EIM - Electrical materials

1. ELECTRICAL SUPPLIES &
MATERIALS

2. Electrical Supplies & Materials
Electrical materials are developed and constructed for a special
purpose such as to:
1. control the flow of current in an electrical circuit;
2. carry electrical current from the source to the load or current
consuming apparatus;
3. hold and secure wires to its fixtures inside and outside houses
and buildings; and
4. protect the houses, buildings, appliances’ and instruments from
any destruction and damage

3. The following are the most
commonly used electrical
materials.
1. Convenience Outlet
2. Male Plug
3. Lamp Holders
4. Switch
5. Fuse
6. Circuit Breaker
7. Junction Box
8. Utility Box
9. FlatCord
10. ElectricalWire /Conductor
11. Conduits/Pipes
12. Clamps
13.Connectors

4. Convenience Outlet
A device that acts as a
convenient source of
electrical energy for current
consuming appliances. It is
where the male plug of an
appliance is inserted and is
usually fastened on the wall
or connected in an extension
cord. It may be single, duplex,
triplex and could be source
type or flush type.

5. Male Plug
A device inserted to a
convenience outlet to
conduct electric current.A flat
cord is attached to it on one
end and the other end is
connected to a current-
consuming instrument or
appliance.

6. Lamp Holders
A device that hold and
protect the lamp and are also
called Lamp
Sockets/receptacles.These
come in many designs and
sizes.They are classified as
flush, hanging (weather
proof/chain), and surface
types.

7. Switch
A device that connects and disconnects
the flow of electric current in a circuit.
There are many shapes, designs, and
types ad they are classified as hanging,
flush and surface types.

8. Fuse
A circuit protective device
that automatically blows and
cuts the current when
overload or short circuit
happens.

9. Circuit Breaker
A protective device used to
automatically blow and cut
the current when trouble in
the circuit such as short circuit
or overload occurs.

10. Junction Box
An octagonal shaped
electrical material where the
connections or joints of wires
are being done. It is also
where the flush type lamp
holder is attached.This could
be made of plastic or metal
(PVC) Polyvinylchlorode

11. Utility Box
A rectangular shaped plastic
or metallic (PVC) material in
which flush type convenience
outlet and switch are
attached.

12. Flat Cord
A duplex stranded wire used
for temporary wiring
installation and commonly
used in extension cord
assembly. It comes in a roll of
150 meters and sizes of gauge
# 18 and gauge #16 awg (
AmericanWireGauge).

13. Electrical Wire /Conductor
Stranded Wire
A device that hold andWhich
is made of multiple strands
joined together to make a
single wire.
Solid Wire
It is made of a single strand of
copper or aluminum wire.
These are used in wiring
installation inside the
buildings.

14. Conduits/Pipes
An electrical materials used as the
passage of wires for protection and
insulation.These could be rigid metallic,
flexible metallic conduit (FMC), rigid
nonmetallic (PVC), and flexible non-
metallic or corrugated plastic conduit
(CPC).

15. Clamps
It is an electrical materials
used to hold and anchor
electrical conduits to their
proper position.

16. Connectors
It is used to attached metallic
or non-metallic conduit to the
junction or utility boxes.

17. Good job, Grade 8! You are now
familiar with the different tools
and materials and their
functions. Now, in order to
deepen our knowledge, let us
have this activity

18. I am giving you 1 minute to
identify the following, write
T if it is Tool and M if it is
Material, write answer on your
answer sheet.

19. Time is up!
Let’s reveal the answer

20. One of the basic project in
electrical installation is to
make an extension cord, as
part of this project your
activity is to list down tools
and materials needed to make
this extension cord.
I am giving you 2 minutes to
do this activity

21. EXTENSION CORD
TOOLS MATERIALS
1. 1.
2. 2.
3. 3.

22. Time is up!
Let’s reveal the answer
EXTENSION CORD
TOOLS MATERIALS
1.Pliers 1.Flat cord
2.Wire stripper/Electrician’s Knife 2. Outlet
3.Screwdriver 3. Male plug

23. Very good, Grade 8! I can see
that you understand our lesson
very well, now, let us assess
your learnings!
Identify me!
Here are the directions:
Identify the following, write
the name of the tool and
material describe to the
following statement.

24. Are you ready? Let’s begin!
1. This has a cross tip resembling a positive (+) sign. It is
used to drive screws with cross slot heads.
If your answer is Philip screw driver, you're right!
2. This is tools used in driving or pounding and pulling out
nails.
If your answer is hammer, very good!

25. 3. A tool used for removing insulation of medium sized wires
ranging from gauge #10 to gauge #16.
If your answer is wire stripper, very good!
4. Is a device inserted to a convenience outlet to conduct
electric current. A flat cord is attached to it on one end and the
other end is connected to a current consuming instrument or
appliance.
If your answer is male plug, you're right!
5. This is a circuit protective device that automatically blows
and cut the current when an over load or short circuit happens.
The answer is circuit breaker

26. How was that exercise?
I am confident that
you got all the
answers right. And for
that, job well done
Grade 8!

27. That ends our lesson for
today grade 8 students. I
hope you learned a lot
about different tools and
materials use in electrical
installation and
maintenance. Thank you for
watching.
Again I’m teacher Rowel.
And see you next time!