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EIM10-MODULE-1.pdf

This document provides information about electrical installation and maintenance for grade 10 students. It covers wires and cables, including definitions and different types. Some key points include: - Wires are conductors 3.26mm or smaller, cables are larger. Wires can be stranded or solid. - Common wire types include thermoplastic, moisture resistant thermoplastic, THHN, THWN, non-metallic sheathed cable, and more. - Conversion tables provide the equivalent diameters of American Wire Gauges in millimeters. - Ampacity is the maximum current in amperes a conductor can safely carry.

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Department of Education ELECTRICAL INSTALLATION AND MAINTENANCE (EIM) 10 Module 1 ELECTRICAL INSTALLATION AND MAINTENANCE GRADE 10 Schools Division Office – Muntinlupa City Student Center for Life Skills Bldg., Centennial Ave., Brgy. Tunasan, Muntinlupa City (02) 8805-9935 / (02) 8805-9940 GERRY V. DOMALANTA Writer JOAQUIN O. BASIJAN Validator JOSE RUBY N. SALAN Layout Artist
1 MODULE 1: Install Electrical Lighting System on Auxiliary Outlets and Lighting Fixtures Using Metallic Conduit. LESSON 1: Wires and Cables This module was designed and written with you in mind. It is here to help you install electrical lighting system on auxiliary outlets and lighting fixtures. The scope of this module permits it to be used in many different learning situations. The language used recognizes the diverse vocabulary level of students. This module comprises the installation of electrical lighting using different types of wiring method and auxiliary outlets. Among the topics that you must understand are the following: wires and cables, electrical symbols, wiring diagrams, one line diagram, schematic diagram, tools, equipment, and PPE needed and installation of lighting fixtures. After going through this lesson, you are expected to: 1. Define wires and cables 2. Identify the different types of wires and cables 3. Enumerate the conversion table of common wires used in house wiring and building wiring installation 4. Determine the maximum ampacity of a conductor based on the table of allowable ampacities of insulated conductor.
2 Pretest: Directions: Choose the letter of the best answer. Use a separate sheet of paper for your answers. 1. This is an ordinary wire use in an interior house wiring at circuit voltage up to 600 Volts. This is suitable for the type of service where the conductor temperature does not exceed 60˚C in dry or wet location. a. Moisture Resistant Thermoplastic Wire (type THW). b. Thermoplastic wire (type TW) c. Control cable (braided type) d. Flat Cord (type SPT) 2. This consists of two conductors and a ground used for wiring air-conditioning unit. a. Copper or aluminum conductor b. Non-metallic sheathed cable (type NM) c. Thermoplastic covered fixture wire (type TF) d. Air Conditioning Unit Safety Cord (type SPT). 3. These are use in an interior house wiring at circuit voltage up to 600 Volts. Suitable for the type of service where the conductor temperature does not exceed 75˚C in dry or wet location a. Moisture Resistant Thermoplastic Wire (type THW). b. Thermoplastic wire (type TW) c. Control cable (braided type) d. Flat Cord (type SPT) 4. This has 2 to 4 stranded conductors used for portable cords in electrical equipment. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT) 5. This can be solid or stranded used for wiring lighting fixtures and as terminal wires. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT)
3 6. It is flame retardant and resistant to heat, gas, and oil. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT) 7. What is the equivalent diameter size of number 10 AWG wire in millimeter (mm)? a. 2.05mm b. 2.59mm c. 3.26mm d. 3.11mm 8. What is the equivalent diameter size of number 8 AWG wire in millimeter (mm)? a. 2.05mm b. 2.59mm c. 3.26mm d. 3.11mm 9. This wire cannot be used in wet locations. a. TW b. THW c. THHN d. THWN 10. This is the maximum operating temperature of a THHN wire. a. 60°C b. 75°C c. 85°C d. 90°C 11. What is the standard size of wire used in lighting circuit? a. #14AWG b. #12AWG c. #10AWG d. #8AWG 12. The standard size of wire for air-conditioning unit is ___________. a. a. #14AWG b. #12AWG c. #10AWG d. #8AWG 13. What is the ampacity of #8 AWG, TW wire? a. 20 A b. 30 A c. 40 A d. 45 A 14. What is the size of a TW copper wire with 20Ampere ampacity? a. 2.0mm² b. 3.5mm² c. 5.5mm² d. 8.0mm² 15. What is the standard size of wire usually used in service entrance for single family dwelling? a. 2.0mm² b. 3.5mm² c. 5.5mm² d. 8.0mm²
4 This part is a review of some competencies taken up last school year. Direction: Identify the following tools and instruments IMAGES OF TOOLS & INSTRUMENTS NAME OF TOOLS & INSTRUMENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
5 In this lesson, you will be able to learn the different types of wires and cables, the standard size of wires for house wiring or building wiring installation as well as the allowable ampacities of a conductor to prevent possible trouble in wiring installation. WORD SEARCH PUZZLE Directions: Answer this word search by highlighting the word based on the given words on the right box GUESS WHAT Directions: Arrange the letter to form a word. Write the word inside the square. 1. IREW 2. DOLSI 3. TRADESDN 4. LABCE 5. CITYMAPA Given words: CABLE WIRE AMPACITY STRANDED WIRE GAUGE SOLID ALUMINUM THERMOPLASTIC COPPER CONDUCTOR
6 INFORMATION SHEET 2.1 Wires and Cables Wires are those conductors 3.26mm or No.8AWG and smaller in sizes. Cables on the other hand, are those which are larger than the wires. So, wires are small cable while cables are big wires. Wires and cables are either stranded or solid. Stranded wire- contains a group of wires twisted to form a metallic string. Solid wire- consists only of single conductor. DIFFERENT TYPES OF ELECTRIC WIRES AND CABLES DESCRIPTION AND USAGE SIZE RANGE PICTURE Copper or Aluminum Bare Conductors. These are bare wires used for overhead transmission lines and for ground wires. 1.60mm- 500mm2 Stranded and Solid Thermoplastic Wires (type TW). This is an ordinary wire use in an interior house wiring at circuit voltage up to 600 Volts. Suitable for the type of service where the conductor temperature Copper 1.60mm- 3.2mm solid 2.0mm² - 500mm² Stranded
7 does not exceed 60˚C in dry or wet location. Moisture Resistant Thermoplastic Wires (type THW). These are use in an interior house wiring at circuit voltage up to 600 Volts. Suitable for the type of service where the conductor temperature does not exceed 75˚C in dry or wet location Copper 1.60mm- 3.2mm solid 2.0mm² - 500mm² Stranded High Heat Resistant Thermoplastic Nylon coated wire (THHN) Moisture and Heat resistant Thermoplastic Nylon coated wire (THWN). Wires are coded THHN/THWN-2 which is general purpose 600 Volts that can be used in power, lighting and control wiring. Suitable for the type of service where the conductor temperature does not exceed 90˚C in dry location or wet location. THHN cannot be used in wet location. Copper 1.60mm- 3.2mm solid 2.0mm² - 500mm² Stranded Aluminum 50mm² – 400mm² stranded only Thermoplastic Fixture Wire (type TF). This can be solid or stranded used for wiring lighting fixtures and as terminal wires. 1.0mm & 1.2mm solid (1 or 2 wire) 0.75mm² &1.25mm² stranded (1 or 2 wire) Thermoplastic Fixture with Nylon Wire (type TFN). This can be solid or stranded used for wiring lighting fixtures and as terminal wires. It is flame retardant and resistant to heat, gas and oil. 1.0mm & 1.2mm solid (1 or 2 wire) 0.75mm² &1.25mm² stranded (1 or 2 wire)
8 Non-metallic Sheathed Cable (type NM). This has 2 or 3 conductors inside the cable used for exposed or concealed installation in buildings. 1.60mm- 2.60mm Solid 2.0mm² – 5.5mm² stranded Flat Cord (type SPT). 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. 0.75mm² – 3.5mm² stranded Air Conditioning Unit Safety Cord (type SPT). This consists of two conductors and a ground used for wiring airconditioning unit. 1.60mm- 2.00mm Underground Feeder and Branch Circuit Cable (type UF). This is a jacketed cable, used for wiring installation direct burial. 1.60mm- 11.68mm Intercom Cable. This shielded or unshielded cable has 3 conductors to 100 pairs, used for wiring interior communications, system and sound distribution jacketed. 0.65mm
9 Telephone Cable (type CCP). This is installed aerial and duct type for telephone wiring with color coded conductor insulators. 0.40mm- 0.91mm Submersible Pump Cable. This is thermoplastic insulated cable used for wiring submersible pumps of deep well water systems. .60mm- 11.68mm Armored Cable (type ACT),(BX). This has 2 or 3 conductors used for wiring installation in buildings. 1.60mm- 6.54mm Royal Cord. This has 2 to 4 conductors, stranded and used for portable cords in electrical equipment. .65mm- 5.19mm
10 CONVERSION TABLE OF CONDUCTORS American Wire Gauge (AWG) TO Wire Diameter Millimeter (mm) Wire Gauge # AWG Diameter in Millimeter (mm) Wire Gauge # AWG Diameter in Millimeter (mm) #40 AWG 0.078mm #17 AWG 1.150mm #39 AWG 0.088mm #16 AWG 1.291mm #38 AWG 0.101mm #15 AWG 1.450mm #37 AWG 0.114mm #14 AWG 1.628mm #36 AWG 0.127mm #13 AWG 1.829mm #35 AWG 0.142mm #12 AWG 2.052mm #34 AWG 0.160mm #11 AWG 2.300mm #33 AWG 0.180mm #10 AWG 2.590mm #32 AWG 0.203mm #9 AWG 2.910mm #31 AWG 0.226mm #8 AWG 3.263mm #30 AWG 0.254mm #7 AWG 3.674mm #29 AWG 0.287mm #6 AWG 4.115mm #28 AWG 0.320mm #5 AWG 4.621mm #27 AWG 0.360mm #4 AWG 5.189mm #26 AWG 0.403mm #3 AWG 5.827mm #25 AWG 0.454mm #2 AWG 6.543mm #24 AWG 0.510mm #1 AWG 7.358mm #23 AWG 0.574mm 0 8.251mm #22 AWG 0.652mm 00 9.265mm #21 AWG 0.723mm 000 10.404mm #20 AWG 0.812mm 0000 11.680mm #19 AWG 0.911mm 00000 13.120mm #18 AWG 1.024mm 000000 14.733mm Note: If you want to know the equivalent size of wire using the conversion table, the # 8 AWG is equal to 3.263mm or 3.2mm the actual commercial size, the # 10 AWG is equal to 2.590mm or 2.6mm the actual commercial size; the #12 AWG is equal to 2.052 mm or 2.00mm; and the # 14 AWG is equal to 1.628mm or 1.6mm. Generally, wires and cables available in the market are even numbers in American Wire Gauge. Ampacity is also called current-carrying capacity, this is the maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating. In Philippine Electrical Code (PEC), Conductors size and rating shall have sufficient ampacity to carry the load. They shall have adequate mechanical strength and shall not be less than the rating of the branch circuit and not less than the maximum load to be served. 1.6mm 2.6mm 3.2mm 2.0mm Actual Commercial size
11 The standard size of wire for electric load Electric load/appliance Size of wire to be used in AWG. mm² and mm Ampacity Lighting circuit such as bulb, compact fluorescent lamp, fluorescent lamp, etc. # 14 AWG 2.0 mm² 1.6 mm 15 Ampere Power circuit / Convenience outlet for television, radio, electric fan, etc. # 12 AWG 3.5 mm² 2.0 mm 20 Ampere Special purpose outlet for Motorized and heating appliances such air-conditioning and electric oven/stove. # 10 AWG 5.5 mm² 2.6 mm 30 Ampere For service entrance conductor # 8 AWG 8.0 mm² 3.2 mm 40 Ampere In power circuit where load is limited to small appliances such as television, computer unit, radio, electric fan, etc. the standard size of wire to be used is # 12 AWG
12 (3.5mm² or 2.0mm) and current does not exceed 20 ampere. For lighting circuit where load is incandescent bulb and fluorescent bulb the standard size of wire should be #14 AWG (2.0mm² or 1.6mm) where current should not exceed 15 amperes. For heating appliances such as electric stove and motorized load such as freezer, refrigerator, washing machine, and air-conditioning unit the size of wire shall be #10 AWG ( 5.5mm² or 2.6mm), however, heating appliance and motorized load should be in separate circuit. Lastly, the standard size of wire for service entrance is #8 AWG ( 8.0mm² or 3.2mm ) with 40 ampere for TW and 45 ampere for THW/THWN. Conductor Material One of the factors that determines the resistivity of wire is the material from which the wire is made. The table indicates that a copper conductor is permitted to carry more current than an aluminum conductor of the same size and insulation type. An 8.0 mm2 copper conductor with Type TW insulation is rated to carry a maximum of 40 amperes. An 8.0 mm2 aluminum conductor with Type TW insulation is rated to carry only 30 amperes. Another factor that determines the amount of current a conductor is permitted to carry is the type of insulation used. This is because different types of insulation can withstand more heat than others. The wire table is divided into columns that list the trade name: identification letters, maximum operating temperature, whether the insulation can be used in a wet, damp, or dry location, material, thickness, and outer covering. A good thing to remember is that insulation materials that contain the letter W, such as RHW, THW, THWN, and so on may be used in wet locations. A conductor which has an insulation material that contain dual H(HH) letters can withstand higher temperature. In the Table below, the first column on the left side is the size of wire in mm² from 2.0 down to 500. On the last column (right side) is also sizes of wire in AWG from #14 AWG down to 1000. The 2nd , 3rd 4th and 5th column from left side is the ampacity of copper wire, the unit is Ampere. The 6th , 7th , 8th , and 9th column is also the ampacity of Aluminum wire.
13 Allowable Ampacities of Insulated Conductors rated 0-2000 volts, 60 ºC to 90 ºC Not more than three conductors in raceways or cable or earth (directly buried), based on ambient temperature of 30ºC Size Temperature Rating of Conductor Size 60 ºC 75 ºC 85 ºC 90 ºC 60 ºC 75 ºC 85 ºC 90 ºC Types Types Types Types Types Types Types Types +TW, +FEPW, V TBS, SIS, +TW, +FEPW, V TBS, +UF +RH, +FEP, +UF +RH, SIS, mm2 +RHW, +FEPB, +RHW, +FEP, AWG +THW, +RHH, +THW, +FEPB, +THWN, +THHN, +THWN, +RHH, or +XHHN, +THHW, +XHHN, +THHN, kcmil +USE, +XHHW +USE, +THHW, +ZW +ZW +XHHW Copper Aluminum or Copper-clad Aluminum 2.0 15 15 25 25 … … … … 14 3.5 20 20 30 30 15 15 25 25 12 5.5 30 30 40 40 25 25 30 30 10 8.0 40 45 50 50 30 40 40 40 8 14 55 65 70 70 40 50 55 55 6 22 70 85 90 90 55 65 70 70 4 30 90 110 115 115 70 85 90 95 2 38 100 125 130 130 80 95 100 100 1 50 120 145 150 150 150 115 120 120 0 60 135 160 170 170 170 125 135 135 00 80 160 195 205 205 205 150 160 160 000 100 185 220 225 225 225 170 180 180 0000 125 210 255 265 265 170 200 210 210 250 150 240 280 295 295 190 230 240 240 300 200 280 330 355 355 225 270 290 290 400 250 315 375 400 400 260 305 330 330 500 325 370 435 470 470 295 355 380 380 600 400 405 485 515 515 330 395 420 420 800 500 485 540 580 580 370 440 475 475 1000 Size of wire in mm² Size of wire in AWG
14 How to read the table above in determining the ampacity of wire. Example: Problem 1: What is the ampacity of 5.5mm² copper wire, type THW? Answer: 30 Ampere 1. Look for the column of the types of wire (FEPW, RH, RHW, THW, THWN, XHHN, USE, ZW) such as the circled above (left side) 2. Locate the size of wire on the first column, in this case 5.5 mm2 is encircled 3. Look for the number/answer where the types of wire (THW) and the size of wire (5.5) intersect, thus, the answer is 30 Ampere. Problem 2: What is the ampacity of 6 AWG aluminum wire, type THHN? Answer: 55 Ampere 1. Look for the column of the types of wire (TBS, SIS, FEP, FEPB, RHH, THHN, THHW, XHHW) such as the circled above (right side) 2. Locate the size of wire on the first column, in this case # 6 AWG is encircled 3. Look for the number/answer where the types of wire (THHN) and the size of wire (6) intersect, thus, the answer is 55 Ampere. If the size of wire is unknown and the given is the type of wire and ampacity, look at the big arrow. Example: Given: Type of wire = THHN, 90 ⁰C Ampacity = 90 Ampere Size of wire = ? The answer is 22mm² TRY THIS! 1. What is the ampacity of 38mm² copper wire, type THW? ______________ 2. What is the ampacity of #10 AWG aluminum wire, type THHN? ______________ 3. What is the ampacity of 100mm² copper wire, type THWN? _____________ 4. What is the size of wire for THWN 75 ⁰C, 65 Ampere? ______________ 5. What is the size of wire for THHN 90 ⁰C, 130 Ampere? ______________
15 Activities for Mastery: A. Wires and Cables Identification: Directions: Identify the following images of wires and cables IMAGES OF WIRE NAME OF WIRE 1 2. 3 4. 5
16 B. Based on the Table 3.10.1.16, Determine the ampacity of the following copper conductor with type THHN, THW with ambient temperature of 75 ⁰C. 6. 2.0mm = ______Ampere 7. 3.5mm =______Ampere 8. 5.5mm =______Ampere 9. 8.0mm =______Ampere 10.14mm =______Ampere C. Based on the Table 3.10.1.16, Determine the ampacity of the following Aluminum conductor with type THHN, THHW, RHH with ambient temperature of 90 ⁰C. 11.12 AWG = ______Ampere 12.8 AWG =______Ampere 13.6 AWG =______Ampere 14.4 AWG =______Ampere 15.2 AWG =______Ampere D. Based on the Table 3.10.1.16, Determine the size of wire in mm or AWG of the following conductor. 16.Copper, 20 Ampere, THWN, 75 ⁰C = _____ 17.Aluminum, 70 Ampere, THHN, 90 ⁰C = _____ 18.Copper, 100 Ampere, TW, 60 ⁰C = _____ 19.Aluminum, 70 Ampere, TW, 60 ⁰C = _____ 20.Copper, 130 Ampere, THHN, 90 ⁰C =______ Directions: Express what you have learned in this lesson by completing the sentences below. 1. I learned how to determine the ampacity of the conductor by _____________ ______________________________________________________________ ______________________________________________________________
17 2. If ampacity is given, I also learned to look for the required size of wire by ____ ______________________________________________________________ ______________________________________________________________ 3. I knew the equivalent size of the common conductor used in house wiring. a. 14 AWG = _______mm² = ________mm b. 12 AWG = _______mm² = ________mm c. 10 AWG = _______mm² = ________mm d. 8 AWG = _______mm² = ________mm Directions: Answer the following questions. A. What is the standard size of wire for the following? 1. Electric Heating load = _________ 2. Lighting circuit = _________ 3. Motorized load = _________ 4. Power circuit = _________ 5. Service entrance = _________ B. What is the difference between wires and cables? ______________________________________________________________ ______________________________________________________________ C. What is the difference between solid wire and stranded wire? ______________________________________________________________ ______________________________________________________________ D. What is the difference between TW and THW? ______________________________________________________________ ______________________________________________________________ E. What is meant by Ampacity? ______________________________________________________________ ______________________________________________________________ CHOICES: #8 AWG #10 AWG #12 AWG #14 AWG
18 Directions: Give at least 3 answers of the following skills that you can do. SKILLS YOUR ANSWER I can determine the size of wire based on ampacity. Ex. Ampacity size of wire 15 A 2.0mm² Ampacity Size of wire 1. 2. 3. I knew the different types of wire and its acronym. Ex. TW = Moisture Resistant Thermoplastic 1. 2. 3. I can give the standard size of wire for the types of load or circuit. Ex. Types of load Size of wire Lighting circuit (bulb) 14 AWG Types of load Size of wire 1. 2. 3. I can convert the size of wire in AWG to mm or mm² Ex. AWG mm² mm 14 AWG = 2.0mm² = 1.6mm AWG mm² mm 1. 2. 3.
19 POST TEST Directions: Choose the letter of the best answer. Use a separate sheet of paper for your answers. 1. What is the ampacity of #8 AWG, TW wire? a. 20 A b. 30 A c. 40 A d. 45 A 2. What is the size of a TW copper wire with 20Ampere ampacity? a. 2.0mm² b. 3.5mm² c. 5.5mm² d. 8.0mm² 3. What is the standard size of wire usually used in service entrance for single family dwelling? a. 2.0mm² b. 3.5mm² c. 5.5mm² d. 8.0mm² 4. These are use in an interior house wiring at circuit voltage up to 600 Volts. Suitable for the type of service where the conductor temperature does not exceed 75˚C in dry or wet location a. Moisture Resistant Thermoplastic Wire (type THW). b. Thermoplastic wire (type TW) c. Control cable (braided type) d. Flat Cord (type SPT) 5. This has 2 to 4 stranded conductors used for portable cords in electrical equipment. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT) 6. This can be solid or stranded used for wiring lighting fixtures and as terminal wires. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT) 7. It is flame retardant and resistant to heat, gas, and oil. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT)
20 8. This wire cannot be used in wet locations. a. TW b. THW c. THHN d. THWN 9. This is the maximum operating temperature of a THHN wire. a. 60°C b. 75°C c. 85°C d. 90°C 10. This is an ordinary wire use in an interior house wiring at circuit voltage up to 600 Volts. This is suitable for the type of service where the conductor temperature does not exceed 60˚C in dry or wet location. a. Moisture Resistant Thermoplastic Wire (type THW). b. Thermoplastic wire (type TW) c. Control cable (braided type) d. Flat Cord (type SPT) 11. What is the standard size of wire used in lighting circuit? a. #14AWG b. #12AWG c. #10AWG d. #8AWG 12. The standard size of wire for air-conditioning unit is ___________. a. a. #14AWG b. #12AWG c. #10AWG d. #8AWG 13.This consists of two conductors and a ground used for wiring air-conditioning unit. a. Copper or aluminum conductor b. Non-metallic sheathed cable (type NM) c. Thermoplastic covered fixture wire (type TF) d. Air Conditioning Unit Safety Cord (type SPT). 14.What is the equivalent diameter size of number 10 AWG wire in millimeter (mm)? a. 2.05mm b. 2.59mm c. 3.26mm d. 3.11mm 15.What is the equivalent diameter size of number 8 AWG wire in millimeter (mm)? a. 2.05mm b. 2.59mm c. 3.26mm d. 3.11mm
21 1. If you have access to the internet, please search for additional information about the types of wires. Just type the types of wires and cables in google search. List the types of wire that you can find on the internet aside from the ones enumerated on our lesson. REFERENCES: Department of Education, Competency Based Learning Material (CBLM) Building Wiring Installation Y4 Published 2010 Department of Education Technology & Livelihood Education Electrical Installation and Maintenance 10 Learner’s Material First Edition, 2014 https://www.vwcable.com/thw-90-cable-12awg-8awg-tw-wires-cables/ https://www.distributorwire.com/tinned-copper-vs-bare-copper/ https://www.google.com/search?q=thwn&source=lnms&tbm=isch&sa=X&ved=2ahU KEwj- 8723rJDqAhUL7WEKHWoCD1sQ_AUoAXoECA0QAw&biw=1366&bih=657#imgrc= KHLMLIqMu27UvM https://www.carousell.ph/p/tf-wire-245507325/ http://www.lightbulbplanet.com/encore-18-awg-tfn-solid-copper-wire-500-ft-spool-in- red https://www.servicewire.com/Products/UFB.htm
22 ANSWER KEY PRE TEST 1. B 2. D 3. A 4. B 5. A 6. C 7. B 8. C 9. C 10.D 11.A 12.C 13.C 14.B 15.D GUESS WHAT 1. WIRE 2. SOLID 3. STRANDED 4. CABLE 5. AMPACITY NAME OF TOOLS AND INSTRUMENTS 1. Digital tester 2. Kilowatt-hour meter 3. Megger 4. Micrometer 5. Wire gauge 6. Pull push rule 7. Phase sequence tester 8. Clamp on ammeter 9. Analog mulitimeter 10.Caliper TRY THIS: 1. 125 Ampere 2. 30 Ampere 3. 220 Ampere 4. 14mm² 5. 38mm² What’s more C. 11. 25 12. 40 13. 55 14. 70 15. 95 D 16.3.5mm² 17.4 AWG 18.38mm² 19.2 AWG 20. What’s more: A. 1. copper and aluminum bare conductor 2. Air conditioning unit safety cord 3. underground feeder and branch circuit cable 4. royal cord 5. armored cable B. 6. 15 7. 20 8. 30 9. 45 10. 65
23 WORD SEARCH PUZZLE Given words: CABLE WIRE AMPACITY STRANDED WIRE GAUGE SOLID ALUMINUM THERMOPLASTIC COPPER CONDUCTOR

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EIM10-MODULE-1.pdf

  • 1.
    Department of Education ELECTRICALINSTALLATION AND MAINTENANCE (EIM) 10 Module 1 ELECTRICAL INSTALLATION AND MAINTENANCE GRADE 10 Schools Division Office – Muntinlupa City Student Center for Life Skills Bldg., Centennial Ave., Brgy. Tunasan, Muntinlupa City (02) 8805-9935 / (02) 8805-9940 GERRY V. DOMALANTA Writer JOAQUIN O. BASIJAN Validator JOSE RUBY N. SALAN Layout Artist
  • 2.
    1 MODULE 1: InstallElectrical Lighting System on Auxiliary Outlets and Lighting Fixtures Using Metallic Conduit. LESSON 1: Wires and Cables This module was designed and written with you in mind. It is here to help you install electrical lighting system on auxiliary outlets and lighting fixtures. The scope of this module permits it to be used in many different learning situations. The language used recognizes the diverse vocabulary level of students. This module comprises the installation of electrical lighting using different types of wiring method and auxiliary outlets. Among the topics that you must understand are the following: wires and cables, electrical symbols, wiring diagrams, one line diagram, schematic diagram, tools, equipment, and PPE needed and installation of lighting fixtures. After going through this lesson, you are expected to: 1. Define wires and cables 2. Identify the different types of wires and cables 3. Enumerate the conversion table of common wires used in house wiring and building wiring installation 4. Determine the maximum ampacity of a conductor based on the table of allowable ampacities of insulated conductor.
  • 3.
    2 Pretest: Directions: Choose theletter of the best answer. Use a separate sheet of paper for your answers. 1. This is an ordinary wire use in an interior house wiring at circuit voltage up to 600 Volts. This is suitable for the type of service where the conductor temperature does not exceed 60˚C in dry or wet location. a. Moisture Resistant Thermoplastic Wire (type THW). b. Thermoplastic wire (type TW) c. Control cable (braided type) d. Flat Cord (type SPT) 2. This consists of two conductors and a ground used for wiring air-conditioning unit. a. Copper or aluminum conductor b. Non-metallic sheathed cable (type NM) c. Thermoplastic covered fixture wire (type TF) d. Air Conditioning Unit Safety Cord (type SPT). 3. These are use in an interior house wiring at circuit voltage up to 600 Volts. Suitable for the type of service where the conductor temperature does not exceed 75˚C in dry or wet location a. Moisture Resistant Thermoplastic Wire (type THW). b. Thermoplastic wire (type TW) c. Control cable (braided type) d. Flat Cord (type SPT) 4. This has 2 to 4 stranded conductors used for portable cords in electrical equipment. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT) 5. This can be solid or stranded used for wiring lighting fixtures and as terminal wires. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT)
  • 4.
    3 6. It isflame retardant and resistant to heat, gas, and oil. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT) 7. What is the equivalent diameter size of number 10 AWG wire in millimeter (mm)? a. 2.05mm b. 2.59mm c. 3.26mm d. 3.11mm 8. What is the equivalent diameter size of number 8 AWG wire in millimeter (mm)? a. 2.05mm b. 2.59mm c. 3.26mm d. 3.11mm 9. This wire cannot be used in wet locations. a. TW b. THW c. THHN d. THWN 10. This is the maximum operating temperature of a THHN wire. a. 60°C b. 75°C c. 85°C d. 90°C 11. What is the standard size of wire used in lighting circuit? a. #14AWG b. #12AWG c. #10AWG d. #8AWG 12. The standard size of wire for air-conditioning unit is ___________. a. a. #14AWG b. #12AWG c. #10AWG d. #8AWG 13. What is the ampacity of #8 AWG, TW wire? a. 20 A b. 30 A c. 40 A d. 45 A 14. What is the size of a TW copper wire with 20Ampere ampacity? a. 2.0mm² b. 3.5mm² c. 5.5mm² d. 8.0mm² 15. What is the standard size of wire usually used in service entrance for single family dwelling? a. 2.0mm² b. 3.5mm² c. 5.5mm² d. 8.0mm²
  • 5.
    4 This part isa review of some competencies taken up last school year. Direction: Identify the following tools and instruments IMAGES OF TOOLS & INSTRUMENTS NAME OF TOOLS & INSTRUMENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
  • 6.
    5 In this lesson,you will be able to learn the different types of wires and cables, the standard size of wires for house wiring or building wiring installation as well as the allowable ampacities of a conductor to prevent possible trouble in wiring installation. WORD SEARCH PUZZLE Directions: Answer this word search by highlighting the word based on the given words on the right box GUESS WHAT Directions: Arrange the letter to form a word. Write the word inside the square. 1. IREW 2. DOLSI 3. TRADESDN 4. LABCE 5. CITYMAPA Given words: CABLE WIRE AMPACITY STRANDED WIRE GAUGE SOLID ALUMINUM THERMOPLASTIC COPPER CONDUCTOR
  • 7.
    6 INFORMATION SHEET 2.1 Wiresand Cables Wires are those conductors 3.26mm or No.8AWG and smaller in sizes. Cables on the other hand, are those which are larger than the wires. So, wires are small cable while cables are big wires. Wires and cables are either stranded or solid. Stranded wire- contains a group of wires twisted to form a metallic string. Solid wire- consists only of single conductor. DIFFERENT TYPES OF ELECTRIC WIRES AND CABLES DESCRIPTION AND USAGE SIZE RANGE PICTURE Copper or Aluminum Bare Conductors. These are bare wires used for overhead transmission lines and for ground wires. 1.60mm- 500mm2 Stranded and Solid Thermoplastic Wires (type TW). This is an ordinary wire use in an interior house wiring at circuit voltage up to 600 Volts. Suitable for the type of service where the conductor temperature Copper 1.60mm- 3.2mm solid 2.0mm² - 500mm² Stranded
  • 8.
    7 does not exceed60˚C in dry or wet location. Moisture Resistant Thermoplastic Wires (type THW). These are use in an interior house wiring at circuit voltage up to 600 Volts. Suitable for the type of service where the conductor temperature does not exceed 75˚C in dry or wet location Copper 1.60mm- 3.2mm solid 2.0mm² - 500mm² Stranded High Heat Resistant Thermoplastic Nylon coated wire (THHN) Moisture and Heat resistant Thermoplastic Nylon coated wire (THWN). Wires are coded THHN/THWN-2 which is general purpose 600 Volts that can be used in power, lighting and control wiring. Suitable for the type of service where the conductor temperature does not exceed 90˚C in dry location or wet location. THHN cannot be used in wet location. Copper 1.60mm- 3.2mm solid 2.0mm² - 500mm² Stranded Aluminum 50mm² – 400mm² stranded only Thermoplastic Fixture Wire (type TF). This can be solid or stranded used for wiring lighting fixtures and as terminal wires. 1.0mm & 1.2mm solid (1 or 2 wire) 0.75mm² &1.25mm² stranded (1 or 2 wire) Thermoplastic Fixture with Nylon Wire (type TFN). This can be solid or stranded used for wiring lighting fixtures and as terminal wires. It is flame retardant and resistant to heat, gas and oil. 1.0mm & 1.2mm solid (1 or 2 wire) 0.75mm² &1.25mm² stranded (1 or 2 wire)
  • 9.
    8 Non-metallic Sheathed Cable (type NM).This has 2 or 3 conductors inside the cable used for exposed or concealed installation in buildings. 1.60mm- 2.60mm Solid 2.0mm² – 5.5mm² stranded Flat Cord (type SPT). 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. 0.75mm² – 3.5mm² stranded Air Conditioning Unit Safety Cord (type SPT). This consists of two conductors and a ground used for wiring airconditioning unit. 1.60mm- 2.00mm Underground Feeder and Branch Circuit Cable (type UF). This is a jacketed cable, used for wiring installation direct burial. 1.60mm- 11.68mm Intercom Cable. This shielded or unshielded cable has 3 conductors to 100 pairs, used for wiring interior communications, system and sound distribution jacketed. 0.65mm
  • 10.
    9 Telephone Cable (type CCP).This is installed aerial and duct type for telephone wiring with color coded conductor insulators. 0.40mm- 0.91mm Submersible Pump Cable. This is thermoplastic insulated cable used for wiring submersible pumps of deep well water systems. .60mm- 11.68mm Armored Cable (type ACT),(BX). This has 2 or 3 conductors used for wiring installation in buildings. 1.60mm- 6.54mm Royal Cord. This has 2 to 4 conductors, stranded and used for portable cords in electrical equipment. .65mm- 5.19mm
  • 11.
    10 CONVERSION TABLE OFCONDUCTORS American Wire Gauge (AWG) TO Wire Diameter Millimeter (mm) Wire Gauge # AWG Diameter in Millimeter (mm) Wire Gauge # AWG Diameter in Millimeter (mm) #40 AWG 0.078mm #17 AWG 1.150mm #39 AWG 0.088mm #16 AWG 1.291mm #38 AWG 0.101mm #15 AWG 1.450mm #37 AWG 0.114mm #14 AWG 1.628mm #36 AWG 0.127mm #13 AWG 1.829mm #35 AWG 0.142mm #12 AWG 2.052mm #34 AWG 0.160mm #11 AWG 2.300mm #33 AWG 0.180mm #10 AWG 2.590mm #32 AWG 0.203mm #9 AWG 2.910mm #31 AWG 0.226mm #8 AWG 3.263mm #30 AWG 0.254mm #7 AWG 3.674mm #29 AWG 0.287mm #6 AWG 4.115mm #28 AWG 0.320mm #5 AWG 4.621mm #27 AWG 0.360mm #4 AWG 5.189mm #26 AWG 0.403mm #3 AWG 5.827mm #25 AWG 0.454mm #2 AWG 6.543mm #24 AWG 0.510mm #1 AWG 7.358mm #23 AWG 0.574mm 0 8.251mm #22 AWG 0.652mm 00 9.265mm #21 AWG 0.723mm 000 10.404mm #20 AWG 0.812mm 0000 11.680mm #19 AWG 0.911mm 00000 13.120mm #18 AWG 1.024mm 000000 14.733mm Note: If you want to know the equivalent size of wire using the conversion table, the # 8 AWG is equal to 3.263mm or 3.2mm the actual commercial size, the # 10 AWG is equal to 2.590mm or 2.6mm the actual commercial size; the #12 AWG is equal to 2.052 mm or 2.00mm; and the # 14 AWG is equal to 1.628mm or 1.6mm. Generally, wires and cables available in the market are even numbers in American Wire Gauge. Ampacity is also called current-carrying capacity, this is the maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating. In Philippine Electrical Code (PEC), Conductors size and rating shall have sufficient ampacity to carry the load. They shall have adequate mechanical strength and shall not be less than the rating of the branch circuit and not less than the maximum load to be served. 1.6mm 2.6mm 3.2mm 2.0mm Actual Commercial size
  • 12.
    11 The standard sizeof wire for electric load Electric load/appliance Size of wire to be used in AWG. mm² and mm Ampacity Lighting circuit such as bulb, compact fluorescent lamp, fluorescent lamp, etc. # 14 AWG 2.0 mm² 1.6 mm 15 Ampere Power circuit / Convenience outlet for television, radio, electric fan, etc. # 12 AWG 3.5 mm² 2.0 mm 20 Ampere Special purpose outlet for Motorized and heating appliances such air-conditioning and electric oven/stove. # 10 AWG 5.5 mm² 2.6 mm 30 Ampere For service entrance conductor # 8 AWG 8.0 mm² 3.2 mm 40 Ampere In power circuit where load is limited to small appliances such as television, computer unit, radio, electric fan, etc. the standard size of wire to be used is # 12 AWG
  • 13.
    12 (3.5mm² or 2.0mm)and current does not exceed 20 ampere. For lighting circuit where load is incandescent bulb and fluorescent bulb the standard size of wire should be #14 AWG (2.0mm² or 1.6mm) where current should not exceed 15 amperes. For heating appliances such as electric stove and motorized load such as freezer, refrigerator, washing machine, and air-conditioning unit the size of wire shall be #10 AWG ( 5.5mm² or 2.6mm), however, heating appliance and motorized load should be in separate circuit. Lastly, the standard size of wire for service entrance is #8 AWG ( 8.0mm² or 3.2mm ) with 40 ampere for TW and 45 ampere for THW/THWN. Conductor Material One of the factors that determines the resistivity of wire is the material from which the wire is made. The table indicates that a copper conductor is permitted to carry more current than an aluminum conductor of the same size and insulation type. An 8.0 mm2 copper conductor with Type TW insulation is rated to carry a maximum of 40 amperes. An 8.0 mm2 aluminum conductor with Type TW insulation is rated to carry only 30 amperes. Another factor that determines the amount of current a conductor is permitted to carry is the type of insulation used. This is because different types of insulation can withstand more heat than others. The wire table is divided into columns that list the trade name: identification letters, maximum operating temperature, whether the insulation can be used in a wet, damp, or dry location, material, thickness, and outer covering. A good thing to remember is that insulation materials that contain the letter W, such as RHW, THW, THWN, and so on may be used in wet locations. A conductor which has an insulation material that contain dual H(HH) letters can withstand higher temperature. In the Table below, the first column on the left side is the size of wire in mm² from 2.0 down to 500. On the last column (right side) is also sizes of wire in AWG from #14 AWG down to 1000. The 2nd , 3rd 4th and 5th column from left side is the ampacity of copper wire, the unit is Ampere. The 6th , 7th , 8th , and 9th column is also the ampacity of Aluminum wire.
  • 14.
    13 Allowable Ampacities ofInsulated Conductors rated 0-2000 volts, 60 ºC to 90 ºC Not more than three conductors in raceways or cable or earth (directly buried), based on ambient temperature of 30ºC Size Temperature Rating of Conductor Size 60 ºC 75 ºC 85 ºC 90 ºC 60 ºC 75 ºC 85 ºC 90 ºC Types Types Types Types Types Types Types Types +TW, +FEPW, V TBS, SIS, +TW, +FEPW, V TBS, +UF +RH, +FEP, +UF +RH, SIS, mm2 +RHW, +FEPB, +RHW, +FEP, AWG +THW, +RHH, +THW, +FEPB, +THWN, +THHN, +THWN, +RHH, or +XHHN, +THHW, +XHHN, +THHN, kcmil +USE, +XHHW +USE, +THHW, +ZW +ZW +XHHW Copper Aluminum or Copper-clad Aluminum 2.0 15 15 25 25 … … … … 14 3.5 20 20 30 30 15 15 25 25 12 5.5 30 30 40 40 25 25 30 30 10 8.0 40 45 50 50 30 40 40 40 8 14 55 65 70 70 40 50 55 55 6 22 70 85 90 90 55 65 70 70 4 30 90 110 115 115 70 85 90 95 2 38 100 125 130 130 80 95 100 100 1 50 120 145 150 150 150 115 120 120 0 60 135 160 170 170 170 125 135 135 00 80 160 195 205 205 205 150 160 160 000 100 185 220 225 225 225 170 180 180 0000 125 210 255 265 265 170 200 210 210 250 150 240 280 295 295 190 230 240 240 300 200 280 330 355 355 225 270 290 290 400 250 315 375 400 400 260 305 330 330 500 325 370 435 470 470 295 355 380 380 600 400 405 485 515 515 330 395 420 420 800 500 485 540 580 580 370 440 475 475 1000 Size of wire in mm² Size of wire in AWG
  • 15.
    14 How to readthe table above in determining the ampacity of wire. Example: Problem 1: What is the ampacity of 5.5mm² copper wire, type THW? Answer: 30 Ampere 1. Look for the column of the types of wire (FEPW, RH, RHW, THW, THWN, XHHN, USE, ZW) such as the circled above (left side) 2. Locate the size of wire on the first column, in this case 5.5 mm2 is encircled 3. Look for the number/answer where the types of wire (THW) and the size of wire (5.5) intersect, thus, the answer is 30 Ampere. Problem 2: What is the ampacity of 6 AWG aluminum wire, type THHN? Answer: 55 Ampere 1. Look for the column of the types of wire (TBS, SIS, FEP, FEPB, RHH, THHN, THHW, XHHW) such as the circled above (right side) 2. Locate the size of wire on the first column, in this case # 6 AWG is encircled 3. Look for the number/answer where the types of wire (THHN) and the size of wire (6) intersect, thus, the answer is 55 Ampere. If the size of wire is unknown and the given is the type of wire and ampacity, look at the big arrow. Example: Given: Type of wire = THHN, 90 ⁰C Ampacity = 90 Ampere Size of wire = ? The answer is 22mm² TRY THIS! 1. What is the ampacity of 38mm² copper wire, type THW? ______________ 2. What is the ampacity of #10 AWG aluminum wire, type THHN? ______________ 3. What is the ampacity of 100mm² copper wire, type THWN? _____________ 4. What is the size of wire for THWN 75 ⁰C, 65 Ampere? ______________ 5. What is the size of wire for THHN 90 ⁰C, 130 Ampere? ______________
  • 16.
    15 Activities for Mastery: A.Wires and Cables Identification: Directions: Identify the following images of wires and cables IMAGES OF WIRE NAME OF WIRE 1 2. 3 4. 5
  • 17.
    16 B. Based onthe Table 3.10.1.16, Determine the ampacity of the following copper conductor with type THHN, THW with ambient temperature of 75 ⁰C. 6. 2.0mm = ______Ampere 7. 3.5mm =______Ampere 8. 5.5mm =______Ampere 9. 8.0mm =______Ampere 10.14mm =______Ampere C. Based on the Table 3.10.1.16, Determine the ampacity of the following Aluminum conductor with type THHN, THHW, RHH with ambient temperature of 90 ⁰C. 11.12 AWG = ______Ampere 12.8 AWG =______Ampere 13.6 AWG =______Ampere 14.4 AWG =______Ampere 15.2 AWG =______Ampere D. Based on the Table 3.10.1.16, Determine the size of wire in mm or AWG of the following conductor. 16.Copper, 20 Ampere, THWN, 75 ⁰C = _____ 17.Aluminum, 70 Ampere, THHN, 90 ⁰C = _____ 18.Copper, 100 Ampere, TW, 60 ⁰C = _____ 19.Aluminum, 70 Ampere, TW, 60 ⁰C = _____ 20.Copper, 130 Ampere, THHN, 90 ⁰C =______ Directions: Express what you have learned in this lesson by completing the sentences below. 1. I learned how to determine the ampacity of the conductor by _____________ ______________________________________________________________ ______________________________________________________________
  • 18.
    17 2. If ampacityis given, I also learned to look for the required size of wire by ____ ______________________________________________________________ ______________________________________________________________ 3. I knew the equivalent size of the common conductor used in house wiring. a. 14 AWG = _______mm² = ________mm b. 12 AWG = _______mm² = ________mm c. 10 AWG = _______mm² = ________mm d. 8 AWG = _______mm² = ________mm Directions: Answer the following questions. A. What is the standard size of wire for the following? 1. Electric Heating load = _________ 2. Lighting circuit = _________ 3. Motorized load = _________ 4. Power circuit = _________ 5. Service entrance = _________ B. What is the difference between wires and cables? ______________________________________________________________ ______________________________________________________________ C. What is the difference between solid wire and stranded wire? ______________________________________________________________ ______________________________________________________________ D. What is the difference between TW and THW? ______________________________________________________________ ______________________________________________________________ E. What is meant by Ampacity? ______________________________________________________________ ______________________________________________________________ CHOICES: #8 AWG #10 AWG #12 AWG #14 AWG
  • 19.
    18 Directions: Give atleast 3 answers of the following skills that you can do. SKILLS YOUR ANSWER I can determine the size of wire based on ampacity. Ex. Ampacity size of wire 15 A 2.0mm² Ampacity Size of wire 1. 2. 3. I knew the different types of wire and its acronym. Ex. TW = Moisture Resistant Thermoplastic 1. 2. 3. I can give the standard size of wire for the types of load or circuit. Ex. Types of load Size of wire Lighting circuit (bulb) 14 AWG Types of load Size of wire 1. 2. 3. I can convert the size of wire in AWG to mm or mm² Ex. AWG mm² mm 14 AWG = 2.0mm² = 1.6mm AWG mm² mm 1. 2. 3.
  • 20.
    19 POST TEST Directions: Choosethe letter of the best answer. Use a separate sheet of paper for your answers. 1. What is the ampacity of #8 AWG, TW wire? a. 20 A b. 30 A c. 40 A d. 45 A 2. What is the size of a TW copper wire with 20Ampere ampacity? a. 2.0mm² b. 3.5mm² c. 5.5mm² d. 8.0mm² 3. What is the standard size of wire usually used in service entrance for single family dwelling? a. 2.0mm² b. 3.5mm² c. 5.5mm² d. 8.0mm² 4. These are use in an interior house wiring at circuit voltage up to 600 Volts. Suitable for the type of service where the conductor temperature does not exceed 75˚C in dry or wet location a. Moisture Resistant Thermoplastic Wire (type THW). b. Thermoplastic wire (type TW) c. Control cable (braided type) d. Flat Cord (type SPT) 5. This has 2 to 4 stranded conductors used for portable cords in electrical equipment. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT) 6. This can be solid or stranded used for wiring lighting fixtures and as terminal wires. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT) 7. It is flame retardant and resistant to heat, gas, and oil. a. Thermoplastic Fixture Wire (type TF). b. Royal cord c. Thermoplastic Fixture with Nylon Wire (type TFN). d. Flat Cord (type SPT)
  • 21.
    20 8. This wirecannot be used in wet locations. a. TW b. THW c. THHN d. THWN 9. This is the maximum operating temperature of a THHN wire. a. 60°C b. 75°C c. 85°C d. 90°C 10. This is an ordinary wire use in an interior house wiring at circuit voltage up to 600 Volts. This is suitable for the type of service where the conductor temperature does not exceed 60˚C in dry or wet location. a. Moisture Resistant Thermoplastic Wire (type THW). b. Thermoplastic wire (type TW) c. Control cable (braided type) d. Flat Cord (type SPT) 11. What is the standard size of wire used in lighting circuit? a. #14AWG b. #12AWG c. #10AWG d. #8AWG 12. The standard size of wire for air-conditioning unit is ___________. a. a. #14AWG b. #12AWG c. #10AWG d. #8AWG 13.This consists of two conductors and a ground used for wiring air-conditioning unit. a. Copper or aluminum conductor b. Non-metallic sheathed cable (type NM) c. Thermoplastic covered fixture wire (type TF) d. Air Conditioning Unit Safety Cord (type SPT). 14.What is the equivalent diameter size of number 10 AWG wire in millimeter (mm)? a. 2.05mm b. 2.59mm c. 3.26mm d. 3.11mm 15.What is the equivalent diameter size of number 8 AWG wire in millimeter (mm)? a. 2.05mm b. 2.59mm c. 3.26mm d. 3.11mm
  • 22.
    21 1. If youhave access to the internet, please search for additional information about the types of wires. Just type the types of wires and cables in google search. List the types of wire that you can find on the internet aside from the ones enumerated on our lesson. REFERENCES: Department of Education, Competency Based Learning Material (CBLM) Building Wiring Installation Y4 Published 2010 Department of Education Technology & Livelihood Education Electrical Installation and Maintenance 10 Learner’s Material First Edition, 2014 https://www.vwcable.com/thw-90-cable-12awg-8awg-tw-wires-cables/ https://www.distributorwire.com/tinned-copper-vs-bare-copper/ https://www.google.com/search?q=thwn&source=lnms&tbm=isch&sa=X&ved=2ahU KEwj- 8723rJDqAhUL7WEKHWoCD1sQ_AUoAXoECA0QAw&biw=1366&bih=657#imgrc= KHLMLIqMu27UvM https://www.carousell.ph/p/tf-wire-245507325/ http://www.lightbulbplanet.com/encore-18-awg-tfn-solid-copper-wire-500-ft-spool-in- red https://www.servicewire.com/Products/UFB.htm
  • 23.
    22 ANSWER KEY PRE TEST 1.B 2. D 3. A 4. B 5. A 6. C 7. B 8. C 9. C 10.D 11.A 12.C 13.C 14.B 15.D GUESS WHAT 1. WIRE 2. SOLID 3. STRANDED 4. CABLE 5. AMPACITY NAME OF TOOLS AND INSTRUMENTS 1. Digital tester 2. Kilowatt-hour meter 3. Megger 4. Micrometer 5. Wire gauge 6. Pull push rule 7. Phase sequence tester 8. Clamp on ammeter 9. Analog mulitimeter 10.Caliper TRY THIS: 1. 125 Ampere 2. 30 Ampere 3. 220 Ampere 4. 14mm² 5. 38mm² What’s more C. 11. 25 12. 40 13. 55 14. 70 15. 95 D 16.3.5mm² 17.4 AWG 18.38mm² 19.2 AWG 20. What’s more: A. 1. copper and aluminum bare conductor 2. Air conditioning unit safety cord 3. underground feeder and branch circuit cable 4. royal cord 5. armored cable B. 6. 15 7. 20 8. 30 9. 45 10. 65
  • 24.
    23 WORD SEARCH PUZZLE Givenwords: CABLE WIRE AMPACITY STRANDED WIRE GAUGE SOLID ALUMINUM THERMOPLASTIC COPPER CONDUCTOR