Basic Electricity - Senior Secondary 2 - Wiring regulations

Wiring regulations

Get it on Google Play
Get it on the Apple App Store
  1. Home
  2. Comprehensive Lesson Plan and Notes
  3. Senior Secondary 2
  4. Wiring regulations

TERM: 3RD TERM

WEEK TWO

Class: Senior Secondary School 2

Age: 16 years

Duration: 40 minutes of 5 periods each

Date:

Subject: BASIC ELECTRICITY

Topic: WIRING REGULATIONS

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

I.) Discuss wiring regulations concerning preparation of Cable for Connection to Terminals

II.) Discuss the regulations on Terminating Cables on Accessories

III.) State the differences between appliances and accessories:

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 explains the wiring Regulations Concerning Preparation of Cable for Connection to Terminals

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher discuss the regulations on Terminating Cables on Accessories  and discuss differences between appliances and accessories:

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

WIRING REGULATIONS

Wiring Regulations Concerning Preparation of Cable for Connection to Terminals

  1. Stripping Insulation: The insulation should be stripped carefully to expose the appropriate length of conductor required for termination. Over-stripping should be avoided to prevent exposure of conductor strands beyond the terminal.
  2. Twisting Strands: For stranded conductors, the strands should be twisted tightly together to form a compact bundle, ensuring good contact and preventing fraying.
  3. Tinning (Optional): Tinning involves coating the exposed conductor with solder to prevent oxidation and enhance conductivity. While not always required, it can be beneficial for ensuring reliable connections.
  4. Insertion into Terminal: The prepared conductor should be inserted securely into the terminal, ensuring that all strands are fully seated and making good contact with the terminal surface.
  5. Tightening Terminal Screws: Terminal screws should be tightened firmly to establish a secure connection without damaging the conductor or terminal.

Regulations on Terminating Cables on Accessories

  1. Selection of Suitable Accessories: Accessories such as switches, outlets, and connectors should be selected based on the intended application and electrical requirements.
  2. Proper Termination Method: Cables should be terminated using the appropriate method recommended by the manufacturer of the accessory. This may involve screw terminals, push-in connectors, crimp connectors, or other termination methods.
  3. Correct Cable Orientation: Cables should be terminated according to the manufacturer's instructions, ensuring that the conductors are properly aligned and secured within the accessory.
  4. Ensuring Insulation Integrity: The termination process should not damage the insulation of the cable or create any sharp edges that could cause insulation damage or short circuits.
  5. Testing and Inspection: After termination, the connections should be tested and inspected to ensure they are secure and free from defects or damage.

Differences between appliances and accessories:

Aspects

Appliances

Accessories

Function

Perform a specific task or provide a service

Facilitate the connection, control, or protection of electrical circuits

Examples

Refrigerator, television, toaster, washing machine

Switches, outlets, connectors, junction boxes.

Power Consumption

Typically consume electrical power to operate. 

Generally do not consume significant power and act as passive components.

Mobility

May or may not be portable, depending on size and design.

Typically fixed in place within an electrical system, though some may be portable (e.g., extension cords).

Complexity

Can range from simple to highly complex devices

Generally simpler in design compared to appliances

Installation

Often require specialized installation procedures.

Installed according to standard wiring practices and regulations.

EVALUATION: 1. Mention 4 wiring regulations concerning preparation of Cable for Connection to Terminals

  1. Mention 3 regulations on Terminating Cables on Accessories
  2. State 4 differences between appliances and accessories

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively