 Ω
100 micro F
555
Panel Mount
MS550
PM3
113 mm X 62 mm
x 26 mm
50x50 mm
05mmsup2 x 100mm
05mmsup2 x 100mm
50mm
Range Unit to
milli
1
1
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
Power tools (Drilling
Machine)
Drill Bits
Sucker Solder or
Solda wick
Stanley Knife
Computer with
printer
Computer program
Crocodile Clips
Component
catalogue
Helping Hands
1
1
1
1
1
1
1
1
1
5 Assessment
The following assessment tools are provided in Section 3 for the full conduct of the
assessment of the ISAT
Sub-tasks 1 - 6 Rubric
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
SECTION 2 INSTRUCTIONS TO LECTURERS
1
2
3
4
5
6
7
8
9
10
11
12
13
Study the ISAT task described in SECTION 1
INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to
each student and sufficiently in advance for preparation and fulfilment of the ISAT
task
This ISAT task is an individual task and no help from any person outside is
allowed
All the equipment of this ISAT must be given to the student
Carefully note the requirements of the Assessment Tools provided in SECTION 3
All arrangements for ordering of consumables preparation of workshops and
simulation areas staff deployment added facilities and requirements record
sheets answer sheets etc must be made in advance to ensure the successful
conduct of the ISAT
Student performance in the ISAT must conclude with a record of the studentrsquos
performance as provided in SECTION 4
Ensure that the student understands the assessment criteria
Ensure that the student understands the competence descriptors of the
assessment rubrics (attached)
The ISAT assesses the various skills attained in the three vocational subjects
Each lecturer is to ensure that during the year students have sufficient practice to
master the skills and knowledge required to complete the ISAT
A judgement of competent or higher will only be achieved if the studentrsquos project
is functional
The lecturer must assess the project in stages as indicated in Instructions to
students to ensure that valid and authentic assessment that measures the skills
knowledge attitude and values (SKAV) required by the task takes place
The ISAT forms part of the studentrsquos promotional mark and therefore must be
conducted under examination conditions in a simulated or structured environment
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Use of safety equipment
The correct use of safety equipment is demonstrated in all applications (4 marks)
The correct use of safety equipment is demonstrated in most applications (3 marks)
The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)
Little or no correct use of safety equipment is demonstrated (0-1 mark)
Housekeeping
Demonstrates excellent housekeeping during and after task (4 marks)
Demonstrates good housekeeping after completion of task (3 marks)
Demonstrates acceptable level of housekeeping after completion of task (2 marks)
Demonstrate poor housekeeping during and after task (0-1 mark)
Use of hand and power tools
Demonstrates the correct use of hand tools in all applications (4 marks)
Demonstrates the correct use of hand tools in most applications (3 marks)
Demonstrates the correct use of hand tools in some applications (2 marks)
Demonstrates the incorrect use of hand tools (0-1 mark)
SUB-TOTAL 12
SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program
Selection of test equipment
Selects all testing equipment as per task requirement correctly (5 marks)
Selects most of the essential testing equipment as per task requirement correctly (3 marks)
Selects some of the essential testing equipment requirement correctly (2 marks)
Select few or no essential testing equipment correctly (0-1 mark)
Use of test equipment
Demonstrates the correct use of all test equipments in all applications (5 marks)
Demonstrates the correct use of test equipment in most applications (3 marks)
Demonstrates the correct use of test equipment in some applications (2 marks)
Demonstrate the incorrect use of test equipment in all applications (0-1 mark)
Selection of scales in a range during testing
Demonstrate to select different scales during testing of all components (5 marks)
Demonstrate to select different scales during testing of most of the components (3 Marks)
Demonstrate to select different scales during testing of some of the components (2 Marks)
Demonstrate to select no scales during testing of the components (0-1 Marks)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Correct interpretation of meter readings
Demonstrate to interpret all the readings observed correct (5 Marks)
Demonstrate to interpret most the readings observed correct (3 Marks)
Demonstrate to interpret some the readings observed correct (2 Marks)
Demonstrate to interpret none of the readings observed correct (0-1 Marks)
Reproducing of circuit electronically
Demonstrate the ability to redraw the circuit completely electronically (5 marks)
Demonstrate the ability to redraw the circuit electronically (3 marks)
Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)
Demonstrate the ability to redraw no circuit electronically (0-1 marks)
Testing of the circuit electronically
Demonstrate the ability that the circuit operates in full (5 marks)
Demonstrate the ability that the circuit operates (3 marks)
Demonstrate the ability that some part of the circuit operates (2 marks)
Demonstrate the ability that the circuit does not operates (0-1 marks)
Use of computerised program
Demonstrate the ability to use the program correctly (5 marks)
Demonstrate the ability to use the program (3 marks)
Show some ability to use the program (2 marks)
Little or no correct use of the program (0-1 mark)
Testing of operation of circuit
Demonstrates that the circuit operates with first test (5 marks)
Demonstrates that the circuit operates (3 marks)
Demonstrates that the circuit does not operates (2 marks)
Demonstrates no ability to test for correctness of circuit (0-1 mark)
SUB-TOTAL 40
SUB-TASK 3 Identification of components and materials
Identification of components according to circuit diagram layout
Identifies all components correctly according to circuit diagram layout (4 marks)
Identifies most of the components correctly according to circuit diagram layout (3 marks)
Identifies some of the components correctly according to circuit diagram layout (2 marks)
Identifies few or no components correctly (0-1 mark)
Selection of size and type of solder
Selects the correct size and type of solder every time (4 marks)
Selects the correct size and type of solder most of the time (3 marks)
Selects the correct size and type of solder some of the time (2 marks)
Selects few or no correct size and type of solder (0-1 mark)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 9
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Can interpret values on components
Can read and understand the printed information on all components (4 marks)
Can read and understand the printed information on most of the components (3 marks)
Can read and understand the printed information on some of the components (2 marks)
Can read and understand the printed information on any components (0-1 marks)
Can produce values of components by colour coding
Can determine the value of all the components by their colour coding (4 marks)
Can determine the value of most of the components by their colour coding (3 marks)
Can determine the value of some of the components by their colour coding (2 marks)
Can determine no value of all the components by their colour coding (0-1 marks)
Can interpret information in component catalogue
Can look up and interpret all the components in a catalogue (4 marks)
Can look up and interpret most of the components in a catalogue (3 marks)
Can look up and interpret some of the components in a catalogue (2 marks)
Canrsquot look up and interpret any components in a catalogue (0-1 marks)
SUB-TOTAL 20
SUB-TASK 4 Soldering and Layout of components
Arrangement of components on Planning Sheet and Vero board
Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)
Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)
Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)
Demonstrates a poor arrangement of components (0-1 mark)
Checking of polarity of components
Checks the polarity of all components (4 marks)
Checks the polarity of most components (3 marks)
Checks the polarity of some components (2 marks)
Checks few or no polarity of any component (0-1 mark)
Soldering Demonstrates excellent ability to solder (4 marks)
Demonstrates an adequate ability to solder (3 marks)
Student demonstrates a reasonable ability to solder (2 marks)
Student demonstrates no ability to solder (0-1 mark)
SUB-TOTAL 12
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 10
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
SUB-TASK 5 Workmanship of the completed task
Functionality of the circuit
Circuit is operational on first attempt (4 marks)
Circuit is operational on second attempt after fault finding (3 marks)
Circuit is operational on third attempt after fault finding (2 marks)
Circuit is not operational after fourth attempt (0-1 mark)
Workmanship
Shows excellent workmanship in all specifications of task (4 marks)
Shows high level of competence on workmanship in all specifications of the task (3 marks)
Shows acceptable level of workmanship in some of the specifications of the task (2 marks)
Shows poor workmanship in most of the specifications of the task (0-1 mark)
SUB-TOTAL 8
SUB-TASK 6 Understanding of DC and AC circuits
Interpretation and analysis of circuit diagram
Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)
Demonstrates a good interpretation and analysis of circuit diagram (3 marks)
Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)
Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)
Testing and fault finding
Demonstrates excellent ability to test and find faults of the task (4 marks)
Demonstrates high level of ability to test and find faults of the task (3 marks)
Demonstrates some ability to test and find faults of the task (2 marks)
Demonstrates little or no ability to test and find faults of the task (0-1 mark)
SUB-TOTAL 8
TOTAL 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
SECTION 1 INTRODUCTION
1 Practical purpose and value of the ISAT to the workplace
The task requires integrated application of competency knowledge and skills including
cutting drilling planning Vero board layout fitting and soldering components to ultimately
construct an a-stable multivibrator The task should take place in a simulated or structured
environment The process requires compliance to safety regulations and appropriate
housekeeping
2 Scope of the ISAT
This ISAT cover topic 1 of Electronic Control and Digital Electronics Subject Outcomes 1
2 and 3 are covered in this task
Demonstrate safety procedures followed when soldering and desoldering on a PC
board and on vero board
Demonstrate the manual dexterity needed to remove and replace a variety of
components on a PC board
Show how to find any semi-conductors operational limits by using technical manuals
Interpret the data found in technical manuals
Show how to look up replacement parts in technical manuals
Describe the uses application and functioning of timing circuits
Describe the uses application and functioning of filter circuits
Demonstrate the ability to design construct and test timing filter and oscillator circuits
observing the appropriate safety precautions and using the appropriate test equipment
Demonstrate the ability to design a circuit with a computer-aided program and test run
the circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
Electrical Principles and Practice
Topics Subject outcome
1 1 Relation between electrical entities
2 1 Series parallel resistors
3 2 Applying testing instruments
4 1 Interpret circuit drawings and diagrams
5 1 Identifying different components
Workshop Practice
Topics Subject outcome
1 1amp2 Apply safety procedures
2 1 Know treatment to injuries
3 1amp2 Have knowledge with hand and power tools
4 1 Workshop procedures
5 1 Soldering of circuit
Electronic control and digital electronics
Topics Subject outcome
1 1 2 3 amp 4 Components and circuit drawings
2 2 Binary theory
3 ISAT overview
Sub-Task
Activity Time frame Time
Allocation
Mark Allocation
1 Safety selection and use of hand and power tools 05 Hour 12 2 Selection and use of electronic test equipment and
computer-aided program 25 Hours 40
3 Identification of components and materials 05 Hour 20
4 Soldering and layout of components 15 Hours 12
5 Workmanship of the completed task 05 Hour 8 6 Understanding of DC and AC circuit 05 Hour 8
TOTAL 6 Hours 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
4 Resource requirements
41
42
MATERIALS DESCRIPTION VALUE QUANTITY
COMPONENTS
AND
CONSUMABLES
Resistor (R1)
Resistor (R2)
Resistors (R3 amp R4)
Capacitor (C1)
OP AMP
Holder
LED (1amp2)
Holder
Switch (S1)
Battery 9V
Connector
Box
Vero Board
Wire PVC
Wire PVC
Mirror Tape
TOOLS
Multi meter
Soldering iron TIP plusmn
15mm
Long nose pliers
Side cutters
Fixed
Fixed
Fixed
Electrolytic
555
For 555
Any colour
LED
Mini Toggle SPST
For Battery
No ABS10BLACK
Communica
Stranded Red amp
Black
Solid any colour for
bridges
Volt amps etc
1K frac14 W
22K frac14 W or 1OK
680 Ω
100 micro F
555
Panel Mount
MS550
PM3
113 mm X 62 mm
x 26 mm
50x50 mm
05mmsup2 x 100mm
05mmsup2 x 100mm
50mm
Range Unit to
milli
1
1
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
Power tools (Drilling
Machine)
Drill Bits
Sucker Solder or
Solda wick
Stanley Knife
Computer with
printer
Computer program
Crocodile Clips
Component
catalogue
Helping Hands
1
1
1
1
1
1
1
1
1
5 Assessment
The following assessment tools are provided in Section 3 for the full conduct of the
assessment of the ISAT
Sub-tasks 1 - 6 Rubric
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
SECTION 2 INSTRUCTIONS TO LECTURERS
1
2
3
4
5
6
7
8
9
10
11
12
13
Study the ISAT task described in SECTION 1
INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to
each student and sufficiently in advance for preparation and fulfilment of the ISAT
task
This ISAT task is an individual task and no help from any person outside is
allowed
All the equipment of this ISAT must be given to the student
Carefully note the requirements of the Assessment Tools provided in SECTION 3
All arrangements for ordering of consumables preparation of workshops and
simulation areas staff deployment added facilities and requirements record
sheets answer sheets etc must be made in advance to ensure the successful
conduct of the ISAT
Student performance in the ISAT must conclude with a record of the studentrsquos
performance as provided in SECTION 4
Ensure that the student understands the assessment criteria
Ensure that the student understands the competence descriptors of the
assessment rubrics (attached)
The ISAT assesses the various skills attained in the three vocational subjects
Each lecturer is to ensure that during the year students have sufficient practice to
master the skills and knowledge required to complete the ISAT
A judgement of competent or higher will only be achieved if the studentrsquos project
is functional
The lecturer must assess the project in stages as indicated in Instructions to
students to ensure that valid and authentic assessment that measures the skills
knowledge attitude and values (SKAV) required by the task takes place
The ISAT forms part of the studentrsquos promotional mark and therefore must be
conducted under examination conditions in a simulated or structured environment
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Use of safety equipment
The correct use of safety equipment is demonstrated in all applications (4 marks)
The correct use of safety equipment is demonstrated in most applications (3 marks)
The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)
Little or no correct use of safety equipment is demonstrated (0-1 mark)
Housekeeping
Demonstrates excellent housekeeping during and after task (4 marks)
Demonstrates good housekeeping after completion of task (3 marks)
Demonstrates acceptable level of housekeeping after completion of task (2 marks)
Demonstrate poor housekeeping during and after task (0-1 mark)
Use of hand and power tools
Demonstrates the correct use of hand tools in all applications (4 marks)
Demonstrates the correct use of hand tools in most applications (3 marks)
Demonstrates the correct use of hand tools in some applications (2 marks)
Demonstrates the incorrect use of hand tools (0-1 mark)
SUB-TOTAL 12
SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program
Selection of test equipment
Selects all testing equipment as per task requirement correctly (5 marks)
Selects most of the essential testing equipment as per task requirement correctly (3 marks)
Selects some of the essential testing equipment requirement correctly (2 marks)
Select few or no essential testing equipment correctly (0-1 mark)
Use of test equipment
Demonstrates the correct use of all test equipments in all applications (5 marks)
Demonstrates the correct use of test equipment in most applications (3 marks)
Demonstrates the correct use of test equipment in some applications (2 marks)
Demonstrate the incorrect use of test equipment in all applications (0-1 mark)
Selection of scales in a range during testing
Demonstrate to select different scales during testing of all components (5 marks)
Demonstrate to select different scales during testing of most of the components (3 Marks)
Demonstrate to select different scales during testing of some of the components (2 Marks)
Demonstrate to select no scales during testing of the components (0-1 Marks)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Correct interpretation of meter readings
Demonstrate to interpret all the readings observed correct (5 Marks)
Demonstrate to interpret most the readings observed correct (3 Marks)
Demonstrate to interpret some the readings observed correct (2 Marks)
Demonstrate to interpret none of the readings observed correct (0-1 Marks)
Reproducing of circuit electronically
Demonstrate the ability to redraw the circuit completely electronically (5 marks)
Demonstrate the ability to redraw the circuit electronically (3 marks)
Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)
Demonstrate the ability to redraw no circuit electronically (0-1 marks)
Testing of the circuit electronically
Demonstrate the ability that the circuit operates in full (5 marks)
Demonstrate the ability that the circuit operates (3 marks)
Demonstrate the ability that some part of the circuit operates (2 marks)
Demonstrate the ability that the circuit does not operates (0-1 marks)
Use of computerised program
Demonstrate the ability to use the program correctly (5 marks)
Demonstrate the ability to use the program (3 marks)
Show some ability to use the program (2 marks)
Little or no correct use of the program (0-1 mark)
Testing of operation of circuit
Demonstrates that the circuit operates with first test (5 marks)
Demonstrates that the circuit operates (3 marks)
Demonstrates that the circuit does not operates (2 marks)
Demonstrates no ability to test for correctness of circuit (0-1 mark)
SUB-TOTAL 40
SUB-TASK 3 Identification of components and materials
Identification of components according to circuit diagram layout
Identifies all components correctly according to circuit diagram layout (4 marks)
Identifies most of the components correctly according to circuit diagram layout (3 marks)
Identifies some of the components correctly according to circuit diagram layout (2 marks)
Identifies few or no components correctly (0-1 mark)
Selection of size and type of solder
Selects the correct size and type of solder every time (4 marks)
Selects the correct size and type of solder most of the time (3 marks)
Selects the correct size and type of solder some of the time (2 marks)
Selects few or no correct size and type of solder (0-1 mark)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 9
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Can interpret values on components
Can read and understand the printed information on all components (4 marks)
Can read and understand the printed information on most of the components (3 marks)
Can read and understand the printed information on some of the components (2 marks)
Can read and understand the printed information on any components (0-1 marks)
Can produce values of components by colour coding
Can determine the value of all the components by their colour coding (4 marks)
Can determine the value of most of the components by their colour coding (3 marks)
Can determine the value of some of the components by their colour coding (2 marks)
Can determine no value of all the components by their colour coding (0-1 marks)
Can interpret information in component catalogue
Can look up and interpret all the components in a catalogue (4 marks)
Can look up and interpret most of the components in a catalogue (3 marks)
Can look up and interpret some of the components in a catalogue (2 marks)
Canrsquot look up and interpret any components in a catalogue (0-1 marks)
SUB-TOTAL 20
SUB-TASK 4 Soldering and Layout of components
Arrangement of components on Planning Sheet and Vero board
Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)
Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)
Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)
Demonstrates a poor arrangement of components (0-1 mark)
Checking of polarity of components
Checks the polarity of all components (4 marks)
Checks the polarity of most components (3 marks)
Checks the polarity of some components (2 marks)
Checks few or no polarity of any component (0-1 mark)
Soldering Demonstrates excellent ability to solder (4 marks)
Demonstrates an adequate ability to solder (3 marks)
Student demonstrates a reasonable ability to solder (2 marks)
Student demonstrates no ability to solder (0-1 mark)
SUB-TOTAL 12
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 10
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
SUB-TASK 5 Workmanship of the completed task
Functionality of the circuit
Circuit is operational on first attempt (4 marks)
Circuit is operational on second attempt after fault finding (3 marks)
Circuit is operational on third attempt after fault finding (2 marks)
Circuit is not operational after fourth attempt (0-1 mark)
Workmanship
Shows excellent workmanship in all specifications of task (4 marks)
Shows high level of competence on workmanship in all specifications of the task (3 marks)
Shows acceptable level of workmanship in some of the specifications of the task (2 marks)
Shows poor workmanship in most of the specifications of the task (0-1 mark)
SUB-TOTAL 8
SUB-TASK 6 Understanding of DC and AC circuits
Interpretation and analysis of circuit diagram
Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)
Demonstrates a good interpretation and analysis of circuit diagram (3 marks)
Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)
Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)
Testing and fault finding
Demonstrates excellent ability to test and find faults of the task (4 marks)
Demonstrates high level of ability to test and find faults of the task (3 marks)
Demonstrates some ability to test and find faults of the task (2 marks)
Demonstrates little or no ability to test and find faults of the task (0-1 mark)
SUB-TOTAL 8
TOTAL 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
Electrical Principles and Practice
Topics Subject outcome
1 1 Relation between electrical entities
2 1 Series parallel resistors
3 2 Applying testing instruments
4 1 Interpret circuit drawings and diagrams
5 1 Identifying different components
Workshop Practice
Topics Subject outcome
1 1amp2 Apply safety procedures
2 1 Know treatment to injuries
3 1amp2 Have knowledge with hand and power tools
4 1 Workshop procedures
5 1 Soldering of circuit
Electronic control and digital electronics
Topics Subject outcome
1 1 2 3 amp 4 Components and circuit drawings
2 2 Binary theory
3 ISAT overview
Sub-Task
Activity Time frame Time
Allocation
Mark Allocation
1 Safety selection and use of hand and power tools 05 Hour 12 2 Selection and use of electronic test equipment and
computer-aided program 25 Hours 40
3 Identification of components and materials 05 Hour 20
4 Soldering and layout of components 15 Hours 12
5 Workmanship of the completed task 05 Hour 8 6 Understanding of DC and AC circuit 05 Hour 8
TOTAL 6 Hours 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
4 Resource requirements
41
42
MATERIALS DESCRIPTION VALUE QUANTITY
COMPONENTS
AND
CONSUMABLES
Resistor (R1)
Resistor (R2)
Resistors (R3 amp R4)
Capacitor (C1)
OP AMP
Holder
LED (1amp2)
Holder
Switch (S1)
Battery 9V
Connector
Box
Vero Board
Wire PVC
Wire PVC
Mirror Tape
TOOLS
Multi meter
Soldering iron TIP plusmn
15mm
Long nose pliers
Side cutters
Fixed
Fixed
Fixed
Electrolytic
555
For 555
Any colour
LED
Mini Toggle SPST
For Battery
No ABS10BLACK
Communica
Stranded Red amp
Black
Solid any colour for
bridges
Volt amps etc
1K frac14 W
22K frac14 W or 1OK
680 Ω
100 micro F
555
Panel Mount
MS550
PM3
113 mm X 62 mm
x 26 mm
50x50 mm
05mmsup2 x 100mm
05mmsup2 x 100mm
50mm
Range Unit to
milli
1
1
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
Power tools (Drilling
Machine)
Drill Bits
Sucker Solder or
Solda wick
Stanley Knife
Computer with
printer
Computer program
Crocodile Clips
Component
catalogue
Helping Hands
1
1
1
1
1
1
1
1
1
5 Assessment
The following assessment tools are provided in Section 3 for the full conduct of the
assessment of the ISAT
Sub-tasks 1 - 6 Rubric
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
SECTION 2 INSTRUCTIONS TO LECTURERS
1
2
3
4
5
6
7
8
9
10
11
12
13
Study the ISAT task described in SECTION 1
INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to
each student and sufficiently in advance for preparation and fulfilment of the ISAT
task
This ISAT task is an individual task and no help from any person outside is
allowed
All the equipment of this ISAT must be given to the student
Carefully note the requirements of the Assessment Tools provided in SECTION 3
All arrangements for ordering of consumables preparation of workshops and
simulation areas staff deployment added facilities and requirements record
sheets answer sheets etc must be made in advance to ensure the successful
conduct of the ISAT
Student performance in the ISAT must conclude with a record of the studentrsquos
performance as provided in SECTION 4
Ensure that the student understands the assessment criteria
Ensure that the student understands the competence descriptors of the
assessment rubrics (attached)
The ISAT assesses the various skills attained in the three vocational subjects
Each lecturer is to ensure that during the year students have sufficient practice to
master the skills and knowledge required to complete the ISAT
A judgement of competent or higher will only be achieved if the studentrsquos project
is functional
The lecturer must assess the project in stages as indicated in Instructions to
students to ensure that valid and authentic assessment that measures the skills
knowledge attitude and values (SKAV) required by the task takes place
The ISAT forms part of the studentrsquos promotional mark and therefore must be
conducted under examination conditions in a simulated or structured environment
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Use of safety equipment
The correct use of safety equipment is demonstrated in all applications (4 marks)
The correct use of safety equipment is demonstrated in most applications (3 marks)
The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)
Little or no correct use of safety equipment is demonstrated (0-1 mark)
Housekeeping
Demonstrates excellent housekeeping during and after task (4 marks)
Demonstrates good housekeeping after completion of task (3 marks)
Demonstrates acceptable level of housekeeping after completion of task (2 marks)
Demonstrate poor housekeeping during and after task (0-1 mark)
Use of hand and power tools
Demonstrates the correct use of hand tools in all applications (4 marks)
Demonstrates the correct use of hand tools in most applications (3 marks)
Demonstrates the correct use of hand tools in some applications (2 marks)
Demonstrates the incorrect use of hand tools (0-1 mark)
SUB-TOTAL 12
SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program
Selection of test equipment
Selects all testing equipment as per task requirement correctly (5 marks)
Selects most of the essential testing equipment as per task requirement correctly (3 marks)
Selects some of the essential testing equipment requirement correctly (2 marks)
Select few or no essential testing equipment correctly (0-1 mark)
Use of test equipment
Demonstrates the correct use of all test equipments in all applications (5 marks)
Demonstrates the correct use of test equipment in most applications (3 marks)
Demonstrates the correct use of test equipment in some applications (2 marks)
Demonstrate the incorrect use of test equipment in all applications (0-1 mark)
Selection of scales in a range during testing
Demonstrate to select different scales during testing of all components (5 marks)
Demonstrate to select different scales during testing of most of the components (3 Marks)
Demonstrate to select different scales during testing of some of the components (2 Marks)
Demonstrate to select no scales during testing of the components (0-1 Marks)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Correct interpretation of meter readings
Demonstrate to interpret all the readings observed correct (5 Marks)
Demonstrate to interpret most the readings observed correct (3 Marks)
Demonstrate to interpret some the readings observed correct (2 Marks)
Demonstrate to interpret none of the readings observed correct (0-1 Marks)
Reproducing of circuit electronically
Demonstrate the ability to redraw the circuit completely electronically (5 marks)
Demonstrate the ability to redraw the circuit electronically (3 marks)
Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)
Demonstrate the ability to redraw no circuit electronically (0-1 marks)
Testing of the circuit electronically
Demonstrate the ability that the circuit operates in full (5 marks)
Demonstrate the ability that the circuit operates (3 marks)
Demonstrate the ability that some part of the circuit operates (2 marks)
Demonstrate the ability that the circuit does not operates (0-1 marks)
Use of computerised program
Demonstrate the ability to use the program correctly (5 marks)
Demonstrate the ability to use the program (3 marks)
Show some ability to use the program (2 marks)
Little or no correct use of the program (0-1 mark)
Testing of operation of circuit
Demonstrates that the circuit operates with first test (5 marks)
Demonstrates that the circuit operates (3 marks)
Demonstrates that the circuit does not operates (2 marks)
Demonstrates no ability to test for correctness of circuit (0-1 mark)
SUB-TOTAL 40
SUB-TASK 3 Identification of components and materials
Identification of components according to circuit diagram layout
Identifies all components correctly according to circuit diagram layout (4 marks)
Identifies most of the components correctly according to circuit diagram layout (3 marks)
Identifies some of the components correctly according to circuit diagram layout (2 marks)
Identifies few or no components correctly (0-1 mark)
Selection of size and type of solder
Selects the correct size and type of solder every time (4 marks)
Selects the correct size and type of solder most of the time (3 marks)
Selects the correct size and type of solder some of the time (2 marks)
Selects few or no correct size and type of solder (0-1 mark)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 9
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Can interpret values on components
Can read and understand the printed information on all components (4 marks)
Can read and understand the printed information on most of the components (3 marks)
Can read and understand the printed information on some of the components (2 marks)
Can read and understand the printed information on any components (0-1 marks)
Can produce values of components by colour coding
Can determine the value of all the components by their colour coding (4 marks)
Can determine the value of most of the components by their colour coding (3 marks)
Can determine the value of some of the components by their colour coding (2 marks)
Can determine no value of all the components by their colour coding (0-1 marks)
Can interpret information in component catalogue
Can look up and interpret all the components in a catalogue (4 marks)
Can look up and interpret most of the components in a catalogue (3 marks)
Can look up and interpret some of the components in a catalogue (2 marks)
Canrsquot look up and interpret any components in a catalogue (0-1 marks)
SUB-TOTAL 20
SUB-TASK 4 Soldering and Layout of components
Arrangement of components on Planning Sheet and Vero board
Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)
Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)
Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)
Demonstrates a poor arrangement of components (0-1 mark)
Checking of polarity of components
Checks the polarity of all components (4 marks)
Checks the polarity of most components (3 marks)
Checks the polarity of some components (2 marks)
Checks few or no polarity of any component (0-1 mark)
Soldering Demonstrates excellent ability to solder (4 marks)
Demonstrates an adequate ability to solder (3 marks)
Student demonstrates a reasonable ability to solder (2 marks)
Student demonstrates no ability to solder (0-1 mark)
SUB-TOTAL 12
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 10
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
SUB-TASK 5 Workmanship of the completed task
Functionality of the circuit
Circuit is operational on first attempt (4 marks)
Circuit is operational on second attempt after fault finding (3 marks)
Circuit is operational on third attempt after fault finding (2 marks)
Circuit is not operational after fourth attempt (0-1 mark)
Workmanship
Shows excellent workmanship in all specifications of task (4 marks)
Shows high level of competence on workmanship in all specifications of the task (3 marks)
Shows acceptable level of workmanship in some of the specifications of the task (2 marks)
Shows poor workmanship in most of the specifications of the task (0-1 mark)
SUB-TOTAL 8
SUB-TASK 6 Understanding of DC and AC circuits
Interpretation and analysis of circuit diagram
Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)
Demonstrates a good interpretation and analysis of circuit diagram (3 marks)
Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)
Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)
Testing and fault finding
Demonstrates excellent ability to test and find faults of the task (4 marks)
Demonstrates high level of ability to test and find faults of the task (3 marks)
Demonstrates some ability to test and find faults of the task (2 marks)
Demonstrates little or no ability to test and find faults of the task (0-1 mark)
SUB-TOTAL 8
TOTAL 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
4 Resource requirements
41
42
MATERIALS DESCRIPTION VALUE QUANTITY
COMPONENTS
AND
CONSUMABLES
Resistor (R1)
Resistor (R2)
Resistors (R3 amp R4)
Capacitor (C1)
OP AMP
Holder
LED (1amp2)
Holder
Switch (S1)
Battery 9V
Connector
Box
Vero Board
Wire PVC
Wire PVC
Mirror Tape
TOOLS
Multi meter
Soldering iron TIP plusmn
15mm
Long nose pliers
Side cutters
Fixed
Fixed
Fixed
Electrolytic
555
For 555
Any colour
LED
Mini Toggle SPST
For Battery
No ABS10BLACK
Communica
Stranded Red amp
Black
Solid any colour for
bridges
Volt amps etc
1K frac14 W
22K frac14 W or 1OK
680 Ω
100 micro F
555
Panel Mount
MS550
PM3
113 mm X 62 mm
x 26 mm
50x50 mm
05mmsup2 x 100mm
05mmsup2 x 100mm
50mm
Range Unit to
milli
1
1
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
Power tools (Drilling
Machine)
Drill Bits
Sucker Solder or
Solda wick
Stanley Knife
Computer with
printer
Computer program
Crocodile Clips
Component
catalogue
Helping Hands
1
1
1
1
1
1
1
1
1
5 Assessment
The following assessment tools are provided in Section 3 for the full conduct of the
assessment of the ISAT
Sub-tasks 1 - 6 Rubric
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
SECTION 2 INSTRUCTIONS TO LECTURERS
1
2
3
4
5
6
7
8
9
10
11
12
13
Study the ISAT task described in SECTION 1
INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to
each student and sufficiently in advance for preparation and fulfilment of the ISAT
task
This ISAT task is an individual task and no help from any person outside is
allowed
All the equipment of this ISAT must be given to the student
Carefully note the requirements of the Assessment Tools provided in SECTION 3
All arrangements for ordering of consumables preparation of workshops and
simulation areas staff deployment added facilities and requirements record
sheets answer sheets etc must be made in advance to ensure the successful
conduct of the ISAT
Student performance in the ISAT must conclude with a record of the studentrsquos
performance as provided in SECTION 4
Ensure that the student understands the assessment criteria
Ensure that the student understands the competence descriptors of the
assessment rubrics (attached)
The ISAT assesses the various skills attained in the three vocational subjects
Each lecturer is to ensure that during the year students have sufficient practice to
master the skills and knowledge required to complete the ISAT
A judgement of competent or higher will only be achieved if the studentrsquos project
is functional
The lecturer must assess the project in stages as indicated in Instructions to
students to ensure that valid and authentic assessment that measures the skills
knowledge attitude and values (SKAV) required by the task takes place
The ISAT forms part of the studentrsquos promotional mark and therefore must be
conducted under examination conditions in a simulated or structured environment
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Use of safety equipment
The correct use of safety equipment is demonstrated in all applications (4 marks)
The correct use of safety equipment is demonstrated in most applications (3 marks)
The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)
Little or no correct use of safety equipment is demonstrated (0-1 mark)
Housekeeping
Demonstrates excellent housekeeping during and after task (4 marks)
Demonstrates good housekeeping after completion of task (3 marks)
Demonstrates acceptable level of housekeeping after completion of task (2 marks)
Demonstrate poor housekeeping during and after task (0-1 mark)
Use of hand and power tools
Demonstrates the correct use of hand tools in all applications (4 marks)
Demonstrates the correct use of hand tools in most applications (3 marks)
Demonstrates the correct use of hand tools in some applications (2 marks)
Demonstrates the incorrect use of hand tools (0-1 mark)
SUB-TOTAL 12
SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program
Selection of test equipment
Selects all testing equipment as per task requirement correctly (5 marks)
Selects most of the essential testing equipment as per task requirement correctly (3 marks)
Selects some of the essential testing equipment requirement correctly (2 marks)
Select few or no essential testing equipment correctly (0-1 mark)
Use of test equipment
Demonstrates the correct use of all test equipments in all applications (5 marks)
Demonstrates the correct use of test equipment in most applications (3 marks)
Demonstrates the correct use of test equipment in some applications (2 marks)
Demonstrate the incorrect use of test equipment in all applications (0-1 mark)
Selection of scales in a range during testing
Demonstrate to select different scales during testing of all components (5 marks)
Demonstrate to select different scales during testing of most of the components (3 Marks)
Demonstrate to select different scales during testing of some of the components (2 Marks)
Demonstrate to select no scales during testing of the components (0-1 Marks)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Correct interpretation of meter readings
Demonstrate to interpret all the readings observed correct (5 Marks)
Demonstrate to interpret most the readings observed correct (3 Marks)
Demonstrate to interpret some the readings observed correct (2 Marks)
Demonstrate to interpret none of the readings observed correct (0-1 Marks)
Reproducing of circuit electronically
Demonstrate the ability to redraw the circuit completely electronically (5 marks)
Demonstrate the ability to redraw the circuit electronically (3 marks)
Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)
Demonstrate the ability to redraw no circuit electronically (0-1 marks)
Testing of the circuit electronically
Demonstrate the ability that the circuit operates in full (5 marks)
Demonstrate the ability that the circuit operates (3 marks)
Demonstrate the ability that some part of the circuit operates (2 marks)
Demonstrate the ability that the circuit does not operates (0-1 marks)
Use of computerised program
Demonstrate the ability to use the program correctly (5 marks)
Demonstrate the ability to use the program (3 marks)
Show some ability to use the program (2 marks)
Little or no correct use of the program (0-1 mark)
Testing of operation of circuit
Demonstrates that the circuit operates with first test (5 marks)
Demonstrates that the circuit operates (3 marks)
Demonstrates that the circuit does not operates (2 marks)
Demonstrates no ability to test for correctness of circuit (0-1 mark)
SUB-TOTAL 40
SUB-TASK 3 Identification of components and materials
Identification of components according to circuit diagram layout
Identifies all components correctly according to circuit diagram layout (4 marks)
Identifies most of the components correctly according to circuit diagram layout (3 marks)
Identifies some of the components correctly according to circuit diagram layout (2 marks)
Identifies few or no components correctly (0-1 mark)
Selection of size and type of solder
Selects the correct size and type of solder every time (4 marks)
Selects the correct size and type of solder most of the time (3 marks)
Selects the correct size and type of solder some of the time (2 marks)
Selects few or no correct size and type of solder (0-1 mark)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 9
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Can interpret values on components
Can read and understand the printed information on all components (4 marks)
Can read and understand the printed information on most of the components (3 marks)
Can read and understand the printed information on some of the components (2 marks)
Can read and understand the printed information on any components (0-1 marks)
Can produce values of components by colour coding
Can determine the value of all the components by their colour coding (4 marks)
Can determine the value of most of the components by their colour coding (3 marks)
Can determine the value of some of the components by their colour coding (2 marks)
Can determine no value of all the components by their colour coding (0-1 marks)
Can interpret information in component catalogue
Can look up and interpret all the components in a catalogue (4 marks)
Can look up and interpret most of the components in a catalogue (3 marks)
Can look up and interpret some of the components in a catalogue (2 marks)
Canrsquot look up and interpret any components in a catalogue (0-1 marks)
SUB-TOTAL 20
SUB-TASK 4 Soldering and Layout of components
Arrangement of components on Planning Sheet and Vero board
Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)
Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)
Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)
Demonstrates a poor arrangement of components (0-1 mark)
Checking of polarity of components
Checks the polarity of all components (4 marks)
Checks the polarity of most components (3 marks)
Checks the polarity of some components (2 marks)
Checks few or no polarity of any component (0-1 mark)
Soldering Demonstrates excellent ability to solder (4 marks)
Demonstrates an adequate ability to solder (3 marks)
Student demonstrates a reasonable ability to solder (2 marks)
Student demonstrates no ability to solder (0-1 mark)
SUB-TOTAL 12
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 10
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
SUB-TASK 5 Workmanship of the completed task
Functionality of the circuit
Circuit is operational on first attempt (4 marks)
Circuit is operational on second attempt after fault finding (3 marks)
Circuit is operational on third attempt after fault finding (2 marks)
Circuit is not operational after fourth attempt (0-1 mark)
Workmanship
Shows excellent workmanship in all specifications of task (4 marks)
Shows high level of competence on workmanship in all specifications of the task (3 marks)
Shows acceptable level of workmanship in some of the specifications of the task (2 marks)
Shows poor workmanship in most of the specifications of the task (0-1 mark)
SUB-TOTAL 8
SUB-TASK 6 Understanding of DC and AC circuits
Interpretation and analysis of circuit diagram
Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)
Demonstrates a good interpretation and analysis of circuit diagram (3 marks)
Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)
Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)
Testing and fault finding
Demonstrates excellent ability to test and find faults of the task (4 marks)
Demonstrates high level of ability to test and find faults of the task (3 marks)
Demonstrates some ability to test and find faults of the task (2 marks)
Demonstrates little or no ability to test and find faults of the task (0-1 mark)
SUB-TOTAL 8
TOTAL 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
Power tools (Drilling
Machine)
Drill Bits
Sucker Solder or
Solda wick
Stanley Knife
Computer with
printer
Computer program
Crocodile Clips
Component
catalogue
Helping Hands
1
1
1
1
1
1
1
1
1
5 Assessment
The following assessment tools are provided in Section 3 for the full conduct of the
assessment of the ISAT
Sub-tasks 1 - 6 Rubric
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
SECTION 2 INSTRUCTIONS TO LECTURERS
1
2
3
4
5
6
7
8
9
10
11
12
13
Study the ISAT task described in SECTION 1
INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to
each student and sufficiently in advance for preparation and fulfilment of the ISAT
task
This ISAT task is an individual task and no help from any person outside is
allowed
All the equipment of this ISAT must be given to the student
Carefully note the requirements of the Assessment Tools provided in SECTION 3
All arrangements for ordering of consumables preparation of workshops and
simulation areas staff deployment added facilities and requirements record
sheets answer sheets etc must be made in advance to ensure the successful
conduct of the ISAT
Student performance in the ISAT must conclude with a record of the studentrsquos
performance as provided in SECTION 4
Ensure that the student understands the assessment criteria
Ensure that the student understands the competence descriptors of the
assessment rubrics (attached)
The ISAT assesses the various skills attained in the three vocational subjects
Each lecturer is to ensure that during the year students have sufficient practice to
master the skills and knowledge required to complete the ISAT
A judgement of competent or higher will only be achieved if the studentrsquos project
is functional
The lecturer must assess the project in stages as indicated in Instructions to
students to ensure that valid and authentic assessment that measures the skills
knowledge attitude and values (SKAV) required by the task takes place
The ISAT forms part of the studentrsquos promotional mark and therefore must be
conducted under examination conditions in a simulated or structured environment
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Use of safety equipment
The correct use of safety equipment is demonstrated in all applications (4 marks)
The correct use of safety equipment is demonstrated in most applications (3 marks)
The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)
Little or no correct use of safety equipment is demonstrated (0-1 mark)
Housekeeping
Demonstrates excellent housekeeping during and after task (4 marks)
Demonstrates good housekeeping after completion of task (3 marks)
Demonstrates acceptable level of housekeeping after completion of task (2 marks)
Demonstrate poor housekeeping during and after task (0-1 mark)
Use of hand and power tools
Demonstrates the correct use of hand tools in all applications (4 marks)
Demonstrates the correct use of hand tools in most applications (3 marks)
Demonstrates the correct use of hand tools in some applications (2 marks)
Demonstrates the incorrect use of hand tools (0-1 mark)
SUB-TOTAL 12
SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program
Selection of test equipment
Selects all testing equipment as per task requirement correctly (5 marks)
Selects most of the essential testing equipment as per task requirement correctly (3 marks)
Selects some of the essential testing equipment requirement correctly (2 marks)
Select few or no essential testing equipment correctly (0-1 mark)
Use of test equipment
Demonstrates the correct use of all test equipments in all applications (5 marks)
Demonstrates the correct use of test equipment in most applications (3 marks)
Demonstrates the correct use of test equipment in some applications (2 marks)
Demonstrate the incorrect use of test equipment in all applications (0-1 mark)
Selection of scales in a range during testing
Demonstrate to select different scales during testing of all components (5 marks)
Demonstrate to select different scales during testing of most of the components (3 Marks)
Demonstrate to select different scales during testing of some of the components (2 Marks)
Demonstrate to select no scales during testing of the components (0-1 Marks)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Correct interpretation of meter readings
Demonstrate to interpret all the readings observed correct (5 Marks)
Demonstrate to interpret most the readings observed correct (3 Marks)
Demonstrate to interpret some the readings observed correct (2 Marks)
Demonstrate to interpret none of the readings observed correct (0-1 Marks)
Reproducing of circuit electronically
Demonstrate the ability to redraw the circuit completely electronically (5 marks)
Demonstrate the ability to redraw the circuit electronically (3 marks)
Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)
Demonstrate the ability to redraw no circuit electronically (0-1 marks)
Testing of the circuit electronically
Demonstrate the ability that the circuit operates in full (5 marks)
Demonstrate the ability that the circuit operates (3 marks)
Demonstrate the ability that some part of the circuit operates (2 marks)
Demonstrate the ability that the circuit does not operates (0-1 marks)
Use of computerised program
Demonstrate the ability to use the program correctly (5 marks)
Demonstrate the ability to use the program (3 marks)
Show some ability to use the program (2 marks)
Little or no correct use of the program (0-1 mark)
Testing of operation of circuit
Demonstrates that the circuit operates with first test (5 marks)
Demonstrates that the circuit operates (3 marks)
Demonstrates that the circuit does not operates (2 marks)
Demonstrates no ability to test for correctness of circuit (0-1 mark)
SUB-TOTAL 40
SUB-TASK 3 Identification of components and materials
Identification of components according to circuit diagram layout
Identifies all components correctly according to circuit diagram layout (4 marks)
Identifies most of the components correctly according to circuit diagram layout (3 marks)
Identifies some of the components correctly according to circuit diagram layout (2 marks)
Identifies few or no components correctly (0-1 mark)
Selection of size and type of solder
Selects the correct size and type of solder every time (4 marks)
Selects the correct size and type of solder most of the time (3 marks)
Selects the correct size and type of solder some of the time (2 marks)
Selects few or no correct size and type of solder (0-1 mark)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 9
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Can interpret values on components
Can read and understand the printed information on all components (4 marks)
Can read and understand the printed information on most of the components (3 marks)
Can read and understand the printed information on some of the components (2 marks)
Can read and understand the printed information on any components (0-1 marks)
Can produce values of components by colour coding
Can determine the value of all the components by their colour coding (4 marks)
Can determine the value of most of the components by their colour coding (3 marks)
Can determine the value of some of the components by their colour coding (2 marks)
Can determine no value of all the components by their colour coding (0-1 marks)
Can interpret information in component catalogue
Can look up and interpret all the components in a catalogue (4 marks)
Can look up and interpret most of the components in a catalogue (3 marks)
Can look up and interpret some of the components in a catalogue (2 marks)
Canrsquot look up and interpret any components in a catalogue (0-1 marks)
SUB-TOTAL 20
SUB-TASK 4 Soldering and Layout of components
Arrangement of components on Planning Sheet and Vero board
Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)
Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)
Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)
Demonstrates a poor arrangement of components (0-1 mark)
Checking of polarity of components
Checks the polarity of all components (4 marks)
Checks the polarity of most components (3 marks)
Checks the polarity of some components (2 marks)
Checks few or no polarity of any component (0-1 mark)
Soldering Demonstrates excellent ability to solder (4 marks)
Demonstrates an adequate ability to solder (3 marks)
Student demonstrates a reasonable ability to solder (2 marks)
Student demonstrates no ability to solder (0-1 mark)
SUB-TOTAL 12
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 10
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
SUB-TASK 5 Workmanship of the completed task
Functionality of the circuit
Circuit is operational on first attempt (4 marks)
Circuit is operational on second attempt after fault finding (3 marks)
Circuit is operational on third attempt after fault finding (2 marks)
Circuit is not operational after fourth attempt (0-1 mark)
Workmanship
Shows excellent workmanship in all specifications of task (4 marks)
Shows high level of competence on workmanship in all specifications of the task (3 marks)
Shows acceptable level of workmanship in some of the specifications of the task (2 marks)
Shows poor workmanship in most of the specifications of the task (0-1 mark)
SUB-TOTAL 8
SUB-TASK 6 Understanding of DC and AC circuits
Interpretation and analysis of circuit diagram
Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)
Demonstrates a good interpretation and analysis of circuit diagram (3 marks)
Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)
Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)
Testing and fault finding
Demonstrates excellent ability to test and find faults of the task (4 marks)
Demonstrates high level of ability to test and find faults of the task (3 marks)
Demonstrates some ability to test and find faults of the task (2 marks)
Demonstrates little or no ability to test and find faults of the task (0-1 mark)
SUB-TOTAL 8
TOTAL 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
SECTION 2 INSTRUCTIONS TO LECTURERS
1
2
3
4
5
6
7
8
9
10
11
12
13
Study the ISAT task described in SECTION 1
INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to
each student and sufficiently in advance for preparation and fulfilment of the ISAT
task
This ISAT task is an individual task and no help from any person outside is
allowed
All the equipment of this ISAT must be given to the student
Carefully note the requirements of the Assessment Tools provided in SECTION 3
All arrangements for ordering of consumables preparation of workshops and
simulation areas staff deployment added facilities and requirements record
sheets answer sheets etc must be made in advance to ensure the successful
conduct of the ISAT
Student performance in the ISAT must conclude with a record of the studentrsquos
performance as provided in SECTION 4
Ensure that the student understands the assessment criteria
Ensure that the student understands the competence descriptors of the
assessment rubrics (attached)
The ISAT assesses the various skills attained in the three vocational subjects
Each lecturer is to ensure that during the year students have sufficient practice to
master the skills and knowledge required to complete the ISAT
A judgement of competent or higher will only be achieved if the studentrsquos project
is functional
The lecturer must assess the project in stages as indicated in Instructions to
students to ensure that valid and authentic assessment that measures the skills
knowledge attitude and values (SKAV) required by the task takes place
The ISAT forms part of the studentrsquos promotional mark and therefore must be
conducted under examination conditions in a simulated or structured environment
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Use of safety equipment
The correct use of safety equipment is demonstrated in all applications (4 marks)
The correct use of safety equipment is demonstrated in most applications (3 marks)
The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)
Little or no correct use of safety equipment is demonstrated (0-1 mark)
Housekeeping
Demonstrates excellent housekeeping during and after task (4 marks)
Demonstrates good housekeeping after completion of task (3 marks)
Demonstrates acceptable level of housekeeping after completion of task (2 marks)
Demonstrate poor housekeeping during and after task (0-1 mark)
Use of hand and power tools
Demonstrates the correct use of hand tools in all applications (4 marks)
Demonstrates the correct use of hand tools in most applications (3 marks)
Demonstrates the correct use of hand tools in some applications (2 marks)
Demonstrates the incorrect use of hand tools (0-1 mark)
SUB-TOTAL 12
SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program
Selection of test equipment
Selects all testing equipment as per task requirement correctly (5 marks)
Selects most of the essential testing equipment as per task requirement correctly (3 marks)
Selects some of the essential testing equipment requirement correctly (2 marks)
Select few or no essential testing equipment correctly (0-1 mark)
Use of test equipment
Demonstrates the correct use of all test equipments in all applications (5 marks)
Demonstrates the correct use of test equipment in most applications (3 marks)
Demonstrates the correct use of test equipment in some applications (2 marks)
Demonstrate the incorrect use of test equipment in all applications (0-1 mark)
Selection of scales in a range during testing
Demonstrate to select different scales during testing of all components (5 marks)
Demonstrate to select different scales during testing of most of the components (3 Marks)
Demonstrate to select different scales during testing of some of the components (2 Marks)
Demonstrate to select no scales during testing of the components (0-1 Marks)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Correct interpretation of meter readings
Demonstrate to interpret all the readings observed correct (5 Marks)
Demonstrate to interpret most the readings observed correct (3 Marks)
Demonstrate to interpret some the readings observed correct (2 Marks)
Demonstrate to interpret none of the readings observed correct (0-1 Marks)
Reproducing of circuit electronically
Demonstrate the ability to redraw the circuit completely electronically (5 marks)
Demonstrate the ability to redraw the circuit electronically (3 marks)
Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)
Demonstrate the ability to redraw no circuit electronically (0-1 marks)
Testing of the circuit electronically
Demonstrate the ability that the circuit operates in full (5 marks)
Demonstrate the ability that the circuit operates (3 marks)
Demonstrate the ability that some part of the circuit operates (2 marks)
Demonstrate the ability that the circuit does not operates (0-1 marks)
Use of computerised program
Demonstrate the ability to use the program correctly (5 marks)
Demonstrate the ability to use the program (3 marks)
Show some ability to use the program (2 marks)
Little or no correct use of the program (0-1 mark)
Testing of operation of circuit
Demonstrates that the circuit operates with first test (5 marks)
Demonstrates that the circuit operates (3 marks)
Demonstrates that the circuit does not operates (2 marks)
Demonstrates no ability to test for correctness of circuit (0-1 mark)
SUB-TOTAL 40
SUB-TASK 3 Identification of components and materials
Identification of components according to circuit diagram layout
Identifies all components correctly according to circuit diagram layout (4 marks)
Identifies most of the components correctly according to circuit diagram layout (3 marks)
Identifies some of the components correctly according to circuit diagram layout (2 marks)
Identifies few or no components correctly (0-1 mark)
Selection of size and type of solder
Selects the correct size and type of solder every time (4 marks)
Selects the correct size and type of solder most of the time (3 marks)
Selects the correct size and type of solder some of the time (2 marks)
Selects few or no correct size and type of solder (0-1 mark)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 9
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Can interpret values on components
Can read and understand the printed information on all components (4 marks)
Can read and understand the printed information on most of the components (3 marks)
Can read and understand the printed information on some of the components (2 marks)
Can read and understand the printed information on any components (0-1 marks)
Can produce values of components by colour coding
Can determine the value of all the components by their colour coding (4 marks)
Can determine the value of most of the components by their colour coding (3 marks)
Can determine the value of some of the components by their colour coding (2 marks)
Can determine no value of all the components by their colour coding (0-1 marks)
Can interpret information in component catalogue
Can look up and interpret all the components in a catalogue (4 marks)
Can look up and interpret most of the components in a catalogue (3 marks)
Can look up and interpret some of the components in a catalogue (2 marks)
Canrsquot look up and interpret any components in a catalogue (0-1 marks)
SUB-TOTAL 20
SUB-TASK 4 Soldering and Layout of components
Arrangement of components on Planning Sheet and Vero board
Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)
Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)
Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)
Demonstrates a poor arrangement of components (0-1 mark)
Checking of polarity of components
Checks the polarity of all components (4 marks)
Checks the polarity of most components (3 marks)
Checks the polarity of some components (2 marks)
Checks few or no polarity of any component (0-1 mark)
Soldering Demonstrates excellent ability to solder (4 marks)
Demonstrates an adequate ability to solder (3 marks)
Student demonstrates a reasonable ability to solder (2 marks)
Student demonstrates no ability to solder (0-1 mark)
SUB-TOTAL 12
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 10
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
SUB-TASK 5 Workmanship of the completed task
Functionality of the circuit
Circuit is operational on first attempt (4 marks)
Circuit is operational on second attempt after fault finding (3 marks)
Circuit is operational on third attempt after fault finding (2 marks)
Circuit is not operational after fourth attempt (0-1 mark)
Workmanship
Shows excellent workmanship in all specifications of task (4 marks)
Shows high level of competence on workmanship in all specifications of the task (3 marks)
Shows acceptable level of workmanship in some of the specifications of the task (2 marks)
Shows poor workmanship in most of the specifications of the task (0-1 mark)
SUB-TOTAL 8
SUB-TASK 6 Understanding of DC and AC circuits
Interpretation and analysis of circuit diagram
Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)
Demonstrates a good interpretation and analysis of circuit diagram (3 marks)
Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)
Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)
Testing and fault finding
Demonstrates excellent ability to test and find faults of the task (4 marks)
Demonstrates high level of ability to test and find faults of the task (3 marks)
Demonstrates some ability to test and find faults of the task (2 marks)
Demonstrates little or no ability to test and find faults of the task (0-1 mark)
SUB-TOTAL 8
TOTAL 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Use of safety equipment
The correct use of safety equipment is demonstrated in all applications (4 marks)
The correct use of safety equipment is demonstrated in most applications (3 marks)
The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)
Little or no correct use of safety equipment is demonstrated (0-1 mark)
Housekeeping
Demonstrates excellent housekeeping during and after task (4 marks)
Demonstrates good housekeeping after completion of task (3 marks)
Demonstrates acceptable level of housekeeping after completion of task (2 marks)
Demonstrate poor housekeeping during and after task (0-1 mark)
Use of hand and power tools
Demonstrates the correct use of hand tools in all applications (4 marks)
Demonstrates the correct use of hand tools in most applications (3 marks)
Demonstrates the correct use of hand tools in some applications (2 marks)
Demonstrates the incorrect use of hand tools (0-1 mark)
SUB-TOTAL 12
SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program
Selection of test equipment
Selects all testing equipment as per task requirement correctly (5 marks)
Selects most of the essential testing equipment as per task requirement correctly (3 marks)
Selects some of the essential testing equipment requirement correctly (2 marks)
Select few or no essential testing equipment correctly (0-1 mark)
Use of test equipment
Demonstrates the correct use of all test equipments in all applications (5 marks)
Demonstrates the correct use of test equipment in most applications (3 marks)
Demonstrates the correct use of test equipment in some applications (2 marks)
Demonstrate the incorrect use of test equipment in all applications (0-1 mark)
Selection of scales in a range during testing
Demonstrate to select different scales during testing of all components (5 marks)
Demonstrate to select different scales during testing of most of the components (3 Marks)
Demonstrate to select different scales during testing of some of the components (2 Marks)
Demonstrate to select no scales during testing of the components (0-1 Marks)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Correct interpretation of meter readings
Demonstrate to interpret all the readings observed correct (5 Marks)
Demonstrate to interpret most the readings observed correct (3 Marks)
Demonstrate to interpret some the readings observed correct (2 Marks)
Demonstrate to interpret none of the readings observed correct (0-1 Marks)
Reproducing of circuit electronically
Demonstrate the ability to redraw the circuit completely electronically (5 marks)
Demonstrate the ability to redraw the circuit electronically (3 marks)
Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)
Demonstrate the ability to redraw no circuit electronically (0-1 marks)
Testing of the circuit electronically
Demonstrate the ability that the circuit operates in full (5 marks)
Demonstrate the ability that the circuit operates (3 marks)
Demonstrate the ability that some part of the circuit operates (2 marks)
Demonstrate the ability that the circuit does not operates (0-1 marks)
Use of computerised program
Demonstrate the ability to use the program correctly (5 marks)
Demonstrate the ability to use the program (3 marks)
Show some ability to use the program (2 marks)
Little or no correct use of the program (0-1 mark)
Testing of operation of circuit
Demonstrates that the circuit operates with first test (5 marks)
Demonstrates that the circuit operates (3 marks)
Demonstrates that the circuit does not operates (2 marks)
Demonstrates no ability to test for correctness of circuit (0-1 mark)
SUB-TOTAL 40
SUB-TASK 3 Identification of components and materials
Identification of components according to circuit diagram layout
Identifies all components correctly according to circuit diagram layout (4 marks)
Identifies most of the components correctly according to circuit diagram layout (3 marks)
Identifies some of the components correctly according to circuit diagram layout (2 marks)
Identifies few or no components correctly (0-1 mark)
Selection of size and type of solder
Selects the correct size and type of solder every time (4 marks)
Selects the correct size and type of solder most of the time (3 marks)
Selects the correct size and type of solder some of the time (2 marks)
Selects few or no correct size and type of solder (0-1 mark)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 9
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Can interpret values on components
Can read and understand the printed information on all components (4 marks)
Can read and understand the printed information on most of the components (3 marks)
Can read and understand the printed information on some of the components (2 marks)
Can read and understand the printed information on any components (0-1 marks)
Can produce values of components by colour coding
Can determine the value of all the components by their colour coding (4 marks)
Can determine the value of most of the components by their colour coding (3 marks)
Can determine the value of some of the components by their colour coding (2 marks)
Can determine no value of all the components by their colour coding (0-1 marks)
Can interpret information in component catalogue
Can look up and interpret all the components in a catalogue (4 marks)
Can look up and interpret most of the components in a catalogue (3 marks)
Can look up and interpret some of the components in a catalogue (2 marks)
Canrsquot look up and interpret any components in a catalogue (0-1 marks)
SUB-TOTAL 20
SUB-TASK 4 Soldering and Layout of components
Arrangement of components on Planning Sheet and Vero board
Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)
Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)
Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)
Demonstrates a poor arrangement of components (0-1 mark)
Checking of polarity of components
Checks the polarity of all components (4 marks)
Checks the polarity of most components (3 marks)
Checks the polarity of some components (2 marks)
Checks few or no polarity of any component (0-1 mark)
Soldering Demonstrates excellent ability to solder (4 marks)
Demonstrates an adequate ability to solder (3 marks)
Student demonstrates a reasonable ability to solder (2 marks)
Student demonstrates no ability to solder (0-1 mark)
SUB-TOTAL 12
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 10
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
SUB-TASK 5 Workmanship of the completed task
Functionality of the circuit
Circuit is operational on first attempt (4 marks)
Circuit is operational on second attempt after fault finding (3 marks)
Circuit is operational on third attempt after fault finding (2 marks)
Circuit is not operational after fourth attempt (0-1 mark)
Workmanship
Shows excellent workmanship in all specifications of task (4 marks)
Shows high level of competence on workmanship in all specifications of the task (3 marks)
Shows acceptable level of workmanship in some of the specifications of the task (2 marks)
Shows poor workmanship in most of the specifications of the task (0-1 mark)
SUB-TOTAL 8
SUB-TASK 6 Understanding of DC and AC circuits
Interpretation and analysis of circuit diagram
Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)
Demonstrates a good interpretation and analysis of circuit diagram (3 marks)
Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)
Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)
Testing and fault finding
Demonstrates excellent ability to test and find faults of the task (4 marks)
Demonstrates high level of ability to test and find faults of the task (3 marks)
Demonstrates some ability to test and find faults of the task (2 marks)
Demonstrates little or no ability to test and find faults of the task (0-1 mark)
SUB-TOTAL 8
TOTAL 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Correct interpretation of meter readings
Demonstrate to interpret all the readings observed correct (5 Marks)
Demonstrate to interpret most the readings observed correct (3 Marks)
Demonstrate to interpret some the readings observed correct (2 Marks)
Demonstrate to interpret none of the readings observed correct (0-1 Marks)
Reproducing of circuit electronically
Demonstrate the ability to redraw the circuit completely electronically (5 marks)
Demonstrate the ability to redraw the circuit electronically (3 marks)
Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)
Demonstrate the ability to redraw no circuit electronically (0-1 marks)
Testing of the circuit electronically
Demonstrate the ability that the circuit operates in full (5 marks)
Demonstrate the ability that the circuit operates (3 marks)
Demonstrate the ability that some part of the circuit operates (2 marks)
Demonstrate the ability that the circuit does not operates (0-1 marks)
Use of computerised program
Demonstrate the ability to use the program correctly (5 marks)
Demonstrate the ability to use the program (3 marks)
Show some ability to use the program (2 marks)
Little or no correct use of the program (0-1 mark)
Testing of operation of circuit
Demonstrates that the circuit operates with first test (5 marks)
Demonstrates that the circuit operates (3 marks)
Demonstrates that the circuit does not operates (2 marks)
Demonstrates no ability to test for correctness of circuit (0-1 mark)
SUB-TOTAL 40
SUB-TASK 3 Identification of components and materials
Identification of components according to circuit diagram layout
Identifies all components correctly according to circuit diagram layout (4 marks)
Identifies most of the components correctly according to circuit diagram layout (3 marks)
Identifies some of the components correctly according to circuit diagram layout (2 marks)
Identifies few or no components correctly (0-1 mark)
Selection of size and type of solder
Selects the correct size and type of solder every time (4 marks)
Selects the correct size and type of solder most of the time (3 marks)
Selects the correct size and type of solder some of the time (2 marks)
Selects few or no correct size and type of solder (0-1 mark)
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 9
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Can interpret values on components
Can read and understand the printed information on all components (4 marks)
Can read and understand the printed information on most of the components (3 marks)
Can read and understand the printed information on some of the components (2 marks)
Can read and understand the printed information on any components (0-1 marks)
Can produce values of components by colour coding
Can determine the value of all the components by their colour coding (4 marks)
Can determine the value of most of the components by their colour coding (3 marks)
Can determine the value of some of the components by their colour coding (2 marks)
Can determine no value of all the components by their colour coding (0-1 marks)
Can interpret information in component catalogue
Can look up and interpret all the components in a catalogue (4 marks)
Can look up and interpret most of the components in a catalogue (3 marks)
Can look up and interpret some of the components in a catalogue (2 marks)
Canrsquot look up and interpret any components in a catalogue (0-1 marks)
SUB-TOTAL 20
SUB-TASK 4 Soldering and Layout of components
Arrangement of components on Planning Sheet and Vero board
Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)
Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)
Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)
Demonstrates a poor arrangement of components (0-1 mark)
Checking of polarity of components
Checks the polarity of all components (4 marks)
Checks the polarity of most components (3 marks)
Checks the polarity of some components (2 marks)
Checks few or no polarity of any component (0-1 mark)
Soldering Demonstrates excellent ability to solder (4 marks)
Demonstrates an adequate ability to solder (3 marks)
Student demonstrates a reasonable ability to solder (2 marks)
Student demonstrates no ability to solder (0-1 mark)
SUB-TOTAL 12
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 10
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
SUB-TASK 5 Workmanship of the completed task
Functionality of the circuit
Circuit is operational on first attempt (4 marks)
Circuit is operational on second attempt after fault finding (3 marks)
Circuit is operational on third attempt after fault finding (2 marks)
Circuit is not operational after fourth attempt (0-1 mark)
Workmanship
Shows excellent workmanship in all specifications of task (4 marks)
Shows high level of competence on workmanship in all specifications of the task (3 marks)
Shows acceptable level of workmanship in some of the specifications of the task (2 marks)
Shows poor workmanship in most of the specifications of the task (0-1 mark)
SUB-TOTAL 8
SUB-TASK 6 Understanding of DC and AC circuits
Interpretation and analysis of circuit diagram
Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)
Demonstrates a good interpretation and analysis of circuit diagram (3 marks)
Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)
Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)
Testing and fault finding
Demonstrates excellent ability to test and find faults of the task (4 marks)
Demonstrates high level of ability to test and find faults of the task (3 marks)
Demonstrates some ability to test and find faults of the task (2 marks)
Demonstrates little or no ability to test and find faults of the task (0-1 mark)
SUB-TOTAL 8
TOTAL 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 9
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
Can interpret values on components
Can read and understand the printed information on all components (4 marks)
Can read and understand the printed information on most of the components (3 marks)
Can read and understand the printed information on some of the components (2 marks)
Can read and understand the printed information on any components (0-1 marks)
Can produce values of components by colour coding
Can determine the value of all the components by their colour coding (4 marks)
Can determine the value of most of the components by their colour coding (3 marks)
Can determine the value of some of the components by their colour coding (2 marks)
Can determine no value of all the components by their colour coding (0-1 marks)
Can interpret information in component catalogue
Can look up and interpret all the components in a catalogue (4 marks)
Can look up and interpret most of the components in a catalogue (3 marks)
Can look up and interpret some of the components in a catalogue (2 marks)
Canrsquot look up and interpret any components in a catalogue (0-1 marks)
SUB-TOTAL 20
SUB-TASK 4 Soldering and Layout of components
Arrangement of components on Planning Sheet and Vero board
Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)
Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)
Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)
Demonstrates a poor arrangement of components (0-1 mark)
Checking of polarity of components
Checks the polarity of all components (4 marks)
Checks the polarity of most components (3 marks)
Checks the polarity of some components (2 marks)
Checks few or no polarity of any component (0-1 mark)
Soldering Demonstrates excellent ability to solder (4 marks)
Demonstrates an adequate ability to solder (3 marks)
Student demonstrates a reasonable ability to solder (2 marks)
Student demonstrates no ability to solder (0-1 mark)
SUB-TOTAL 12
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 10
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
SUB-TASK 5 Workmanship of the completed task
Functionality of the circuit
Circuit is operational on first attempt (4 marks)
Circuit is operational on second attempt after fault finding (3 marks)
Circuit is operational on third attempt after fault finding (2 marks)
Circuit is not operational after fourth attempt (0-1 mark)
Workmanship
Shows excellent workmanship in all specifications of task (4 marks)
Shows high level of competence on workmanship in all specifications of the task (3 marks)
Shows acceptable level of workmanship in some of the specifications of the task (2 marks)
Shows poor workmanship in most of the specifications of the task (0-1 mark)
SUB-TOTAL 8
SUB-TASK 6 Understanding of DC and AC circuits
Interpretation and analysis of circuit diagram
Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)
Demonstrates a good interpretation and analysis of circuit diagram (3 marks)
Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)
Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)
Testing and fault finding
Demonstrates excellent ability to test and find faults of the task (4 marks)
Demonstrates high level of ability to test and find faults of the task (3 marks)
Demonstrates some ability to test and find faults of the task (2 marks)
Demonstrates little or no ability to test and find faults of the task (0-1 mark)
SUB-TOTAL 8
TOTAL 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 10
Evaluation Criteria
Level 4 Outstanding
Level 3 Highly
Competent
Level 2 Competent
Level 1 Not Yet
Competent
Mark
SUB-TASK 5 Workmanship of the completed task
Functionality of the circuit
Circuit is operational on first attempt (4 marks)
Circuit is operational on second attempt after fault finding (3 marks)
Circuit is operational on third attempt after fault finding (2 marks)
Circuit is not operational after fourth attempt (0-1 mark)
Workmanship
Shows excellent workmanship in all specifications of task (4 marks)
Shows high level of competence on workmanship in all specifications of the task (3 marks)
Shows acceptable level of workmanship in some of the specifications of the task (2 marks)
Shows poor workmanship in most of the specifications of the task (0-1 mark)
SUB-TOTAL 8
SUB-TASK 6 Understanding of DC and AC circuits
Interpretation and analysis of circuit diagram
Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)
Demonstrates a good interpretation and analysis of circuit diagram (3 marks)
Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)
Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)
Testing and fault finding
Demonstrates excellent ability to test and find faults of the task (4 marks)
Demonstrates high level of ability to test and find faults of the task (3 marks)
Demonstrates some ability to test and find faults of the task (2 marks)
Demonstrates little or no ability to test and find faults of the task (0-1 mark)
SUB-TOTAL 8
TOTAL 100
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 11
SECTION 4 RECORD OF PERFORMANCE
INTEGRATED SUMMATIVE ASSESSMENT TASK
College
Campus
Studentrsquos Surname and First Names
Studentrsquos ID Number
Lecturerrsquos Surname and Initials
Date of conclusion of assessment
ASSESSMENT GRID
TASKS MARK ALLOCATION
STUDENTrsquoS MARK
Sub-Task 1 Safety selection and use of hand and power tools
12
Sub-Task 2 Selection and use of electronic test equipment and computer-aided program
40
Sub-Task 3 Identification of components and materials
20
Sub-Task 4 Soldering and layout of components
12
Sub-Task 5 Workmanship of the completed task
8
Sub-Task 6 Understanding of DC and AC Circuit
8
TOTAL 100
ISAT MARK AS A PERCENTAGE
COMPETENCE LEVEL INDICATORS
5-Point Achievement Rating Scale
5 (80-100)
4 (70-79)
3 (50-69)
2 (40-49)
1 (0-39)
Competency Level Indicators
Rating Code Rating Marks
5 Outstanding 80 ndash 100
4 Highly Competent 70 ndash79
3 Competent 50 ndash 69
2 Not Yet Competent 40 ndash49
1 Not Achieved 0 ndash 39
Studentrsquos competence level
Studentrsquos signature
Lecturerrsquos signature
Date
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over
NATIONAL CERTIFICATE (VOCATIONAL)
NQF LEVEL 2
INTEGRATED SUMMATIVE ASSESSMENT TASK
PROGRAMME
ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION
2010 ndash 2012
This document consists of 8 pages
INSTRUCTIONS TO STUDENTS
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 2
INSTRUCTIONS TO STUDENTS
This practical application task tests the studentrsquos ability to apply the knowledge and skills
acquired in the Electrical Infrastructure and Construction level 2 The work required of the
student in this Integrated Summative Assessment Task (ISAT) is an important and
compulsory component of the studies
1 You are required to
11
12
13
14
15
16
Study the task carefully
Note the time allocations per task
Note the submission dates
Pay careful attention to the mark allocated per section and the total
Study the resources required
Note the elements of the Assessment Tool that will be used to evaluate your
performance in each sub-task This is to ensure that you prepare sufficiently for
the conduct of the ISAT
2 Description of the task
The student must construct a-stable multi vibrator as per specifications given The task
consists of six sub-tasks
21 Safety selection and use of hand and power tools
22 Selection and use of electronic test equipment and computer aided program
23 Identification of components and materials
24 Soldering and layout of components
25 Workmanship of the completed task
26 Understanding of DC and AC circuit
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 3
3 Instructions for the task
SUB-TASK 1
Safety selection and use of hand power tools
The planning stage will be assessed and be part of the ISAT marks
Select the tools that you will need to perform this task Test the power machines for safety
and check the extension cord if it is save to use While you are working keep your
surroundings clean and do not waste material unnecessarily Use safety equipments only
is it is necessary After you have completed your task clean-up and pack away all tools
and equipments that you have used
SUB-TASK 2
Selection and use of electronic test equipment and computer aided program
Use the component catalogue and identify the five legs to be used Place the OPAMP
correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits
between the two sides of the IC Make use of a computer aided program to draw the circuit
and test the circuit to determine whether it will operate Transfer this drawing to the
attached diagram sheet
SUB-TASK 3
Identification of components and material
Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the
legs of the components to suit the holes in the Vero board Make sure that the
components are installed in such a way that you can solder the legs of the components to
the board
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 4
SUB-TASK 4
Soldering and layout of components
Do not use too much solder when you solder the components to the board Put the tip of
the soldering iron to both the component and the Vero board to ensure enough heat on
both This will ensure that no hot connections occur Do not keep the soldering iron too
long at one place on the board it will over heat and the conductor will part from the board
After you have soldered cut the access of the legs of the components short and make
your project tidy
SUB-TASK 5
Workmanship of the completed task
Check for loose connection on the soldering of the components Cut of excess legs of the
components Insert the IC correctly in the IC holder Insert and connect the battery in the
holder Test the a-stable multi vibrator by switching on the toggle switch after you have
put in the battery The two LEDs will light up one after the other
SUB-TASK 6
Understanding of DC and AC Circuit
After switching the power on and the OPAMP operates take it to the assessor for
assessment If the OPAMP does not operate apply fault finding techniques and solve the
problem
Refer to the attached Data Sheet all the time
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 5
CIRCUIT DIAGRAM
FIGURE 1
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 6
PHYSICAL LAYOUT OF PROJECT
FIGURE 2
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 7
DATA SHEET
NA555 NE555 SA555 SE555 TLC555
Frequency(Max)(MHz) 05 05 21
VCC(Min)(V) 45 45 45 45 2
VCC(Max)(V) 16 16 16 18 15
PinPackage 8PDIP 8SOIC
8PDIP 8SO 8SOIC 8TSSOP
8PDIP 8SOIC
8PDIP 8SOIC
14TSSOP 8PDIP 8SO 8SOIC
Operating Temp Range(Celsius)
-40 to 105
0 to 70 -40 to 85 -55 to 125
-40 to 125-40 to 850 to 70
Samples Samples Samples Samples Samples
Inventory Inventory Inventory Inventory Inventory
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET
NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012
Copyright reserved Please turn over 8
VEROBOARD LAYOUT PLANNING SHEET