Basic Electricity - Senior Secondary 2 - Power sockets outlets

Power sockets outlets

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TERM: 3RD TERM

WEEK EIGHT

Class: Senior Secondary School 2

Age: 16 years

Duration: 40 minutes of 5 periods each

Date:

Subject: BASIC ELECTRICITY

Topic: POWER SOCKETS OUTLETS

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

I.) Identify the advantages and disadvantages of ring circuit

II.) Identify the advantages and disadvantages of radial circuit

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S

ACTIVITY

STEP 1

INTRODUCTION

The teacher discusses the advantages and disadvantages of ring circuit

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher discusses the advantages and disadvantages of radial circuit

Students exhibit attentiveness and active engagement

STEP 3

NOTE TAKING

The teacher writes a summarized

note on the board

The students

copy the note in

their books

 

NOTE

POWER SOCKETS OUTLETS

Advantages of ring circuits

  1. Ring circuits provide more efficient distribution of electricity due to the loop configuration, reducing voltage drop over longer distances.
  2. Ring circuits offer greater fault tolerance as electricity can flow in both directions around the loop, providing redundancy in case of a break or fault in the circuit.
  3. Ring circuits can often use smaller cable sizes compared to radial circuits for the same load, resulting in cost savings and easier installation.

Disadvantages of ring circuits

  1. Ring circuits are more complex to design and install compared to radial circuits, requiring careful planning and attention to detail to ensure proper configuration and balancing.
  2. Locating and isolating faults in ring circuits can be more challenging compared to radial circuits, as the loop configuration can make it harder to pinpoint the exact location of a fault.
  3. Balancing loads between the two legs of the ring circuit is essential to ensure even distribution of electricity, which can be tricky to achieve in practice.

Advantages of radial circuits

  1. Radial circuits are simpler to design and install compared to ring circuits, with electricity flowing in one direction from the source to the connected outlets or devices.
  2. Each outlet or device in a radial circuit can be individually protected by its own fuse or circuit breaker, allowing for easier fault detection and isolation.
  3. Faults in radial circuits are typically easier to locate and isolate compared to ring circuits, as the branching pattern of the circuit simplifies the troubleshooting process.

Disadvantages of radial circuits

  1. Voltage drop can occur over longer distances in radial circuits, especially for outlets located further away from the source, potentially leading to reduced performance or efficiency.
  2. Radial circuits offer less fault tolerance compared to ring circuits, as there is no redundancy in the wiring configuration, meaning a single break or fault can interrupt the entire circuit.
  3. Radial circuits may require larger cable sizes compared to ring circuits for the same load, particularly for longer distances, resulting in higher material costs and more challenging installation.

EVALUATION: 1. Mention 4 advantages and 3 disadvantages of ring circuit

  1. State 4 advantages and 2 disadvantages of radial circuit

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively