1. LESSON 1: Prepare Electrical
Materials and Tools
Prepared By: Mr. Benandro A. Palor

2. After going through this module, you are expected to:
• identify and explain the use of different electrical tools
and materials;
• identify the different forms used in electrical installation
• perform basic manipulation of electrical tools and
materials; and
• observe safety precautions in handling electrical tools and
materials

3. I CHALLENGE YOU!

4. _ L _ W _ A _ M _ R

5. L _ _ G _ O _ E P _ _ E _ S

6. H _ C _ S _ W

7. S T _ _ Y S _ R _ _ D _ _ V _ R

8. W _ R _ S T _ _ P _ _ R

9. Lesson 1: Prepare Electrical
Materials and Tools
This Lesson covers the common electrical tools and materials
along with their purpose or function, illustrations are provided to help you
familiarize yourself with them. Always observe safety in handling or
manipulating any tools to ensure a safe workplace and avoid accidents.
The following are the most common electrical tools and devices
that you may encounter in the electrical installation and maintenance
exploratory courses.

10. ELECTRICAL TOOLS

11. 1. SCREWDRIVERS – Tools made of steel and classified
according to its tip and used to loosen or tighten screws.
A. STANDARD SCREWDRIVER
Also known as flathead
screwdriver and has a tip that
resembles a negative (-) sign
and used to drive screws with a
single slot head
ILLUSTRATION

12. B. PHILIPS SCREWDRIVER
Also known as crossed-tip
screwdriver or positive (+) head
screwdriver and used to drive
screws with cross slot heads.
ILLUSTRATION

13. C. STUBBY SCREWDRIVER
Either standard or philips
tip but the distinguishing part is
the short handle and shank used
for tight spaces
ILLUSTRATION

14. 2. CLAW HAMMER
DESCRIPTION
It is the most commonly
used hammer with a flat face
used for pounding or driving
nails and a claw on the other
end used for pulling out nails.
ILLUSTRATION

15. 3. PLIERS – Tools made of metal with rubber insulated
handles used for holding, gripping and cutting wires.
A. COMBINATION PLIERS
Also known as lineman’s
pliers and used for holding,
gripping and cutting wires
ILLUSTRATION

16. B. LONG NOSE PLIERS
Used for holding, gripping
and cutting fine wires with an
elongated end which is used to
reach tight spaces or small
openings, it can also make
terminal loops for wires
ILLUSTRATION

17. C. DIAGONAL CUTTING PLIERS
This type of plier is
specifically used for cutting
wires.
ILLUSTRATION

18. 4. WIRE STRIPPER
DESCRIPTION
Used for removing wire
insulation of medium wire sizes
(#10 - #16 AWG)
ILLUSTRATION

19. 5. HACKSAW
DESCRIPTION
Primarily used to cut
electrical conduits
ILLUSTRATION

20. ELECTRICAL
MATERIALS

21. 1. CONVENIENCE OUTLET
DESCRIPTION
A device which serves as source of electrical energy for
electrical appliances, it is basically a device with slots where
an appliance plug is inserted. There are two common types of
convenience outlet such as:

22. A. FLUSH TYPE
These are convenience
outlets that are embedded in the
wall and the wirings are not
exposed
ILLUSTRATION

23. B. SURFACE TYPE
A type of convenience
outlet that is installed at the
surface of the wall and the
wirings are exposed, a typical
example are those used in
common extension cords
ILLUSTRATION

24. 2. MALE PLUG
DESCRIPTION
A device with metal
prongs attached at the end of
the cord of electrical appliances
which is inserted to the slot of
the convenience outlet.
ILLUSTRATION

25. 3. LAMP HOLDERS – Also known as sockets, it is where the bulb
or lamp is inserted/secured and supplies electrical energy to
energize the bulb
A. FLUSH TYPE
A type of lamp holder
wherein the wirings are not
exposed or embedded in the
ceiling
ILLUSTRATION

26. B. SURFACE TYPE
A type of lamp holder
wherein the wiring connections
are exposed to and from the
device
ILLUSTRATION

27. 4. SWITCH – A device that connects and disconnects the
flow of electric current in a circuit.
A. FLUSH TYPE
A type of switch wherein
the wirings are not exposed or
embedded in the wall
ILLUSTRATION

28. B . SURFACE TYPE
A type of switch wherein
the wirings are exposed or
visible in a wall or surface
ILLUSTRATION

29. 5. OVERCURRENT PROTECTIVE DEVICES- used to protect the
electrical circuit from dangerous effects of overload or short circuit
A. FUSE
A disposable overcurrent
protective device with a strip of
wire that melts and cuts the
flow of current in a circuit in
case of overcurrent or short
circuit
ILLUSTRATION

30. B. CIRCUIT BREAKER
An overcurrent protective
device which automatically
blows and cuts (trip) the current
when short circuit or overload
occurs, once the fault is
corrected, the circuit breaker
may be turned and reuse
ILLUSTRATION

31. 6. ELECTRICAL BOXES- These may be made of metal or
plastic PVC (Polyvinyl Chloride)
A. JUNCTION BOX
An octagonal shaped
electrical material where the
connections or joints of wires
are being done. It also where
the flush type lamp holder is
attached.
ILLUSTRATION

32. B. UTILITY BOX
A rectangular shaped
electrical box where flushed
type convenience outlets and
flushed type switches are
attached or installed
ILLUSTRATION

33. 7. FLAT CORD
DESCRIPTION
A duplex stranded wire
commonly used in extension
cord assembly and appliance
cords, it may also be used for
temporary wiring installation
ILLUSTRATION

34. 8. ELECTRICAL WIRES
DESCRIPTION
Also known as electrical conductors made of copper or
aluminum which are used in house wiring installations. Its size
varies depending on its application or job specification
There are two types of wires commonly used such as Stranded
Wire and Solid Wire.

35. A. STRANDED WIRE
Made of multiple strands
joined together to make a single
wire.
ILLUSTRATION

36. B. SOLID WIRE
Made of single strand of
copper or aluminum
ILLUSTRATION

37. 9. ELECTRICAL CONDUITS
DESCRIPTION
Also known as electrical pipes that serves as passage and
protection of the wires. Depending on the materials used, There are
different kinds of electrical conduits or pipes:

38. A. RIGID METALLIC CONDUIT (RMC)
A thick-walled metal
tubing which can be threaded.
ILLUSTRATION

39. B. ELECTRICAL METALLIC TUBING (EMT)
A thin-walled metal
tubing which is less costly and
lighter than RMC’s
ILLUSTRATION

40. C. FLEXIBLE METALLIC CONDUIT (FMC)
A flexible tubing made of
thin metal
ILLUSTRATION

41. D. RIGID NON METALLIC CONDUIT
Also known as PVC or
Polyvinyl Chloride which is
commonly available in orange
color
ILLUSTRATION

42. E. FLEXIBLE NON METALLIC CONDUIT
Also known as Corrugated
Plastic Conduit (CPC) which is
commonly available in orange
color.
ILLUSTRATION

43. 10. CLAMPS
DESCRIPTION
Electrical materials used
to hold and anchor electrical
conduits in place which may be
made of metal or plastic
ILLUSTRATION

44. 11. CONNECTORS
DESCRIPTION
Also known as adaptors
are electrical materials used to
connect or attach electrical
conduits to electrical boxes,
may either be made of metal or
plastic
ILLUSTRATION

45. Lesson 2: Request Electrical
Supplies, Materials and Tools
Different Forms Used in Electrical Installation and Maintenance
Proper documentation is an important part of any profession,
to do so, different forms are used depending on the task to be
performed, the correctness of the entry of different forms is
necessary to monitor, acquire, or borrow right , complete and
accurate number of materials and tools needed in a specific
electrical job or provide job specifications.

46. 1. PURCHASE REQUISITION FORM
A document generated by a
user, department, or storeroom-
personnel to notify the purchasing
department items needed to order
which also indicates the quantity,
unity of measure, description, cost
and may also include other
specifications as needed. Also
known as purchase request or
requisition

47. 2. INVENTORY FORM
Is a proper and systematic
recording of the tools, materials,
supplies and equipment in an
enterprise which may also include
their condition, location, and/or
status. Inventories consist of raw
materials, work-in-progress
goods, and finished goods that are
considered to be the portion of a
business’s assets that are ready or
ready for sale or are disposed of

48. 3. JOB ORDER FORM/ WORK ORDER FORM
Is a written instruction to
perform a work according to
specified requirements, within
specified timeframe and cost
estimates

49. 4. BORROWER’S FORM
Is a form used to request for
tools and equipment needed for a
particular job. It indicates the
department that the borrower is
connected to, the date borrowed,
the job needed to be done, the
person who approved the request,
the date returned, and the
condition of the tools and
equipment borrowed

50. Thank You!
REFERENCE: Cabusora Jr., R. (2014) Electrical Installation and
Maintenance K to 12 – Technology and Livelihood Education
Learning Module, Department of Education, Pasig City.