Basic Electricity - Senior Secondary 2 - Project and practical work

TERM: 2^ND TERM

WEEK TWELVE

Class: Senior Secondary School 2

Age: 16 years

Duration: 40 minutes of 5 periods each

Date:

Subject: BASIC ELECTRICITY

Topic: PROJECT AND PRACTICAL WORK

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

I.) Carry out a simple domestic wiring.

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

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

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

NOTE

PROJECT AND PRACTICAL WORK

TITLE: DOMESTIC WIRING PRACTICALS

Materials and Equipment:

1. Electrical wires (typically insulated copper wires)
2. Electrical outlets
3. Light switches
4. Circuit breaker or fuse box
5. Wire nuts or connectors
6. Electrical tape
7. Wire strippers
8. Screwdriver
9. Electrical boxes
10. Wire staples or cable clips (for securing wires)

Procedure:

1. Planning: Determine the layout of your wiring, including the locations of outlets, switches, and fixtures. Plan the route the wires will take, considering safety regulations and avoiding obstacles.
2. Safety: Before starting any work, turn off the power supply to the area where you'll be working. Use a voltage tester to ensure that the power is off.
3. Installation of Electrical Boxes: Install electrical boxes at each outlet, switch, or fixture location. Use appropriate boxes for the type of installation (e.g., round boxes for light fixtures, rectangular boxes for outlets).
4. Running Wires: Run the electrical wires from the circuit breaker or fuse box to each outlet, switch, or fixture location. Secure the wires using staples or cable clips, ensuring they are not pinched or damaged.
5. Connecting Wires: Strip the ends of the wires using wire strippers to expose the copper. Connect the wires to the terminals of outlets, switches, and fixtures using wire nuts or connectors. Follow the manufacturer's instructions and ensure proper polarity (black wire to brass terminals, white wire to silver terminals, and green or bare wire to ground).
6. Grounding: Connect the green or bare wires to the grounding terminals of outlets, switches, and fixtures, and to the grounding bar in the circuit breaker or fuse box.
7. Securing Connections: Once all connections are made, secure them with electrical tape to prevent accidental disconnection.
8. Installation of Outlets and Switches: Install outlets and switches into their respective electrical boxes, securing them with screws. Ensure they are level and flush with the wall surface.
9. Testing: Turn the power back on and test each outlet, switch, and fixture to ensure they are working properly. Use a circuit tester to check for proper wiring and grounding.
10. Final Inspection: Once everything is tested and working correctly, conduct a final inspection to ensure all connections are secure and up to code. If necessary, have a qualified electrician inspect the installation to verify its safety and compliance with regulations.

EVALUATION: 1. Teacher evaluates students based on their performance from the practical.

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively