[EIM-G11] Quarter 1 - Module 1 PDF

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11 Electrical Installation and Maintenance 11 Quarter 1 – Module 1: Electrical Tools and Materials

Writers: Arnel M. Metillo and Erika Mae Solomon

Introductory Message For the facilitator: This module was collaboratively designed, developed and evaluated by the Development and Quality Assurance Teams of SDO TAPAT to assist you in helping the learners meet the standards set by the K to 12 Curriculum while overcoming their personal, social, and economic constraints in schooling. As a facilitator, you are expected to orient the learners on how to use this module. You also need to keep track of the learners' progress while allowing them to manage their own learning. Furthermore, you are expected to encourage and assist the learners as they do the tasks included in the module. For the learner: This module was designed to provide you with fun and meaningful opportunities for guided and independent learning at your own pace and time. You will be enabled to process the contents of the learning resource while being an active learner. The following are some reminders in using this module: 1. Use the module with care. Do not put unnecessary mark/s on any part of the module. Use a separate sheet of paper in answering the exercises. 2. Don’t forget to answer Let’s Try before moving on to the other activities included in the module. 3. Read the instructions carefully before doing each task. 4. Observe honesty and integrity in doing the tasks and checking your answers. 5. Finish the task at hand before proceeding to the next. 6. Return this module to your teacher/facilitator once you are through with it. If you encounter any difficulty in answering the tasks in this module, do not hesitate to consult your teacher or facilitator. Always bear in mind that you are not alone. We hope that through this material, you will experience meaningful learning and gain deep understanding of the relevant competencies. You can do it!

Let’s Learn In this module you will learn how to properly identify different materials and tools according to its function as per job requirement. This module includes activities that will widen your knowledge in classifying tools and materials according to its uses on a specific project that you can be used in a real-life situation. The module is divided into two lessons, namely: ● Lesson 1 – Electrical supplies, materials, and tools. After going through this module, you are expected to: 1. identify electrical supplies, materials, and tools; 2. classify tools according to its function as per job requirement; and 3. classify materials according to its uses on a specific project.RE

Let’s Try PRE-ASSESSMENT A. Directions: Read each statement carefully and choose the letter of the BEST answer. Write the chosen letter on a separate sheet of paper. 1. What electrician’s tool is used for removing insulation of wire and cables in low and high voltage transmission lines? A. Wire Stripper C. Electrician’s Knife B. Liquid Wire stripper D. Insulation Remover 2. This device connects and disconnects the flow of electric current in a circuit. A. Lamp holders C. Junction box B. Utility box D. Switch 3. If an electrician is tasked to remove insulation of gauge #14 wire, which of the following must be used? A. Gauge counter C. Electrician’s knife B. Wire stripper D. Wire gauge 4. If an electrician is tasked to obtain the dimensions of switches and outlets, which of the following must be used? A. Tape measure C. Multi-meter B. Gloves D. Pull-push rule 5. Which of the following is an example of a measuring tool? A. Hammer C. Hickey B. Wire Stripper D. Multimeter B. Directions: Match each function in column A with its corresponding tool in column B. Write the chosen letter on a separate sheet of paper. A B 6. Measure distances between electrical fixtures A. Hacksaw 7. Measure diameter of wires B. Ladder 8. Cut pipes and cables C. Tape measure 9. Nail wire staples D. Wire gauge 10. Used to step on to run wires in the ceiling E. Claw hammer C. Directions: Identify each electrical tool below and give its uses. Write your answer on a separate sheet of paper. 11.

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Lesson

1

Electrical supplies, materials, and tools

Electrical task can be accomplished systematically to save time, effort, and resources. Most of the work cannot be done using bare hands. The tools used by electricians may depend on the type of electrical job that are assigned to them. And to perform it well, electrical tools and materials are needed to have a successful installation and maintenance. In this lesson, you will learn the different functions or uses of each tool or equipment used in electrical wiring installations.

Let’s Recall Directions: From the scrambled letters below, recall the following terms. Write your answer on a separate sheet of paper.

OOLTS

CHMANIE

1. It is a device or implement, especially one held in the hand, used to carry out a particular function. 2. It is an apparatus using or applying mechanical power and having several parts, each with a definite function and together performing a particular task.

TRLETYECCII

3. It is a form of energy resulting from the existence of charged particles either statically as an accumulation of charge or dynamically as a current

SMEUEMRENTA

4. It is the size, length, or amount of something, as established by measuring

PLUSPY

5. It is a stock of a resource from which a person or place can be provided with the necessary amount of that resource.

Let’s Explore Directions: Based on the given picture below, list down all the electrical tools that you are familiar with. Write your answer on a separate sheet of paper.

Let’s Elaborate

Electrical Tools and Equipment Most of electrical works cannot be done using bare hands. To work easily, electrical tools or equipment are needed to perform specific jobs. Electrical Tools and Equipment might help workers to save time, labor, and resources. The following are common electrical tools and equipment needed in the installation of electrical wiring:

I.

Screw Drivers. These tools are used to loosen or tighten widthmatched slotted screws. They come in different sizes and shapes and mostly made of insulated handles and steeltoughened and strengthened tip.

A. Standard/Flat Screwdriver. It is used to drive wedge- shaped slotted screws that resembles a negative (-) sign.

B. Philips Screwdriver. This tool is used to loosen or tighten cross- shaped slotted screws that resembles a positive (+) sign.

C. Stubby Screwdriver. A Standard or Philip Screwdriver mainly used to drive screws in tight space, comes with short shank and shorted handles.

D. Allen Screwdriver/Wrench/Offset. It is used to drive hexagonal slot head that could be in the shape of screw driver.

II.

Wire puller (fish wire) is used to pull wires inside conduits, tubes or raceways.

III.

Conduit bender/ hickey is a tool used to bend metal pipe/ conduit/ tube/ raceways.

IV.

HAMMERS. These are made of plastic or rubber, hard steel and wood. Driving and pulling out nails is its main function. The following are types of hammer: A. Claw hammer B. Mallet (rubber head) C. Ballpeen hammer

A

B

C

V.

Pliers. These tools are used in handling and twisting wires and cables. They are made with either insulated or uninsulated handles and steel toughened grip. A. Combination Pliers (Lineman’s Pliers). This is used usually used by linemen in doing heavy tasks for gripping, holding, and cutting electrical wires and cables and even small nails.

B. Side Cutting Pliers. This is used by electricians for cutting fine, medium, and big wires and cables.

C. Long Nose Pliers. It can reach tight spaces or small openings and operated in making terminal loops and for cutting and holding wires.

VI.

Wire Stripper. A tool used for removing insulation of medium sized wires ranging from gauge #10 to gauge #16.

VII.

Electrician’s Knife. This is used by linemen to skin/ to remove insulation of wire and cables in low and high voltage transmission lines.

VIII.

Drilling Equipment Tool used indoor or outdoor, to make holes in building structure for passage of wires and conduits. Common types of drilling tools and equipment are: A. Portable Electric drill. A drilling equipment used on metal sheets and concrete walls to make holes with a chuck capacity of ¼”to 3/8”.

IX.

Hacksaw. This tool is used to cut metal conduit and armored cable.

X.

Soldering tools are used in making splices and taps connections of wires.

Soldering iron XI.

Soldering gun

Torch

Measuring tools and instrument. The electrician uses the following measuring tools to measure value of voltage, current and resistance, wire length, opening sizes of wire, conduit and other items.

Multitester/ Multimeter

Voltmeter

Ammeter

Metric rule

Galvanometer

Megger

Wire gauge

Micrometer caliper

Phase Sequence Tester

Vernier caliper

Clamp meter

High Potential Tester

Three Main Classification of Tools and Equipment Tools are considered as extension of human hand thus increasing speed, control and precision. It can be used to effortlessly accomplish electrical task however not consumed in the process. 1. Hand tools are tools manipulated by hands without using electrical energy such as: puller, hacksaw, pull-push rule, pliers, hammer, and others. 2. Machine/Power tools are tools manipulated by our hands and with the use of electrical energy such as: electric drill, grinding wheels, vacuum cleaner and others. Below are the types of Machine Tools: a. Pneumatic tools are tools or instruments activated by air pressure.

b. Hydraulics. An equipment used with a pressure fluid oil to accomplish work. c. Electric tools are hand tools or instruments activated by electricity. 3. Measuring Tools are used to measure currents, voltages, resistances, wattages and other important elements in electrical works.

Electrical Supplies and Materials Electrical materials are industrialized and created for a distinct purpose such as to: 1. control the flow of current in an electrical circuit; 2. carry electrical current from the source to the load or current consuming device; 3. hold and secure wires to its fixtures indoor or outdoor; and 4. protect houses, buildings, appliances’ and instruments from any destruction and damage. The following are the most commonly used electrical materials. I.

Convenience outlet- It is a device usually fastened on the wall or connected in an extension cord, where male plug is inserted and acts as a convenient source of electrical energy for current consuming appliances.

It maybe single, duplex, triplex or multiplex and could be surface type or flush type.

Surface type II.

Flush Type

Male plug- a device inserted to a convenience outlet to conduct electric current.

III.

Lamp holders- devices that hold and protect the lamp and are also called as ―Lamp Sockets/Receptacles.

Flush type

Hanging (chain)

These come in many designs and sizes. They are classified as flush, hanging (weatherproof/chain) and surface types.

Surface type

IV.

Switch - a device that connects and disconnects the flow of electric current in a circuit. There are many shapes, designs, and types and they are classified as hanging, flush, and surface types.

Flush type V.

Hanging (weather)

Hanging

Surface Type

Fuse - When a short circuit and overload happens, a circuit protective device-fuse were used that automatically blows and cut the current connection.

Plug type

Knife-blade

Cartridge

VI.

Circuit Breaker - a protective device used to automatically cut the current when trouble in the circuit such as short circuit or overload occurs.

VII.

Junction Box - An octagonal shaped electrical material made of either metal or plastic (PVC) where the connections or taps of wires are being done and where the flush type lamp holder is attached.

VIII.

Utility Box - a rectangular shaped metallic or plastic (PVC) material in which flush type convenience outlet and switch are attached.

IX.

Flat Cord- A duplex stranded wire commonly used in extension cord assembly and for temporary wiring installation.

X.

Electrical Wire/Conductor- electrical material that could be: a. Stranded wire which is made of multiple strands joined together to make a single wire. b. Solid wire is made of a single strand of copper or aluminum wire. These are used in wiring installation inside and outside the buildings.

XI.

Conduits/Pipes- electrical materials used as the passage of wires for protection and insulation. These could be rigid metallic, flexible rigid metallic conduit (FMC), nonmetallic (PVC), and flexible non-metallic or corrugated plastic conduit (CPC).

Metallic tubing

XII.

Rigid Non- metallic Tubing

Flexible Non-metallic Tubing

Clamps- electrical materials used to hold electrical conduits in its proper position.

XIII. Connectors- used to attach metallic or non-metallic conduit to the junction or utility boxes. XIV.

Fittings and accessories These are some electrical materials which are commonly used to fit wiring devices during wiring installation. The following are some examples of these materials:

Coupling

Liquid Tight Connector

Locknut and Bushing

Wire Connector

Wire Bushing

Insulated staple

Condulets

Electric tape

Sandpaper

Porcelain tubing

PVC fittings

Let’s Dig In Directions: Read the statement carefully and identify what is being described or defined. Choose your answer from the words inside the box. Write your answer on a separate sheet of paper.

Hammer

Portable Electric Drill

Philips Screwdriver Male Plug Junction Box

Wire Stripper Conduits

Combination Pliers

Stubby Screwdriver Connectors Utility Box Long Nose Pliers

______________1. This is tools used in driving or pounding and pulling out nails. ______________2. A tool used for removing insulation of medium sized wires ranging from gauge #10 to gauge #16. ______________3. 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.

______________4. Comes in either Standard or Philips screwdriver with short shank or blade and shorted handle used to turn screws in tight space where standard screwdriver cannot be used. ______________5. This is used for griping, holding, cutting electrical wires and cables and even small nails. Usually used by linemen in doing heavy tasks. ______________6. 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. ______________7. This has a cross tip resembling a positive (+) sign. It is used to drive screws with cross slot heads. ______________8. This is a rectangular shaped metallic or plastic (PVC) material in which flush type convenience outlet and switch are attached. ______________9. Are electrical materials used as the passage of wires for protection and Insulation. ______________10. Are used to attach metallic or non-metallic conduit to the junction or utility boxes.

Let’s Remember

TASK: 3-2-1 Chart! Directions: Complete the table below based on the previous discussion. Carefully read the sample statement provided as your guide. Write your answer on the separate sheet of paper.

3– Identify three facts about Electrical supplies, materials, and tools. Example: • Machine tools are tools manipulated by our hands and with the use of electrical energy such as: electric drill, grinding wheels, vacuum cleaner, and others. 1. ____________________________________ ____________________________________ ____________________________________ 2. ____________________________________ ____________________________________ ____________________________________ 1. ____________________________________ ____________________________________ ____________________________________

2 – Give two things you have learned about the lesson which you did not know before the lesson was discussed. 2. ____________________________________ ____________________________________ ____________________________________ 1. ____________________________________ ____________________________________ ____________________________________

1 – State one thing which you still want to read further about Electrical supplies, materials, and tools. 1. ____________________________________ ____________________________________ ____________________________________

Let’s Apply Directions: Based on the previous discussion, draw at least five (5) electrical tools and materials that you may find at home. Classify them according to its types, whether Hand Tools, Machine Tools, or Measuring Tools. Afterwards, give at least three (3) sentences on how and when did you use the said tools.

Let’s Evaluate A. Multiple Choice. Directions: Read each statement carefully and choose the letter of the BEST answer. Write the chosen letter on a separate sheet of paper.

______________1. This is used for griping, holding, cutting electrical wires and cables and even small nails. Usually used by linemen in doing heavy tasks. a. Combination pliers c. Long Nose pliers b. Side Cutting Pliers d. Snap Ring Pliers ______________2. 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. a. Combination pliers c. Long Nose pliers b. Side Cutting Pliers d. Snap Ring Pliers ______________3. This has a cross tip resembling a negative (-) sign. It is used to drive wedge-shaped slotted screws. a. Standard Screwdriver c. Philip Screwdriver b. Wrench d. Offset ______________4. This is a tool used to bend metal pipe / conduit / tube / raceways a. Hickey c. Mallet hammer b. Ballpeen hammer d. Slip Joint Pliers ______________5. A tool used for removing insulation of medium sized wires ranging from gauge #10 to gauge #16. a. Paper cutter c. Wire stripper b. Electrician’s knife d. Blade ______________6. 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. a. Hacksaw c. Portable Electric Drill b. Gimlet d. Auger Brace ______________7. Comes in either Standard or Philips screwdriver with short shank or blade and shorted handle used to turn screws in tight space where standard screwdriver cannot be used. a. Standard Screwdriver c. Philip Screwdriver b. Offset d. Stubby Screwdriver ______________8. Used by linemen to remove insulation of wire and cables in low and high voltage transmission lines. c. Paper cutter c. Wire stripper d. Electrician’s knife d. Blade

______________9. It is a device inserted to a convenience outlet to conduct electric current. A flat cord is attached to it on one end and the other end is connected to a current consuming instrument or appliance. a. M...