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Electrical Installation II

Electrical Engineering · Level 5  ·  7 Chapters

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Chapters

1
Conduct site survey
40 topics
No Notes Yet
2
Prepare electrical drawings,
11 topics
No Notes Yet
3
Perform installation system sizing
53 topics
No Notes Yet
4
Install electrical system
37 topics
No Notes Yet
5
Perform electrical installation testing
29 topics
No Notes Yet
6
Perform electrical installation maintenance
16 topics
No Notes Yet
7
Commission electrical installation.
16 topics
No Notes Yet
What Electrical Installation II covers: 73 main topics in 7 chapters

1. Conduct site survey

  1. 1.1 Relevant clauses in appropriate Acts e.g.
  2. 1.2 Relevant regulations and standards:
  3. 1.3 Common hazards, their sources of danger and preventive measures e.g. burns, cuts, electric shock, electric fire, falling from heights, falling objects, noise, dust, chemicals etc
  4. 1.4 Safe and correct handling, use, maintenance and storage of different types of PPE
  5. 1.5 Utility services
  6. 1.6 Electrical parameters e.g. Voltage level, Earth resistance etc.
  7. 1.7 Installation route
  8. 1.8 Type of installations
  9. 1.9 Type of building e.g.
  10. 1.10 Utilities available
  11. 1.11 Installation conditions e.g. temperature, humidity, moisture
  12. 1.12 Taking measurements on site
  13. 1.13 Digital Survey report

2. Prepare electrical drawings,

  1. 2.1 Meaning of working drawings
  2. 2.2 Drawing standard electrical symbols
  3. 2.3 Drawing of electrical diagrams
  4. 2.4 Reading and Interpretation of architectural drawings
  5. 2.5 Reading and Interpretation of electrical drawings
  6. 2.6 Use of Computer Aided Design (CAD) applications e.g. AutoCAD
  7. 2.7 Relevant approval authorities
  8. 2.8 Types of wiring system e.g. Surface, Conduits, Trunking, etc.

3. Perform installation system sizing

  1. 3.1 Electrical parameters
  2. 3.2 Installation route
  3. 3.3 Type of installations
  4. 3.4 Type of building e.g.
  5. 3.5 Installation conditions e.g. temperature, humidity, moisture
  6. 3.6 Taking measurements on site
  7. 3.7 Determination of number of luminaries
  8. 3.8 Types of loads e.g. single phase load, three-phase load,etc.
  9. 3.9 Determining cable
  10. 3.10 Protective devices
  11. 3.11 Accessories
  12. 3.12 Phase balancing
  13. 3.13 Accurate load calculations i.e .avoid, over sizing or under sizing
  14. 3.14 Use energy-efficient loads and equipment
  15. 3.15 Preparation of working drawings
  16. 3.16 Preparation of BOQ
  17. 3.17 Contract documents e.g. contract letter, BOQ, working drawings, etc

4. Install electrical system

  1. 4.1 Safety procedures e.g.Use PPE
  2. 4.2 Handling tools, equipment and materials
  3. 4.3 Efficient cables management systems
  4. 4.4 Accessories used in Electrical installation e.g. Lamp holders, Conduits, Ceiling roses, Patress etc.
  5. 4.5 Installation procedures e.g Marking out, cutting, bending, threading, chiselling, trenching
  6. 4.6 Joints and terminations
  7. 4.7 Preparation of cable ways and wiring systems;
  8. 4.8 Cable lugging, glanding, labeling and dressing
  9. 4.9 Earthing and protection systems
  10. 4.10 Installation of final circuits
  11. 4.11 Operation of electrical system
  12. 4.12 Housekeeping

5. Perform electrical installation testing

  1. 5.1 Reading and interpretation of appropriate manuals.
  2. 5.2 Identification of test equipment;
  3. 5.3 Meaning of terms
  4. 5.4 Types of tests e.g.
  5. 5.5 Inspection
  6. 5.6 Testing tools e.g.
  7. 5.7 Procedure for conducting identified test;
  8. 5.8 Recording and verification of results against appropriate standards.
  9. 5.9 Digital and paperless documentation
  10. 5.10 Safety precautions to be observed

6. Perform electrical installation maintenance

  1. 6.1 Safety procedures
  2. 6.2 Meaning of terms.
  3. 6.3 Maintenance
  4. 6.4 Fault diagnosis/troubleshooting
  5. 6.5 System isolation points
  6. 6.6 System tests e.g. continuity test, functionality test, polarity test etc.
  7. 6.7 Maintenance report and records

7. Commission electrical installation.

  1. 7.1 Commissioning
  2. 7.2 End-user training
  3. 7.3 Operation manuals and brochures
  4. 7.4 Preparation of completion documents
  5. 7.5 Functionality test
  6. 7.6 Project handover

Revise this unit

Exam-style questions Written to CDACC standard, with answers Test yourself Multiple-choice, one at a time Practise questions Quick recall — check you know the facts
3 more for this unit
Oral exam preparation What the assessor asks, and how to answer out loud Worked calculations Step-by-step maths with the common mistakes Quick cards Myth busters, skill tips and scenarios

Beyond the syllabus

Decision simulator On site, what would you do? Workplace scenarios Real site situations — what would you do? Turn this into income Where this skill earns — what to charge, how to find clients

Other units in Module II