Electrical Signs and
Symbols
Ms. Mary Grace B. Anticuando
Take your pick!!!
Draw the ff:
a. Conductor
b. Floor Outlet
Describe
the ff:
a.Male plug
b. switch
Mary Grace B. Anticuando
ELECTRICAL SIGNS
- A warning Icon in a picture
symbol intended to alert
you, and/or to instruct you
how to avoid a potentially
hazardous condition
Mary Grace B. Anticuando
ELECTRICAL SIGNS
CAUTION- Indicates
some precautionary
measures against
potentially hazardous
situations which, if not
avoided, may result in
minor or moderate
injury
Mary Grace B. Anticuando
SAFETY ALERT-
Indicates that a person
should observe extra
awareness
PROHIBITION
- Means that any activity
stated by the symbol is
not allowed
Mary Grace B. Anticuando
DANGER- Specifies
hazardous situation which,
if not avoided, will result in
serious injury or even death
WARNING- specifies a
potentially hazardous
situation which, if not
avoided, could result in a
serious injury or even death
Mary Grace B. Anticuando
READ AND UNDERSTAND
INSTRUCTION MANUAL-
means that a person should
do some reading before
doing any activity.
WEAR EYE PROTECTION
-indicates that a person
should wear safety goggles
or any related protection for
the eyes
Mary Grace B. Anticuando
ELECTRICAL HAZARD-
Indicates that electrical
hazard is present in the area
VOLTAGE DANGER
-indicates high voltage in
the area and surrounding
equipment
Mary Grace B. Anticuando
ELECTRICAL SYMBOLS
- Are small drawings or
pictograms used to
represent various electrical
devices in a diagram or
plan of electrical circuit
Mary Grace B. Anticuando
ELECTRICAL SYMBOLS
SYMBOL DESCRIPTION
Conductor/wire
Terminal
Switch
Connected wires
Cell
Mary Grace B. Anticuando
SYMBOL DESCRIPTION
Ammeter
Voltmeter
Galvanometer
Wattmeter
Bell
Mary Grace B. Anticuando
SYMBOL DESCRIPTION
Push Button
Battery
Resistor
Diode
Capacitor
Mary Grace B. Anticuando
SYMBOL DESCRIPTION
Fuse
Circuit Breaker
Wires not connected
Male plug
S₁ Single Pole Switch
Mary Grace B. Anticuando
SYMBOL DESCRIPTION
Ground
Lightning Arrester
Kilowatt-Hour Meter
Power Panel Board
Lighting Panel Board
Mary Grace B. Anticuando
SYMBOL DESCRIPTION
Speaker
Antenna
Service Entrance (3wires)
Special Purpose Outlet
WP
Weatherproof Outlet
Mary Grace B. Anticuando
SYMBOL DESCRIPTION
Fluorescent Lamp
Incandescent Lamp
Buzzer
Duplex Convenience Outlet
R
Range Outlet
Floor Outlet
Mary Grace B. Anticuando
Answer the ff. questions:
1. What is an electrical signs? Electrical
symbols?
2. When do we use an electrical symbol and
electrical signs?
3. How important are the electrical signs
and symbols?
Mary Grace B. Anticuando
Group Activity
Draw the electrical plan of the ff.
1. School canteen
2. School Library
3. Science laboratory
4. ICT room
5. Reading Center
Mary Grace B. Anticuando
SCORING RUBRICS
CRITERIA % SCORE
Workmanship 30%
Creativity 30%
Accuracy 30%
Speed 10%
Mary Grace B. Anticuando
Agreement
Draw the electrical plan of your own
house.
Mary Grace B. Anticuando

Electrical signs and symbols