grade-10-tle-eim_compress

10

ELECTRICAL
INSTALLATION &

MAINTENANCE

LEARNING ACTIVITY SHEETS

Republic of the Philippines

Department of Education

REGION II – CAGAYAN VALLEY

COPYRIGHT PAGE

Learning Activity Sheet in Electrical Installation and Maintenace
(Grade 10)

Copyright © 2020

DEPARTMENT OF EDUCATION
Regional Office No. 02 (Cagayan Valley)
Regional Government Center, Carig Sur, Tuguegarao City, 3500

“No copy of this material shall subsist in any work of the Government of the Philippines. However,
prior approval of the government agency or office wherein the work is created shall be necessary
for exploitation of such work for profit.”

This material has been developed for the implementation of K to 12 Curriculum through the
Curriculum and Learning Management Division (CLMD). It can be reproduced for educational
purposes and the source must be acknowledged. Derivatives of the work including creating an
edited version, an enhancement of supplementary work are permitted provided all original works
are acknowledged and the copyright is attributed. No work may be derived from this material for
commercial purposes and profit.

Consultants: : ESTELA L. CARIÑO, EdD., CESO IV
Regional Director : RHODA T. RAZON, EdD., CESO V
Assistant Regional Director : RACHEL R. LLANA, PhD., CESO VI
Schools Division Superintendent : MARY JULIE A. TRUS, PhD., CESE
Asst. Schools Division Superintendents : OCTAVIO V. CABASAG, PhD
Chief Education Supervisor, CLMD : EVELYN V. RAMOS
Chief Education Supervisor, CID

Development Team: : FILOMENO M. VILORIA, MATTHEW L. MANGACCAT, JONARD A.
Writers ADALEM, DEXTER D. ALLAGA, PRIMO A. RIVERA, LARRY D.
SOMERA, BENITO BATARA, CHRISTOPHER N. AGSUNOD,
WILFRED P. LIGMAYO

Content Editor : WILLIAM T. ENRIQUEZ JR.
Language Editor : RONNIE F. TEJANO
Illustrators :
Layout Artists : RODERIC B. GUINUCAY, IRA PATRICIA A. TONG
Focal Persons : ORLANDO D. VICENTE, PhD.

BERLITA E. GUILLERMO, PhD.
LESLIE S. DOMINGO
RIZALINO G. CARONAN

Printed by: DepEd Regional Office No. 02
Regional Center, Carig Sur, Tuguegarao City

NOTE: Practice Personal Hygiene Protocols at all times.

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Table of Contents

COMPENTENCIES ................... PAGE NUMBER
Wires and Cables ................... 1-6
Wiring Diagrams ................... 7-12
Flexible Armored Cable Wiring Installation ................... 13-17
Non-Metallic Sheathed Cable ................... 18-22
Flexible Metallic Tubing (FMT) ................... 23-26
Common Electrical Symbols 27-30

NOTE: Practice Personal Hygiene Protocols at all times.

ii

Time Allotment: 40 Hours

QUARTER I

Unit of Lesson: INSTALL ELECTRICAL LIGHTING SYSTEMS, AUXILIARY
OUTLETS AND LIGHTING FIXTURES
LO2- Install electrical lighting systems, auxiliary outlets and lighting fixtures

(TLE_IAEL10EL-Ia-IIj-1)

Topics: Time Allotment
Wires and cables --------------------------------- 5 hrs.
Common Electrical Symbols --------------------------------- 4 hrs.
Wiring Diagrams --------------------------------- 6 hrs.
Flexible Armored Cable Wiring --------------------------------- 9 hrs.
Non- Metallic Sheathed Cable --------------------------------- 3 hrs.
Flexible Metallic Tubing --------------------------------- 6 hrs.

NOTE: Practice Personal Hygiene Protocols at all times.

iii

ELECTRICAL INSTALLATION AND

MAINTENANCE (TLE-10)

Name of Learner: ________________________________ Grade Level: _____
Section: _________________________________________ Date: ____________

LEARNING ACTIVITY SHEET
WIRES and CABLES

Background Information for Learners

Imagine a world without wires and cables. If there are no wires and cables, our lives will
become dark and dreary because those provide electricity in our home. Without wires and
cables, none of our electronic equipment will work, wired appliances make our life easier and
more comfortable like electric fans, refrigerator, washing machine, television etc.

Learning Competency with Code

Install Electrical Systems, Auxiliary Outlets and Lighting Fixtures (TLE_IAEL10EL-Ia-IIj-
Select appropriate electrical tools, equipment and materials for specific tasks.
Apply suitable wiring method for the job.
Install electrical wiring systems using different types of wiring methods.

Activity 1

Directions: Read each item carefully. Choose the option that best describes the item and write the
letter of your choice on the space provided before the number.

____1. Which of the following has 2 or 3 conductors inside the cable that is used for exposed
or concealed installation in buildings?
A. Coaxial cable
B. Duralene
C. Durex wire
D. Sheathed cable

____2. What kind of cable is used for radio frequency antenna and radar receiver installation?
A. Coaxial cable
B. Control cable
C. Power cable
D. Royal cord

NOTE: Practice Personal Hygiene Protocols at all times.

1

_____3. Which of the options below are used for wiring machine tools, appliances and
control circuits?

A. Rockbestos
B. Appliance or electric wires
C. Machine tool wire
D. Duralene

____4. Which of the following contains a group of wires twisted to form a metallic ring?
A. Wire
B. Cable
C. Stranded wire
D. Solid wire

____5. Conductor carries electric current. Which of the following consists only of single
conductor?
A. Wire
B. Cable
C. Stranded wire
D. Solid wire

Activity 2

Directions: Write the type of electric wires and cables according to its description. Arrange
the jumbled letters to form the words.

___________________1. Y O R A L D C O R- This has 2 to 4 conductors, stranded and
used for portable cords in electrical equipment.(2 words)

___________________2. R O W E P C B L A E- This is used for underground, aerial, duct,
and direct burial wiring from 6,000 volts to 35 kilo volts.(2 words)

___________________3. T L F A D R C O- This has two sets of stranded conductors
separated by insulators. It is usually used for portable electrical equipment and for extension
wiring of a single bulb.(2 words)

___________________4. M C I T N E O R B A C L E-This shielded or unshielded cable has
conductors to 100 pairs, used for wiring interior communications, system and sound
distribution jacketed.(2 words)

__________________5. P P L A A I N E C B C A L E- This is used as wiring cord of
heating equipment in dry locations.(2 words)

NOTE: Practice Personal Hygiene Protocols at all times.

2

Activity 3
Direction: Convert the following wire gauge # (number) into wire millimeter.

Wire Gauge # Diameter in Millimeter (mm)

1. # 14
2. # 12
3. # 10
4. # 8
5. # 6

Activity 4

Directions: Sketch the type of wire on each number in the given box. Name a gadget or
appliance and identify where is it use.

Type of Wire Picture Gadget/Appliance/Application
1. Solid Wire
 Used for
building wiring in dry
and wet locations.
 Used for overhead

transmission lines and for
ground wires.

2. Stranded Wire  Used for
building wiring in dry
3. Non-metallic Sheathed and wet locations.
Cable (type NM).  Used for overhead
4. Flat Cord (type SPT)
transmission lines and for
5. Service Drop Cable ground wires.
 Used for exposed or
concealed installation in
buildings.

 It is usually used for
portable electrical
equipment and for
extension wiring of a
single bulb.
 Used for a service drop

cable.

NOTE: Practice Personal Hygiene Protocols at all times.

3

Scoring Rubrics

- Use the scoring rubrics below to assess the performance of the students

Criteria/Point 32 1

Drawing Accuracy Drawing is clear Drawing is clear and Cannot understand
and concise concise but not the drawing
concise ( no extra or presented
unnecessary
drawing)

Appropriate Line Types Number of lines There is an extra Number of lines
drawn is correct number of line drawn drawn incorrect

Drawing Neatness No erasures Minimal erasures With many erasures

Total Score

Reflection:

Complete this statement:

What I have learned in this activity _________________________________________

____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________

References:

Electrical Installation & Maintenance
Learner’s Material: Module 2
By: Development team of the Learner’s Material, pp 46-60

NOTE: Practice Personal Hygiene Protocols at all times.

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ANSWER KEY Picture Application
 Used for
Activity 1
1. D building wiring in dry
2. D
3. C and wet locations.
4. C  Used for overhead
5. D
transmission lines and
Activity 2 for ground wires.
1. ROYAL CORD  Used for
2. POWER CABLE building wiring in dry
3. FLAT CORD and wet locations.
4. INTERCOM CABLE
5. APPLIANCE CABLE 5
Activity 3
1. 1.6 mm
2. 2.0 mm
3. 3.5 mm
4. 5.5 mm
5. 8.0 mm

Activity 4

Type of Wire
1. Solid Wire

2. Stranded Wire
NOTE: Practice Personal Hygiene Protocols at all times.

3. Non-metallic Sheathed  Used for overhead
Cable (type NM). transmission lines and
for ground wires.
4. Flat Cord (type SPT)
 Used for exposed or
5. Service Drop Cable concealed installation in
buildings.

 It is usually used for
portable electrical
equipment and for
extension wiring of a
single bulb.

 Used for a service drop
cable.

Prepared by:
JONARD V. ADALEM
DEXTER D. ALLAGA
Name of Writer

NOTE: Practice Personal Hygiene Protocols at all times.

6

ELECTRICAL INSTALLATION AND
MAINTENANCE (TLE-10)

Name of Learner: ________________________________ Grade Level: ________________
Section: ________________________________________ Date: ______________________

LEARNING ACTIVITY SHEET

WIRING DIAGRAMS

Background Information for Learners

A wiring diagram is a simplified conventional pictorial representation of an electrical circuit.
It shows the components of the circuit as simplified shapes, power and connections between
the electrical devices.

A wiring diagram is a simple visual representation of the physical connections and physical
layout of an electrical system or circuit. This is unlike a schematic diagram, where the
arrangement used standard electrical symbols or abstract and graphic for wiring devices. A
pictorial diagram would show more detailed physical or external appearance of each
component in a circuit. A wiring diagram is often used to troubleshoot problems and to make
sure that the connections have been made and that everything is present.

Learning competency with code

Install electrical systems, auxiliary outlets and lighting fixtures.
(TLE_IAEI9-12EL-Ia-IIj-1)

Select appropriate electrical tools, equipment and materials for specific tasks.
Apply suitable wiring method for the job.
Install electrical wiring systems using different types of wiring methods.

Activity 1

Directions: Read each item carefully. Choose the option that best describes the item and write the
letter of your choice on the space provided before the number.

_____1. Which of the following types of diagram uses electrical symbols and shows the wire

terminations and connections?

a. Wiring diagram c. Line diagram

b. Schematic diagram d. Actual connection diagram

_____2. Which of the options below refers to a simple visual representation of the physical

connections and physical layout of an electrical system or circuit?

a. Wiring diagram c. Line diagram

b. Schematic diagram d. Actual connection diagram

_____3. What type of circuit applies when electric current flows from its source, back to the

source without interruption?

a. Closed Circuit b. Ground circuit c. Open circuit d. Short circuit

NOTE: Practice Personal Hygiene Protocols at all times.

7

_____4. Which of the diagrams below uses standard electrical symbols or abstract and graphic

for wiring devices?

a. Wiring diagram c. Line diagram

b. Schematic diagram d. Pictorial diagram

_____5. All of the following are advantages of electrical wiring diagrams EXCEPT_____.

a. Save time b. Save money c. Electrical shock d. Prevent injury

_____6. How many travelers are being used in four single pole switches (flush type) circuits?

a. 2 b. 3 c. 4 d. 5

_____7. In circuit problem “One lamp controlled by two 3-way switches in different

locations”, how many terminals are being used inside the junction box?

a. 3 b. 4 c. 5 d. 6

_____8. Which of the following shows more detailed physical or external appearance of each

component in a circuit?

a. Wiring diagram c. Line diagram

b. Schematic diagram d. Pictorial diagram

_____9. Which of the options below shows a representation of electrical connections of wiring

devices using single line and with slashes indicating the number of conductors in a

line?

a. Wiring diagram c. Line diagram

b. Schematic diagram d. Pictorial diagram

_____10. How many return wire/s are being used in 2-gang single pole switches?

a. 1 b. 2 c. 3 d. 4

Activity 2:

Directions: In the given line diagram below, indicate the number of wires in each
line/ conduit. (One point for every correct number of slashes in each line)

NOTE: Practice Personal Hygiene Protocols at all times.

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Activity 3:

Directions: Based on the pictorial diagram of “two lamps, Lamp A is controlled by two
3-way switches in different locations and Lamp B is controlled by single pole
switch”, draw the following diagrams:

 Schematic diagram
 Actual connection diagram
 Line diagram

- Use the scoring rubrics below to assess the performance of the students in
Schematic and Actual connection diagrams

Points Correct connections/ Diagrams of lamp A and lamp B
5 Correct connections/ Diagram of lamp A only
3 Correct connections/ Diagram of lamp B only
1

NOTE: Practice Personal Hygiene Protocols at all times.

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For line diagram:
One point for every correct number of wires/ slashes in each line/ Conduit

Reflection:

Complete this statement:

What I have learned in this activity

___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________

References:

BOOK

Guzman, Lando T., et al. Technology and Livelihood Education. INDUSTRIAL
ARTS. Electrical Installation and Maintenance. Learner’s Material: Module 2. First

Edition. Pasig City: Department of Education, 2018. pp 60-67

WEBSITES

https://www.electrical technology.org/2013/09/electrical-wiring.html
https://en.m.wikipedia.org/wiki/Multiway_switching
https://MrElectrician.TV

Answer key Activity 2:

Activity 1: 1. 2
2. 4
1. D 3. 3
2. A 4. 3
3. A 5. 2
4. B
5. C
6. B
7. C
8. D
9. C
10. B

NOTE: Practice Personal Hygiene Protocols at all times.

10

Activity 3:
Schematic diagram

Actual connection diagram

NOTE: Practice Personal Hygiene Protocols at all times.

11

Line diagram:

Writers:

FILOMENO M. VILORIA MATTHEW L. MANGACCAT
LAS Writer, Solano HS LAS Writer, Solano HS

NOTE: Practice Personal Hygiene Protocols at all times.

12

ELECTRICAL INSTALLATION AND
MAINTENANCE (TLE-10)

Name of Learner:________________________________ Grade Level:_______________
Section:_______________________________________ Date:_____________________

LEARNING ACTIVITY SHEET

Flexible Armored Cable Wiring
Installation

Background Information for Learners:

Flexible armored cable (type AC) is a fabricated assembly of insulated conductors
walled in flexible metal sheath. It is commonly known as BX. BX metal sheathing runs in a
helix-like or twisted manner around the wire. BX cable is difficult to rip back without a special
tool. It is expensive, difficult to find and difficult to run through studs. However, BX cable is
safer since the metal armor protects well against accidental penetrations. This cable is grounded
via its metal armor or internal green plastic-coated ground wire BX cable is cut with a hacksaw
and better with a special armored cutting tool called Roto-split. BX cable is accepted by the
national Electric Code (NEC) but the older BX cable without the internal bonding strip is not
accepted by (NEC).

In this activity, you will learn how to install a lamp controlled by a single pole switch
using flexible armored cable or BX cable. This wiring connection is just like a series circuit
where all the components are connected in series. Compared to wiring installation using the
Non-Metal sheathed cable or NM, BX wiring installation is a difficult task. Therefore, you
must understand the following basic operations in cutting the armor, assembling BX cable to
junction box, installing bushing and connectors, and locking connector in position. Before this
activity, you must first answer activity 1 and 2 in a separate sheet of paper after reading the
information sheet in the learner’s material.

Learning Competency/ Code

Install Electrical Lighting Systems, Auxiliary Outlets and lighting Fixtures.
(TLE_IAEI10EL-Ia-IIj-2)

Select appropriate Electrical tools, equipment and materials for specific tools.
Apply suitable wiring method for the job.
Install electrical wiring system using different types of wiring methods.

NOTE: Practice Personal Hygiene Protocols at all times.

13

Activity 1

Directions: Read each item carefully. Choose the option that best describes the item and write
the letter of your choice on the space provided before the number.

_____1. Which of the following types of flexible armored cable has rubber insulated

conductors inside the armor?

a. type AC b. type ACT c. type ACL d. type ACV

_____2. Which among the types of flexible armored cable below has varnish cambric

insulation?

a. type AC b. type ACT c. type ACL d. type ACV

_____3. Which of the options below has a rubber insulation and a lead sheath between the

conductor and the armor used in flexible armored cable wiring installation?

a. type AC b. type ACT c. type ACL d. type ACV

_____4. Which of these hand tools is appropriate in cutting flexible armored cable?

a. pliers b. hacksaw c. backsaw d. knife

_____5. How long is the standard measurement of free conductor inside the outlet or switch

point for making up of joint or connections of fixture or device?

a. 100mm b. 120mm c. 160mm d. 160mm

Activity 2
Directions: Make a list of electrical materials to be used in an activity “Installing one(1) lamp
controlled by a single pole switch, one (1) location using a flexible armored cable”.
1._____________________ 6. ___________________ 11. _____________________

2._____________________ 7. ___________________ 12. _____________________

3. ____________________ 8. ___________________ 13. _____________________
4._____________________ 9. ___________________ 14. _____________________

5._____________________ 10. __________________

NOTE: Practice Personal Hygiene Protocols at all times.

14

Activity 3: Wiring installation
Directions: Install “one lamp controlled by a single pole switch using a flexible armored
cable based on the given Actual Connection Diagram below.

CB

S1
- Use the scoring rubrics below to assess the performance of the students

Measurement Points
 All dimensions will be in millimeters center to center with a
tolerance of + - 3mm. (in excess of 2mm from the prescribed 20 pts.
tolerance = 0 point)
10 pts.
Workmanship 10 pts.
 Includes appropriate: 10 pts.
Bending 10 pts.
Cutting 10 pts.
Supporting 10 pts.
Horizontality and Verticality 10 pts.
10 pts.
Speed 100 pts.

Safety

Use of Appropriate PPE

Proper use of Tools and Corresponding Safety

Total

Reflection:

I have learned that ______________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________

NOTE: Practice Personal Hygiene Protocols at all times.

15

Reference:

1. https://www.coursehero.com/file/38306836/FINISH-LM-EIM-FINAL-12-27-14pdf/
2. https://www.youtube.com/watch?v=bQvqGYZrJG8
3. https://www.youtube.com/watch?v=ybk2SC85mBk
4. https://www.youtube.com/watch?v=zywNfevDAyg
5. https://www.youtube.com/watch?v=jaubfkUzcVE
6. https://www.youtube.com/watch?v=_rFfw3nclKg
7. https://www.youtube.com/watch?v=yrZaF0Ll9T4
8. EIM grade 10 learner’s material.

ANSWER KEY:

Activity 1: Multiple Choice

1. a
2. d
3. c
4. b
5. c

Activity 2: Identification

1. BX Armored Cable
2. Metallic Junction Box-Octagonal
3. Lamp Holder-Flush Type
4. Incandescent Lamp
5. Utility Box
6. Single Pole Switch-Flush Type
7. Switch Face Cover-Metal
8. Circuit Breaker
9. BX Connectors
10. BX Bushing
11. BX Metal Straps
12. Wood Screw
13. Electrical Tape
14. Wiring Board

NOTE: Practice Personal Hygiene Protocols at all times.

16

Activity 3: Wiring Installation

The diagram below shows the correct applications of wiring installation using the
flexible armored cable or BX.

Prepared by: BENITO BATARA
Aritao National High School
LARRY D. SOMERA
Dupax Del Sur National High School

NOTE: Practice Personal Hygiene Protocols at all times.

17

ELECTRICAL INSTALLATION AND
MAINTENANCE (TLE-10)

Name of Learner: ________________________________ Grade Level: ________________
Section: ________________________________________ Date: ______________________

LEARNING ACTIVITY SHEET

NON-METALLIC SHEATHED CABLE

Background Information for Learners

Nonmetallic-sheathed cable is a factory assembly of two or more insulated conductors enclosed
within an overall non-metallic jacket.

Nonmetallic-sheathed cable is used more often in residential wiring installations than in any
other wiring method. The Philippine Electrical Code permits this cable to be installed in a
building made of combustible material or wooden frame construction. It may not be used in
other types of building construction without permission from the electrical inspection
authorities.

Learning competency with code

Install electrical systems, auxiliary outlets and lighting fixtures.
(TLE_IAEI9-12EL-Ia-IIj-1)

Select appropriate electrical tools, equipment and materials for specific tasks.
Apply suitable wiring method for the job.
Install electrical wiring systems using different types of wiring methods.

Activity 1: Identification
Directions: Identify what is being described in each item. Write your answer in the spcace

provided.
__________1. It is the support used to hold the non-metallic sheathed cable in place.
__________2. The distance of every cable supports along the run of cable.
__________3. Distance in centimeters between strap and box to avoid strain.
__________4. A type of non-metallic sheathed cable that can only be used in dry and

indoor applications.
__________5. It is a type of non-metallic sheathed cable that can be used in dry, moist, and

corrosive environments
__________6. The required short circuit protection rating for a No. 12 AWG (3.5 mm2)

non-metallic sheathed cable.
__________7. It is the required short circuit protection rating for a No. 10 AWG (5.5 mm2)

non-metallic sheathed cable.
__________8. The required short circuit protection rating for a No. 14 AWG (2.0 mm2)

non-metallic sheathed cable.
__________9. Length of plastic sheathing that should be removed from the end of the

cable.
__________10. A cable that is installed in a building made of combustible materials or

wooden frame construction.

NOTE: Practice Personal Hygiene Protocols at all times.

18

Activity 2

Directions: Enumerate the steps in installing non-metallic sheathed cable.

1. _____________________________________________________________________
_____________________________________________________________________

2. _____________________________________________________________________
_____________________________________________________________________

3. _____________________________________________________________________
_____________________________________________________________________

4. _____________________________________________________________________
_____________________________________________________________________

5. _____________________________________________________________________
_____________________________________________________________________

Activity 3: Performance Task

Directions: Install the given diagram on the circuit board using the Non-metallic Sheathed
Cable

Problem:
“Lamp A and Lamp B is controlled by switch A and switch B respectively.”

LA LB

30c
m

30c
m

SA SB
40c 30c
mm
Use the scoring rubrics below to assess the performance of the students

NOTE: Practice Personal Hygiene Protocols at all times.

19

ASSESSMENT CRITERIA
The activity will be evaluated based on the following:

Functionality Points
Safety 30
Accuracy of Measurement 10
Speed 10
Supporting 10
Cutting 10
Bending 10
Horizontality and Verticality 10
10
TOTAL
100 pts.

Reflection:

What I have learned in this activity____________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________

Reference for learners:

ELECTRICAL INSTALLATION & MAINTENANCE
Learner’s Material: Module 2
By: Development team of the Learner’s Material, pp. 89-95.

NOTE: Practice Personal Hygiene Protocols at all times.

20

ANSWER KEY

Activity 1:

1. Staple/strap 6. 20A

2. 2-4 inches 7. 30A
3. 8”
8. 15A
4. NM 9. 8-10”

5. NMC 10. Non

6. 20A

7. 30A

8. 15A
9. 8-10”

10. Non-metallic Sheathed Cable

Activity 2:

1. Lay the cable on a flat work surface such as a small sheet of plywood. Starting 8-10
inches from the end, insert the tip of a utility knife blade into the center of the cable,
pushing just hard enough to cut through the sheathing.

2. Slice the sheathing, exerting even pressure. You will feel the tip of the knife rubbing
against the bare ground wire as you slice.

3. Pull back the plastic sheathing, as well as the paper that wraps the wires, exposing 8-
12 inches of wire. Snip the sheathing and paper with side cutters. If you use a utility
knife, cut away from the wires to avoid cutting or nicking the insulation

4. Insert the wires into the box. Push the wires through a hole of box, which has a tab that
grabs the cable. Check that about 1/2 inch of sheathing is visible inside the
utility/junction box.

5. Wherever possible, staple NM cable firmly to a framing member, out of reach of nails.
Staple cable within 8 inches of the box and every 2-4 feet along the run of the cable.

NOTE: Practice Personal Hygiene Protocols at all times.

21

Activity 3: LA
30cm

30cm

40cm SA SB
30cm

Prepared by:

CHRISTOPHER N. AGSUNOD
EIM Teacher

FILOMENO M. VILORIA
EIM Teacher

NOTE: Practice Personal Hygiene Protocols at all times.

22

ELECTRICAL INSTALLATION AND
MAINTENANCE (TLE-10)

Name of Learner : ________________________________ Grade Level : _______________

Section : ________________________ Date : ____________________

LEARNING ACTIVITY SHEET

Flexible Metallic Tubing (FMT)

Background Information for the Learner

A flexible metallic tubing (FMT) is one of the useful tubing in an electrical circuit. It is used
to protect wire from damage, exposure and abrasion and also to avoid accident from grounding
and open line.

A flexible metallic tubing is used for external motor terminal connection and it is being
manufactured and rolled in the form of coil. The flexible metallic tubing can maintain the wire
inside in tack.

Learning competency with code

Install electrical systems, auxiliary outlets and lighting fixtures.
(TLE_IAE19-12EL-Ia-IIj-1)

Select appropriate electrical tools, equipment and materials for specific tasks.
Apply suitable wiring method for the job.
Install electrical wiring systems using different types of wiring methods.

Activity 1

Directions: Read each item carefully. Choose the option that best describes the item and write the
letter of your choice on the space provided before the number.

____1. Which of the following conditions where flexible metallic tubing is not allowed to be

used?

a. theaters c. wet location

b. dry location d. concealed in walls

____2. How do you measure the length of a flexible metallic tubing?

a. Lay-out width

b. Measure inside diameter with a caliper

c. Measure outside diameter using a caliper

d. Measure end to end and diameter with a tool

____3. Philip had to determine the flexible metallic tubing that he will use. What size does he

get after deciding?

a. 1 1/2 b. 2 1/2 c. 3 1/2 d. 4 1/2

____4. In purchasing flexible metallic tubing, what is the most common tool used by the

buyer to measure the length of FMT?

a. Ruler b. Meter stick c. Zig-zag rule d. Pull-push rule

NOTE: Practice Personal Hygiene Protocols at all times.

23

___5. What is the length of a metal strip in a flexible metallic tubing?

a. 50 to 100 b. 50 to 200 c. 50 to 300 d. 50 to 400

___6. Jaime needs to remove the burs, after cutting the flexible metallic tubing in his TLE

class. What should he use?

a. files b. hickey c. hammer d. hacksaw

___7. What is the distance between straps or clamps in flexible metallic tubing to maintain

its diameter?

a. 134 cm closer c. 136 cm closer b. 135 cm closer

d. 137 cm closer

___8. Which of the following is NOT a flexible metallic tubing fitting?

a. Boxes c. Connector

b. Clamps/straps d. Adapter/conduit

___9. Which of the following DOES NOT belong to the group of fittings?

a. boxes c. clamps/straps

b. connectors d. adapter/locknut

___10. Which of the options below is used for setting up tightly the connector in the

electrical boxes?

a. FMT Connector c. Clamps/straps

b. Adapter/lock nut d. Junction box/utility box

Activity 2. Identification
Direction: Name the following electrical boxes. Write your answer on the space provided.

1. ___________________
2. _____________________

3. _____________________

4. _____________________
NOTE: Practice Personal Hygiene Protocols at all times.

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Activity 3

Directions: Install the given problem on the circuit board using Flexible Metallic
Tubing

Assessment Criteria

Use the scoring rubrics below to assess the performance of the students

MEASUREMENT

All dimensions will be in mm center to center with a 20 pts.
tolerance of + - 3mm. (in excess of 2mm from the
prescribed tolerance = 0 point)

Workmanship

 Bending 5 pts.
 Cutting 5 pts.
 Supporting 5 pts.
 Horizontality and verticality 5 pts.
SPEED 15 pts.
SAFETY 20 pts.
Use of appropriate PPE 10
Proper use of tools and corresponding safety 15
TOTAL 100 pts

NOTE: Practice Personal Hygiene Protocols at all times.

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Reflection:

What valuable lesson have you gained in the activity?__________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________

References for learners:

ELECTRICAL INSTALLATION & MAINTENANCE
Learner’s Material Module 2.
By: Development team of the learner’s Material, pp. 84-93

ANSWER KEY Activity 2 Activity 3
Activity 1 1. Power panel box Refer to Rubrics
2. Utility box
1. B 11. A 3. Square box
2. D 12. B 4. Junction box
3. A 13. C
4. D 14. C
5. B 15. A
6. A
7. C
8. A
9. B
10. A

Prepared by:

WILFRED P. LIGMAYO
T-III

NOTE: Practice Personal Hygiene Protocols at all times.

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ELECTRICAL INSTALLATION AND
MAINTENANCE (TLE-10)

Name of Learner: ________________________________ Grade Level: ________________
Section: ________________________________________ Date: ______________________

LEARNING ACTIVITY SHEET
Common Electrical Symbols

Background Information for Learners

This Activity is a useful document which you can use to add more knowledge and skills
that you acquired when you were in Grade 9. It includes guided instructions and procedure on
how to perform the different learning outcomes. The unit of competency Install electrical
systems, auxiliary outlets and lighting fixtures contains the knowledge, skills and attitudes
required for an Electrical Installation and Maintenance NC II course. You are required to go
through a series of activities in order to complete each of the learning outcomes of this module.

Electrical Symbols area small drawings or pictures used to represent various devices in a
diagram or plan of an electrical circuit. These symbols are used in sketching and drawing
schematic diagrams and electrical plans for various type of electrical works. Any electrical
fixtures found in a building like house has symbols that coincide with said fixture on an
electrical wiring diagram. These are very useful guide for an electrician, thus, making the
wiring easier to install.

Learning competency with code:

Install electrical systems, auxiliary outlets and lighting fixtures.
(TLE_IAEI9-12EL-Ia-IIj-1)

Select appropriate electrical tools, equipment and materials for specific tasks.
Apply suitable wiring method for the job.
Install electrical wiring systems using different types of wiring methods.

Activity 1. Analyze Electrical Symbols

Direction: Match the electrical symbol in Column A with the corresponding descriptions in
column B. Write the letter of your choice in the space provided before the item number.

COLUMN A COLUMN B

________1. A. Incandescent Lamp

NOTE: Practice Personal Hygiene Protocols at all times.

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________2. B. Four Way

________3. C. Lightning Attester
D. Lighting Panel Board
________4. S4W E. Line runs upward
F. Flame detector
________5. G. Crossed wire connected
H. Weatherproof Switch
________6.
I. Resistor
________7. J. Voltmeter
K. Battery
________8. F
________9 D
D

________10. SWP

NOTE: Practice Personal Hygiene Protocols at all times.

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Activity 2

Directions: Identify the electrical symbols used in the floor plan. Write your answer in the
grid provided below:

FLOOR PLAN A FLOOR PLAN B

Quantity FLOOR PLAN A Quantity FLOOR PLAN B
Description Description

These activities are adopted from Technology and Livelihood Education. Learner’s Material, IA- Electrical and
Installation Maintenance. First Edition. Prinpia Co., Ltd. 54 Seoul, Korea. pp 58-59.

NOTE: Practice Personal Hygiene Protocols at all times.

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The Common Electrical Symbols were illustrated by Primo A. Rivera. Floor Plan A and Floor Plan B were
illustrated by Matthew L. Mangaccat.

Reflection:

What I have learned in this activity
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________

References:

BOOKS

Edomel, Capitulo, et al. Pinoy Entrepenor: A Series on Filipino Money-making Ventures.
Module 3, Electrical Services.2000, Diwa Learning Sytems. pp. 112-116

Technology and livelihood Education. Learner’s Material, IA- Electrical and Installation
Maintenance. First Edition. Prinpia Co., Ltd. 54 Seoul, Korea. pp 58-59

WEBSITES
http://mfranzen.ca/docs/const/gen/bp_res-u2-elect-symbols-outlets-note.pdf
https://www.nrc.gov/docs/ML1025/ML102530301.pdf

ANSWER KEY Activity 2

Activity 1 Learners have different ideas, observation
and opinions.
1. K The teacher provides rubrics for the activity.
2. C
3. A Writers:
4. B
5. J
6. D
7. E
8. F
9. G
10. H

PRIMO A. RIVERA MATTHEW L. MANGACCAT
LAS Writer, Bonfal NHS Illustrator, Solano HS

NOTE: Practice Personal Hygiene Protocols at all times.

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