Introduction to Electrical Installation and Maintenance

2. LESSON 1
INTRODUCTION TO
ELECTRICAL INSTALLATION
AND MAINTENANCE
Prepared by:
MR. JHUNALVIN B. SANTOS
TLE 8 Teacher

3. Open-Ended Question
Direction: Complete the clauses below with your
opinion or prior knowledge about the subject
Electrical Installation and Maintenance.
1. I have the basic knowledge on
__________________________________________
__________________________________________
__________________________________________
2. I have the basic skills in
__________________________________________
__________________________________________
__________________________________________

4. TLE – Technology and Livelihood Education
Four Major Areas
1. Home Economics
2. Industrial Arts
3. ICT
4. Agriculture and Fishery Arts
TVL – Technical Vocational Livelihood
For Grade 11 and Grade 12

5. Terminologies:
Electrical – relating to electricity or something
to do with the application of electricity.
Installation – the act or process of making a
machine, a service or the act of installing
something.
Maintenance – the upkeep of property or
equipment.
Electrician - a person who works on and
repairs electrical equipment or one who
installs, maintains, operates electrical
equipment.

6. This is an exploratory course which leads you
to Electrical Installation and Maintenance
National Certificate Level II (NC II). It covers
competencies that a Grade 7/Grade 8
Technology and Livelihood Education (TLE)
student ought to possess, namely:
Prepare electrical supplies, materials, and tools;
Perform mensuration and calculations;
Interpret technical drawings and plans;
Maintain tools and equipment; and
Practice occupational health and safety.

7. COMMON COMPETENCIES
Use Hand Tools
Perform Mensuration and Calculation
Prepare and Interpret Technical Drawing
Apply Quality Standards
Terminate and Connect Electrical Wiring and
Electronic Circuits
Career Opportunities
A person who has achieved this Qualification is
competent to be:
Building-Wiring Electrician
Residential / Commercial-Wiring Electrician
Maintenance Electrician

9. ELECTRICAL INSTALLATION

10. BUILDING WIRING ELECTRICIAN

11. RESIDENTIAL WIRING ELECTRICIAN

12. COMMERCIAL WIRING ELECTRICIAN

13. MAINTENANCE ELECTRICIAN

14. CUTTING, STRIPPING, SPLICING, TYING, SOLDERING

15. USING OF ELECTRICAL TOOLS AND EQUIPMENT

16. EXTENSION CORD ASSEMBLY

17. COMMON WIRE SPICES AND JOINTS

18. Measurement Conversion
English units and equivalents
12 inches (in) = 1 foot (ft)
1 foot (ft) = 12 inches (in)
3 feet (ft) = 1 yard (yd)
1 yard (yd) = 3 feet (ft)
1 yard (yd) = 36 inches (in)
36 inches (in) = 1 yard (yd)
Metric units and equivalents
10 millimeters (mm) = 1 centimeter (cm)
1 centimeter (cm) = 10 millimeters (mm)
10 centimeters (cm) = 1 decimeter (dm)
1 decimeter (dm) = 10 centimeters (cm)
10 decimeters (dm) = 1 meter (m)
1 meter (m) = 10 decimeters (dm)

19. VOM TESTING

20. VOM TESTING

21. ELECTRICAL WIRING PLAN

22. ELECTRICAL CIRCUITS

23. ELECTRICAL SAFETY SIGNS AND LABELS

24. ELECTRICAL SYMBOLS

25. ACTIVITY #1
Set you own goals and targets in learning electrical
installation and maintenance by following the given
format below. Let them write their answer in a ½
of paper.

26. Quiz #1
Direction: Enumerate the following. Write your
answer at the back of your learning journal.
1-5. 5 TOPICS related to electrical installation and
maintenance exploratory course that the Grade 8
students like you ought to possess.
6-8. 3 Electrical fixtures, supplies or materials
found in your community.
9-10. 2 Career opportunities in Electrical
Installation and Maintenance

27. Assignment:
Read and study the lesson about safety
practices in using electrical hand tools and
equipment.
Reference: Grade 8 K to 12 Electrical
Installation and Maintenance Exploratory
Course Learning Module / Hand-outs
15.