The document discusses electrical symbols that represent various electrical devices in diagrams and plans. It provides examples of common symbols used for items like light bulbs, outlets, switches, panels, and more. Electrical symbols provide a simplified visual guide for electricians and contractors to understand circuits and wiring in a building. Recognizing these symbols is important for interpreting electrical plans and diagrams.

1. ELECTRICAL SYMBOLS
PREPARED BY:
MAR. ROGELIO T. FLORES

2. ELECTRICAL SYMBOLS
• Electrical Symbols are small
drawings or pictograms used to
represent various electrical devices
in a diagram or plan of an electrical
circuit.
• These symbols are used in
sketching schematic diagrams and
electrical plans for numerous types
of electrical works.
• These are very useful guide for an
electrician or electrical contractor,
thus, making the wiring easier to
install.

3. ELECTRICAL SYMBOLS
ACTUAL IMAGE ELECTRICAL SYMBOL
BULB
PIN LIGHT

4. ELECTRICAL SYMBOLS
ACTUAL IMAGE ELECTRICAL SYMBOL
TRACK LIGHT
DOWN LIGHT

5. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
EXIT LIGHT
CONVENIENCE
OUTLET (C.O)

6. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
SPECIAL PURPOSE
OUTLET (S.P.O)
EXHAUST FAN

7. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
FLUORESCENT
LIGHT
FLOOR OUTLET

8. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
COMPUTER
OUTLET
GROUND

9. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
DISTRIBUTION
PANEL
SERVICE
ENTRANCE

10. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
FUSE
CIRCUIT BREAKER

11. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
CIRCUIT HOMERUN
SINGLE SWITCH
OR
ONE GANG
S1 or SA or

12. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
TWO GANG SWITCH S2 or SAB or
THREE GANG
SWITCH
S3 or SABC or

13. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
3 WAY SWITCH S3w or
4 WAY SWITCH S4W or

14. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
BATTERY
SINGLE PHASE 1

15. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
THREE
PHASE 3

16. ELECTRICAL SYMBOLS
DEFINITION ELECTRICAL SYMBOL
WIRE CONNECTED
WIRE NOT
CONNECTED

17. LET’S ANSWER
DIRECTION: Match the electrical symbols in Column A with the
corresponding image in column B. Write the letter of your answer in the
space provided before each number.

18. COLUMN A COLUMN B
1.
2.
3.
4.
5.
A.
B.
C.
D. E.

19. LET’S ANSWER
DIRECTION: Name the following electrical materials and devices. Write
the letter of your answer in the space provided before each number.

20. ELECTRICAL
DEVICES
NAME
1.
2.
3.
4.
5.

21. LET’S DO THIS
DIRECTION: Identify and name symbols and list the number of electrical
devices in the electrical plan.

22. ACTIVITY: ELECTRICAL SYMBOL