Sime- Detailed lesson Plan
I. OBJECTIVES:
At the end of the lesson the students will be able to:
a. Identify the purpose of connecting 3-way switch.
b. Performed 3-way connection in two location
c. Value the importance of safety precaution in connecting the 3-way switch in two different location.
II. CONTENT
A. Subject Matter : 3-way switch
B. Materials:
1. 3-way switch
4. Junction box
2. THHN wire
5. Receptacle
3. Incandescent bulb
6. Utility box
C. Tools:
1. Multi-tester
2. Combination plier
3. Side cutting plier
4. Standard screw driver
D. References:
a. Learning Element: Installing switches information sheet 2 page 7-10.
b. http://www. Easy-to-do-it-yourself-home improvements.com/3-way-switch-wiring- diagram.html.
III. LEARNING ACTIVITY
Teachers Activity
A. Preparatory Activities
* Prayer
* Checking of attendance
Review/ recall
Class can you still remember our past lesson?
Last meeting we were able to discussed about PPE- PERSONAL PROTECTIVE EQUIPMENT
B. Activity
To find out our topic we will do a drill,
I will show you something,
this tells us what is our topic now.
C. Analysis
Class have you seen a light that is controlled in two different location?
Presentation of the lesson
This time we will learn how to connect the 3-way switch in two different locations.
Discussion:
A 3-way switch is an electrical switch that has 3 terminals
used to control a light in two different locations. This three terminal are, common terminal (letter C) , no.1
terminal, and no.3 terminal. (travelers terminal).
Trade terms:
1. Energize- to give energy or supply with an electric current.(PHYSICS)
2. Terminals- where the wire is part of an electrical wire that is connected or screws.
3. THHN- thermoplastic,high, Heat , Nylon
Schematic diagram of 3-way switch connection
L1
L2
Circuit breaker
Bulb
N0.1 traveller wire
1
3
3-way switch
C
N0.2 traveller wire
Materials:
Thhn wire
Junction box
Utility box
Incandescent bulb
Circuit breaker
2- 3way switch
Tools:
Combination plier
Side cutting plier
Multi- tester
Philips screw driver
Standard screw driver
*Precations and Reminders:
In any electrical works, safety precautions comes first.
That’s why we also need to discuss some safety precautions
In order to achieve a safer and better result of works
So what are the reminders:
Safety Precautions:
1.Always wear personal protective equipment( PPE)
2. Always have presence of mind while working.
3. Do not connect directly to the source current.
4. Make sure that the two opposite lines not be contact
With each other.
5. Used appropriate tools in joining two wires.
6. Test the circuit before connecting it to the source current
Steps in wiring 3- way switch
1. Prepare the diagram of the 3-way switch connection in two different location.
2. Connect the ground wire to the one terminal of the receptacle.
3. Connect the live wire to the common terminal of the 1st 3-way switch.
4. Connect the the n0.1 terminal of the 1st 3-way switch to the #1 terminal of the 2nd 3-way switch.
5. Connect the no.3 terminal of the 1st 3-way switch to the #3 terminal of the 2nd 3-way switch.
6. Connect the common terminal of the 2nd 3-way switch to the one terminal of the recceptacle.
7. Test the connection using multitester.
8. Energized.
E. Abstraction/Generalization
Now that we had already identify the steps in 3-way switch connections lets have a litle recap.
RUBRICS
F. Application:
( Actual Performance )
25
20
PERFORMANCE *Proper
( 25pts)
handling
*Improper
handling of
of all tools few tools
*Use
*Incomplete
proper
PPE
PPE
*Oserve
*Observe safety
safety
precautions
precaution at all times
at all
times
10
*Improper
handling of
tools
*Not
wearing
PPE
*Not
observing
safety
precautions
sometimes
G. Evaluation
1. how many switches do you need to construct a three way switch.
A. 1
B. 2
C. 3
D. 4
2. what is the purpose of three way light switch.
A. it allows you to dim the light
B. it allows you to control the light from two switches
C. it allows you to control three switches
D. it allows you to stop the flow of current
3. what does a “three” in a three way switch refer to?
A. three terminal in the switch
C. three position each switch can be set to.
B. three switches in the circuit
D. three lamp in two switch
4. What you must do in testing the electrical current.
A. turn of the switch
C. turn off power
B. remove all the light bulb
D. cut the wires
5. What is the most common type of personal of personal protective equipment used.
A. hard hat
C. gloves
B. safety shoes
D. safety switch
Asignment:
Research the schematic diagram of 3 way switch and 4 way connection.
Prepared by:
EMELITO T. COLENTUM & ARTIGAS
students