2. Definition of Terms
Ampere - a unit of measure of electric current
Circuit - the path of electric current from the source to
the components and goes back to the source
Kilowatt - a unit of power which is equivalent to 1000w
Conductor - a wire or a cord which provides path for
current flow
Resistance - the quality of electric current measured in
ohms that resist the flow of current
3. Hot wire - a wire through which current flows
Insulator – material used to cover electric
wires which may be made from plastic,
rubber, or asbestos.
Tools - are implements used to modify raw
materials for human use Corrugated plastic
conduit (CPC) - commonly known as flexible
non-metallic conduit or the “moldflex”
Connectors and Adapters - accessories that
are used to connect from boxes to conduits
or raceways to the other boxes in the
electrical system
4. Metallic Conduits- metal raceways that was classified into
four; rigid steel conduit (RSC), intermediate metallic conduit or
tubing (IMC or IMT), electrical metallic conduit or tubing (EMC or
EMT) and the flexible metallic conduit (FMC)
Non-metallic conduits- plastic conduits or raceways
designed to be a channel of wire that are classified as; rigid non-
metallic conduit or the PVC, the flexible nonmetallic or CPC, and
the surface plastic molding
5. Electrical Tools and
Equipment
Electrical task can be accomplished
systematically to save time, effort, and resources.
Most of the work cannot be done using bare
hands. To do the task, electrical tools or
equipment are needed to perform the job. This
lesson will discuss the function/use of each tool or
equipment used in electrical wiring installations.
6. ELECTRICAL TOOLS AND EQUIPMENT:
SCREW DRIVERS
-are made of steel hardened and tempered at the
tip used to loosen or tighten screws with slotted
heads. They come in various sizes and shapes.
7. ELECTRICAL TOOLS AND EQUIPMENT:
A. Standard/Flat Screw
Driver
-The blade tip is wedge-
shaped and resembles a
negative (-) sign. This is
used to drive screws with
a single slot head.
8. ELECTRICAL TOOLS AND EQUIPMENT:
B. Philips Screw Driver-
This has a cross tip
resembling a positive
(+) sign. This is used to
drive screws with cross
slot heads.
9. ELECTRICAL TOOLS AND EQUIPMENT:
C. Stubby Screw Driver
It comes in either
Standard or Philips
screw driver with short
shank or blade and a
shorted handle used to
turn screws in tight
space where standard
screw driver cannot be
used.
10. ELECTRICAL TOOLS AND EQUIPMENT:
D. Allen Screw Driver/Wrench
This could be in the shape of
a screw driver or a wrench. Its
function is to drive screw with
hexagonal slot head.
11. ELECTRICAL TOOLS AND EQUIPMENT:
HAMMERS
These are tools used in driving
or pounding and pulling out
nails. They are made of hard
steel, wood, plastic or rubber.
The following are types of
hammer:
A. Claw hammer
B. Mallet(rubber head)
C. Ballpeen hammer
12. ELECTRICAL TOOLS AND EQUIPMENT:
PLIERS
These made from metal with
insulators in the handle and
are used for cutting, twisting,
bending, holding, and
gripping wires and cables.
13. ELECTRICAL TOOLS AND EQUIPMENT:
A. Combination Pliers
(Lineman’s Pliers)
This is used for gripping,
holding, and cutting
electrical wires and cables
and even small nails. They
are usually used by
linemen in doing heavy
tasks.
14. ELECTRICAL TOOLS AND EQUIPMENT:
B. Side Cutting Pliers
This type of pliers is used
for cutting fine, medium
and big wires and cables.
15. ELECTRICAL TOOLS AND EQUIPMENT:
C. Long Nose Pliers
This is used for cutting
and holding fine wires.
This can reach tight space
or small opening where
other pliers cannot reach
and also used in making
terminal loops of copper
wires. .
16. ELECTRICAL TOOLS AND EQUIPMENT:
WIRE
STRIPPER
A tool used for
removing insulation of
medium sized wires
ranging from gauge #10
to gauge #16
17. ELECTRICAL TOOLS AND EQUIPMENT:
ELECTRICIAN’S KNIFE
This is used by linemen to remove insulation of wire
and cables in low and high voltage transmission lines.
18. ELECTRICAL TOOLS AND EQUIPMENT:
PORTABLE
ELECTRIC DRILL
A small drilling machine
with a chuck capacity of ¼‖
to 3/8‖. It is used in making
holes on metal sheets and
concrete walls.
19. ELECTRICAL TOOLS AND EQUIPMENT:
HACKSAW
This tool is used to cut
metal conduit and armored
cable
