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Electrical Principles III

Electronics Engineering · Level 6  ·  4 Chapters

Compiled by: Winnie Cherono

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What Electrical Principles III covers

Earthing, lighting, networks and fields are the four areas of Electrical Principles III in Electronics Engineering Level 6. The first covers application of protection principles, protection system design, earthing system design and testing, and lightning strike types with lightning system design. The second covers laws of lighting, light requirement calculations, selecting luminaires and designing lighting schemes. Two port networks cover passive networks, characteristic impedance, ABCD constants, cascaded networks and transmission lines. The last outcome treats electromagnetic radiation sources and detectors, waves, Maxwell's equations and electrostatic terms.

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Careers after Electrical Principles III

Protection, earthing, lighting and signal networks are the design and testing tasks this unit prepares you for.

  • Electrical design offices in Nairobi - You design protection systems and earthing systems and test an earthing system. You earn a salary as a design technician.
  • Lightning protection contractors in Nakuru - You identify types of lightning strikes and design lightning protection.
  • Lighting installers and suppliers in Kitale - You select luminaires, calculate light requirements using the laws of lighting and design lighting schemes for rooms and buildings. You are paid on a project or salary basis.
  • Signal and transmission line firms in Mombasa - You analyse networks, determine characteristic impedance and apply cascaded networks and different types of transmission line.
  • Self-employed electrical consultants in Meru - You offer earthing tests and lighting design to small clients and earn per assignment. You quote from your own calculations.

Calculation sits behind each of these design tasks.

Chapters

1
Conduct System Earthing and Protection
21 topics
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2
Apply Illumination Principles
4 topics
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3
Use Two Port Networks
5 topics
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4
Apply Electromagnetic Field Theory
16 topics
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What Electrical Principles III covers: 28 main topics in 4 chapters

1. Conduct System Earthing and Protection

  1. 1.1 Application of System and Equipment Protection Principles
  2. 1.2 Perform Protection System Design
  3. 1.3 Design Earthing Systems
  4. 1.4 Perform Test on an Earthing System
  5. 1.5 Identification of Various Types of Lightning Strikes
  6. 1.6 Perform Lightning System Design

2. Apply Illumination Principles

  1. 2.1 Application of Laws of Lighting
  2. 2.2 Calculations on Light Requirements as Laws of Lighting
  3. 2.3 Selection of Electric Luminaires
  4. 2.4 Design of Lighting Schemes

3. Use Two Port Networks

  1. 3.1 Analysis of Basic Passive Networks Based on Black Box Technique
  2. 3.2 Determination of Characteristic Impedance
  3. 3.3 Derivation of ABCD Constants
  4. 3.4 Application of Cascaded Networks as per Network Parameters
  5. 3.5 Types of Transmission Lines and Their Applications

4. Apply Electromagnetic Field Theory

  1. 4.1 Identification of Electromagnetic Radiation Sources
  2. 4.2 Identification of Detectors of Electromagnetic Radiations
  3. 4.3 Application of Electromagnetic Waves
  4. 4.4 Identification of Electromagnetics Laws Based on Maxwells Equation
  5. 4.5 Calculations of Electromagnetic Wave Parameters
  6. 4.6 Electromagnetic Wave Parameters
  7. 4.7 Behaviours and Effects of Electromagnetic Waves
  8. 4.8 Identification of Electrostatics Terms
  9. 4.9 Identification of Magneto Statics Terms
  10. 4.10 Identification of Electrodynamics Laws
  11. 4.11 Identification of Energy Conservation Theorem
  12. 4.12 Calculation of Electromagnetic Energy Flow
  13. 4.13 Calculation of Energy Flow in an Antenna

Practise this unit

The practical 50 The assessment itself: tools, materials and the marks Step-by-step guide 50 PPE, each step, what good looks like, common mistakes

Revise this unit

Exam-style questions 56 Written to CDACC standard, with answers Test yourself 159 Multiple-choice, one at a time Practise questions 123 Quick recall — check you know the facts
3 more for this unit
Oral exam preparation 36 What the assessor asks, and how to answer out loud Worked calculations 28 Step-by-step maths with the common mistakes Quick cards 790 Myth busters, skill tips and scenarios

Beyond the syllabus

Decision simulator 4 On site, what would you do? Workplace scenarios 81 Real site situations — what would you do? Turn this into income 48 Where this skill earns — what to charge, how to find clients

Other units in Module V